2-channel PCM codec LSI for ISDN / VoIP terminal adapter

Overview
AK2306 suitable for ISDN terminal adapter (TA) It is a 2 channel PCM codec. Centered on Europe A-Law companding rule used in the region and used in North America and Japan Can be selected with the register.

FEATURE
■ Built-in 2-channel PCM codec / filter
■ Built-in RINGER TONE generator (16Hz / 20Hz)
■ Functions that can be set for each channel
    ▪ Power down (register setting)
    ▪ Mute (register setting)
    ▪ Gain adjustment + 6 to -18 dB (register setting 1.0 dB step)
■ PCM data interface Supports LongFrame / ShortFrame / GCI
■ PCM data transfer rate Configurable at N times frequency of 64 kHz (128 k-4.096 MHz)
■ Built-in operational amplifier for input / output gain adjustment
■ A-law, μ-law companding selection function (register setting)
■ Serial interface
■ Built-in power on reset
■ +5 V ± 5% single power supply (AK2306)
■ +3.3 ± 0.3 V single power supply (AK2306 LV)
■ Low power consumption
■ Small package