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AK2306

Asahi Kasei Microsystems
Part Number AK2306
Manufacturer Asahi Kasei Microsystems
Description Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER
Published Mar 23, 2005
Detailed Description ASAHI KASEI [AK2306/LV] AK2306/2306LV Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER GENERAL DESCRIPTION AK2306 is a du...
Datasheet PDF File AK2306 PDF File

AK2306
AK2306

Overview
ASAHI KASEI [AK2306/LV] AK2306/2306LV Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER 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.
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.
- Dual FEATURE 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 PACKAGE - 24pinVSOP 7.
9 x 7.
6 mm (0.
5mm pin pitch) MS0093-E-04 1 2001/11 ASAHI KASEI [AK2306/LV] CONTENTS ITEMS - BLOCK DIAGRAM….
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……………………… - PIN ASSIGNMENT….
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…… - PIN CONDITION…….
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………………………………… - PIN FUNCTION…….
…………………………………… - FUNCTIONAL DESCRIPTION…….
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……………… LONGFRAME/SHORTFRAME/GCI - MUTE…………………………………….
……… 12 - GAIN ADJUSTMENT….
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…………………… 13 - RING TONE GENERATOR .
- RESET 14 15 PAGE 3 4 5 6 9 - CIRCUIT DESCRIPTION….
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… 8 - PCM INTERFACE……….
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9 - POWER DOWN…….
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…… 16 - ...


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