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I2C-Compatible, Wide Bandwidth, Triple 3:1 Multiplexer ADG793A/ADG793G FEATURES Bandwidth: 195 MHz Low insertion loss and on resistance: 2.6 typical On-resistance flatness 0.3 typical 3.3 V analog signal range (5 V supply, 75 load) Single 3 V/5 V supply operation Low quiescent supply current: 1 nA typical Fast switching times: tON = 185 ns, tOFF = 181 ns I2C(R)-compatible interface Compact, 24-lead LFCSP Two I2C-controllable logic outputs ESD protection 4 kV human body model (HBM) 200 V machine model (MM) 1 kV field-induced charged device model (FICDM) FUNCTIONAL BLOCK DIAGRAMS VDD GND VDD GND ADG793A S1A S1B S1C S2A S2B S2C S3A S3B S3C I2C SERIAL INTERFACE D3 D2 D1 S1A S1B S1C S2A S2B S2C S3A S3B S3C GPO1 ADG793G D1 D2 D3 I2C SERIAL INTERFACE GPO2 06030-001 APPLICATIONS RGB/YPbPr video switches HDTV Projection TV DVD-R/RW AV receivers A0 A1 A2 SDA SCL A0 A1 A2 SDA SCL Figure 1. GENERAL DESCRIPTION The ADG793A/ADG793G are monolithic CMOS devices comprising three 3:1 multiplexers/demultiplexers controllable via a standard I2C serial interface. The CMOS process provides ultralow power dissipation, yet gives high switching speed and low on resistance. The on-resistance profile is very flat over the full analog input range, and the wide bandwidth ensures excellent linearity and low distortion. These features, combined with a wide input signal range, make the ADG793A/ADG793G the ideal switching solution for a wide range of TV applications, including RGB and YPbPr video switches. The switches conduct equally well in both directions when on. In the off condition, signal levels up to the supplies are blocked. The ADG793A/ADG793G switches exhibit break-before-make switching action. The ADG793G has two general-purpose logic output pins controllable through the I2C interface, which can be used to control other non-I2C-compatible devices such as video filters. The integrated I2C interface provides a large degree of flexibility in the system design. It has three configurable I2C address pins that allow the user to connect up to eight devices to the same bus to build larger switching arrays. The ADG793A/ADG793G operate from a single 3 V or 5 V supply voltage and are available in a compact, 4 mm x 4 mm body, 24-lead, lead-free chip scale package (LFCSP). PRODUCT HIGHLIGHTS 1. 2. 3. 4. 5. 6. Wide bandwidth: 195 MHz. Ultralow power dissipation. Extended input signal range. Integrated I2C serial interface. Compact, 4 mm x 4 mm body, 24-lead, lead-free chip scale package (LFCSP). ESD protection tested as per ESD Association standards: 4 kV HBM (ANSI/ESD STM5.1-2001) 200 V MM (ANSI/ESD STM5.2-1999) 1 kV FICDM (ANSI/ESDSTM5.3.1-1999) Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461.3113 (c)2006 Analog Devices, Inc. All rights reserved. ADG793A/ADG793G TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagrams............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 I2C Timing Specifications ................................................................ 7 Timing Diagram ........................................................................... 8 Absolute Maximum Ratings............................................................ 9 ESD Caution.................................................................................. 9 Pin Configuration and Function Descriptions........................... 10 Typical Performance Characteristics ........................................... 11 Test Circuits..................................................................................... 14 Terminology .................................................................................... 16 Theory of Operation ...................................................................... 17 I2C Serial Interface ..................................................................... 17 I2C Address.................................................................................. 17 Write Operation.......................................................................... 17 LDSW Bit..................................................................................... 19 Power On/Software Reset.......................................................... 19 Read Operation........................................................................... 19 Evaluation Board ............................................................................ 20 Using the ADG793G Evaluation Board .................................. 20 Outline Dimensions ....................................................................... 23 Ordering Guide .......................................................................... 