SY100EL91LZG

3.3V TRIPLE LVPECL-to-ECL OR LVPECL-to-LVECL TRANSLATOR Micrel, Inc. DESCRIPTION FEATURES The SY100EL91L is a triple LVPECL-to-ECL or LVPECL-to-LVECL translator. 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 EL91L 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 EL91L 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. ■ 3.3V power supply ■ 620ps propagation delay ■ Fully differential design ■ Supports low voltage operation ■ Available in 20-pin SOIC package PIN NAMES FUNCTION TABLE Function SY100EL91L SY100EL91L Vcc VEE LVPECL-to-ECL 3.3V –5.0V Dn PECL Inputs LVPECL-to-LVECL 3.3V –3.3V Qn ECL Outputs PECL_VBB PECL Reference Voltage Output M9999-031306 hbwhelp@micrel.com or (408) 955-1690 Pin Function Rev.: H 1 1 Amendment: /0 Issue Date: December 2005 Micrel, Inc. SY100EL91L PACKAGE/ORDERING INFORMATION Ordering Information(1) ECL PECL VCC 1 20 VCC Part Number Package Type Operating Range Package Marking Lead Finish Q0 SY100EL91LZC Z20-1 Commercial SY100EL91LZC Sn-Pb D0 3 18 Q0 SY100EL91LZCTR(2) Z20-1 Commercial SY100EL91LZC Sn-Pb 17 GND SY100EL91LZI Z20-1 Industrial SY100EL91LZI Sn-Pb Q1 SY100EL91LZITR(2) Z20-1 Industrial SY100EL91LZI Sn-Pb SY100EL91LZG(3) Z20-1 Industrial SY100EL91LZG with Pb-Free bar-line indicator Pb-Free NiPdAu SY100EL91LZGTR(2, 3) Z20-1 Industrial SY100EL91LZG with Pb-Free bar-line indicator Pb-Free NiPdAu PECL_V BB 4 ECL 19 PECL D0 2 D1 5 16 Q1 7 14 GND 13 Q2 12 Q2 11 VCC PECL_V BB D2 8 D2 9 VEE 10 ECL 15 PECL D1 6 Notes: 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. SY100EL91L 3.3V LVPECL INPUT DC ELECTRICAL CHARACTERISTICS(1) TA = –40°C Symbol VCC TA = 0°C TA = +25°C TA = +85°C Parameter Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit Power Supply Voltage 3.8 3.0 — 3.8 3.0 3.3 3.8 3.0 — 3.8 V 3.0 — Input HIGH Voltage(2) 2.135 — 2.420 2.135 — 2.420 2.135 2.350 2.420 2.135 — 2.420 V VIL Input LOW Voltage(2) 1.490 — 1.825 1.490 — 1.825 1.490 — 1.825 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(2) 1.920 — 2.040 1.920 — 2.040 1.920 — 2.040 1.920 — 2.040 V ICC Power Supply Current — — — 10 mA VIH 10 — — 10 Notes: 1. Parametric values specified at: 3 volt Power Supply Range 100EL91L Series 2. These levels are for VCC = 3.3V. Level specifications will vary 1:1 with VCC. — — 1.825 1.490 6.0 10 — -3.0V to -3.8V. ECL/LVECL OUTPUT DC ELECTRICAL CHARACTERISTICS(1) 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 -4.2 -3.0 — — -5.5 -3.8 -4.2 -3.0 — — -5.5 -3.8 -4.2 -3.0 — — -5.5 -3.8 -4.2 -3.0 — — -5.5 -3.8 V -1025 -955 VEE Power Supply Voltage VOH Output HIGH Voltage -1085 — -880 -1025 — -880 -880 -1025 — -880 mV VOL Output LOW Voltage -1830 — -1555 -1810 — -1620 -1810 -1705 -1620 -1810 — -1620 mV IEE Power Supply Current — — — — 30 mA ECL LVECL Note: 1. Parametric values specified at: M9999-031306 hbwhelp@micrel.com or (408) 955-1690 28 3 volt Power Supply Range — — 28 100EL91L Series 3 — 22 -3.0V to -3.8V. 28 Micrel, Inc. SY100EL91L AC ELECTRICAL CHARACTERISTICS(4) LVPECL: VCC = +3.0V to +3.8V, ECL: VEE = -4.2V to -5.5V, LVECL: VEE = -3.0V to -3.8V TA = –40°C Symbol Parameter tPD Propagation Delay D to Q tskew Within-Device Skew(1) Output-to-Output Part-to-Part (Diff.) Duty Cycle (Diff.) VPP VCMR tr tf Diff. S.E. Minimum Input Swing(2) TA = 0°C TA = +25°C TA = +85°C Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit 490 440 590 590 690 740 510 460 610 610 710 760 520 470 620 620 720 770 560 510 660 660 760 810 ps — — — 40 — 25 100 200 — — — — 40 — 25 100 200 — — — — 40 — 25 100 200 — — — — 40 — 25 100 200 — ps 150 — — 150 — — 150 — — 150 — — mV 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 Range(3) Common Mode VPP < 500mV VPP > 500mV 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. 4. Parametric values specified at: M9999-031306 hbwhelp@micrel.com or (408) 955-1690 3 volt Power Supply Range 100EL91L Series 4 -3.0V to -3.8V. Micrel, Inc. SY100EL91L LVPECL-TO-ECL MODE CONFIGURATION VCC = +3.3V VCC = +3.3V VCC = 0V Q1 LVPECL_VBB 7 14 GND 13 Q2 D2 9 12 Q2 VEE 10 11 VCC ECL 0.1µF R4 83Ω R3 R2 R4 83Ω R3 R2 125Ω R1 R3 ECL D2 8 Unused VCC = +3.3V Input LVPECL VEE = 0V R2 15 R4 D1 6 Single Ended Mode 83Ω Q1 125Ω 16 D1 5 VEE = 0V LVPECL LVPECL DEVICE VCC = 0V R1 GND R3 17 LVPECL_VBB 4 R2 Q0 3 R4 18 D0 VCC = +3.3V 83Ω Q0 125Ω 19 D0 2 R1 VCC ECL 125Ω 20 VCC 1 LVPECL R1 VCC = +3.3V VEE = -3.3V ECL DEVICE VEE = -3.3V VEE = 0V VEE = -3.3V -3.3V 3.3V Configuration VCC = +3.3V VCC = +3.3V VCC = 0V Q1 LVPECL_VBB 7 14 GND 13 Q2 D2 9 12 Q2 VEE 10 11 VCC ECL 0.1µF R4 83Ω R3 R2 R4 83Ω R3 R2 125Ω R1 R3 ECL D2 8 Unused VCC = +3.3V Input LVPECL VEE = 0V R2 15 R4 D1 6 R1 Q1 Single Ended Mode 83Ω 16 D1 5 VEE = 0V LVPECL LVPECL DEVICE VCC = 0V R3 GND 125Ω 17 LVPECL_VBB 4 R2 Q0 3 R4 18 D0 VCC = +3.3V 83Ω Q0 125Ω 19 D0 2 R1 VCC ECL 125Ω 20 VCC 1 LVPECL R1 VCC = +3.3V VEE = -5V ECL DEVICE VEE = -5V VEE = 0V VEE = -5V -5V 5.0V Configuration Notes: 1. The schematic above demonstrates three different ways that all or any inputs of SY100EL91L can be used. The three modes or operation are: Differential LVPECL, Single-Ended LVPECL, and/or Open. 2. If D2 an D2 are used in differential mode, then the same scheme of D0 and D0 applies. If used in single-ended mode, then use the same scheme of D1 and D1. M9999-031306 hbwhelp@micrel.com or (408) 955-1690 5 Micrel, Inc. SY100EL91L 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 6