Key facts
- Manuals
- 16
- Languages
- EN · JA
- Last added
- 2012-06-12
Featured AKM manuals

Asahi Kasei AK2307/LV Speech Codec Programming Manual
The AK2307/LV is an integrated LSI speech codec intended for PBX/KTS digital key telephones and VoIP devices. It combines PCM encoding/decoding, voice‑path control, microphone amplification, and handset driver functions in a single chip.
The manual covers the block diagram, pin assignments, electrical ratings, serial CPU register interface, selectable PCM data modes, and package dimensions, giving developers the information needed to program the device via its serial interface and configure the desired PCM format.
Covers: General Description · Block Diagram · Pin Assignment · Pin Conditions · Absolute Maximum Ratings · Functional Descriptions

AKM AK4543 AC'97 Rev 2.1 Multimedia Audio CODEC Datasheet
The AK4543 is an 18‑bit high‑performance audio CODEC compliant with AC'97 Rev 2.1. It offers four stereo inputs (LINE, CD, VIDEO, AUX), a speakerphone input, and PC BEEP input, plus stereo and mono outputs with independent volume control. The device can operate as a primary or secondary codec and supports multiple‑codec configurations for docking stations and multi‑speaker systems.
The datasheet provides detailed pin‑out information, absolute maximum ratings, analog and digital filter characteristics, switching timing, and power‑on/reset procedures. Key electrical specifications include 5 V analog and 3.3 V/5 V digital supplies, 200 mW typical power consumption, and a 48‑pin LQFP package.
Covers: Features · General Description · Pin/Function · Absolute Maximum Rating · Analog Characteristics · Filter Characteristics

AKM AK4397 32‑Bit DAC Datasheet
The AK4397 is a high‑performance premium 32‑bit DAC from Asahi Kasei Microdevices. It supports 30 kHz‑216 kHz sampling rates, including 192 kHz PCM and DSD modes, and offers low distortion, wide dynamic range, and a post‑filter with switched‑capacitor technology.
The document provides a complete pin‑out, electrical and analog characteristics, absolute maximum ratings, recommended operating conditions, and handling instructions for unused pins. Revision history and important safety notices are also included. This manual is written in Japanese.
Covers: Overview · Features · Pin Configuration · Pin Functions · Unused Pin Handling · Absolute Maximum Ratings

