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參數(shù)資料
| 型號： | SM5158 |
| 廠商： | Seiko NPC Corporation |
| 英文描述： | Serial input PLL frequency synthesizer |
| 中文描述： | 串行輸入鎖相環(huán)頻率合成器 |
| 文件頁數(shù)： | 2/7頁 |
| 文件大?。?/td> | 60K |
| 代理商： | SM5158 |
NIPPON PRECISION CIRCUITS-2
SM5158AS
BLOCK DIAGRAM
PIN DESCRIPTION
16 BIT COUNTER
PHASE
DETECTOR
LOCK
DETECTOR
CHARGE
PUMP
16 BIT N COUNTER
FIN
DATA
LD
FV
XOUT
LE
CLK
FR
DOA
DOP
OV
OR
16 BIT LATCH
BUFFER
16 BIT LATCH
17 BIT SHIFT REGISTER
XIN
Number
Name
Description
1
XIN
To connect external crystal and capacitor, or external clock input pin.
2
XOUT
To connect external crystal and capacitor,or oscilator output signal can be available at this pin.
3
FV
Buffered input frequency divider output.phase detector input
4
VDD
Positive supply pin. Apply +2.7 to 5.5 Volts.
5
DOP
Charge pump output for passive lowpass filter. Single ended tristate output.
6
VSS
Ground.
7
LD
Lock detector output. Logic Low when PLL is unlocked.
8
FIN
Comparison frequency input.Internal feedback resistor for AC coupling.
Input frequency range 20MHz to 200MHz.
9
CLK
Shift register clock input.
10
DATA
Serial data input.
11
LE
Latch enable input.
12
DOA
Chrage pump output for active lowpass filter. Single ended tristate output.
13
FR
Buffered reference frequency devider output. Phase detector input.
14
TEST
Test pin. Left open.
15
OV
Buffered phase detector output to a differential lowpass filter.
16
OR
Buffered phase detector output to a differential lowpass filter.
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