參數資料
| 型號： | SY89468UHY |
| 廠商： | Micrel Inc |
| 文件頁數： | 1/6頁 |
| 文件大小： | 0K |
| 描述： | IC CLOCK BUFFER MUX 2:20 64-TQFP |
| 標準包裝： | 160 |
| 系列： | Precision Edge® |
| 類型： | 扇出緩沖器（分配），多路復用器 |
| 電路數： | 1 |
| 比率 - 輸入:輸出： | 2:20 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | CML，LVDS，PECL |
| 輸出： | LVDS |
| 頻率 - 最大： | 1.5GHz |
| 電源電壓： | 2.375 V ~ 2.625 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 64-TQFP 裸露焊盤 |
| 供應商設備封裝： | 64-EP-TQFP |
| 包裝： | 托盤 |
| 產品目錄頁面： | 1083 (CN2011-ZH PDF) |
| 其它名稱： | 576-2086 SY89468UHY-ND |
SY89468U
Precision LVDS 1:20 Fanout with 2:1 MUX
and Internal Termination with Fail-Safe Input
Precision Edge is a registered trademark of Micrel, Inc.
MicroLeadFrame and MLF are registered trademarks of Amkor Technology, Inc.
Micrel Inc. 2180 Fortune Drive San Jose, CA 95131 USA tel +1 (408) 944-0800 fax + 1 (408) 474-1000 http://www.micrel.com
November 2008
M9999-110308-D
hbwhelp@micrel.com or (408) 955-1690
General Description
The SY89468U is a 2.5V, 1:20 LVDS fanout buffer
with a 2:1 differential input multiplexer (MUX). A
unique Fail-Safe Input (FSI) protection prevents
metastable output conditions when the selected
input clock fails to a DC voltage (voltage between
the pins of the differential input drops significantly
below 100mV).
The differential input includes Micrel’s unique, 3-pin
internal termination architecture that can interface to
any differential signal (AC- or DC-coupled) as small
as 100mV (200mVPP) without any level shifting or
termination resistor networks in the signal path. The
outputs are LVDS compatible with very fast rise/fall
times guaranteed to be less than 270ps.
The SY89468U operates from a 2.5V ±5% supply
and is guaranteed over the full industrial
temperature range of –40°C to +85°C. The
SY89468U is part of Micrel’s high-speed, Precision
Edge
product line.
All support documentation can be found on Micrel’s
web site at: www.micrel.com.
Functional Block Diagram
Precision Edge
Features
∑ Selects between two inputs, and provides 20
precision LVDS copies
∑ Fail-Safe Input
– Prevents outputs from oscillating when input is
invalid
∑ Guaranteed AC performance over temperature and
supply voltage:
– DC to >1.5GHz throughput
– < 1200ps Propagation Delay (In-to-Q)
– < 270ps Rise/Fall times
∑ Ultra-low jitter design:
– <1psRMS random jitter
– <1psRMS cycle-to-cycle jitter
– <10psPP total jitter (clock)
– <0.7psRMS MUX crosstalk induced jitter
∑ Unique, patented MUX input isolation design
minimizes adjacent channel crosstalk
∑ Unique, patented internal termination and VT pin
accepts DC- and AC-coupled inputs (CML, PECL,
LVDS)
∑ Wide input voltage range VCC to GND
∑ 2.5V ±5% supply voltage
∑ -40°C to +85°C industrial temperature range
∑ Available in 64-pin EPAD-TQFP package
Applications
∑ Fail-safe clock protection
∑ Ultra-low jitter LVDS clock or data distribution
∑ Rack-based Telecom/Datacom
Markets
∑ LAN/WAN
∑ Enterprise servers
∑ ATE
∑ Test and measurement
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SY89468UHY TR | 功能描述:編碼器、解碼器、復用器和解復用器 1:20 LVDS Fanout w/ 2:1 FSI Input MUX RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| SY89468UHYTR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVDS 1:20 Fanout with 2:1 MUX and Internal Termination with Fail-Safe Input |
| SY89473U | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL 2:1 Multiplexer with 1:2 |
| SY89473U_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL 2:1 Multiplexer with 1:2 Fanout and Internal Termination |
| SY89473U_10 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Precision LVPECL 2:1 Multiplexer with 1:2 |
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