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| TK15412 75 VIDEO LINE DRIVER FEATURES s Fixed Gain (6 dB) s Internal 75 Driver with Clamp Circuit s Very Small Output Capacitor Using SAG Function Pin s Active High ON/OFF Control s Very Low Standby Current (typ. ISTBY 25 A) s 2 Input/1 Output Video Switch s Single +5 V Power Supply Operation APPLICATIONS s s s s s s Video Equipment Digital Cameras CCD Cameras TV Monitors Video Tape Recorders LCD Projectors DESCRIPTION Operating from a single +5 V supply, the TK15412 is a single-channel video line driver IC that takes two standard video analog inputs and provides one buffered analog output for driving a 150 load. The TK15412 features a built-in 2 input/1 output video switch on the input. The selected video input signal (1VP-P typical) is internally clamped at 1.25 V and amplified 6 dB to produce 2 VP-P (typical) into a series 75 resistor and 75 cable load. During standby (Pin 5 grounded), the TK15412 consumes only 125 W of power. Nominal power dissipation (no input) is typically 73 mW. The TK15412M is available in the SOT23L-8 surface mount package. TK15412 INPUT_A OUTPUT 01S VCC INPUT_B SAG GND CHANGE-OVER SW STANDBY BLOCK DIAGRAM VCC 75 Driver 1.5 k ORDERING INFORMATION 5 k 5 k GND TK15412M Tape/Reel Code TAPE/REEL CODE TL: Tape Left January 2000 TOKO, Inc. Page 1 TK15412 ABSOLUTE MAXIMUM RATINGS Supply Voltage ........................................................... 6 V Operating Voltage Range .............................. 4.5 to 5.5 V Power Dissipation (Note 1) ................................ 200 mW Storage Temperature Range ................... -55 to +150 C Operating Temperature Range ...................-25 to +85 C TK15412M ELECTRICAL CHARACTERISTICS Test conditions: VCC = 5.0 V, VIN = 1.0 VP-P, RL = 150 , TA = 25 C unless otherwise specified. SYMBOL ICC ISTBY IOS VTHL(SW) VTLH(SW) VTHL(STBY) VTLH(STBY) VCMP GVA DG DP fr CT1 C T2 PARAMETER Supply Current Standby Supply Current Standby Terminal Current Switch Threshold Voltage (High to Low) Switch Threshold Voltage (Low to High) Standby Threshold Voltage (High to Low) Standby Threshold Voltage (Low to High) Clamp Voltage Voltage Gain Differential Gain Differential Phase Frequency Response Cross Talk 1 Cross Talk 2 TEST CONDITIONS No input Pin 5 Grounded Pin 5 in Standby mode Pin 4 Pin 4 Pin 5 Operating to Standby mode Pin 5 Standby to Operating mode Pin 1, Pin 3 Pin 1, Pin 3 Pin 1, Pin 3 Pin 1, Pin 3 Input terminal fIN = 1 MHz Staircase signal Staircase signal GND 2.00 GND 2.00 1.05 5.45 -3.0 -3.0 1.25 5.95 +1.6 +0.2 -0.3 -65 -70 MIN TYP 14.5 25.0 25.0 MAX 20.0 50.0 50.0 0.80 VCC 0.60 VCC 1.45 6.45 +3.0 +3.0 UNITS mA A A V V V V V dB % deg dB dB dB Pin 1, Pin 3 fIN = 1 MHz / 5 MHz InputA - Output InputB - Output fIN = 1 MHz fIN = 1 MHz Note 1: Power dissipation is 200 mW in free air. Derate at 1.6 mW/C for operation above 25C. Page 2 January 2000 TOKO, Inc. TK15412 TEST CIRCUIT VCC TP4 VCC = 5.0 V Input A + TP1A 75 4.7 F Output VOUT = 2.0 VP-P TP2 + 33 F + TP1B 75 4.7 F Input B + 33 F + TP3 33 F 75 75 Switch Truth Table Pin 4 L H Output Pin 1 Pin 3 MEASUREMENT METHOD 1. Supply Current (ICC) The Pin 2 current is measured with no input signal and the Standby Pin (Pin 5) open. 2. Standby Supply Current (ISTBY) The Pin 2 current is measured when the Standby Pin (Pin 5) is connected to ground. 