FS7140-01 / FS7140-01g / FS7145 Programmable Phase-Locked Loop Clock Generator
Table 1: FS7140 Pin Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Type
DI
DIO
DI
D
P
AI
AO
DI
D
P
AI
-
P
DI
U
-
P
DO
DO
Name
SCL
SDA
ADDR0
VSS
XIN
XOUT
ADDR1
VDD
IPRG
n/c
VSS
REF
n/c
VDD
CLKP
CLKN
Description
Serial Interface Clock (requires an external pull-up)
Serial Interface Data Input/Output (requires an external pull-up)
Address Select Bit "0"
Ground
Crystal Oscillator Feedback
Crystal Oscillator Drive
Address Select Bit "1"
Power Supply (+3.3V nominal)
PECL Current Drive Programming
No Connection
Ground
Reference Frequency Input
No Connection
Power Supply (+3.3V nominal)
Clock Output
Inverted Clock Output
Data Sheet
Key: AI = Analog Input; AO = Analog Output; DI = Digital Input; DI
U
= Input with Internal Pull-Up; DI
D
= Input with Internal Pull-Down; DIO = Digital Input/Output;
DI-3 = Three-Level Digital Input, DO = Digital Output; P = Power/Ground; # = Active Low pin
Table 2: FS7145 Pin Descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Type
DI
DIO
DI
D
P
AI
AO
DI
D
P
AI
-
P
DI
U
DI
U
Name
SCL
SDA
ADDR0
VSS
XIN
XOUT
ADDR1
VDD
IPRG
n/c
VSS
REF
SYNC
VDD
CLKP
CLKN
Description
Serial Interface Clock (requires an external pull-up)
Serial Interface Data Input/Output (requires an external pull-up)
Address Select Bit "0"
Ground
Crystal Oscillator Feedback
Crystal Oscillator Drive
Address Select Bit "1"
Power Supply (+3.3V nominal)
PECL Current Drive Programming
No Connection
Ground
Reference Frequency Input
Synchronization Input
Power Supply (+3.3V nominal)
Clock Output
Inverted Clock Output
P
DO
DO
Key: AI = Analog Input; AO = Analog Output; DI = Digital Input; DI
U
= Input with Internal Pull-Up; DI
D
= Input with Internal Pull-Down; DIO = Digital Input/Output;
DI-3 = Three-Level Digital Input, DO = Digital Output; P = Power/Ground; # = Active Low pin
AMI Semiconductor - Rev. 3.0
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