SYNERGY SY100EL16S 5V VARIABLE OUTPUT SWING DIFFERENTIAL RECEIVER SY100EL16S SEMICONDUCTOR FEATURES DESCRIPTION ■ ■ ■ ■ 5V power supply options High bandwidth output transitions Internal 75KΩ pull-down resistors on inputs Functionally equivalent to SY10/100EL16V with variable output swing ■ Improved output waveform characteristics ■ ESD protection of 2000V ■ Available in 8-pin (3mm) TSSOP The SY100EL16S is a differential receiver with variable output swing. This device is functionally equivalent to the EL16V, with an additional input that control the output amplitude. The operating range of the EL16S control input is from VBB (max. swing) to VCC (min. swing). Control of the output swing can be obtained by a variable resistor between the VBB pin and VCC with the wiper driving VCTRL. The EL16S 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 EL16S as its current sink/source capability is limited. Whenever used, the VBB pin should be bypassed to VCC 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 9 VCC D 2 7 Q D 3 6 Q VBB 4 5 PIN NAMES Pin VEE TOP VIEW Function D, D Data Inputs Q, 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 = 5V © 1999 Micrel-Synergy Rev.: B 1 Amendment: /0 Issue Date: November 1999 SYNERGY SY100EL16S SEMICONDUCTOR DC ELECTRICAL CHARACTERISTICS(1) VEE = VEE (Min.) to VEE (Max.); VCC = GND TA = –40°C Symbol Parameter IEE Power Supply Current VBB Output Reference Voltage IIH Input HIGH Current –D, D –VCTRL NOTE: 1. Parametric values specified at: TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. — — 22 — — 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 100EL16S Series: Max. Unit –4.5V to –5.5V. 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 — 250 325 375 205 125 — 280 355 405 ps — 5 — — 5 20 — 5 20 — 5 20 ps Minimum Input Swing(3) 150 — — 150 — — 150 — — 150 — — mV Common Mode Range(4) -1.3 — -0.4 -1.4 — -0.4 -1.4 — -0.4 -1.4 — -0.4 V -1890 — -1620 -1870 — -1680 -1870 -1775 -1680 -1870 — -1680 mV VOL Output LOW Voltage(5) -1180 VCTRL = VCC — -975 -1135 — -990 -1135 -1065 -990 -1135 — -990 mV VOH Output HIGH Voltage(6) -1085 — -880 -1025 — -880 -1025 -955 -880 -1025 — -880 mV tr tf Output Rise/Fall Times Q (20% to 80%) — — 350 — — 350 — — 350 — — 350 ps VPP VCMR VOL Output LOW Voltage(5) VCTRL = VBB NOTES: 1. Parametric values specified at: 100EL16S Series: –4.5V 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)|. 5. If VCTRL is Open Circuit, use the VOH (max. & min.) and VOL (VCTRL = VBB: max only) limits. 6. VCC ≥ VCTRL ≥ VEE PRODUCT ORDERING CODE Ordering Code 2 Package Type Operating Range VEE Range (V) SY100EL16SKC K8-1 Commercial –4.5 to –5.5 SY100EL16SZC Z8-1 Commercial –4.5 to –5.5 SYNERGY SY100EL16S SEMICONDUCTOR 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 5 4 VBB VEE Figure 3. Alternative Implementation 3 470Ω 470Ω SYNERGY SY100EL16S SEMICONDUCTOR 8 LEAD TSSOP (K8-1) 4 SYNERGY SY100EL16S SEMICONDUCTOR 8 LEAD PLASTIC SOIC (Z8-1) 5