FEATURES

• +3 V single power supply

• Low power consumption

In operation: 7 mA (TYP.) (VDD = 3 V)

In stand-by mode: 50 mA (TYP.) (VDD = 3 V)

• CODEC

• 13-bit precision linear coding

• Transmission level can be controlled by microcontroller.

• Analog input/output funciton

• Low noise microphone amplifier

• High output receiver amplifier

Piezo-electric receiver can be directly driven.

Gain canbe controlled by microcontroller.

• On-chip amplifier for accessory input/output

• Tone generator

• Frequency, generating pattern and gain can be controlled

by microcontroller.

• DTMF generation function

• Various service tone generation function

• GSM triple tone generation function

• Desired tone frequency can be registered (0.3 to 3.4 kHz)