23 REVISION HISTORY 7/06--Revision 0: Initial Version Rev. 0 | Page 2 of 24 ADG793A/ADG793G SPECIFICATIONS VDD = 5 V 10%, GND = 0 V, TA = -40C to +85C, unless otherwise noted. Table 1. Parameter ANALOG SWITCH Analog Signal Range 2 On Resistance, RON On-Resistance Matching Between Channels, RON On-Resistance Flatness, RFLAT(ON) LEAKAGE CURRENTS Source Off Leakage, IS(OFF) Drain Off Leakage, ID(OFF) Channel On Leakage, ID(ON), IS(ON) DYNAMIC CHARACTERISTICS 3 tON, tENABLE tOFF, tDISABLE Break-Before-Make Time Delay, tD I2C-to-GPO Propagation Delay, tH, tL Off Isolation Channel-to-Channel Crosstalk Same Multiplexer Different Multiplexer -3 dB Bandwidth THD + N Charge Injection CS(OFF) CD(OFF) CD(ON), CS(ON) Power Supply Rejection Ratio, PSSR Differential Gain Error Differential Phase Error LOGIC INPUTS3 A0, A1, A2 Input High Voltage, VINH Input Low Voltage, VINL Input Current, IINL or IINH Input Capacitance, CIN SCL, SDA Input High Voltage, VINH Input Low Voltage, VINL Input Leakage Current, IIN Input Hysteresis Input Capacitance, CIN Conditions VS = VDD, RL = 1 M VS = VDD, RL = 75 VD = 0 V, IS = -10 mA, see Figure 22 VD = 0 V to 1 V, IS = -10 mA, see Figure 22 VD = 0 V, IS = -10 mA VD = 1 V, IS = -10 mA VD = 0 V to 1 V, IS = -10 mA VD = 4 V/1 V, VS = 1 V/4 V, see Figure 23 VD = 4 V/1 V, VS = 1 V/4 V, see Figure 23 VD = VS = 4 V/1 V, see Figure 24 CL = 35 pF, RL = 50 , VS = 2 V, see Figure 28 CL = 35 pF, RL = 50 , VS = 2 V, see Figure 28 CL = 35 pF, RL = 50 , VS1 = VS2 = 2 V, see Figure 29 ADG793G only f = 10 MHz, RL = 50 , see Figure 26 f = 10 MHz, RL = 50 , see Figure 27 Min 0 0 2.6 0.15 Typ 1 Max 4 3.3 3.5 4 0.5 0.6 0.55 Unit V V nA nA nA 240 235 ns ns ns ns dB dB dB MHz % pC pF pF pF dB % Degrees 0.3 0.25 0.25 0.25 185 181 3 1 130 -60 -55 -75 195 0.14 5 10 26 37 70 0.59 0.83 RL = 50 , see Figure 25 RL = 100 CL = 1 nF, VS = 0 V, see Figure 30 f = 20 kHz CCIR330 test signal CCIR330 test signal 2.0 VIN = 0 V to VDD 0.005 3 0.7 x VDD -0.3 VIN = 0 V to VDD 0.005 0.05 x VDD 3 0.8 1 V V A pF V V A V pF VDD + 0.3 +0.3 x VDD 1 Rev. 0 | Page 3 of 24 ADG793A/ADG793G Parameter LOGIC OUTPUTS3 SDA Pin Output Low Voltage, VOL Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage, VOL Output High Voltage, VOH POWER REQUIREMENTS IDD Conditions Min Typ 1 Max Unit ISINK = 3 mA ISINK = 6 mA 0.4 0.6 1 10 0.4 2.0 0.001 1 0.2 0.7 V V A pF V V A mA mA ILOAD = +2 mA ILOAD = -2 mA Digital inputs = 0 V or VDD, I2C interface inactive I2C interface active, fSCL = 400 kHz I2C interface active, fSCL = 3.4 MHz 1 2 3 All typical values are at TA = 25C, unless otherwise stated. Guaranteed by initial characterization, not subject to production test. Guaranteed by design, not subject to production test. Rev. 0 | Page 4 of 24 ADG793A/ADG793G VDD = 3 V 10%, GND = 0 V, TA = -40C to +85C, unless otherwise noted. Table 2. Parameter ANALOG SWITCH Analog Signal Range 2 On Resistance, RON On-Resistance Matching Between Channels, RON On-Resistance Flatness, RFLAT(ON) LEAKAGE CURRENTS Source Off Leakage, IS(OFF) Drain Off Leakage, ID(OFF) Channel On Leakage, ID(ON), IS(ON) DYNAMIC CHARACTERISTICS 3 tON, tENABLE tOFF, tDISABLE Break-Before-Make Time Delay, tD I2C-to-GPO Propagation Delay, tH, tL Off Isolation Channel-to-Channel Crosstalk Same Multiplexer Different Multiplexer -3 dB Bandwidth THD + N Charge Injection CS(OFF) CD(OFF) CD(ON), CS(ON) Power Supply Rejection Ratio, PSRR Differential Gain Error Differential Phase Error LOGIC INPUTS3 A0, A1, A2 Input High Voltage, VINH Input Low Voltage, VINL Input Current, IINL or IINH Input Capacitance, CIN SCL, SDA Input High Voltage, VINH Input Low Voltage, VINL Input Leakage Current, IIN Input Hysteresis Input Capacitance, CIN Conditions VS = VDD, RL = 1 M VS = VDD, RL = 75 VD = 0 V, IS = -10 mA, see Figure 22 VD = 0 V to 1 V, IS = -10 mA, see Figure 22 VD = 0 V, IS = -10 mA VD = 1 V, IS = -10 mA VD = 0 V to 1 V, IS = -10 mA VD = 3 V/1 V, VS = 1 V/3 V, see Figure 23 VD = 3 V/1 V, VS = 1 V/3 V, see Figure 23 VD = VS = 3 V/1 V, see Figure 24 CL = 35 pF, RL = 50 , VS = 2 V, see Figure 28 CL = 35 pF, RL = 50 , VS = 2 V, see Figure 28 CL = 35 pF, RL = 50 , VS1 = VS2 = 2 V, see Figure 29 ADG793G only f = 10 MHz, RL = 50 , see Figure 26 f = 10 MHz, RL = 50 , see Figure 27 Min 0 0 3 0.15 Typ 1 Max 2.2 1.7 4 6 0.6 1.1 2.8 Unit V V nA nA nA 260 255 ns ns ns ns dB dB dB MHz % pC pF pF pF dB % Degrees 0.3 0.25 0.25 0.25 200 197 3 1 121 -60 -55 -75 190 0.14 3.5 10 26 37 70 0.51 0.62 RL = 50 , see Figure 25 RL = 100 CL = 1 nF, VS = 0 V, see Figure 30 f = 20 kHz CCIR330 test signal CCIR330 test signal 2.0 VIN = 0 V to VDD 0.005 3 0.7 x VDD -0.3 VIN = 0 V to VDD 0.005 0.05 x VDD 3 0.8 1 V V A pF V V A V pF VDD + 0.3 +0.3 x VDD 1 Rev. 0 | Page 5 of 24 ADG793A/ADG793G Parameter LOGIC OUTPUTS3 SDA Pin Output Low Voltage, VOL