GENERAL DESCRIPTION

AK2306 is a dual PCM CODEC-Filter most suitable for ISDN Terminal Adapter.

It includes Selectable A-law/u-law function, Internal Gain Adjustment from +6dB to –18dB by 1dB step control, Selectable 16Hz/20Hz Ring Tone Generator for SLIC. All of these functions are controlled by the internal register accessed through the serial interface.

FEATURE

- Dual PCM CODEC and Filtering systems for ISDN Terminal Adapter

- Selectable Ring Tone Generator for SLIC 16Hz or 20Hz tone is available.

- Independent functions on each channel controlled by the internal register

- Power Down Mode

- Mute

- Gain Adjustment: +6 to -18dB (1dB step)

- Selectable PCM Data Interface Timing: Long Frame / Short Frame/GCI

- Variable PCM Data Rate: 64k x N [Hz] (128k - 4.096MHz)

- OP Amp for External Gain Adjustment

- A-law/u-law Register Selectable

- Serial Interface to access the internal register

- Power on Reset

- Single Power Supply Voltage

- +5.0V ± 5 (AK2306)

- +3.3V ± 0.3V (AK2306LV)

- Low Power Consumption