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Philips Semiconductors Product specification
SA70161.3GHz low voltage fractional-N synthesizer
2
1999 Nov 04 853–2160 22634
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
DDCP
must be greater than or equal to V
DD
.
The charge pump current (gain) is set by an external resistance at
the R
SET pin. Only passive loop filters could be used; the charge
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
DD
and V
DDCP
SR01505
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
LOCK
TEST
V
DD
GND
RFin+
RFin–
GND
CP
PHP
PON
STROBE
DATA
CLOCK
REFin+
REFin–
R
SET
V
DDCP
Figure 1. Pin Configuration
APPLICATIONS
• 350–1300 MHz wireless equipment
• Cellular phones
• Portable battery-powered radio equipment.
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
DD
Supply voltage 2.7 – 5.5 V
V
DDCP
Analog supply voltage V
DDCP
≥ V
DD
2.7 – 5.5 V
I
DDCP
+I
DD
Total supply current – 6.2 7.3 mA
I
DDCP
+I
DD
Total supply current in power-down mode – 1 – µA
f
VCO
Input frequency 350 – 1300 MHz
f
REF
Crystal reference input frequency 5 – 40 MHz
f
PC
Maximum phase comparator frequency – 4 MHz
T
amb
Operating ambient temperature –40 – +85 °C
ORDERING INFORMATION
TYPE NUMBER
PACKAGE
TYPE
NUMBER
NAME DESCRIPTION VERSION
SA7016DH TSSOP16 Plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403–1