Floating-State Leakage Current Floating-State Output Capacitance GPO1 Pin and GPO2 Pin Output Low Voltage, VOL Output High Voltage, VOH POWER REQUIREMENTS IDD Conditions Min Typ 1 Max Unit ISINK = 3 mA ISINK = 6 mA 3 ILOAD = +2 mA ILOAD = -2 mA Digital inputs = 0 V or VDD, I2C interface inactive I2C interface active, fSCL = 400 kHz I2C interface active, fSCL = 3.4 MHz 0.4 0.6 1 V V A pF V V A mA mA 0.4 2.0 0.001 1 0.1 0.2 1 2 3 All typical values are at TA = 25C, unless otherwise stated. Guaranteed by initial characterization, not subject to production test. Guaranteed by design, not subject to production test. Rev. 0 | Page 6 of 24 ADG793A/ADG793G I2C TIMING SPECIFICATIONS VDD = 2.7 V to 5.5 V; GND = 0 V; TA = -40C to +85C, unless otherwise noted. See Figure 2 for timing diagram. Table 3. Parameter 1 fSCL Conditions Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode Standard mode Fast mode High speed mode Standard mode Fast mode Standard mode Fast mode High speed mode Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Min Max 100 400 3.4 1.7 4 0.6 60 120 4.7 1.3 160 320 250 100 10 0 0 0 0 4.7 0.6 160 4 0.6 160 4.7 1.3 4 0.6 160 20 + 0.1 CB 10 20 20 + 0.1 CB 10 20 Unit kHz kHz MHz MHz s s ns ns s s ns ns ns ns ns s s ns ns s s ns s s ns s s s s ns ns ns ns ns ns ns ns ns Description Serial clock frequency t1 tHIGH, SCL high time t2 tLOW, SCL low time t3 tSU;DAT, data setup time t4 2 3.45 0.9 703 150 tHD;DAT, data hold time t5 tSU;STA, setup time for a repeated start condition t6 tHD;STA, hold time (repeated) start condition t7 t8 tBUF, bus free-time between a stop and a start condition tSU;STO, setup time for stop condition t9 1000 300 80 160 300 300 80 160 tRDA, rise time of SDA signal t10 tFDA, fall time of SDA signal Rev. 0 | Page 7 of 24 ADG793A/ADG793G Parameter 1 t11 Conditions Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Standard mode Fast mode High speed mode CB = 100 pF max CB = 400 pF max Fast mode High speed mode Min 20 + 0.1 CB 10 20 Max 1000 300 40 80 1000 300 80 160 300 300 40 80 50 10 Unit ns ns ns ns ns ns ns ns ns ns ns ns ns ns Description tRCL, rise time of SCL signal t11A tRCL1, rise time of SCL signal after a repeated start condition and after an acknowledge bit 20 + 0.1 CB 10 20 20 + 0.1 CB 10 20 0 0 t12 tFCL, fall time of SCL signal tSP Pulse width of suppressed spike 1 2 Guaranteed by initial characterization. CB refers to capacitive load on the bus line, tr and tf measured between 0.3 VDD and 0.7 VDD. A device must provide a data hold time for SDA in order to bridge the undefined region of the SCL falling edge. TIMING DIAGRAM t11 SCL t12 t2 t6 t4 t1 t3 t5 t10 t6 t8 t9 06030-002 SDA t7 P S S P Figure 2. Timing Diagram for 2-Wire Serial Interface Rev. 0 | Page 8 of 24 ADG793A/ADG793G ABSOLUTE MAXIMUM RATINGS TA = 25C, unless otherwise noted. Table 4. Parameter VDD to GND Analog, Digital Inputs Continuous Current, S or D Pins Peak Current, S or D Pins Operating Temperature Range Industrial (B Version) Storage Temperature Range Junction Temperature JA Thermal Impedance 24-Lead LFCSP Lead Temperature, Soldering (10 sec) IR Reflow, Peak Temperature (<20 sec) Rating -0.3 V to +6 V -0.3 V to VDD + 0.3 V or 30 mA, whichever occurs first 100 mA 300 mA (pulsed at 1 ms, 10% duty cycle max) -40C to +85C -65C to +150C 150C 30C/W 300C 260C Stresses above those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Only one absolute maximum rating can be applied at any one time. ESD CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although this product features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. Rev. 0 | Page 9 of 24 ADG793A/ADG793G PIN CONFIGURATION AND FUNCTION DESCRIPTIONS GND VDD SDA SCL A0 A1 24 23 22 21 20 19 PIN 1 INDICATOR S1A S1B D1 NC S1C NC 1 2 3 4 5 6 TOP VIEW (Not to Scale) ADG793A 18 17 16 15 14 13 A2 S3C NC D3 S3B S3A S1A S1B D1 NC S1C GPO2 1 2 3 4 5 6 24 23 22 21 20 19 PIN 1 INDICATOR GND VDD SDA SCL A0 A1 TOP VIEW (Not to Scale) ADG793G 18 17 16 15 14 13 A2 S3C NC D3 S3B S3A Figure 3. ADG793A Pin Configuration 06030-029 Figure 4. ADG793G Pin Configuration Table 5. Pin Function Descriptions Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Mnemonic S1A S1B D1 NC S1C NC/GPO2 S2A S2B D2 NC S2C NC/GPO1 S3A S3B D3 NC S3C A2 A1 A0 SCL SDA VDD GND Description A-Side Source Terminal for Mux 1. Can be an input or output. B-Side Source Terminal for Mux 1. Can be an input or output. Drain Terminal for Mux 1. Can be an input or output. Not internally connected. C-Side Source Terminal for Mux 1. Can be an input or output. Not internally connected for ADG793A. General-Purpose Logic Output 2 for ADG793G. A-Side Source Terminal for Mux 2. Can be an input or output. B-Side Source Terminal for Mux 2. Can be an