*PT2312/AT7312四声道音质处理

4 Channel Audio Processor PT2312
D*CRIPTION
PT2312 is a four-channel di*al control audio processor utilizing CMOS Technology. Volume, B*,
Balance, Front/Rear Fader Processor, Selectable Input Gain are incorporated into a single chip having
the highest performance and reliability with the least external components. All functions are
programmable using the I2C Bus. PT2312 is housed in 32-pin, SOP Package. 4 stereo inputs with
selectable input gain, 2-band tone control (treble & b*), balance, fader and loudness function are
incorporated into a single chip having the highest performance and reliability. Pin *ignments and
application circuits are optimized for easy PCB layout and cost saving advantages.
FEATUR*
• CMOS technology
• Least external components
• Treble and B* control
• Loudness function
• 4 stereo inputs with selectable input gain
• Input/output for external noise reduction system/equalizer
• 4 independent speaker controls for Fader and Balance
• Independent mute function
• Volume control in 1.25dB/step
• Low distortion
• Low noise and DC stepping
• Controlled by I2C bus micro-processor interface
• Available in 32 pins, SOP package
APPLICATIONS
• Car stereo (Audio)
• Hi-Fi audio system
• LCD monitor
Note:
Purchase of I2C Component of Princeton Technology Corporation (PTC) conveys a license under
Philips I2C Patent Right to use these components in any I2C System, provided that the system
conforms to the I2C Standard Specification defined by Philips.