5V/3.3V VARIABLE OUTPUT SWING DIFFERENTIAL RECEIVER FEATURES SY100EL16VS DESCRIPTION ■ 3.3V and 5V power supply options ■ High bandwidth output transitions ■ Internal 75KΩ pull-down resistors on inputs ■ Functionally equivalent to SY100EL16V with variable output swing ■ Improved output waveform characteristics ■ Available in 8-pin SOIC and 8-pin (3mm) MSOP 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 0.01µF capacitor. Under open input conditions (pulled to VEE), internal input clamps will force the Q output LOW. PIN CONFIGURATION/BLOCK DIAGRAM VCTRL 1 8 VCC D 2 7 Q D 3 6 Q VBB 4 5 VEE PIN NAMES Pin Function D Data Inputs Q Data Outputs VBB Reference Voltage Output VCTRL Output Swing Control TYPICAL VOLTAGE OUTPUT SWING 100 +105°C VOLTAGE SWING (%) 90 80 70 60 +45°C 50 40 30 20 -40°C 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 1 Amendment: /1 Issue Date: July 2000 SY100EL16VS Micrel DC ELECTRICAL CHARACTERISTICS(1) VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = –40°C Symbol Parameter TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit — 18 22 9 18 22 9 18 22 9 21 26 mA -1.38 — -1.26 -1.38 — -1.26 -1.38 — -1.26 -1.38 — -1.26 V — — — — 150 40 — — — — 150 40 — — — — 150 40 — — — — 150 40 µA IEE Power Supply Current VBB Output Reference Voltage IIH Input HIGH Current VOL Output LOW Voltage(2) -1890 VCTRL = VBB — -1620 -1870 — -1680 -1870 -1775 -1680 -1870 — -1680 mV VOL Output LOW Voltage(2) -1180 VCTRL = VCC — -975 -1135 — -990 -1135 -1065 -990 -1135 — -990 mV VOH Output HIGH Voltage(3) — -880 -1025 — -880 -1025 -880 -1025 — -880 mV -D, D -VCTRL -1085 -955 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 = –40°C Symbol Parameter tPLH tPHL Propagation Delay to Output D (Diff) D (SE) tskew Duty Cycle Skew(2) (Diff) TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit 175 125 — 250 325 425 175 125 — 250 325 375 175 125 — 250 325 375 205 155 — 280 355 405 ps — 5 — — 5 20 — 5 20 — 5 20 ps Minimum Input Swing(3) 150 — — 150 — — 150 — — 150 — — mV VCMR Common Mode Range(4) -1.3 — -0.4 -1.4 — -0.4 -1.4 — -0.4 -1.4 — -0.4 V tr tf Output Rise/Fall Times Q (20% to 80%) — 160 260 — 160 260 — 160 260 — 160 260 ps VPP 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 2 Ordering Code Package Type Operating Range VEE Range (V) SY100EL16VSKC K8-1 Commercial -3.0 to -5.5 SY100EL16VSZC Z8-1 Commercial -3.0 to -5.5 SY100EL16VS Micrel APPLICATION IMPLEMENTATION VCTRL 1 8 2 7 VCTRL D VCC Q D (pk-pk) 6 3 Q VBB VSWING 5 4 VEE 50Ω 50Ω –2V Figure 2. Voltage Source Implementation +5.0V 8 1 VCTRL VCC D 2 D 3 7 Q VSWING (pk-pk) 6 Q 470Ω 5 4 VBB VEE Figure 3. Alternative Implementation 3 470Ω SY100EL16VS Micrel 8 LEAD MSOP (K8-1) 4 SY100EL16VS Micrel 8 LEAD SOIC .150" WIDE (Z8-1) Rev. 03 MICREL-SYNERGY TEL 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA + 1 (408) 980-9191 FAX + 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. © 2000 Micrel Incorporated 5