AK2306

Features:

- 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


Pinout




Specifications

Parameter	Symbol	Min	Max	Units
Power Supply Voltages Analog/Digital Power Supply	VDD	-0.3	6.5	V
VSS Voltage	VSS	-0.1	0.1	V
Digital Input Voltage	VTD	-0.3	VDD+0.3	V
Analog Input Voltage	VTA	-0.3	VDD+0.3	V
Input current (except power supply pins)	IIN	-10	10	mA
Storage Temperature	Tstg	-55	125

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.PCM interface of AK2306 accepts Long Frame, Short Frame clock formats and GCI format. 64 x N kHz(128k-4096kHz) clock input is available for PCM interface.AK2306 and AK2306LV are pin-compatible, but different products which power supply voltage are 5.0V and 3.3V,respectively.