input or output. Drain Terminal for Mux 2. Can be an input or output. Not internally connected. C-Side Source Terminal for Mux 2. Can be an input or output. Not internally connected for ADG793A. General-Purpose Logic Output 1 for ADG793G. A-Side Source Terminal for Mux 3. Can be an input or output B-Side Source Terminal for Mux 3. Can be an input or output. Drain Terminal for Mux 3. Can be an input or output. Not internally connected. C-Side Source Terminal for Mux 3. Can be an input or output. Logic Input. Sets Bit A2 from the third least significant bit of the 7-bit slave address. Logic Input. Sets Bit A1 from the second least significant bit of the 7-bit slave address. Logic Input. Sets Bit A0 from the first least significant bit of the 7-bit slave address. Digital Input, Serial Clock Line. Open-drain input that is used in conjunction with SDA to clock data into the device. External pull-up resistor required. Digital I/O. Bidirectional open-drain data line. External pull-up resistor required. Positive Power Supply Input. Ground (0 V) Reference. Rev. 0 | Page 10 of 24 06030-030 NOTES 1. NC = NO CONNECT. 2. THE EXPOSED PAD MUST BE TIED TO GND. NOTES 1. NC = NO CONNECT. 2. THE EXPOSED PAD MUST BE TIED TO GND. S2A 7 S2B 8 D2 9 NC 10 S2C 11 GPO1 12 S2A S2B D2 NC S2C NC 7 8 9 10 11 12 ADG793A/ADG793G TYPICAL PERFORMANCE CHARACTERISTICS 3.0 TA = 25C 1 CHANNEL VDD = 3.3V, RL = 1M VDD = 3V, RL = 1M 4.0 3.5 3.0 2.5 TA = 25C 1 CHANNEL VDD = 5.0V VDD = 4.5V VDD = 5.5V 2.5 VDD = 2.7V, RL = 1M OUTPUT SIGNAL (V) 2.0 VDD = 3.3V, RL = 75 VDD = 3V, RL = 75 VDD = 2.7V, RL = 75 RON () 06030-003 1.5 2.0 1.5 1.0 1.0 0.5 0.5 0 0 INPUT SIGNAL (V) VD (VS) (V) Figure 5. Analog Signal Range (3 V Supply) 5.0 4.5 4.0 Figure 8. On Resistance vs. VD (VS) with 5 V Supply 7 VDD = 5.5V, RL = 1M VDD = 5V, RL = 1M VDD = 5.5V, RL = 75 VDD = 4.5V, RL = 1M TA = 25C 1 CHANNEL 6 VDD = 3V TA = +85C 5 OUTPUT SIGNAL (V) 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0 0 1 2 3 INPUT SIGNAL (V) 4 VDD = 5V, RL = 75 VDD = 4.5V, RL = 75 RON () 4 TA = -40C 3 TA = +25C 2 1 TA = 25C 1 CHANNEL 5 6 06030-004 0 VD (VS) (V) Figure 6. Analog Signal Range (5 V Supply) 6 Figure 9. On Resistance vs. VD (VS) for Various Temperatures with 3 V Supply 4.5 TA = +25C 1 CHANNEL VDD = 5V TA = +85C TA = +25C TA = -40C TA = 25C 1 CHANNEL VDD = 2.7V VDD = 3.0V 4.0 3.5 5 4 VDD = 3.3V 3.0 RON () 3 RON () 2.5 2.0 1.5 1.0 2 1 0.5 0 0 06030-005 VD (VS) (V) VD (VS) (V) Figure 7. On Resistance vs. VD (VS) with 3 V Supply Figure 10. On Resistance vs. VD (VS) for Various Temperatures with 5 V Supply Rev. 0 | Page 11 of 24 06030-008 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 0.5 1.0 1.5 2.0 2.5 3.0 06030-007 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 06030-006 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0 0.5 1.0 1.5 2.0 2.5 3.0 ADG793A/ADG793G 0 TA = 25C -1 -20 0 TA = 25C VDD = 3V/5V CHARGE INJECTION (pC) VDD = 3V -3 VDD = 5V CROSSTALK (dB) -2 -40 SAME MULTIPLEXER -60 DIFFERENT MULTIPLEXER -4 -80 -5 -100 06030-009 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.1 1 10 100 1000 SOURCE VOLTAGE (V) FREQUENCY (MHz) Figure 11. Charge Injection vs. Source Voltage 220 0 -2 210 -4 TA = 25C VDD = 5V Figure 14. Crosstalk vs. Frequency tON (3V) 200 tON/tOFF (ns) tOFF (3V) 190 ATTENUATION (dB) -6 -8 -10 -12 -14 -16 -18 0.1 1 10 100 1000 06030-013 06030-014 tON (5V) 180 tOFF (5V) 170 -20 0 20 40 60 80 TEMPERATURE (C) 06030-010 160 -40 -20 0.01 FREQUENCY (MHz) Figure 12. tON/tOFF vs. Temperature 0 0 Figure 15. Bandwidth TA = 25C VDD = 3V/5V -20 TA = 25C -10 1 CHANNEL VDD = 3V/5V -20 NO DECOUPLING CAPACITORS USED -30 OFF ISOLATION (dB) -40 PSRR (dB) -40 -50 -60 -70 -80 -90 -60 -80 -100 06030-011 -120 0.01 0.1 1 10 100 1000 -100 0.0001 0.001 0.01 0.1 1 10 100 1000 FREQUENCY (MHz) FREQUENCY (MHz) Figure 13. Off Isolation vs. Frequency Figure 16. PSRR vs. Frequency Rev. 0 | Page 12 of 24 06030-012 -6 -120 0.01 ADG793A/ADG793G 0.40 0.35 0.30 GPO VOLTAGE (V) TA = 25C 6 TA = 25C 5 VDD = 5V 0.25 IDD (mA) 0.20 0.15 VDD = 3V 0.10 0.05 0 0.1 VDD = 5V 4 3 VDD = 3V 2 1 06030-015 0.6 1.1 1.6 2.1 2.6 3.1 -18 -16 -14 -12 -10 -8 -6 -4 -2 0 fCLK FREQUENCY (MHz) LOAD CURRENT (mA) Figure 17. IDD vs. fCLK Frequency 1.4 1.2 VDD = 5V 1.0 0.8 2.0 2.5 Figure 20. GPO VOH vs. Load Current TA = 25C TA = 25C VDD = 3V VDD = 5V GPO VOLTAGE (V) IDD (mA) 1.5 0.6 0.4 0.2 0 -0.2 VDD = 3V 1.0 0.5 06030-016 0 1 2 3 4 5 6 0 5 10 15 20 25 30 35 I2C LOGIC INPUT VOLTAGE (V) LOAD CURRENT (mA) Figure 18. IDD vs. I2C Logic Input Voltage (SDA, SCL) 120 Figure 21. GPO VOL vs. Load Current PROPAGATION DELAY (ns) 115 110 tPHL (5V) tPLH (5V) tPHL (3V) 105 tPLH (3V) 100 -20 0 20 40 60 80 TEMPERATURE (C) Figure 19. I2C-to-GPO Propagation Delay vs. Temperature 