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參數(shù)資料
| 型號： | SY89825U |
| 廠商： | Micrel Semiconductor,Inc. |
| 英文描述： | 2.5/3.3V 1:22 HIGH-PERFORMANCE, LOW-VOLTAGE PECL BUS CLOCK DRIVER & TRANSLATOR w/ INTERNAL TERMINATION |
| 中文描述： | 2.5/3.3V 1時22高性能，低電壓PECL總線時鐘驅(qū)動器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 59K |
| 代理商： | SY89825U |
FEATURES
I
LVPECL or LVDS input to 22 LVPECL outputs
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100K ECL compatible outputs
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LVDS input includes 100
termination
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Guaranteed AC parameters over voltage:
> 2GHz f
MAX
(toggle)
< 35ps max. ch-ch skew
I
Low voltage operation: 2.5V, 3.3V
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Temperature range: –40
°
C to +85
°
C
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Output enable pin
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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.
PIN CONFIGURATION
2.5/3.3V 1:22 HIGH-PERFORMANCE,
LOW-VOLTAGE PECL BUS CLOCK DRIVER
& TRANSLATOR w/ INTERNAL TERMINATION
DESCRIPTION
ClockWorks
SY89825U
FINAL
APPLICATIONS
I
High-performance PCs
I
Workstations
I
Parallel processor-based systems
I
Other high-performance computing
I
Communications
1
Rev.: A
Issue Date:
Amendment: /0
September 2001
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Q
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Q
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Q
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Q
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Q
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Q
Q
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VCCO
NC
NC
VCCI
LVDS_CLK
/LVDS_CLK
CLK_SEL
LVPECL_CLK
/LVPECL_CLK
GND
OE
NC
NC
/Q21
Q21
VCCO
VCCO
Q7
/Q7
Q8
/Q8
Q9
/Q9
Q10
/Q10
Q11
/Q11
Q12
/Q12
Q13
/Q13
VCCO
64
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
64-Pin
EPAD-TQFP
(Top View)
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Q
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相關(guān)PDF資料 |
PDF描述 |
|---|---|
| sy89833l | 3.3V, 2GHz ANY-DIFFERENTIAL INPUT-TO-LVDS 1:4 FANOUT BUFFER/TRANSLATOR W/ INTERNAL TERMINATION |
| SY89834U | 2.5V/3.3V TWO INPUT , 1GHz LVTTL/CMOS-TO-LVPECL 1:4 FANOUT BUFFER/TRANSLATOR |
| SY89834UMI | 2.5V/3.3V TWO INPUT , 1GHz LVTTL/CMOS-TO-LVPECL 1:4 FANOUT BUFFER/TRANSLATOR |
| SY89834UMITR | 2.5V/3.3V TWO INPUT , 1GHz LVTTL/CMOS-TO-LVPECL 1:4 FANOUT BUFFER/TRANSLATOR |
| SY89840U | Precision LVPECL Runt Pulse Eliminator 2:1 Multiplexer |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY89825U_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2.5/3.3V 1:22 HIGH-PERFORMANCE, LOW-VOLTAGE PECL BUS CLOCK DRIVER & TRANSLATOR w/ INTERNAL TERMINATION |
| SY89825UHG | 功能描述:IC CLK BUF MUX TRNSL 2:22 64TQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| SY89825UHG TR | 功能描述:IC CLK BUF MUX TRNSL 2:22 64TQFP RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| SY89825UHI | 功能描述:IC CLK BUF MUX TRNSL 2:22 64TQFP RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘緩沖器，驅(qū)動器 系列:Precision Edge® 標(biāo)準(zhǔn)包裝:1 系列:HiPerClockS™ 類型:扇出緩沖器（分配），多路復(fù)用器 電路數(shù):1 比率 - 輸入:輸出:2:18 差分 - 輸入:輸出:是/無 輸入:CML，LVCMOS，LVPECL，LVTTL，SSTL 輸出:LVCMOS，LVTTL 頻率 - 最大:250MHz 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:32-LQFP 供應(yīng)商設(shè)備封裝:32-TQFP（7x7） 包裝:- 其它名稱:800-1923-6 |
| SY89825UHITR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:2.5/3.3V 1:22 HIGH-PERFORMANCE, LOW-VOLTAGE PECL BUS CLOCK DRIVER & TRANSLATOR w/ INTERNAL TERMINATION |
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