TDA1545ATT Ver la hoja de datos (PDF) - Philips Electronics
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TDA1545ATT Datasheet PDF : 20 Pages
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Philips Semiconductors
Stereo continuous calibration DAC
Preliminary specification
TDA1545A
FEATURES
• Space saving packages
• Low power consumption
• Low total harmonic distortion
• Wide dynamic range (16-bit resolution)
• Continuous calibration concept
• Easy application: single 3 to 5.5 V rail power supply and
output- and bias current are proportional to the supply
voltage
• Fast settling time permits 2×, 4× and 8× oversampling
(serial input) or double speed operation at 4×
oversampling
• Internal bias current ensures maximum dynamic range
• Wide operating temperature range of −40 to +85 °C
• Compatible with most of the Japanese input formats:
time multiplexed, two's complement and TTL
• No zero crossing distortion.
GENERAL DESCRIPTION
The TDA1545A is the first device of a new generation of
the digital-to-analog converters which embodies the
innovative technique of continuous calibration. 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 and process variations.
The device 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 high coarse current combined with the
implemented symmetrical offset decoding method
preclude zero-crossing distortion and ensures high quality
audio reproduction. Therefore, the continuous calibration
digital-to-analog converter is eminently suitable for use in
(portable) digital audio equipment.
ORDERING INFORMATION
TYPE
NUMBER
TDA1545A
TDA1545AT
TDA1545ATT
PACKAGE
NAME
DESCRIPTION
DIP8
SO8
TSSOP14
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 3.9 mm
plastic thin shrink small outline package; 14 leads; body width 4.4 mm
VERSION
SOT97-1
SOT96-1
SOT402-1
1997 Sep 04
2
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