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SA5753ADK

Audio processor — filter and control section

Philips Electronics 

Philips Semiconductors

Audio processor – filter and control section

Product specification

SA5753

DESCRIPTION

The SA5753 is a high performance low power CMOS audio signal

processing system especially designed to meet the requirements for

small size and low voltage operation of hand-held equipment. The

SA5753 subsystem includes complementary transmit/receive voice

band (300-3000Hz), switched capacitor bandpass filters with

pre-emphasis and de-emphasis respectively, a transmit low pass

filter, peak deviation limiter for transmit, digitally controlled

attenuators for signal level and volume control, audio path mute

switches, a programmable DTMF generator, power-down circuitry

for low current standby, power-on reset capability, and an I2C

interface. When the SA5753 is used with an SA5752 (companding

function), the complete audio processing system of an AMPS,

TACS, NAMPS or NTACS cellular telephone is easily implemented.

The system also meets the requirements of the proposed NAMPS or

NTACS specification, and can be used in cordless telephone

applications.

The SA5753 can be operated without the I2C bus interface by

pulling DFT (Pin 13) HIGH.

BENEFITS

• Very compact application

• Long battery life in portable equipment

• Complete cellular audio function with the SA5752

APPLICATIONS

• Cellular radio

• Mobile communications

• High performance cordless telephones

• 2-way radio

PIN CONFIGURATION

DK Package

TXBFIN 1

TXBFOUT 2

PREMPIN 3

VDD 4

VOXCTL 5

HPDN 6

DEMPOUT 7

AUDIOIN 8

SPKROUT 9

EAROUT 10

SA5753

20 TXOUT

19 DATAIN

18 TX MUTE

17 SDA

16 SCL

15 GND

14 CLKIN

13 DFT

12 RX MUTE

11 RX DEMODIN

Figure 1. Pin Configuration

SR00666

FEATURES

• Low 3V supply

• Miniature SSOP package

• Low power

• High performance

• Built-in programmable DTMF generator

• Built-in digitally controlled attenuators for modulation and volume

control

• Built-in peak-deviation limiter

• I2C Bus controlled

• Power-on reset

• Power down capability

• Programmable mute control

• Meets AMPS/TACS/NAMPS/NTACS requirements

ORDERING INFORMATION

DESCRIPTION

20-Pin Plastic Shrink Small Outline Package (SSOP)

TEMPERATURE RANGE

-40 to +85°C

ORDER CODE

SA5753DK

DWG #

SOT266-1

ABSOLUTE MAXIMUM RATINGS

SYMBOL

VDD

VIN

PARAMETER

Power supply voltage range

Voltage applied to any other pin

Storage temperature

TA

Ambient operating temperature

RATING

-0.3 to 6

-0.3 to VDD+0.3

-65 to +150

-40 to +85

UNIT

V

V

oC

°C

1997 Nov 07

2

853-1722 18666

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