3. Standby Terminal Current (IOS) The Pin 5 current is measured when the Standby Pin (Pin 5) is connected to ground. 4. Standby Threshold Voltage (High to Low) (VTHL(STBY)) The Pin 5 voltage is measured at the point which changes the device from operating mode into standby mode. 5. Standby Threshold Voltage (Low to High) (VTLH(STBY)) The Pin 5 voltage is measured at the point which changes the device from standby mode into operating mode. January 2000 TOKO, Inc. Page 3 TK15412 MEASUREMENT METHOD (CONT.) 6. Switch Threshold Voltage (High to Low) (VTHL(SW)) The TP4 voltage is decreased very slowly. The TP4 voltage level is measured at the point where the TP1A signal is applied to TP2 and the TP1B signal is stopped from TP2. 7. Switch Threshold Voltage (Low to High) (VTLH(SW)) The TP4 voltage is increased very slowly. The TP4 voltage level is measured at the point where the TP1A signal is stopped at TP2 and the TP1B signal is applied to TP2. 8. Clamp Voltage (VCMP) The DC voltage at Pin 1 and Pin 3 is measured with no input signal. 9. Voltage Gain (GVA) The voltage gain equation is as follows: GVA = 20 log10 V2/V1 Where V1 is the input voltage at TP1A and TP1B, and V2 is the measured voltage at TP2. 10. Differential Gain (DG) The differential gain is measured at TP3 when a staircase waveform of 10 steps is applied to TP1A and TP1B. 11. Differential Phase (DP) The differential phase is measured at TP3 when a staircase waveform of 10 steps is applied to TP1A and TP1B. 12. Frequency Response (fr) The frequency response equation is as follows: fr = 20 log10 V2/V1 Where V1 is the measured TP3 voltage when the input frequency is set to 1 MHz and V2 is the measured TP3 voltage when the input frequency is set to 5 MHz. 13. Cross Talk 1 (CT1) The cross talk 1 equation is as follows: CT1 = 20 log10 V1/V2 When TP4 is connected to a High level, V1 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1A. V2 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1B. 14. Cross Talk 2 (CT2) The cross talk 2 equation is as follows: CT2 = 20 log10 V1/V2 When TP4 is connected to a Low level, V1 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1B. V2 is measured at TP2 when a 1 MHz 1 VP-P input signal is applied to TP1A. Page 4 January 2000 TOKO, Inc. TK15412 TYPICAL PERFORMANCE CHARACTERISTICS SUPPLY CURRENT VS. TEMPERATURE 17 VCC = 5.0 V, No Input SUPPLY CURRENT VS. SUPPLY VOLTAGE 17 TA = 25 C, No Input STANDBY SUPPLY CURRENT VS. TEMPERATURE 50 VCC = 5.0 V, No Input 16 ICC (mA) ICC (mA) 16 ISTBY (A) 40 30 20 10 0 -50 15 14 13 12 -50 15 14 13 12 4.0 0 TA (C) 50 100 4.5 5.0 VCC (V) 5.5 6.0 0 TA (C) 50 100 STANDBY SUPPLY CURRENT VS. SUPPLY VOLTAGE 50 TA = 25 C, No Input VOLTAGE GAIN VS. TEMPERATURE 8.0 VCC = 5.0 V, fIN = 1 MHz, VIN = 1 VP-P VOLTAGE GAIN VS. SUPPLY VOLTAGE 8.0 TA = 25 C, fIN = 1 MHz, VIN = 1 VP-P 40 ISTBY (A) 30 20 10 0 4.0 7.0 7.0 GVA (dB) GVA (dB) 6.0 6.0 5.0 5.0 4.5 5.0 VCC (V) 5.5 6.0 4.0 -50 0 TA (C) 50 100 4.0 4.0 4.5 5.0 VCC (V) 5.5 6.0 FREQUENCY RESPONSE VS. TEMPERATURE 0.5 fIN = 1/5 MHz, VIN = 1 VP-P FREQUENCY RESPONSE VS. SUPPLY VOLTAGE 0.5 fIN = 1/5 MHz, VIN = 1 VP-P CLAMP VOLTAGE VS. TEMPERATURE 1.5 VCC = 5 V, Pin 1 Voltage 0.0 0.0 1.4 VCMP (V) fr (dB) fr (dB) -0.5 -0.5 1.3 -1.0 -1.0 1.2 -1.5 -50 0 TA (C) 50 100 -1.5 4.0 4.5 5.0 VCC (V) 5.5 6.0 1.1 -50 0 TA (C) 50 100 January 2000 TOKO, Inc. Page 5 TK15412 TYPICAL