SY100EL91ZC-TR

NOT RECOMMENDED FOR NEW DESIGNS Micrel, Inc. TRIPLE PECL-TO-ECL TRANSLATOR SY100EL91 SY100EL91 DESCRIPTION FEATURES ■ 620ps typical propagation delay The SY100EL91 is a triple PECL-to-ECL translator. It receives standard voltage PECL signals and translates them to different ECL output signals. A VBB output is provided for interfacing with single ended PECL signals at the input. If a single ended input is to be used, the VBB output should be connected to the D input. The active signal would then drive the D input. When used, the VBB output should be bypassed to ground via a 0.01µF capacitor. The VBB output is designed to act as the switching reference for the EL91 under single ended input switching conditions. As a result this pin can only source/sink up to 0.5mA of current. To accomplish the level translation the EL91 requires three power rails. The VCC supply should be connected to the positive supply, and the V EE pin should be connected to the negative power supply. The GND pins as expected are connected to the system ground plane. Both VEE and VCC should be bypassed to ground via 0.01µF capacitors. Under open input conditions, the D input will be biased at VCC/2 and the D input will be pulled to GND. This condition will force the Q output to a LOW, ensuring stability. ■ Fully differential design ■ Supports standard operation ■ Available in 20-pin SOIC package PIN NAMES Pin M9999-031306 hbwhelp@micrel.com or (408) 955-1690 Function Dn PECL Inputs Qn ECL Outputs PECL_VBB PECL Reference Voltage Output Rev.: E 1 Amendment: /0 Issue Date: March 2006 Micrel, Inc. SY100EL91 PACKAGE/ORDERING INFORMATION Ordering Information(1) D0 2 19 D0 3 ECL PECL PECL_V BB 4 20 VCC ECL PECL VCC 1 Operating Range Package Marking Lead Finish SY100EL91ZC Z20-1 Commercial SY100EL91ZC Sn-Pb 18 Q0 SY100EL91ZCTR(2) Z20-1 Commercial SY100EL91ZC Sn-Pb 17 GND SY100EL91ZI Z20-1 Industrial SY100EL91ZI Sn-Pb SY100EL91ZITR(2) Z20-1 Industrial SY100EL91ZI Sn-Pb SY100EL91ZG(3) Z20-1 Industiral SY100EL91ZG with NiPdAu Pb-Free bar-line indicator Pb-Free SY100EL91ZGTR(2, 3) Z20-1 Industrial SY100EL91ZG with NiPdAu Pb-Free bar-line indicator Pb-Free 15 Q1 7 14 GND 13 Q2 12 Q2 11 VCC ECL D1 6 PECL 16 D2 8 Package Type Q0 D1 5 PECL_V BB Part Number Q1 Notes: D2 9 VEE 10 1. Contact factory for die availability. Dice are guaranteed at TA = 25°C, DC Electricals only. 2. Tape and Reel. 3. Pb-Free package is recommended for new designs. 20-Pin Wide SOIC (Z20-1) M9999-031306 hbwhelp@micrel.com or (408) 955-1690 2 Micrel, Inc. SY100EL91 PECL INPUT DC ELECTRICAL CHARACTERISTICS TA = –40°C Symbol TA = 0°C TA = +25°C Parameter Min. Typ. Max. Min. Typ. Max. Min. Min. Typ. Max. Unit VCC Power Supply Voltage 4.75 — 5.25 4.75 — 5.25 4.75 — 5.25 4.75 — 5.25 V VIH Input HIGH Voltage(1) 3.835 — 4.120 3.835 — 4.120 3.835 — 4.120 3.835 — 4.120 V VIL Input LOW Voltage(1) 3.190 — 3.525 3.190 — 3.525 3.190 — 3.525 3.190 — 3.525 V IIH Input HIGH Current — — 150 — — 150 — — 150 — — 150 µA IIL Input LOW Current Dn Dn 0.5 –600 — — — — 0.5 –600 — — — — 0.5 –600 — — — — 0.5 –600 — — — — µA VBB Output Reference(1) 3.620 — 3.740 3.620 — 3.740 3.620 — 3.740 3.620 — 3.740 V ICC Power Supply Current — — — 11 — 6.0 11 — — 11 mA 11 — Typ. Max. TA = +85°C Note: 1. These values are for VCC = 5V. Level specifications will vary 1:1 with VCC. ECL OUTPUT DC ELECTRICAL CHARACTERISTICS TA = –40°C Symbol TA = 0°C TA = +25°C TA = +85°C Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit VEE Power Supply Voltage –4.2 — –5.5 –4.2 — –5.5 –4.2 — –5.5 –4.2 — –5.5 V VOH Output HIGH Voltage –1085 — –880 –1025 — –880 –1025 –955 –880 –1025 — –880 mV VOL Output LOW Voltage –1830 — –1555 –1810 — –1620 –1810 –1705 –1620 –1810 — –1620 mV IEE Power Supply Current — — — 30 mA M9999-031306 hbwhelp@micrel.com or (408) 955-1690 28 — — 3 28 — 22 28 — Micrel, Inc. SY100EL91 AC ELECTRICAL CHARACTERISTICS PECL: VCC = +4.75V to +5.25V, ECL: VEE = -4.2V to -5.5V TA = –40°C Symbol Parameter tPD Propagation Delay D to Q Diff. S.E. tskew Within-Device Skew(1) Output-to-Output Part-to-Part (Diff.) Duty Cycle (Diff.) TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit 520 470 620 620 720 770 520 470 620 620 720 770 520 470 620 620 720 770 550 500 650 650 750 800 ps — — — — — 25 100 200 — — — — — — 25 100 200 — — — — 20 — 25 100 200 — — — — — — 25 100 200 — ps mV VPP Minimum Input Swing(2) 200 — — 200 — — 200 — — 200 — — VCMR Common Mode Range(3) VPP < 500mV VPP > 500mV 1.3 1.5 — — VCC–0.2 — — VCC–0.2 — — VCC–0.2 1.2 1.4 — — VCC–0.2 VCC–0.2 1.2 1.4 VCC–0.2 VCC–0.2 1.2 1.4 320 400 580 320 400 580 320 400 580 320 400 580 tr tf Output Rise/Fall Times Q (20% to 80%) V VCC–0.2 ps Notes: 1. Skew is measured between outputs under identical transitions. 2. Minimum input swing for which AC parameters are guaranteed. The device has a DC gain of ~40. 3. 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. M9999-031306 hbwhelp@micrel.com or (408) 955-1690 4 Micrel, Inc. SY100EL91 20-PIN SOIC .300" WIDE (Z20-1) Rev. 03 MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB USA http://www.micrel.com The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use. Micrel reserves the right to change circuitry and specifications at any time without notification to the customer. Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify Micrel for any damages resulting from such use or sale. © 2006 Micrel, Incorporated. M9999-031306 hbwhelp@micrel.com or (408) 955-1690 5