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AK2306 Dataheets PDF



Part Number AK2306
Manufacturers Asahi Kasei Microsystems
Logo Asahi Kasei Microsystems
Description Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER
Datasheet AK2306 DatasheetAK2306 Datasheet (PDF)

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 .

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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….…………..……………………… - PIN ASSIGNMENT….……………………………..…… - PIN CONDITION……...………………………………… - PIN FUNCTION…….…………………………………… - FUNCTIONAL DESCRIPTION…….…..……………… LONGFRAME/SHORTFRAME/GCI - MUTE…………………………………….……… 12 - GAIN ADJUSTMENT….…..…………………… 13 - RING TONE GENERATOR .......................... - RESET ....................................................... 14 15 PAGE 3 4 5 6 9 - CIRCUIT DESCRIPTION….….……………………...… 8 - PCM INTERFACE……….…………………….... 9 - POWER DOWN……..……………………..…… 16 - SERIAL INTERFACE………….………….…… 18 - REGISTER……….……………………………………… 22 - ABSOLUTE MAXIMUM RATINGS……..…………..… 25 - RECOMMENDED OPERATING CONDITIONS…….. 25 - ELECTRICAL CHARACTERISTICS……..………...… 25 - APPLICATION CIRCUIT EXAMPLE…..…………...… 34 - PACKAGE INFORMATION……..…………………..… 36 MS0093-E-04 2 2001/11 ASAHI KASEI [AK2306/LV] BLOCK DIAGRAM GST0 VFTP0 VFTN0 VR0 VFR0 GSR0 GST1 VFTP1 VFTN1 VR1 VFR1 GSR1 TNOUT VREF LPC GA0T AMPT0 GA0R AAF0 CODEC CH0 PCM I/F FS0 SMF0 DX DR FS AMPR0 BCLK GA1T AMPT1 GA1R AMPR1 AAF1 CODEC CH1 FS1 SMF1 RING TONE GENERATOR BGREF PLL RXVlm0 TXVlm1 TXVlm0 RXVlm1 PWDN A/u_SEL Mut0 Mut1 VDD VSS Power on Reset Internal Register Serial I/F R i t SCLK DATA CSN MS0093-E-04 3 2001/11 ASAHI KASEI [AK2306/LV] PIN ASSIGNMENT VFTP1 VFTN1 GST1 GSR1 VFR1 VR1 VDD FS BCLK DX DR TNOUT 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 VREF VFTP0 VFTN0 GST0 GSR0 VFR0 VSS VR0 LPC CSN DATA SCLK MS0093-E-04 4 2001/11 ASAHI KASEI [AK.


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