参数资料
| 型号： | SY89823LHI |
| 厂商： | Micrel Inc |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC CLK BUF MUX TRNSL 2:22 64TQFP |
| 标准包装： | 160 |
| 系列： | Precision Edge® |
| 类型： | 扇出缓冲器（分配），多路复用器，变换器 |
| 电路数： | 1 |
| 比率 - 输入:输出： | 2:22 |
| 差分 - 输入:输出： | 是/是 |
| 输入： | HSTL，LVPECL |
| 输出： | HSTL |
| 频率 - 最大： | 500MHz |
| 电源电压： | 3.15 V ~ 3.45 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-TQFP 裸露焊盘 |
| 供应商设备封装： | 64-EP-TQFP |
| 包装： | 托盘 |
1
Precision Edge
SY89823L
Micrel, Inc.
M9999-091908
hbwhelp@micrel.com or (408) 955-1690
FEATURES
s 22 differential HSTL (low-voltage swing) output pairs
s HSTL outputs drive 50
to ground with no offset
voltage
s 3.3V core supply, 1.8V output supply for reduced
power
s LVPECL and HSTL inputs
s Low part-to-part skew (200ps max.)
s Low pin-to-pin skew (50ps max.)
s Triple-buffered output enable (OE)
s –40
°C to +85°C temperature range
s Available in a 64-pin EPAD-TQFP
The SY89823L is a high-performance bus clock driver with 22
differential High-Speed Transceiver Logic (HSTL), 1.5V compatible
output pairs. The device is designed for use in low-voltage (3.3V/
1.8V) applications that require a large number of outputs to drive
precisely aligned, ultra-low skew signals to their destination. The
input is multiplexed from either HSTL or Low-Voltage Positive-
Emitter-Coupled Logic (LVPECL) by the CLK_SEL pin.
The Output Enable (OE) is synchronous and triple-buffered so
that the outputs will only be enabled/disabled when they are already
in the LOW state. This avoids any potential of generating a runt clock
pulse when the device is enabled/disabled, as can occur with an
asynchronous control. The triple-buffering feature provides a three-
clock delay from the time the OE input is asserted/de-asserted to
when the clock appears at the outputs.
The SY89823L features low pin-to-pin skew (50ps max.) and low
part-to-part skew (200ps max.), performance previously unachievable
in a standard product having such a high number of outputs. The
SY89823L is available in a single, space-saving package, enabling
a lower overall cost solution.
All support documentation can be found on Micrel’s web site at:
www.micrel.com.
3.3V, 500MHz 1:22
DIFFERENTIAL HSTL (1.5V)
FANOUT BUFFER/TRANSLATOR
DESCRIPTION
Precision Edge
SY89823L
LOGIC SYMBOL
CLK_SEL
HSTL_CLK
/HSTL_CLK
LVPECL_CLK
/LVPECL_CLK
OE
0
1
22
Q0 - Q21
/Q0 - /Q21
EN
ENABLE
LOGIC
Rev.: D
Amendment: /0
Issue Date:
September 2008
Precision Edge
Precision Edge is a registered trademark of Micrel, Inc.
OE(1)
CLK_SEL
Q0-Q21
/Q0-/Q21
0
LOW
HIGH
0
1
LOW
HIGH
1
0
HSTL_CLK
/HSTL_CLK
1
LVPECL_CLK
/LVPECL_CLK
Note:
1. The output enable (OE) signal is synchronized with the low level of the
HSTL_CLK and LVPECL_CLK signal.
TRUTH TABLE
APPLICATIONS
s High-performance PCs
s Workstations
s Parallel processor-based systems
s Other high-performance computing
s Communications
TYPICAL PERFORMANCE
0
100
200
300
400
500
600
700
800
900
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6
OUTPUT
AMPLITUDE
(mV)
OUTPUT FREQUENCY (GHz)
Output Amplitude
vs. Frequency
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SY89823LHI TR | 功能描述:IC CLK BUF MUX TRNSL 2:22 64TQFP RoHS:否 类别:集成电路 (IC) >> 时钟/计时 - 时钟缓冲器，驱动器 系列:Precision Edge® 标准包装:1 系列:HiPerClockS™ 类型:扇出缓冲器（分配），多路复用器 电路数:1 比率 - 输入:输出:2:18 差分 - 输入:输出:是/无 输入:CML，LVCMOS，LVPECL，LVTTL，SSTL 输出:LVCMOS，LVTTL 频率 - 最大:250MHz 电源电压:2.375 V ~ 3.465 V 工作温度:0°C ~ 70°C 安装类型:表面贴装 封装/外壳:32-LQFP 供应商设备封装:32-TQFP（7x7） 包装:- 其它名称:800-1923-6 |
| SY89823LHITR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.3V, 500MHz 1:22 DIFFERENTIAL HSTL (1.5V) FANOUT BUFFER/TRANSLATOR |
| SY89823LHY | 功能描述:时钟缓冲器 500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, Lead Free) RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| SY89823LHY TR | 功能描述:时钟缓冲器 500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, Lead Free) RoHS:否 制造商:Texas Instruments 输出端数量:5 最大输入频率:40 MHz 传播延迟（最大值）: 电源电压-最大:3.45 V 电源电压-最小:2.375 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LLP-24 封装:Reel |
| SY89823LHYTR | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:3.3V, 500MHz 1:22 DIFFERENTIAL HSTL (1.5V) FANOUT BUFFER/TRANSLATOR |
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