AK2303LV Datasheet | Asahi Kasei Microdevices

DESCRIPTION AK2303LV is a 3.3V dual PCM CODEC-Filter most suitable for analog line card of PBX switch. CODEC-Filter is pliant with G711/G712 remendations. It includes Selectable A-law/u-law function, Internal Gain Adjustment from +6d B to - 18d B by 1d B step control. All of these functions are controlled by the internal register accessed through the serial interface. Additionally, channel mute and A-law/u-law selection is controlled by the hard pin. PCM interface of AK2303LV supports Long Frame, Short Frame clock formats and GCI format. 4.096MHz, 2.048MHz bit clock input is available for PCM interface. - Dual FEATURE PCM CODEC and Filtering systems for PBX switch - Independent functions on each channel Controlled by the internal register or hard pin - Power Down Mode (Register setting) - Mute (Hard pin, register setting) - Gain Adjustment: +6 to -18d B (1d B step by register setting) - Selectable PCM Data Interface Timing: Long Frame / Short Frame/GCI - Selectable PCM Data Rate: 4.096MHz, 2.048MHz (Register setting) - OP Amp for External Gain Adjustment - A-law/u-law Select (Hard pin, Register setting) - Serial Interface for the internal register access - Power on Reset - Single Power Supply Voltage - +3.3V ± 0.3V - Low Power Consumption - 35m W typ PACKAGE - 28pin VSOP 9.8 x 7.6 mm (0.65mm pin pitch) MS0117-E-00 2001/09 ASAHI KASEI [AK2303LV] CONTENTS ITEMS - BLOCK DIAGRAM….…………..……………………… - PIN ASSIGNMENT….……………………………..…… - PIN CONDITION……...………………………………… - PIN FUNCTION…….…………………………………… - FUNCTIONAL DESCRIPTION …….…..……………… LONGFRAME/SHORTFRAME……….…… GCI……………………………………………. - MUTE…………………………………….……… - RESET…………………………..………………. - SERIAL INTERFACE………….………….…… - MODE SETTING……..……………………..….. - REGISTER……….………………………………………...