SA7016 Datasheet, PDF (3/18 Pages) NXP Semiconductors – 1.3GHz low voltage fractional-N synthesizer

Philips Semiconductors
1.3GHz low voltage fractional-N synthesizer
Product specification
SA7016
13
CLOCK
14
DATA
2–BIT SHIFT
REGISTER
15
STROBE
ADDRESS DECODER
22–BIT SHIFT
REGISTER
CONTROL
LATCH
GND
4
PUMP
CURRENT
SETTING
PUMP
BIAS
LOAD SIGNALS
RFin+
RFin–
5
6
AMP
LATCH
MAIN DIVIDER
12
REF_in+
REF_in–
11
LATCH
REFERENCE
DIVIDER
2
TEST
3
V_DD
Figure 2. Block Diagram
PINNING
SYMBOL
LOCK
TEST
V_DD
GND
RFin+
RFin–
GND_CP
PHP
V_DDCP
R_SET
REFin–
REFin+
CLOCK
DATA
STROBE
PON
PIN
DESCRIPTION
1 Lock detect output
2 Test (should be either grounded or
connected to V_DD)
3 Digital supply
4 Digital ground
5 RF input to main divider
6 RF input to main divider
7 Charge pump ground
8 Main normal chargepump
9 Charge pump supply voltage
10 External resistor from this pin to ground
sets the chargepump current
11 Reference input
12 Reference input
13 Programming bus clock input
14 Programming bus data input
15 Programming bus enable input
16 Power down control
COMP
PHASE
DETECTOR
10
R_SET
9
V_DDCP
8
PHP
7
GND_CP
1
LOCK
16
PON
SR01506
1999 Nov 04
3