sy89828l Micrel Semiconductor, sy89828l Datasheet
sy89828l
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sy89828l Summary of contents
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... LVDS_CLKA /LVDS_CLKA Backup Clock Source LVDS_CLKB /LVDS_CLKB System using SY89828L as a switchover circuit from a Primary Clock to a Redundant backup Clock in a fail-safe application. LVPECL inputs not shown in this application. Precision Edge is a registered trademark of Micrel, Inc. M9999-012208 hbwhelp@micrel.com or (408) 955-1690 3.3V 1GHz DUAL 1:10 PRECISION ...
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... CLK_SEL2 SEL2 OE2 2 Precision Edge (1) Operating Package Range Marking Industrial SY89828LHI Industrial SY89828LHI Industrial SY89828LHY with Pb-Free bar-line indicator Matte-Sn Industrial SY89828LHY with Pb-Free bar-line indicator Matte-Sn = 25°C, DC electricals only – /Q0 – /Q9 LEN Q10 – Q19 10 /Q10 – /Q19 ...
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... Output LVDS Differential outputs from CLKA when SEL2 = LOW and from CLKB when SEL2 = HIGH. Q outputs are static LOW when OE2 = LOW. Unused output pairs must be externally terminated with 100Ω to maintain low jitter and skew. 3 Precision Edge ® SY89828L ...
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... Output LVDS Differential outputs (complement) from CLKA when SEL2 = LOW and from CLKB when SEL2 = HIGH. /Q outputs are static HIGH when OE2 = LOW. Unused output pairs must be externally terminated with 100Ω to maintain low jitter and skew. 4 Precision Edge ® SY89828L ...
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... LVPECL_CLKB /LVPECL_CLKB LVDS_CLKB /LVDS_CLKB /LVDS_CLKB LVDS_CLKA /LVDS_CLKA LVDS_CLKA /LVDS_CLKA /LVDS_CLKB LVPECL_CLKA /LVPECL_CLKA /LVDS_CLKB LVDS_CLKB /LVDS_CLKB HIGH LVDS_CLKA /LVDS_CLKA HIGH LVPECL_CLKA /LVPECL_CLKA HIGH LVDS_CLKB /LVDS_CLKB HIGH LVPECL_CLKB /LVPECL_CLKB /LVDS_CLKA LOW LOW /LVDS_CLKB LOW LOW HIGH LOW ® SY89828L HIGH HIGH HIGH HIGH HIGH ...
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... Note 4 Max Load, Max Condition 6 Precision Edge (Note 2) ) ......................... –40°C to +85° ......................................................... 4.4°C/W JC Min Typ 3.0 3.3 45 160 Min Typ 0 100 –1.25 80 100 and V are not internally CCI CCO ® SY89828L Max Units 3 260 mA Max Units 2 120 Ω ...
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... GNDI + 1.8V. CCI CMR = –40°C to +85°C A Condition 0. –40°C to +85°C Condition Note 7, 8 Note 7 Note 7 Note 8 7 Precision Edge SY89828L Min Typ Max Units V –1.165 V –0.880 –1.945 V –1.625 300 mV GNDI +1 ...
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... LVDS Input: 100mV LVDS Input: 400mV CLK_SEL to Valid Output Note 4 Note 4 Note 5 0°C to +85°C –40°C Note 6 Note 7 Note 8 12 output edges will deviate by more than the specified peak- 8 Precision Edge ® SY89828L Min Typ Max Units 1.0 GHz 0.950 1.15 1.45 ns 0.80 1.0 1.3 ns 1.10 1 ...
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... LVDS IN = 250mV 1600 LVDS INPUT 1400 1200 1000 800 LVPECL INPUT 600 400 200 0 -50 - 100 TEMPERATURE (°C) CLK_SEL Switchover Time vs. Temperature 1800 1600 1400 1200 1000 800 600 400 200 0 -50 - 100 TEMPERATURE (°C) ® SY89828L ...
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... Micrel, Inc. FUNCTIONAL CHARACTERISTICS 155MHz Output T = 25° 3.3V CC TIME (500ps/div.) M9999-012208 hbwhelp@micrel.com or (408) 955-1690 T = 25° 3.3V CC 1GHz Output T = 25° 3.3V CC TIME (100ps/div.) 10 Precision Edge ® SY89828L 622MHz Output TIME (200ps/div.) ...
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... V CC 1.9k 1.9k 1.4k 1.4k LVDS_CLK 100Ω /LVDS_CLK GND Figure 2. Simplified LVDS Input Stage 50Ω, ±1% 50Ω, ±1% GND Figure 4. LVDS Common Mode Measurement Q OUT 750mV Q OUT OUT Figure 6. Output Driver Signal Levels (Differential) Precision Edge ® SY89828L v , OCM ∆v OCM – /Q OUT ...
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... Micrel, Inc. DETAILED DESCRIPTION The SY89828L is a precision dual 1:10 fanout buffer. It allows either LVPECL or LVDS inputs, selectable by an input muxes, and outputs 2 sets of 10 LVDS output pairs. The device features 2 synchronous output enables. The SY89828L provides extremely low skew across its outputs. ...
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... Exposed pad must be soldered to a ground for proper thermal management (408) 944-0970 FAX Micrel for any damages resulting from such use or sale. © 2002 Micrel, Incorporated. 13 +0.15 –0.15 +0.006 –0.006 Package EP- Exposed Pad Die http://www.micrel.com WEB Precision Edge ® SY89828L Rev. 02 ...