參數(shù)資料
型號(hào): ICS548G-05T
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 2/7頁
文件大?。?/td> 0K
描述: IC CLOCK MULT T1/E1 16-TSSOP
產(chǎn)品變化通告: Product Discontinuation 13/May/2009
標(biāo)準(zhǔn)包裝: 2,500
類型: 時(shí)鐘/頻率合成器,扇出緩沖器(分配)
PLL: 帶旁路
輸入: 時(shí)鐘,晶體
輸出: CMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:12
差分 - 輸入:輸出: 無/無
頻率 - 最大: 49.152MHz
除法器/乘法器: 無/是
電源電壓: 3.15 V ~ 5.5 V
工作溫度: 0°C ~ 70°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 帶卷 (TR)
其它名稱: 548G-05T
ICS548-05
T1/E1 CLOCK MULTIPLIER
CLOCK SYNTHESIZER
IDT T1/E1 CLOCK MULTIPLIER
2
ICS548-05
REV D 091511
Pin Assignment
Output Clock Selection Table
Power Down Clock Selection Table
Key: 0 = connect directly to GND; 1 = connect directly to
VDD
Pin Descriptions
Key: XI, XO = crystal connections; the in put pin MSEL must be tied directly to VDD or GND.
For a clock input, connect the input X1 and leave X2 unconnected (floating).
12
1
11
2
10
X1/ICLK
X2
3
9
VDD
4
VDD
DC
5
REFEN
6
REFOUT
7
GND
8
GND
MSEL
GND
PDCLK
GND
DC
VDD
CLK
16
15
14
13
16-pin TSSOP
MSEL
Input (MHz)
CLK (MHz)
Pin 13
PIns 1, (16)
PIn 9
0
1.544
24.704
1
1.544
37.056
0
2.048
32.768
1
2.048
49.152
REFEN PDCLK
Power Down Selection Mode
Pin 4
PIn 11
0
The entire chip is off.
0
1
PLL and clock output run, REFOUT low.
1
0
REFOUT running, PLL off, CLK low.
1
All running.
Pin
Number
Pin
Name
Pin
Type
Pin Description
1
X1/ICLK
XI
Crystal connection. Connect this pin to a crystal or clock input.
2, 3, 8
VDD
Power
Connect to +3.3 V or +5 V. All VDD’s must be the same.
4
REFEN
Input
Reference Clock Enable. See table above. Connect to GND for best jitter/phase
noise.
5, 6, 7, 12
GND
Power
Connect to ground.
9
CLK
Output
Clock output set by input status of MSEL. See table above.
10, 15
DC
Don’t Connect. Do not connect these pins to anything.
11
PDCLK
Input
Power down clock. See table above.
13
MSEL
Input
Multiplier select pin. Selects x16 when low, x24 when high.
14
REFOUT
Output
Buffered reference output clock. Controlled by REFEN.
16
X2
XO
Crystal connection. Connect this pin to a crystal or leave unconnected for a clock.
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