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| 型號： | SY89825UHY TR |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 1/9頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CLK BUF MUX TRNSL 2:22 64TQFP |
| 標準包裝： | 1,000 |
| 系列： | Precision Edge® |
| 類型： | 扇出緩沖器（分配），多路復(fù)用器，變換器 |
| 電路數(shù)： | 1 |
| 比率 - 輸入:輸出： | 2:22 |
| 差分 - 輸入:輸出： | 是/是 |
| 輸入： | LVDS，LVPECL |
| 輸出： | LVPECL |
| 頻率 - 最大： | 2GHz |
| 電源電壓： | 2.37 V ~ 3.6 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(yīng)商設(shè)備封裝： | 64-EP-TQFP |
| 包裝： | 帶卷 (TR) |
| 其它名稱： | SY89825UHYTR SY89825UHYTR-ND |
1
Precision Edge
SY89825U
Micrel, Inc.
M9999-011907
hbwhelp@micrel.com or (408) 955-1690
FEATURES
s LVPECL or LVDS input to 22 LVPECL outputs
s 100K ECL compatible outputs
s LVDS input includes 100
termination
s Guaranteed AC parameters over voltage:
> 2GHz fMAX (toggle)
< 35ps max. ch-ch skew
s Low voltage operation: 2.5V, 3.3V
s Temperature range: –40
°C to +85°C
s Output enable pin
s Available in a 64-Pin EPAD-TQFP
The SY89825U is a High Performance Bus Clock Driver
with 22 differential LVPECL output pairs. This part is
designed for use in low voltage (2.5V, 3.3V) applications
which require a large number of outputs to drive precisely
aligned, ultra low skew signals to their destination. The
input is multiplexed from either LVDS or LVPECL by the
CLK_SEL pin. The LVDS input includes a 100
internal
termination, thus eliminating the need for external
termination. The Output Enable (OE) is synchronous so
that the outputs will only be enabled/disabled when they
are already in the LOW state. This eliminates any chance
of generating a runt clock pulse when the device is enabled/
disabled as can happen with an asynchronous control.
The SY89825U features low pin-to-pin skew (35ps max.)
—performance previously unachievable in a standard
product having such a high number of outputs. The
SY89825U is available in a single space saving package
which provides a lower overall cost solution. In addition, a
single chip solution improves timing budgets by eliminating
the multiple device solution with their corresponding large
part-to-part skew.
2.5/3.3V 1:22 HIGH-PERFORMANCE,
LOW-VOLTAGE PECL BUS CLOCK DRIVER
& TRANSLATOR w/ INTERNAL TERMINATION
DESCRIPTION
Precision Edge
SY89825U
APPLICATIONS
s High-performance PCs
s Workstations
s Parallel processor-based systems
s Other high-performance computing
s Communications
Rev.: D
Amendment: /0
Issue Date:
January 2007
Precision Edge
Precision Edge is a registered trademark of Micrel, Inc.
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