Philips Semiconductors

Product specification

SA604A

High performance low power FM IF system

2

1997 Nov 07

853-1431 18663

DESCRIPTION

The SA604A is an improved monolithic low-power FM IF system

incorporating two limiting intermediate frequency amplifiers,

quadrature detector, muting, logarithmic received signal strength

indicator, and voltage regulator. The SA604A features higher IF

bandwidth (25MHz) and temperature compensated RSSI and

limiters permitting higher performance application compared with the

SA604. The SA604A is available in a 16-lead SO (surface-mounted

miniature) package.

FEATURES

Indicator (RSSI) with a dynamic range in excess of 90dB

matching network) for 12dB SINAD (Signal to Noise and Distortion

ratio) at 455kHz

PIN CONFIGURATION

D Package

IF AMP DECOUPLING 1

2

3

4

5

6

7

8

9

10

11

12

13

14

16

15

GND

MUTE INPUT

RSSI OUTPUT

MUTE AUDIO OUTPUT

UNMUTE AUDIO OUTPUT

QUADRATURE INPUT

IF AMP INPUT

IF AMP DECOUPLING

IF AMP OUTPUT

GND

LIMITER INPUT

LIMITER DECOUPLING

LIMITER DECOUPLING

LIMITER

VCC

SR00311

Figure 1. Pin Configuration

APPLICATIONS

ORDERING INFORMATION

DESCRIPTION

TEMPERATURE RANGE

ORDER CODE

DWG #

16-Pin Plastic Small Outline (SO) package (Surface-mount)

-40 to +85

°C

SA604AD

SOT109-1

ABSOLUTE MAXIMUM RATINGS

SYMBOL

PARAMETER

RATING

UNITS

Single supply voltage

9

V

Storage temperature range

-65 to +150

°C

Operating ambient temperature range SA604A

40 to +85

°C

Thermal impedance

D package

90

°C/W