06030-017 95 -40 Rev. 0 | Page 13 of 24 06030-019 0 06030-018 0 -20 ADG793A/ADG793G TEST CIRCUITS VDD IDS 0.1F NETWORK ANALYZER 50 50 VS 50 D 50 GND 06030-025 V1 S VS D SA SB 06030-020 RON = V1/IDS VOUT Figure 22. On Resistance VDD Figure 25. Bandwidth 0.1F NETWORK ANALYZER S 06030-021 IS (OFF) A VS S D ID (OFF) A VD 50 50 50 VS D 50 VOUT 50 GND 06030-026 Figure 23. Off Leakage VDD Figure 26. Off Isolation 0.1F NETWORK ANALYZER S D ID (ON) A VD NC = NO CONNECT SX 50 50 VS NC 06030-022 SY DY DX 50 VOUT RL 50 Figure 24. On Leakage Figure 27. Channel-to-Channel Crosstalk Rev. 0 | Page 14 of 24 06030-027 GND 50 50 ADG793A/ADG793G CLOCK PULSES CORRESPONDING TO THE LDSW BITS SCL 5V 50% 50% 0.1F VOUT VDD S VS I2C INTERFACE SCL SDA SCL D RL 50 VOUT CL 35pF 90% 10% tON CLOCK PULSES CORRESPONDING TO THE LDSW BITS 50% 50% tOFF GND VGPO 90% 10% 06030-023 tH tL Figure 28. Switching Times 5V CLOCK PULSE CORRESPONDING TO THE LDSW BIT VDD D RL 50 I2C INTERFACE VOUT CL 35pF VOUT VS 80% SCL 0.1F SA VS SB tD GND Figure 29. Break-Before-Make Time Delay 5V VDD RS VS GND S D CL 1nF VOUT SWITCH OFF QINJ = CL x VOUT 06030-028 SWITCH ON VOUT Figure 30. Charge Injection Rev. 0 | Page 15 of 24 06030-024 SDA SCL ADG793A/ADG793G TERMINOLOGY On Resistance (RON) The series on-channel resistance measured between the S pin and D pin. On Resistance Match (RON) The channel-to-channel matching of on resistance when channels are operated under identical conditions. On Resistance Flatness (RFLAT(ON)) The variation of on resistance over the specified range produced by the specified analog input voltage change with a constant load current. Channel Off Leakage (IOFF) The sum of leakage currents into or out of an off channel input. Channel On Leakage (ION) The current loss/gain through an on-channel resistance, creating a voltage offset across the device. Input Leakage Current (IIN, IINL, IINH) The current flowing into a digital input when a specified low level voltage or high level voltage is applied to that input. Input/Output Off Capacitance (COFF) The capacitance between an analog input and ground when the switch channel is off. Input/Output On Capacitance (CON) The capacitance between the inputs or outputs and ground when the switch channel is on. Digital Input Capacitance (CIN) The capacitance between a digital input and ground. Output On Switching Time (tON) The time required for the switch channel to close. The time is measured from 50% of the falling edge of the LDSW bit to the time the output reaches 90% of the final value. Output Off Switching Time (tOFF) The time required for the switch to open. The time is measured from 50% of the falling edge of the load switch (LDSW) bit to the time the output reaches 10% of the final value. I2C-to-GPO Propagation Delay (tH, tl) The time required for the logic value at the GPO pin to settle after loading a GPO command. The time is measured from 50% of the falling edge of the LDSW bit to the time the output reaches 90% of the final value for high and 10% for low. Total Harmonic Distortion + Noise (THD + N) The ratio of the harmonic amplitudes plus noise of a signal to the fundamental. -3 dB Bandwidth The frequency at which the output is attenuated by 3 dB. Off Isolation The measure of unwanted signal coupling through an off switch. Crosstalk The measure of unwanted signal that is coupled through from one channel to another as a result of parasitic capacitance. Charge Injection The measure of the glitch impulse transferred from the digital input to the analog output during on/off switching. Differential Gain Error The measure of how much color saturation shift occurs when the luminance level changes. Both attenuation and amplification can occur; therefore, the largest amplitude change between any two levels is specified and expressed in percent (%). Differential Phase Error The measure of how much hue shift occurs when the luminance level changes. It can be a negative or positive value and is expressed in degrees of subcarrier phase. Input High Voltage (VINH) The minimum input voltage for Logic 1. Input Low Voltage (VINL) The maximum input voltage for Logic 0. Output High Voltage (VOH) The minimum input voltage for Logic 1. Output Low Voltage (VOL) The maximum output voltage for Logic 0. IDD Positive supply current. Rev. 0 | Page 16 of 24 ADG793A/ADG793G THEORY OF OPERATION The ADG793A/ADG793G are monolithic CMOS devices comprising three 3:1 multiplexers/demultiplexers controllable via a standard I2C serial interface. The CMOS process provides ultralow power dissipation, yet gives high switching speed and low on resistance. The on-resistance profile is very flat over the full analog input range, and the wide bandwidth ensures excellent linearity and low