July 1993

2

Philips Semiconductors

Preliminary specification

Stereo continuous calibration

DAC (CC-DAC)

TDA1312A; TDA1312AT

FEATURES

• 8 × oversampling (simultaneous input) possible

• Voltage output

• Space saving package SO8 or DIL8

• Low power consumption

• Wide dynamic range (16-bit resolution)

• Continuous Calibration (CC) concept

• Easy application:

– single 4 to 5.5 V rail supply

– output current and bias current are proportional to the

supply voltage

– integrated current-to-voltage converter

• Internal bias current ensures maximum dynamic range

• Wide operating temperature range (−40 °C to + 85 °C)

• Compatible with most current Japanese input formats:

time multiplexed, two's complement and TTL

• No zero-crossing distortion

• Cost efficient.

GENERAL DESCRIPTION

The TDA1312A; 1312AT is a voltage driven D/A converter

and is a device of a new generation of digital-to-analog

converters which embodies the innovative technique of

Continuous Calibration (CC). The largest bit-currents are

repeatedly generated by one single current reference

source. This duplication is based upon an internal charge

storage principle having an accuracy insensitive to ageing,

temperature matching and process variations.

The TDA1312A; 1312AT is fabricated in a 1.0

µm CMOS

process and features an extremely low power dissipation,

small package size and easy application. Furthermore, the

accuracy of the intrinsic high coarse-current combined

with the implemented symmetrical offset decoding method

preclude zero-crossing distortion and ensures high quality

audio reproduction. Therefore, the CC-DAC is eminently

suitable for use in (portable) digital audio equipment.

ORDERING INFORMATION

Notes

1. SOT97-1; 1996 August 14.

2. SOT96-1; 1996 August 14.

EXTENDED TYPE NUMBER

PACKAGE

PINS

PIN POSITION

MATERIAL

CODE

8

DIL

plastic

SOT97DE

8

SO8

plastic

SOT96AG