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參數(shù)資料
| 型號(hào)： | ICS377R-XX |
| 元件分類： | 時(shí)鐘產(chǎn)生/分配 |
| 英文描述： | 200 MHz, OTHER CLOCK GENERATOR, PDSO28 |
| 封裝： | 0.150 INCH, QSOP-28 |
| 文件頁(yè)數(shù)： | 2/5頁(yè) |
| 文件大?。?/td> | 73K |
| 代理商： | ICS377R-XX |
MDS 377 B
2
Revision 050401
Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA, 95126 (408) 295-9800 www.icst.com
ICS377
Quad PLL with VCXO
Quick Turn Clock Synthesizer
PRELIMINARY INFORMATION
Pin Assignments
Number
Name
Type Description
1
X1
XI
Crystal connection. Connect to fundamental mode pullable crystal.
2
S0
I
Select pin 0 for frequency table/chip control. Internal pull-up resistor.
3
S1
I
Select pin 1 for frequency table/chip control. Internal pull-up resistor.
4
VIN
VI
VCXO Voltage input. Zero to 3.3V analog control voltage for VCXO
5, 6
VDD
P
Connect to +3.3V.
7-10
GND
P
Connect to ground.
11
CLK1
O
Clock output 1. Independent output or part of low skew bank A.
12
CLK2
O
Clock output 2. Independent output or part of low skew bank A.
13
CLK3
O
Clock output 3. Independent output or part of low skew bank A.
14
CLK4
O
Clock output 4. Independent output or part of low skew bank A.
15
CLK8
O
Clock output 8. Independent output or part of low skew bank B.
16
CLK7
O
Clock output 7. Independent output or part of low skew bank B.
17
CLK6
O
Clock output 6. Independent output or part of low skew bank B.
18
CLK5
O
Clock output 5. Independent output or part of low skew bank B.
19-21
GND
P
Connect to ground.
22-24
VDD
P
Connect to +3.3V.
25
S2
I
Select pin 2 for frequency table/chip control. Internal pull-up resistor.
26
PDTS
I
All-chip power down when low. See Note 1.
27
VDD
P
Connect to +3.3V.
28
X2
XO
Crystal connection. Connect to fundamental mode pullable crystal.
Pin Descriptions
Key: XI, XO = crystal connections, I = Input, O = output, P = power supply connection
Note 1: All outputs are internally high impedance with a weak internal pull-down resistor. When PDTS is
active, it is possible to overdrive the output pins for board-level testing.
1
23
2
3
4
22
21
20
28 pin (150 mil) SSOP (QSOP)
5
6
7
8
19
18
10
9
25
24
26
27
VIN
GND
S0
GND
S1
X1
GND
VDD
X2
VDD
GND
CLK5
GND
VDD
PDTS
11
12
13
14
17
16
15
28
CLK1
CLK2
CLK3
CLK4
CLK8
CLK7
CLK6
S2
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