distortion. These features, combined with a wide input signal range make the ADG793A/ADG793G the ideal switching solution for a wide range of TV applications. The switches conduct equally well in both directions when on. In the off condition, signal levels up to the supplies are blocked. The integrated serial I2C interface controls the operation of the multiplexers and general-purpose logic pins (ADG793G only). The ADG793A/ADG793G has many attractive features, such as the ability to individually control each multiplexer, the option of reading back the status of any switch, and two general purpose logic output pins controllable through the I2C interface. The following sections describe these features in more detail. 3. Data transmits over the serial bus in sequences of nine clock pulses (eight data bits followed by an acknowledge bit). The transitions on the SDA line must occur during the low period of the clock signal, SCL, and remain stable during the high period of SCL, because a low-to-high transition when the clock signal is high can be interpreted as a stop event which ends the communication between the master and the addressed slave device. After transferring all data bytes, the master establishes a stop condition, defined as a low-to-high transition on the SDA line while SCL is high. In write mode, the master pulls the SDA line high during the tenth clock pulse to establish a stop condition. In read mode, the master issues a no acknowledge for the ninth clock pulse (the SDA line remains high). The master brings the SDA line low before the tenth clock pulse and then high during the tenth clock pulse to establish a stop condition. 4. I2C ADDRESS The ADG793A/ADG793G have a 7-bit I2C address. The four most significant bits are internally hardwired and the last three bits A0, A1, and A2 are user-adjustable. This allows the user to connect up to eight ADG793As/ADG793Gs to the same bus. The I2C bit map shows the configuration of the 7-bit address. I2C SERIAL INTERFACE The ADG793A/ADG793G are controlled via an I2C-compatible serial bus interface (refer to the I2C-Bus Specification available from Philips Semiconductor) that allows the part to operate as a slave device (no clock is generated by the ADG793A/ ADG793G). The communication protocol between the I2C master and the device operates as follows. 1. The master initiates data transfer by establishing a start condition defined as a high-to-low transition on the SDA line while SCL is high. This indicates that an address/data stream follows. All slave devices connected to the bus respond to the start condition and shift in the next eight bits, consisting of a 7-bit address (MSB first) plus an R/W bit. This bit determines the direction of the data flow during the communication between the master and the addressed slave device. The slave device whose address corresponds to the transmitted address responds by pulling the SDA line low during the ninth clock pulse (this is called the acknowledge bit). At this stage, all other devices on the bus remain idle while the selected device waits for data to be written to, or read from, its serial register. If the R/W bit is set high, the master reads from the slave device. However, if the R/W bit is set low, the master writes to the slave device. 7-Bit I2C Address Bit Configuration MSB 1 0 1 0 A2 A1 LSB A0 WRITE OPERATION When writing to the ADG793A/ADG793G, the user must begin with an address byte and R/W bit, after which time the switch acknowledges that it is prepared to receive data by pulling SDA low. Data is loaded into the device as a 16-bit word under the control of a serial clock input, SCL. Figure 31 illustrates the entire write sequence for the ADG793A/ ADG793G. The first data byte (AX7 to AX0) controls the status of the switches and the LDSW and RESETB bits from the second byte control the operation mode of the device. Table 6 shows a list of all commands supported by the ADG793A/ ADG793G with the corresponding byte that needs to be loaded during a write operation. To achieve the desired configuration, one or more commands can be loaded into the device. Any combination of the commands in Table 6 can be used with these restrictions: * * Only one switch from a given multiplexer can be on at any given time. When a sequence of successive commands affect the same element (that is, the switch or GPO pin), only the last command is executed. 