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SA8016WC

2.5GHz low voltage fractional-N synthesizer

Philips Electronics 

Philips Semiconductors

2.5GHz low voltage fractional-N synthesizer

Product specification

SA8016

GENERAL DESCRIPTION

The SA8016 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 2.5 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

LOCK 1

TEST 2

VDD 3

GND 4

RFin+ 5

RFin– 6

GNDCP 7

PHP 8

16 PON

15 STROBE

14 DATA

13 CLOCK

12 REFin+

11 REFin–

10 RSET

9 VDDCP

SR01505

Figure 1. TSSOP16 Pin Configuration

VDDPre

GND

GNDPre

RFin+

RFin–

N/C

1 24 23 22 21 20 19

2

18

3

17

4

TOP VIEW

16

5

15

6

14

7 8 9 10 11 12 13

DATA

CLOCK

REFin+

REFin–

N/C

N/C

APPLICATIONS

• 350–2500 MHz wireless equipment

• Cellular phones (all standards)

• WLAN

• Portable battery-powered radio equipment.

SR02174

Figure 2. HBCC24 Pin configuration

QUICK REFERENCE DATA

SYMBOL

PARAMETER

VDD

VDDCP

IDDCP+IDD

IDDCP+IDD

fVCO

fREF

fPC

Tamb

Supply voltage

Analog supply voltage

Total supply current

Total supply current in power-down mode

Input frequency

Crystal reference input frequency

Maximum phase comparator frequency

Operating ambient temperature

CONDITIONS

VDDCP ≥ VDD

MIN.

2.7

2.7

—

—

350

5

—

–40

TYP.

—

—

8.0

1

—

—

—

MAX.

5.5

5.5

9.5

—

2500

40

4

+85

UNIT

V

V

mA

µA

MHz

MHz

MHz

°C

ORDERING INFORMATION

PACKAGE

TYPE NUMBER

NAME

DESCRIPTION

SA8016DH

TSSOP16

Plastic thin shrink small outline package; 16 leads; body width 4.4 mm

SA8016WC

HBCC24

Plastic, heatsink bottom chip carrier; 24 terminals; body 4 × 4 × 0.65 mm (CSP package)

VERSION

SOT403-1

SOT564-1

1999 Nov 04

2

853–2142 22636

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