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| Micrel, Inc. TRIPLE PECL-TO-ECL TRANSLATOR SY100EL91 SY100EL91 FEATURES s 620ps typical propagation delay s Fully differential design s Supports standard operation s Available in 20-pin SOIC package DESCRIPTION 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 0.01F 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 VEE 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 0.01F 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. PIN NAMES Pin Dn Qn PECL_VBB PECL Inputs ECL Outputs PECL Reference Voltage Output Function M9999-031306 hbwhelp@micrel.com or (408) 955-1690 Rev.: E Amendment: /0 1 Issue Date: March 2006 Micrel, Inc. SY100EL91 PACKAGE/ORDERING INFORMATION Ordering Information(1) VCC 1 D0 2 D0 3 ECL 20 VCC 19 18 Part Number SY100EL91ZC SY100EL91ZCTR(2) SY100EL91ZI SY100EL91ZITR(2) SY100EL91ZG(3) Package Type Z20-1 Z20-1 Z20-1 Z20-1 Z20-1 Z20-1 Operating Range Commercial Commercial Industrial Industrial Industiral Industrial Package Marking SY100EL91ZC SY100EL91ZC SY100EL91ZI SY100EL91ZI Lead Finish Sn-Pb Sn-Pb Sn-Pb Sn-Pb ECL PECL Q0 Q0 GND Q1 Q1 GND Q2 PECL_VBB 4 D1 5 D1 6 PECL_VBB 7 PECL PECL 17 16 15 14 13 12 11 SY100EL91ZG with NiPdAu Pb-Free bar-line indicator Pb-Free SY100EL91ZG with NiPdAu Pb-Free bar-line indicator Pb-Free SY100EL91ZGTR(2, 3) Notes: ECL D2 8 D2 9 Q2 VCC VEE 10 1. Contact factory for die availability. Dice are guaranteed at TA = 25C, 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 = -40C Symbol VCC VIH VIL IIH IIL VBB ICC Parameter Power Supply Voltage Input HIGH Voltage(1) Input LOW Voltage(1) Input HIGH Current Input LOW Current Dn Dn Output Reference(1) Power Supply Current Min. 4.75 3.835 3.190 -- 0.5 -600 3.620 -- Typ. -- -- -- -- -- -- -- -- Max. 5.25 Min. 4.75 TA = 0C Typ. -- -- -- -- -- -- -- -- Max. 5.25 4.120 3.525 150 -- -- 3.740 11 TA = +25C Min. 4.75 3.835 3.190 -- 0.5 -600 3.620 -- Typ. Max. -- -- -- -- -- -- -- 6.0 5.25 4.120 3.525 150 -- -- 3.740 11 TA = +85C Min. 4.75 3.835 3.190 -- 0.5 -600 3.620 -- Typ. -- -- -- -- -- -- -- -- Max. 5.25 4.120 3.525 150 -- -- 3.740 11 Unit V V V A A 4.120 3.835 3.525 3.190 150 -- -- -- 0.5 -600 3.740 3.620 11 -- V mA Note: 1. These values are for VCC = 5V. Level specifications will vary 1:1 with VCC. ECL OUTPUT DC ELECTRICAL CHARACTERISTICS TA = -40C Symbol VEE VOH VOL IEE Parameter Power Supply Voltage Output HIGH Voltage Output LOW Voltage Power Supply Current Min. -4.2 -1085 -1830 -- Typ. -- -- -- -- Max. -5.5 Min. -4.2 TA = 0C Typ. -- -- -- -- Max. -5.5 TA = +25C Min. -4.2 Typ. -- Max. -5.5 -880 TA = +85C Min. -4.2 -1025 Typ. -- -- -- -- Max. -5.5 -880 -1620 30 Unit V mV mV mA -880 -1025 -1555 -1810 28 -- -880 -1025 -955 -1620 -1810 -1705 -1620 -1810 28 -- 22 28 -- M9999-031306 hbwhelp@micrel.com or (408) 955-1690 3 Micrel, Inc. SY100EL91 AC ELECTRICAL CHARACTERISTICS PECL: VCC = +4.75V to +5.25V, ECL: VEE = -4.2V to -5.5V TA = -40C Symbol tPD tskew Parameter Propagation Delay D to Q Diff. S.E. Min. 520 470 -- -- -- 200 1.3 1.5 320 Typ. 620 620 -- -- 25 -- -- -- 400 Max. 720 770 100 200 -- -- VCC-0.2 VCC-0.2 TA = 0C Min. 520 470 -- -- -- 200 1.2 1.4 320 Typ. 620 620 -- -- 25 -- -- -- 400 Max. 720 770 100 200 -- -- VCC-0.2 VCC-0.2 TA = +25C Min. 520 470 -- -- -- 200 1.2 1.4 320 Typ. 620 620 20 -- 25 -- -- -- 400 Max. 720 770 100 200 -- -- VCC-0.2 VCC-0.2 TA = +85C Min. 550 500 -- -- -- 200 1.2 1.4 320 Typ. 650 650 -- -- 25 -- -- -- 400 Max. Unit 750 800 100 200 -- -- VCC-0.2 VCC-0.2 ps Within-Device Skew(1) Output-to-Output Part-to-Part (Diff.) Duty Cycle (Diff.) Minimum Input Swing(2) Common Mode Range(3) VPP < 500mV VPP > 500mV Output Rise/Fall Times Q (20% to 80%) ps VPP VCMR mV V tr tf 580 580 580 580 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 USA + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB 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. (c) 2006 Micrel, Incorporated. M9999-031306 hbwhelp@micrel.com or (408) 955-1690 5 |
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