2. Rev. 0 | Page 17 of 24 ADG793A/ADG793G SCL SDA START CONDITION BY MASTER ADDRESS BYTE ACKNOWLEDGE BY SWITCH ACKNOWLEDGE BY SWITCH A2 A1 A0 R/W AX7 AX6 AX5 AX4 AX3 AX2 AX1 AX0 X X X X X X RESETB LDSW STOP CONDITION BY MASTER 06030-031 ACKNOWLEDGE BY SWITCH Figure 31. Write Operation Table 6. ADG793A/ADG793G Command List AX7 0 1 0 1 0 1 X1 0 1 0 1 0 1 X1 0 1 0 1 0 1 X1 0 1 0 1 0 1 X1 X1 X1 X1 0 1 0 1 0 1 0 1 1 AX6 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 AX5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 AX4 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 AX3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 AX2 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 0 0 1 1 1 1 1 1 1 0 0 0 0 0 1 1 1 1 1 1 AX1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 0 0 0 0 1 1 1 0 0 1 1 1 0 0 0 0 1 1 AX0 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 0 1 0 1 1 0 0 1 1 1 1 Addressed Switch/GPO Pin S1A/D1, S2A/D2, S3A/D3 off S1A/D1, S2A/D2, S3A/D3 on S1B/D1, S2B/D2, S3B/D3 off S1B/D1, S2B/D2, S3B/D3 on S1C/D1, S2C/D2, S3C/D3 off S1C/D1, S2C/D2, S3C/D3 on Reserved S1A/D1 off S1A/D1 on S1B/D1 off S1B/D1 on S1C/D1 off S1C/D1 on Reserved S2A/D2 off S2A/D2 on S2B/D2 off S2B/D2 on S2C/D2 off S2C/D2 on Reserved S3A/D3 off S3A/D3 on S3B/D3 off S3B/D3 on S3/C/D3 off S3/C/D3 on Reserved Mux 1 disabled (all switches connected to D1 are off ) Mux 2 disabled (all switches connected to D2 are off ) Mux 3 disabled (all switches connected to D3 are off ) Reserved for ADG793A/GPO1 low for ADG793G Reserved for ADG793A/GPO1 high for ADG793G Reserved for ADG793A/GPO2 low for ADG793G Reserved for ADG793A/GPO2 high for ADG793G Reserved for ADG793A/GPO1, GPO2 low for ADG793G Reserved for ADG793A/GPO1, GPO2 high for ADG793G All muxes disabled (all switches are off ) Reserved X = Logic state does not matter. Rev. 0 | Page 18 of 24 ADG793A/ADG793G LDSW BIT The LDSW bit allows the user to control the way the device executes the commands loaded during the write operations. The ADG793A/ADG793G execute all the commands loaded between two successive write operations that have set the LDSW bit high. Setting the LDSW high for every write cycle ensures that the device executes the command right after the LDSW bit was loaded into the device. This setting can be used when the desired configuration can be achieved by sending a single command or when the switches and/or GPO pin are not required to be updated at the same time. When the desired configuration requires multiple commands with simultaneous updates, the LDSW bit should be set low while loading the commands, except the last one when the LDSW bit should be set high. Once the last command with LDSW = high is loaded, the device executes all commands received since the last update simultaneously. READ OPERATION When reading data back from the ADG793A/ADG793G, the user must begin with an address byte and R/W bit. The switch then acknowledges that it is prepared to transmit data by pulling SDA low. Following this acknowledgement, the ADG793A/ADG793G transmit two bytes on the next clock edges. These bytes contain the status of the switches, and each byte is followed by an acknowledge bit. A logic high bit represents a switch in the on (close) state while a low represents a switch in the off (open) state. For the GPO pin (ADG793G only), the bit represents the logic value of the pin. Figure 32 illustrates the entire read sequence. The bit maps accompanying Figure 32 show the relationship between the elements of the ADG793A and ADG793G (that it, the switches and GPO pins) and the bits that represent their status after a completed read operation. POWER ON/SOFTWARE RESET The ADG793A/ADG793G have a software reset function implemented by the RESETB bit from the second data byte loaded into the device during a write operation. For normal operation of the multiplexers and GPO pins, this bit should be set high. When RESETB = low or after power-up, the switches from all multiplexers are turned off (open) and the GPO pins are set low. Bit Map for the ADG793A RB15 S1A-D1 RB14 S1B-D1 RB13 S1C-D1 RB12 RB11 S2A-D2 RB10 S2B-D2 RB9 S2C-D2 RB8 RB7 S3A-D3 RB6 S3B-D3 RB5 S3C-D3 RB4 RB3 RB2 RB1 RB0 - Bit Map for the ADG793G RB15 S1A-D1 RB14 S1B-D1 RB13 S1C-D1 RB12 RB11 S2A-D2 RB10 S2B-D2 RB9 S2C-D2 RB8 RB7 S3A-D3 RB6 S3B-D3 RB5 S3C-D3 RB4 RB3 GPO1 RB2 GPO2 RB1 RB0 - Read Operation SCL A2 ADDRESS BYTE ACKNOWLEDGE BY SWITCH ACKNOWLEDGE BY SWITCH A1 A0 R/W RB15 RB14 RB13 RB12 RB11 RB10 RB9 RB8 RB7 RB6 RB5 RB4 RB3 RB2 RB1 RB0 SDA START CONDITION BY MASTER ACKNOWLEDGE BY SWITCH Figure 32. ADG793A/ADG793G Read Operation Rev. 0 | Page 19 of 24 06030-032 STOP CONDITION BY MASTER ADG793A/ADG793G EVALUATION BOARD The ADG793G evaluation kit allows designers to evaluate the high performance of the device with a minimum of effort. The evaluation kit includes a printed circuit board populated with the ADG793G. The evaluation board can be used to evaluate the performance of both the ADG793A and ADG793G. It interfaces to the USB port of a PC, or it can be used as a standalone