sa8027 NXP Semiconductors, sa8027 Datasheet - Page 3

• Manufacturer Part Number: sa8027
• Description: 2.5 Ghz Low Voltage, Low Power Rf Fractional-n/if Integer Frequency Synthesizer
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TSSOP20 PIN DESCRIPTION
2001 Aug 21
LOCK
TEST
V
GND
RFin+
RFin–
GND
PHP
PHI
GND
SYMBOL
DD
2.5 GHz low voltage, low power
RF fractional-N/IF integer frequency synthesizer
CP
CP
RF/MAINin+
RF/MAINin–
STROBE
IF/AUXin
CLOCK
REFin+
REFin–
DATA
TEST
PIN
10
1
2
3
4
5
6
7
8
9
17
18
19
12
16
15
5
6
2
Lock detect output
Test (should be either grounded or
connected to V
Digital supply
Digital ground
RF input to main divider
RF input to main divider
Charge pump ground
Main normal charge pump
Main integral charge pump
Charge pump ground
AMP
AMP
ADDRESS DECODER
LOAD SIGNALS
2–BIT SHIFT
REGISTER
DESCRIPTION
DD
)
REFERENCE
LATCH
DIVIDER
Figure 3. Block Diagram (TSSOP20)
MAIN DIVIDER
AUX DIVIDER
22–BIT SHIFT
LATCH
LATCH
REGISTER
CONTROL
LATCH
SM
SA
2 2 2 2
3
PHA
AUXin
V
R
REFin–
REFin+
CLOCK
DATA
STROBE
PON
GND
4
SYMBOL
DDCP
SET
CURRENT
SETTING
PUMP
PUMP
BIAS
7, 10
GND
V
3
PIN
DETECTOR
DD
11
12
13
14
15
16
17
18
19
20
DETECTOR
COMP
FRAC
PHASE
PHASE
CP
Auxiliary charge pump output
Input to auxiliary divider
Charge pump supply voltage
External resistor from this pin to ground
sets the charge pump current
Reference input
Reference input
Programming bus clock input
Programming bus data input
Programming bus enable input
Power down control
SELECT
LOCK
V
13
DDCP
DESCRIPTION
14
11
20
8
9
1
SR02357
LOCK
R
PHP
PHA
PON
PHI
SET
SA8027
Product data