Features:
CD3313 is an audio processing circuit with volume, tone (bass, treble), balance (left, right) and loudness (front, back) control, PIN√PINPT2313; TDA7313
The circuit provides input gain selection and local loudness control functions. All controls are operated through a serial I²C bus that can be connected to a microcomputer; various AC amplitude-frequency characteristics can be set by combining an external resistor-capacitor network with an internal operational amplifier.
Due to the use of high-performance bipolar/CMOS process technology, low distortion, low noise and low DC level drift are achieved.
parameter;
. Contains input multiplexer
. Three-way stereo signal input
. Input gain can be set to best match various signal sources
. Four-channel attenuation
. Four channels can be controlled independently. Balance and loudness can be attenuated and boosted by 1.25dB per level
. Independent mute control function
. All functions are controlled via the serial I²C bus
. With loudness control function
. Volume control 1.25dB per level
. Treble and Bass Controls
. Input and output terminals can be matched with external equalizer and noise suppression circuits
Pin arrangement;
Functional block diagram;
application;
Suitable for high-quality car radios and hi-fi audio systems.
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