Philips Semiconductors
Preliminary specification
Economy audio CODEC for MiniDisc (MD)
home stereo and portable applications
UDA1341TS
1
FEATURES
General
1.1
• 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
• Optional differential input configuration for enhanced
• 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
ADC sound quality
• Stereo line output (under microcontroller volume
control)
• Digital peak level detection
• High linearity, dynamic range and low distortion.
2
GENERAL DESCRIPTION
• Easy application
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.
• 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
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.
• 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)
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.
• 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
3
ORDERING INFORMATION
TYPE
PACKAGE
NUMBER
NAME
DESCRIPTION
VERSION
UDA1341TS
SSOP28
plastic shrink small outline package; 28 leads; body width 5.3 mm
SOT341-1
1998 Dec 18
3
NXP [ NXP ]
