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| 5V/3.3V VARIABLE OUTPUT SWING DIFFERENTIAL RECEIVER FEATURES s 3.3V and 5V power supply options s High bandwidth output transitions s Internal 75K pull-down resistors on inputs s Functionally equivalent to SY100EL16V with variable output swing s Improved output waveform characteristics s Available in 8-pin SOIC and 8-pin (3mm) MSOP SY100EL16VS DESCRIPTION The SY100EL16VS are differential receivers with variable output swing. The devices are functionally equivalent to the EL16V devices with an input that control the amplitude of the outputs. The operational range of the EL16VS control input is from VBB (max. swing) to VCC (min. swing). Simple control of the output swing can be obtained by a variable resistor between the VBB pin and VCC with the wiper driving VCTRL. The EL16VS provides a VBB output for either singleended use or as a DC bias for AC coupling to the device. The VBB pin should be used only as a bias for the EL16VS as its current sink/source capability is limited. Whenever used, the VBB pin should be bypassed to ground via a 0.01F capacitor. Under open input conditions (pulled to VEE), internal input clamps will force the Q output LOW. PIN CONFIGURATION/BLOCK DIAGRAM VCTRL D D VBB 1 2 3 4 8 7 6 5 VCC Q Q VEE PIN NAMES Pin D Q VBB VCTRL Data Inputs Data Outputs Reference Voltage Output Output Swing Control Function TYPICAL VOLTAGE OUTPUT SWING 100 90 VOLTAGE SWING (%) +105C 80 70 60 50 40 30 20 10 0 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 VCC - VCTRL Figure 1. Typical Voltage Output Swing VCC = 3.3V or 5V Rev.: B Amendment: /1 +45C -40C 1 Issue Date: July 2000 Micrel SY100EL16VS DC ELECTRICAL CHARACTERISTICS(1) VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = -40C Symbol IEE VBB IIH VOL VOL VOH Parameter Power Supply Current Output Reference Voltage Input HIGH Current -D, D -VCTRL Min. -- -1.38 -- -- Typ. 18 -- -- -- -- -- -- Max. 22 -1.26 150 40 Min. 9 -1.38 -- -- TA = 0C Typ. 18 -- -- -- -- -- -- Max. 22 -1.26 150 40 9 -1.38 -- -- TA = +25C Min. Typ. 18 -- -- -- Max. 22 -1.26 150 40 9 -1.38 -- -- TA = +85C Min. Typ. 21 -- -- -- -- -- -- Max. Unit 26 -1.26 150 40 mA V A Output LOW Voltage(2) -1890 VCTRL = VBB Output LOW Voltage(2) -1180 VCTRL = VCC Output HIGH Voltage(3) -1085 -1620 -1870 -975 -880 -1135 -1025 -1680 -1870 -1775 -1680 -1870 -990 -880 -1135 -1065 -1025 -955 -990 -880 -1135 -1025 -1680 mV -990 -880 mV mV NOTES: 1. Parametric values specified at: 100EL16VS Series: -3.0V to -5.5V. 2. If VCTRL is an open circuit, use the VOH (max. & min.) and VOL (VCTRL = VBB: max only) limits. 3. VCC VCTRL VEE. AC ELECTRICAL CHARACTERISTICS(1) VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = -40C Symbol tPLH tPHL tskew VPP VCMR tr tf Parameter Propagation Delay to Output D (Diff) D (SE) Min. 175 125 -- 150 -1.3 -- Typ. -- 250 5 -- -- 160 Max. 325 425 -- -- -0.4 260 Min. 175 125 -- 150 -1.4 -- TA = 0C Typ. Max. -- 250 5 -- -- 160 325 375 20 -- -0.4 260 175 125 -- 150 -1.4 -- TA = +25C Min. Typ. -- 250 5 -- -- 160 Max. 325 375 20 -- -0.4 260 205 155 -- 150 -1.4 -- TA = +85C Min. Typ. -- 280 5 -- -- 160 Max. Unit 355 405 20 -- -0.4 260 ps ps mV V ps Duty Cycle Skew(2) (Diff) Minimum Input Common Mode Swing(3) Range(4) Output Rise/Fall Times Q (20% to 80%) NOTES: 1. Parametric values specified at: 100EL16VS Series: -3.0V to -5.5V. 2. Duty cycle skew is the difference between a tPLH and tPHL propagation delay through a device. 3. Minimum input swing for which AC parameters are guaranteed. The device has a DC gain of 40 when output has a full swing. 4. The CMR range is referenced to the most positive side of the differential input signal. Normal operation is obtained if the HIGH level falls within the specified range and the peak-to-peak voltage lies between VPP min. and 1V. The lower end of the CMR range varies 1:1 with VEE. The numbers in the spec table assume a nominal VEE = -3.3V. Note for PECL operation, the VCMR (min) will be fixed at 3.3V - |VCMR (min)|. PRODUCT ORDERING CODE Ordering Code SY100EL16VSKC SY100EL16VSZC Package Type K8-1 Z8-1 Operating Range Commercial Commercial VEE Range (V) -3.0 to -5.5 -3.0 to -5.5 2 Micrel SY100EL16VS APPLICATION IMPLEMENTATION VCTRL 1 VCTRL D D VBB 2 3 4 7 Q 6 Q 5 VEE 50 -2V VSWING (pk-pk) 8 VCC 50 Figure 2. Voltage Source Implementation +5.0V 1 VCTRL D D 2 3 4 VBB 8 VCC 7 Q 6 Q 5 VEE 470 VSWING (pk-pk) 470 Figure 3. Alternative Implementation 3 Micrel SY100EL16VS 8 LEAD MSOP (K8-1) 4 Micrel SY100EL16VS 8 LEAD SOIC .150" WIDE (Z8-1) Rev. 03 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA FAX + 1 (408) 980-9191 + 1 (408) 914-7878 WEB http://www.micrel.com This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc. (c) 2000 Micrel Incorporated 5 |
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