AN6175K Datasheet, PDF (1/21 Pages) Panasonic Semiconductor – Hands-free Speech Network IC

ICs for Telephone
AN6175K
Hands-free Speech Network IC
s Overview
The AN6175K is a speech network IC incorporating a
hands-free function. It provides for a high-quality hands-
free telephone or handset telephone. The hands-free
telephone function(HF)includes :
• MIC amplifier capable of mute and gain control
• Background noise monitoring
• Voice switching attenuation control
• Symmetrical transmitter/receiver attenuators
• Dynamic loudspeaker amplifier
The handset telephone function(HF)includes:
• Automatic pad capable of detecting transmission
distance
• MIC amplifier
• Receiver preamplifier
• Dynamic loudspeaker amplifier
s Features
• Provides all the functions required of a hands-free or
handset telephone.
• Can operate on line voltage (requiring no external
power supply).
• Consumes minimal current.
• Provides for an external filter ensuring a wide range of
howling suppression.
• Mute mode for hands-free operation
• Background noise monitoring to improve transmission
quality
• 100 mW loudspeaker output (at I_L=100mA)
• Built-in power supply and low-voltage regulator
• DIP package with 42-pins or QFH package with 44-pins
AN6175K
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13.7±0.3
42
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4.76±0.25
Unit : mm
0.96±0.25
3.3±0.25
3 ∼ 15°
15.3±0.25
0.3^{+−00.1.05}
SDIP package with 42 pins (SDIP042-P-0600A)
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