Philips Semiconductors
Noise shaping filter DAC
Product specification
TDA1386T
FEATURES
General
• Double-speed mode
• Digital volume control
• Soft mute function
• 12 dB attenuation
• Low power dissipation
• Digital de-emphasis.
Easy application
• Voltage output
• Only 1st-order analog post-filtering required
• Operational amplifiers and digital filter integrated
• 256fs system clock (fsys)
• I2S-bus or 16, 18 or 20 bits LSB fixed serial input format
• Single rail supply.
GENERAL DESCRIPTION
The TDA1386T is a dual CMOS digital-to-analog converter
with up-sampling filter and noise shaper. The combination
of oversampling up to 4fs, noise shaping and continuous
calibration conversion ensures that only simple 1st order
analog post filtering is required.
The TDA1386T supports the I2S-bus data input mode with
word lengths of up to 20 bits and the LSB fixed serial data
input format with word lengths of 16, 18 or 20 bits.
Two cascaded IIR filters increase the sampling rate
4 times.
The DACs are of the continuous calibration type and
incorporate a special data coding. This ensures a high
signal-to-noise ratio, wide dynamic range and immunity to
process variation and component ageing.
Two on-board operational amplifiers convert the
digital-to-analog current to an output voltage.
High performance
• Superior signal-to-noise ratio
• Wide dynamic range
• No zero crossing distortion
• Inherently monotonic
• Continuous calibration digital-to-analog conversion
combined with noise shaping technique.
ORDERING INFORMATION
TYPE NUMBER
TDA1386T
NAME
SO24
PACKAGE
DESCRIPTION
plastic small outline package; 24 leads; body width 7.5 mm
VERSION
SOT137-1
1998 Jan 06
2