參數(shù)資料
型號(hào)： SY89825UHI
廠商： MICREL INC
元件分類： 時(shí)鐘及定時(shí)
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： 89825 SERIES, LOW SKEW CLOCK DRIVER, 22 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP64
封裝： TQFP-64
文件頁數(shù)： 1/8頁
文件大小： 59K
代理商： SY89825UHI
FEATURES
I
LVPECL or LVDS input to 22 LVPECL outputs
I
100K ECL compatible outputs
I
LVDS input includes 100
termination
I
Guaranteed AC parameters over voltage:
> 2GHz f
MAX
(toggle)
< 35ps max. ch-ch skew
I
Low voltage operation: 2.5V, 3.3V
I
Temperature range: –40
°
C to +85
°
C
I
Output enable pin
I
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
/
V
Q
/
Q
/
Q
/
Q
/
Q
/
Q
Q
/
V
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)
/
V
Q
/
Q
/
Q
/
Q
/
Q
/
Q
Q
/
V
相關(guān)PDF資料
PDF描述
SY89825U 2.5/3.3V 1:22 HIGH-PERFORMANCE, LOW-VOLTAGE PECL BUS CLOCK DRIVER & TRANSLATOR w/ INTERNAL TERMINATION
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
SY89825UHY 功能描述:轉(zhuǎn)換 - 電壓電平 3.3V 1:22 LVDS Fanout/Translator (I Temp, Lead Free) RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SY89825UHY TR 功能描述:轉(zhuǎn)換 - 電壓電平 3.3V 1:22 LVDS Fanout/Translator (I Temp, Lead Free) RoHS:否 制造商:Micrel 類型:CML/LVDS/LVPECL to LVCMOS/LVTTL 傳播延遲時(shí)間:1.9 ns 電源電流:14 mA 電源電壓-最大:3.6 V 電源電壓-最小:3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:MLF-8
SY89825UHYTR 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
SY898265UHI 制造商:Micrel Inc 功能描述:
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