SA8016 datasheet(2/20 Pages) PHILIPS

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Philips Semiconductors

Product specification

SA8016

2.5GHz low voltage fractional-N synthesizer

1999 Nov 04

853–2142 22636

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 V

DD and VDDCP

APPLICATIONS

• 350–2500 MHz wireless equipment

• Cellular phones (all standards)

• WLAN

• Portable battery-powered radio equipment.

SR01505

LOCK

TEST

VDD

GND

RFin+

RFin–

GNDCP

PHP

PON

STROBE

DATA

CLOCK

REFin+

REFin–

RSET

VDDCP

Figure 1.

TSSOP16 Pin Configuration

TOP VIEW

DATA

CLOCK

REFin+

REFin–

N/C

SR02174

N/C

VDDPre

GND

GNDPre

RFin+

RFin–

N/C

Figure 2.

HBCC24 Pin configuration

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

MIN.

TYP.

MAX.

UNIT

VDD

Supply voltage

2.7

—

5.5

VDDCP

Analog supply voltage

VDDCP ≥ VDD

2.7

—

5.5

IDDCP+IDD

Total supply current

—

8.0

9.5

IDDCP+IDD

Total supply current in power-down mode

—

µA

fVCO

Input frequency

350

—

2500

MHz

fREF

Crystal reference input frequency

—

MHz

fPC

Maximum phase comparator frequency

—

MHz

Tamb

Operating ambient temperature

–40

—

+85

°C

ORDERING INFORMATION

TYPE NUMBER

PACKAGE

TYPE NUMBER

NAME

DESCRIPTION

VERSION

SA8016DH

TSSOP16

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

SOT403-1

SA8016WC

HBCC24

Plastic, heatsink bottom chip carrier; 24 terminals; body 4

× 4 × 0.65 mm (CSP package)

SOT564-1

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