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參數(shù)資料
型號: SY89871UMG TR
廠商: Micrel Inc
文件頁數(shù): 5/11頁
文件大?。?/td> 0K
描述: IC CLOCK BUFF DIVIDER 1:3 16-MLF
標準包裝: 1,000
系列: Precision Edge®
類型: 扇出緩沖器(分配),除法器
電路數(shù): 1
比率 - 輸入:輸出: 1:3
差分 - 輸入:輸出: 是/是
輸入: CML,HSTL,LVDS,LVPECL
輸出: LVPECL
頻率 - 最大: 2.5GHz
電源電壓: 2.375 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-VFQFN 裸露焊盤,16-MLF?
供應商設備封裝: 16-MLF?(3x3)
包裝: 帶卷 (TR)
其它名稱: SY89871UMGTR
SY89871UMGTR-ND
Micrel, Inc.
SY89871U
Oct. 1, 2013
3
M9999-010512-F
hbwhelp@micrel.com or (408) 955-1690
Pin Configuration
Pin Description
Pin Number
Pin Name
Pin Function
1, 2, 3, 4
QB0, /QB0
QB1, /QB1
Differential Buffered Output Clocks: The differential output is a divided-down version of the
input frequency and has a matched output delay with Bank A. Divided by 2, 4, 8, or 16. See
“Truth Table.” Unused output pairs may be left floating.
5, 6
QA, /QA
Differential Buffered Undivided Output Clock.
7, 14
VCC
Positive Power Supply: Bypass with 0.1F and 0.01F low ESR capacitors.
8
/RESET
Output Reset: Internal 25K
Ω pull-up. Logic LOW will reset the divider select. See “Truth Table.”
Input threshold is VCC/2.
12, 9
IN, /IN
Differential Input: Internal 50
Ω termination resistors to VT input. See “Input Interface
Applications” section.
10
VREF-AC
Reference Voltage: Equal to VCC–1.4V (approx.), and used for AC-coupled applications. For
DC-coupled applications, VREF-AC is normally left floating. Maximum sink/source current is
0.5mA. See “Input Interface Applications” section.
11
VT
Input Termination Center-Tap: Each side of differential input pair terminates to this pin. The VT
pin provides a center tap to a termination network for maximum interface flexibility. For CML
and LVDS inputs, leave this pin floating. See “Input Interface Application” section.
13
GND
Ground.
15, 16
S1, S0
Select Pins: See “Truth Table.” LVTTL/CMOS logic levels. Internal 25KΩ pull-up resistor. Logic
HIGH if left unconnected (divided by 16 mode). S0 = LSB. Input threshold is VCC/2.
Truth Table
/RESET
S1
S0
Bank A Output
Bank B Outputs
1
0
Input Clock
2
1
0
1
Input Clock
4
1
0
Input Clock
8
1
Input Clock
16
0
X
Input Clock
QB = LOW, /QB = HIGH
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