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. VDDCP must be greater than or equal to VDD.
The charge pump current (gain) is set by an external resistance at
the RSET 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 VDD and VDDCP
SR01505
1
2
3
4
5
6
7
89
10
11
12
13
14
15
16
LOCK
TEST
VDD
GND
RFin+
RFin–
GNDCP
PHP
PON
STROBE
DATA
CLOCK
REFin+
REFin–
RSET
VDDCP
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
VDD Supply voltage 2.7 – 5.5 V
VDDCP Analog supply voltage VDDCP ≥ VDD 2.7 – 5.5 V
IDDCP+IDD Total supply current – 6.2 7.3 mA
IDDCP+IDD Total supply current in power-down mode – 1 – µA
fVCO Input frequency 350 – 1300 MHz
fREF Crystal reference input frequency 5 – 40 MHz
fPC Maximum phase comparator frequency – 4 MHz
Tamb Operating ambient temperature –40 – +85 °C
ORDERING INFORMATION
TYPENUMBER
PACKAGE
TYPE
NUMBER
NAME DESCRIPTION VERSION
SA7016DH TSSOP16 Plastic thin shrink small outline package; 16 leads; body width 4.4 mm SOT403–1