Asahi Kasei AK2306/AK2306LV Datasheet
The AK2306/AK2306LV is a 2‑channel PCM codec designed for ISDN/VoIP terminal adapters. It integrates A‑law/µ‑law compression, gain adjustment, mute, power‑down, and a built‑in ring‑tone generator, supporting PCM data rates from 128 kHz to 4.096 MHz.
The document provides a block diagram, package pin configuration, pin functions, circuit description, mechanical dimensions, and important usage notices, enabling designers to implement the codec in various telecommunication systems. This manual is written in Japanese.
Covers: Block Diagram · Package Pinout · Pin Conditions · Pin Functions · Circuit Configuration · Package Dimensions
Latest AKM manuals
AKM AK93C85A 95A 10A 16K 32K 64Kbit Serial CMOS EEPROM
This is the user manual of Asahi Kasei AK93C85A/95A/10A 16K/32K/64Kbit Serial CMOS EEPROM.
AKM AKN62321A/62331A Series 131072-Word × 8-Bit CMOS Mask PrQgrammable ROM
search for AKN62331AF suppliers
AKM AKD5393 Data Sheet
The AKD5393 is an audio 24-bit A/D converter from ASAHI KASEI that includes a full-differential input buffer circuit and a digital interface transmitter. It can be used with AKM's DAC evaluation boards or with CS8402 as a DIT to transmit optical output.
AKM AK4351 Data Sheet
The AK4351 is a high cost performance 18bit stereo DAC for low-end digital audio systems. The modulator in the AK4351 uses the new developed Advanced Multi Bit architecture with wide dynamic range. The analog outputs are filtered in the analog domain by a combination of SCF and CTF. Therefore, any external filters are not required. The SCF techniques also improve the loss of accuracy from clock jitter. Therefore, the AK4351 is suitable for the system like STB including PLL circuit. The AK4351 is available in very small 16pin TSSOP package, which reduces system space.
AKM AK4524 Data Sheet
AK4524 is a 24bit 96kHz audio codec produced by Asahi Kasei. The chip has an enhanced dual-bit architecture ADC with a wide dynamic range and uses SCF technology to achieve low output noise and high jitter tolerance. AK4524 also has an input PGA and is suitable for MD, DVTR systems and musical instruments.
AKM AK4380 DATA SHEET
AK4380 is a high performance audio product that supports sampling rates from 8kHz to 96kHz and features 128x oversampling and 24-bit 8x FIR digital filters.
AKM AK4635 16-Bit Mono CODEC with ALC MIC/SPK/Video-AMP Data sheet
The AK4635 is a 16-bit mono CODEC with Microphone-Amplifier, Speaker-Amplifier, and Video-Amplifier. It is suitable for moving picture devices such as digital cameras. The product features recording function, playback function, and video function, and supports Piezo Speaker. The AK4635 is housed in a space-saving 29-pin Wafer Level CSP 2.5mm x 3.0mm package.
AKM AK93C45A 55A 65A 75A handbook
ASAHI KASEI [AK93C45A/55A/65A/75A] DAM01E-01 is a 1K/2K/4K/8K-bit serial CMOS EEPROM with wide operating voltage range and low power consumption. It is ideal for low density data storage and offers high reliability and automation features.
AKM AK4386 DATA SHEET
The AK4386 is a 24-bit low voltage & low power stereo DAC that uses the Advanced Multi-Bit ∆Σ architecture. This architecture achieves DR=100dB at 3V operation. The AK4386 integrates a combination of SCF and CTF filters increasing performance for systems with excessive clock jitter. The AK4386 is suitable for the portable audio system like MP3 and the home audio systems like STB and TV, etc as low power and small package. The AK4386 is offered in a space saving 16pin TSSOP package.
AKM AKD4393 Data Sheet
The AKD4393 is an evaluation board for AK4393, which is 96kHz sampling 24Bit ∆Σ DAC. The AKD4393 includes a LPF which can add differential analog outputs from the AK4393 and also has a digital interface with AKM’s wave generator using ROM data and AKM’s ADC evaluation boards. Therefore, it is easy to evaluate the AK4393.
AKM AK4358 192kHz 24-Bit 8ch DAC with DSD Input Manual
Asahi Kasei AK2307/LV Speech Codec Programming Manual
Programming Manual 39 pages · 448 KB · ENThe Asahi Kasei AK2307/LV speech codec programming manual provides specifications, pin assignments, register maps, and serial interface details for digital…
AKM AK4543 AC'97 Rev 2.1 Multimedia Audio CODEC Datasheet
Datasheet 31 pages · 391 KB · ENThe AKM AK4543 is an 18‑bit AC'97 Rev 2.1 multimedia audio CODEC with stereo inputs/outputs, low power consumption, and multiple codec support.
AKM AK4397 32‑Bit DAC Datasheet
Datasheet 37 pages · 564 KB · JAThe AKM AK4397 is a high‑performance 32‑bit DAC supporting 192 kHz PCM and DSD inputs, with detailed specifications and pin functions.
AKM AK4392 High Performance 120dB Premium 32-Bit DAC Manual
Which document do I need?
Programming Manual
Instruction set, parameters and examples for configuring or programming the device.
Datasheet
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in AKM manuals
What PCM data interface modes are available for the AK2307/LV?
The device supports four PCM data interface modes: A/u‑Law PCM, 16‑bit linear PCM, AK130 B1 mode, and AK130 B2 mode.
How are the internal registers accessed?
Registers are read and written via a serial CPU interface using the SCLK, DATA, and CSN pins; each transfer is a 16‑bit word with instruction, address, and data fields.
What is the ambient temperature range for operation?
The AK4543 operates from –10 °C to 70 °C ambient temperature.
From: AKM AK4543 AC'97 Rev 2.1 Multimedia Audio CODEC Datasheet
How many stereo inputs does the AK4543 provide?
It provides four stereo inputs: LINE, CD, VIDEO, and AUX.
From: AKM AK4543 AC'97 Rev 2.1 Multimedia Audio CODEC Datasheet
What sampling rates does the AK4397 support?
The device supports sampling rates from 30 kHz up to 216 kHz, including 192 kHz PCM and DSD modes.
How should unused pins be handled?
Unused input/output pins must be set as described in the document, either left open or connected to VSS4 according to the mode.