evaluation board. Software is available with the evaluation board that allows the user to program the ADG793G easily through the USB port. The software runs on any PC that has Microsoft(R) Windows(R) 2000 or Windows XP installed with a minimum screen resolution of 1200 x 768. See Figure 33 and Figure 34 for schematics of the evaluation board. USING THE ADG793G EVALUATION BOARD The ADG793G evaluation kit is a test system designed to simplify the evaluation of the device. Each input/output of the part comes with a socket specifically chosen for easy audio/video evaluation. An evaluation board data sheet is also available and provides full instructions for operating the evaluation board. Rev. 0 | Page 20 of 24 3.3V 3.3V T1 3.3V 3.3V 24LC64 8 C22 0.1F R1 2.2k R2 2.2k J2-1 3.3V R7 0 J2-2 R5 75 C18 0.1F U2 3 7 11 17 27 32 43 55 R6 75 C23 2.2F 3.3V VCC 7 WP 6 SCL 5 VSS SDA 1 A0 2 A1 3 A2 4 T4 C4 10F C9 0.1F AVCC VCC VCC VCC VCC VCC VCC VCC 42 3.3V SCL_EN R12 2.2k G S Q1 D G T27 T28 S U4 1 2 VDD R9 2.2k J1 USB-MINI-B 44 1 2 9 8 3 4 5 54 VBUS D- D+ IO GND *DENOTES PROGRAMMABLE POLARITY. 16 15 4 5 SHIELD R31 10k R32 10k SDA 33 34 35 36 37 38 39 40 1 2 13 14 18 19 20 21 22 23 24 25 45 46 47 48 49 50 51 52 29 30 31 Q2 D SCL R10 10k 10 12 26 28 41 53 56 VDD 6 C6 0.1F C8 0.1F C20 0.1F AGND GND GND GND GND GND GND GND 06030-033 Figure 33. EVAL-ADG793GEB Schematic, USB Controller Section 3.3V ADG821 S1 D1 3 3.3V VDD IN1 IN2 XTAL1 24MHz 4 8 7 Rev. 0 | Page 21 of 24 C5 0.1F C19 0.1F C21 0.1F C7 0.1F C17 22pF B T26 3.3V C2 0.1F SCL_EN D2 GND C10 22pF S2 6 5 PB0/FD0 PB1/FD1 PB2/FD2 PB3/FD3 RESET PB4/FD4 *WAKEUP PB5/FD5 PB6/FD6 CLKOUT PB7/FD7 U3 PD0/FD8 CY7C68013-CS P PD1/FD9 D- PD2/FD10 PD3/FD11 D+ PD4/FD12 PA0/INT0 PD5/FD13 PA1/INT1 PD6/FD14 PA2/*SLOE PD7/FD15 PA3/*WU2 CTL0/*FLAGA PA4/FIFOADR0 CTL1/*FLAGB PA5/FIFOADR1 PA6/*PKTEND CTL2/*FLAGC PA7/*FLD/SLCS SDA RDY0/*SLRD SCL RDY1/*SLWR IFCLK XTALOUT RSVD XTALIN J5 A ADP3303-3.3 8 7 IN2 5 IN1 C14 10F C16 0.1F 1 C13 10F C3 0.1F OUT1 2 OUT2 6 SD ERROR 3 GND NR 4 U5 C15 0.1F R11 1k D4 ADG793A/ADG793G 3.3V 1 4 5 K7 T15 T14 T13 T12 T11 T10 GND 2 BOTTOM 3 CASE TOP CASE R25 PHONO_DUAL R26 T18 1 4 5 K8 R27 GND 2 BOTTOM 3 CASE TOP CASE PHONO_DUAL R28 T20 T22 T23 PADDLE 1 4 5 K9 GND 2 BOTTOM 3 CASE TOP CASE R29 GPO1 R36 0 PHONO_DUAL R30 06030-034 ADG793A/ADG793G Figure 34. EVAL-ADG793GEB Schematic, Chip Section Rev. 0 | Page 22 of 24 4 1 1 4 1 K6 K5 K4 PHONO_DUAL PHONO_DUAL PHONO_DUAL GND 2 BOTTOM 3 CASE TOP 5 CASE GND 2 BOTTOM 4 3 CASE TOP 5 CASE GND 2 BOTTOM 3 CASE TOP 5 CASE GPO2 R24 T16 T17 T19 T21 SDA SCL R23 A 12 11 10 9 8 7 25 R22 R21 T2 T3 R20 R19 R13 PHONO_DUAL 5 2 CASE 3 TOP 4 CASE BOTTOM 1 GND R14 K3 R15 PHONO_DUAL 5 6 5 4 3 2 1 13 14 15 16 17 18 ADG793G 2 R34 0 R35 0 A CASE 3 TOP 4 CASE BOTTOM 1 GND K2 R3 10k R4 10k R8 10k U1 19 20 21 22 23 24 R16 R17 PHONO_DUAL 5 T24 2 T7 T25 T8 T9 CASE 3 TOP 4 CASE BOTTOM 1 GND K1 R18 J3 J7 J8 GPO2 GPO1 T5 T6 J6-3 J6-2 J6-1 SCL SDA C1 0.1F VDD J4-2 J4-3 J4-1 SCL SDA ADG793A/ADG793G OUTLINE DIMENSIONS 4.00 BSC SQ 0.60 MAX 0.60 MAX 0.50 BSC 0.50 0.40 0.30 1.00 0.85 0.80 12 MAX 0.80 MAX 0.65 TYP 19 18 EXPOSED PAD 24 1 PIN 1 INDICATOR *2.45 2.30 SQ 2.15 6 PIN 1 INDICATOR TOP VIEW 3.75 BSC SQ (BO TTOMVIEW) 13 12 7 0.23 MIN 2.50 REF 0.05 MAX 0.02 NOM 0.20 REF COPLANARITY 0.08 SEATING PLANE 0.30 0.23 0.18 *COMPLIANT TO JEDEC STANDARDS MO-220-VGGD-2 EXCEPT FOR EXPOSED PAD DIMENSION Figure 35. 24-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 4 mm x 4 mm Body, Very Thin Quad (CP-24-2) Dimensions shown in millimeters ORDERING GUIDE Model ADG793ABCPZ-REEL 1 ADG793ABCPZ-500RL71 ADG793ACCPZ-REEL1 ADG793ACCPZ-500RL71 ADG793GBCPZ-REEL1 ADG793GBCPZ-500RL71 ADG793GCCPZ-REEL1 ADG793GCCPZ-500RL71 EVAL-ADG793GEB 2 1 2 Temperature Range -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C -40C to +85C I2C Speed 100 kHz, 400 kHz 100 kHz, 400 kHz 100 kHz, 400 kHz, 3.4 MHz 100 kHz, 400 kHz, 3.4 MHz 100 kHz, 400 kHz 100 kHz, 400 kHz 100 kHz, 400 kHz, 3.4 MHz 100 kHz, 400 kHz, 3.4 MHz Package Description 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ 24-Lead LFCSP_VQ Evaluation Board Package Option CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 CP-24-2 Z = Pb-free part. Evaluation board is RoHS compliant. Rev. 0 | Page 23 of 24 ADG793A/ADG793G NOTES Purchase of licensed I2C components of Analog Devices or one of its sublicensed Associated Companies conveys a license for the purchaser under the Philips I2C Patent Rights to use these components in an I2C system, provided that the system conforms to the I2C Standard Specification as defined by Philips. (c)2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D06030-0-7/06(0) Rev. 0 | Page 24 of 24 |
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