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參數(shù)資料
| 型號： | SY89823LHHTR |
| 廠商： | MICREL INC |
| 元件分類： | 時鐘及定時 |
| 英文描述： | 89823 SERIES, LOW SKEW CLOCK DRIVER, 22 TRUE OUTPUT(S), 0 INVERTED OUTPUT(S), PQFP64 |
| 封裝： | LEAD FREE, EPAD, TQFP-64 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 119K |
| 代理商： | SY89823LHHTR |
1
Precision Edge
SY89823L
Micrel, Inc.
M9999-101905
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.: B
Amendment: /0
Issue Date:
October 2005
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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY89823LHI | 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 |
| SY89823LHI TR | 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 |
| SY89823LHITR | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V, 500MHz 1:22 DIFFERENTIAL HSTL (1.5V) FANOUT BUFFER/TRANSLATOR |
| SY89823LHY | 功能描述:時鐘緩沖器 500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, Lead Free) RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
| SY89823LHY TR | 功能描述:時鐘緩沖器 500MHz 1:22 Diff. HSTL Fanout Buffer (I Temp, Lead Free) RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:5 最大輸入頻率:40 MHz 傳播延遲（最大值）: 電源電壓-最大:3.45 V 電源電壓-最小:2.375 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:LLP-24 封裝:Reel |
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