PERFORMANCE CHARACTERISTICS (CONT.) CLAMP VOLTAGE VS. SUPPLY VOLTAGE 1.5 TA = 25 C, Pin 1 Voltage DIFFERENTIAL GAIN VS. TEMPERATURE 6.0 4.0 2.0 0.0 VCC = 5.0 V, VIN = 1 VP-P 1.4 VCMP (V) 1.3 1.2 1.1 4.0 4.5 5.0 VCC (V) 5.5 6.0 DG (%) -2.0 -4.0 -50 0 TA (C) 50 100 DIFFERENTIAL GAIN VS. SUPPLY VOLTAGE 30 TA = 25 C, VIN = 1 VP-P DIFFERENTIAL PHASE VS. TEMPERATURE 6.0 4.0 DP (deg) VCC = 5.0 V, VIN = 1 VP-P 20 DG (%) 2.0 0.0 10 0 -2.0 -4.0 -50 -10 4.0 4.5 5.0 VCC (V) 5.5 6.0 0 TA (C) 50 100 DIFFERENTIAL PHASE VS. SUPPLY VOLTAGE 6.0 4.0 TA = 25 C, VIN = 1 VP-P DP (deg) 2.0 0.0 -2.0 -4.0 4.0 4.5 5.0 VCC (V) 5.5 6.0 Page 6 January 2000 TOKO, Inc. TK15412 PIN FUNCTION DESCRIPTION TERMINAL PIN NO. 1 3 INTERNAL EQUIVALENT CIRCUIT SYMBOL INPUT_A INPUT_B VOLTAGE 1.25 V 1.25 V VCC DESCRIPTION Luminance Input Terminal. The luminance input signal is clamped at 1.25 V. 1.25 V 2 4 VCC CHANGE-OVER SW VCC VCC Power Supply Terminal Change-Over Switch Terminal for selecting the luminance signal input. The input_A signal is applied to the output when Pin 4 is connected to Low. The input_B signal is applied to the output when Pin 4 is connected to High. Standby Logic Terminal. The device is in the standby mode when Pin 5 is connected to Low. The device is in the operating mode when Pin 5 is connected to High or Open. 75 k 75 k 5 STANDBY 2.1 V VCC 200 k 5k 6 7 8 GND SAG OUTPUT GND 1.25 V 1.25 V VCC GND Terminal Pin 7: SAG Terminal. Pin 8: Luminance Output Terminal. The luminance output is available to drive a 75 + 75 load. 1.5 k 5k January 2000 TOKO, Inc. Page 7 TK15412 PACKAGE OUTLINE SOT23L-8 0.45 Marking Information Marking 412 TK15412 8 5 marking 1.0 e 0.8 1 e 0.8 4 +0.15 - 0.05 Recommended Mount Pad 0.1 M 0.3 +0.3 3.5 - 0.1 (3.4) 0.3 2.2 1.4max 1.2 e1 3.0 0 - 0.1 +0.15 - 0.05 0.4 + 0.3 0.15 0.1 3.3 Dimensions are shown in millimeters Tolerance: x.x = 0.2 mm (unless otherwise specified) Toko America, Inc. Headquarters 1250 Feehanville Drive, Mount Prospect, Illinois 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 TOKO AMERICA REGIONAL OFFICES Midwest Regional Office Toko America, Inc. 1250 Feehanville Drive Mount Prospect, IL 60056 Tel: (847) 297-0070 Fax: (847) 699-7864 Western Regional Office Toko America, Inc. 2480 North First Street , Suite 260 San Jose, CA 95131 Tel: (408) 432-8281 Fax: (408) 943-9790 Eastern Regional Office Toko America, Inc. 107 Mill Plain Road Danbury, CT 06811 Tel: (203) 748-6871 Fax: (203) 797-1223 Semiconductor Technical Support Toko Design Center 4755 Forge Road Colorado Springs, CO 80907 Tel: (719) 528-2200 Fax: (719) 528-2375 Visit our Internet site at http://www.tokoam.com The information furnished by TOKO, Inc. is believed to be accurate and reliable. However, TOKO reserves the right to make changes or improvements in the design, specification or manufacture of its products without further notice. TOKO does not assume any liability arising from the application or use of any product or circuit described herein, nor for any infringements of patents or other rights of third parties which may result from the use of its products. No license is granted by implication or otherwise under any patent or patent rights of TOKO, Inc. Page 8 (c) 2000 Toko, Inc. All Rights Reserved IC-xxx-TK15412 0100O0.0K 15 max January 2000 TOKO, Inc. Printed in the USA |
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