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UDA1341TS/N1

Economy audio CODEC for MiniDisc (MD) home stereo and portable applications

Philips Electronics 

Philips Semiconductors

Economy audio CODEC for MiniDisc (MD)

home stereo and portable applications

Preliminary specification

UDA1341TS

1 FEATURES

1.1 General

• Low power consumption

• 3.0 V power supply

• 256fs, 384fs or 512fs system clock frequencies (fsys)

• Small package size (SSOP28)

• Partially pin compatible with UDA1340M and

UDA1344TS

• Fully integrated analog front end including digital AGC

• ADC plus integrated high-pass filter to cancel DC offset

• ADC supports 2 V (RMS value) input signals

• Overload detector for easy record level control

• Separate power control for ADC and DAC

• No analog post filter required for DAC

• Easy application

• Functions controllable via L3-interface.

1.2 Multiple format data interface

• I2S-bus, MSB-justified and LSB-justified format

compatible

• Three combinational data formats with MSB data output

and LSB 16, 18 or 20 bits data input

• 1fs input and output format data rate.

1.3 DAC digital sound processing

• Digital dB-linear volume control (low microcontroller

load)

• Digital tone control, bass boost and treble

• Digital de-emphasis for 32, 44.1 or 48 kHz audio sample

frequencies (fs)

• Soft mute.

1.4 Advanced audio configuration

• DAC and ADC polarity control

• Two channel stereo single-ended input configuration

• Microphone input with on-board PGA

• Optional differential input configuration for enhanced

ADC sound quality

• Stereo line output (under microcontroller volume

control)

• Digital peak level detection

• High linearity, dynamic range and low distortion.

2 GENERAL DESCRIPTION

The UDA1341TS is a single-chip stereo Analog-to-Digital

Converter (ADC) and Digital-to-Analog Converter (DAC)

with signal processing features employing bitstream

conversion techniques. Its fully integrated analog front

end, including Programmable Gain Amplifier (PGA) and a

digital Automatic Gain Control (AGC). Digital Sound

Processing (DSP) featuring makes the device an excellent

choice for primary home stereo MiniDisc applications, but

by virtue of its low power and low voltage characteristics it

is also suitable for portable applications such as MD/CD

boomboxes, notebook PCs and digital video cameras.

The UDA1341TS is similar to the UDA1340M and the

UDA1344TS but adds features such as digital mixing of

two input signals and one channel with a PGA and a digital

AGC.

The UDA1341TS supports the I2S-bus data format with

word lengths of up to 20 bits, the MSB-justified data format

with word lengths of up to 20 bits, the LSB-justified serial

data format with word lengths of 16, 18 and 20 bits and

three combinations of MSB data output combined with

LSB 16, 18 and 20 bits data input. The UDA1341TS has

DSP features in playback mode like de-emphasis, volume,

bass boost, treble and soft mute, which can be controlled

via the L3-interface with a microcontroller.

3 ORDERING INFORMATION

TYPE

NUMBER

UDA1341TS

NAME

SSOP28

PACKAGE

DESCRIPTION

plastic shrink small outline package; 28 leads; body width 5.3 mm

VERSION

SOT341-1

1998 Dec 18

3

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