Philips Semiconductors
Product specification
1GHz low-voltage Fractional-N synthesizer
SA7025
PIN DESCRIPTIONS
Symbol
CLOCK
DATA
STROBE
V
SS
RF
IN
RF
IN
V
CCP
REF
IN
RA
AUX
IN
PHA
V
SSA
PHI
PHP
V
DDA
RN
RF
LOCK
TEST
V
DD
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Serial clock input
Serial data input
Serial strobe input
Digital ground
Prescaler positive input
Prescaler negative input
Prescaler positive supply voltage. This pin supplies power to the prescaler and RF input buffer
Reference divider input
Auxiliary current setting; resistor to V
SSA
Auxiliary divider input
Auxiliary phase detector output
Analog ground
Integral phase detector output
Proportional phase detector output
Analog supply voltage. This pin supplies power to the charge pumps, Auxiliary prescaler, Auxiliary and Reference
buffers.
Main current setting; resistor to V
SSA
Fractional compensation current setting; resistor to V
SSA
Lock detector output
Test pin; connect to V
DD
Digital supply voltage. This pin supplies power to the CMOS digital part of the device
Description
1996 Aug 6
3
PHILIPS [ NXP SEMICONDUCTORS ]
