Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Sound Fader Controller IC
PT2318
DESCRIPTION
PT2318 is a sound fader controller IC utilizing CMOS Technology specially designed for car radio hi-fi
audio applications. Four selectable stereo inputs, 1 mono input, bass, treble, volume, balance and
fader controls, mute function and a special loudness feature which is automatically controlled in
combination with the volume level setting are all built into a single I
2
C bus controlled stereo
preamplifier chip having the highest performance and reliability. Pin assignments and application
circuits are optimized for easy PCB layout and cost saving advantages.
FEATURES
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CMOS technology
I
2
C bus control interface
4 selectable stereo inputs
1 mono input
Volume, Balance and Fader controls
Bass & Treble controls
Noise reduction circuit interface provided
External equalizer interface provided
Mute control at audio signal zero crossing
Internal power-on reset function
Mute function controlled via the I
2
C bus or pin
Special automatic loudness feature in combination with the volume setting
APPLICATIONS
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Car audio
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Hi-Fi audio applications
PT2318 V1.2
-1-
March, 2006
PTC [ PRINCETON TECHNOLOGY CORP ]
