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Philips Semiconductors
1.3GHz low voltage fractional-N synthesizer
GENERAL DESCRIPTION
The SA7016 BICMOS device integrates programmable dividers,
charge pumps and a phase comparator to implement a
phase-locked loop. The device is designed to operate from 3 NiCd
cells, in pocket phones, with low current and nominal 3 V supplies.
The synthesizer operates at VCO input frequencies up to 1.3 GHz.
The synthesizer has fully programmable main and reference
dividers. All divider ratios are supplied via a 3-wire serial
programming bus.
Separate power and ground pins are provided to the analog and
digital circuits. The ground leads should be externally short-circuited
to prevent large currents flowing across the die and thus causing
damage. V
must be greater than or equal to V
DDCP
The charge pump current (gain) is set by an external resistance at
the R
pin
Only passive loop filters could be used; the charge
SET
.
pump operates within a wide voltage compliance range to provide a
wider tuning range.
FEATURES
Low phase noise
Low power
Fully programmable main divider
Internal fractional spurious compensation
Hardware and software power down
Split supply for V
and V
DD
DDCP
QUICK REFERENCE DATA
SYMBOL
V
Supply voltage
DD
V
Analog supply voltage
DDCP
I
+I
Total supply current
DDCP
DD
I
+I
Total supply current in power-down mode
DDCP
DD
f
Input frequency
VCO
f
Crystal reference input frequency
REF
f
Maximum phase comparator frequency
PC
T
Operating ambient temperature
amb
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
TYPE NUMBER
NAME
SA7016DH
TSSOP16
1999 Nov 04
.
DD
PARAMETER
DESCRIPTION
Plastic thin shrink small outline package; 16 leads; body width 4.4 mm
1
LOCK
2
TEST
3
V
DD
4
GND
5
RFin+
6
RFin–
7
GND
CP
8
PHP
Figure 1. Pin Configuration
APPLICATIONS
350–1300 MHz wireless equipment
Cellular phones
Portable battery-powered radio equipment.
CONDITIONS
MIN.
2.7
V
V
2.7
DDCP
DD
–
–
350
5
–
–40
2
Product specification
SA7016
PON
16
15
STROBE
14
DATA
13
CLOCK
12
REFin+
11
REFin–
10
R
SET
9
V
DDCP
SR01505
TYP.
MAX.
UNIT
–
5.5
V
–
5.5
V
6.2
7.3
mA
1
–
A
–
1300
MHz
–
40
MHz
4
MHz
–
+85
C
VERSION
SOT403–1
853–2160 22634
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