AK4118AEQ

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AK4118AEQ

IC AUDIO TRANSCEIVER 48LQFP

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規格

Supplier Asahi Kasei Microdevices/AKM
Package Tape & Reel (TR),Cut Tape (CT)
ProductStatus Active
Function Audio Transceiver
Applications Digital Audio Interfacing
NumberofChannels 8
Interface I²C, SPI
Voltage-Supply 2.7V ~ 3.6V
OperatingTemperature 0°C ~ 70°C (TA)
Specifications 8kHz ~ 192kHz
MountingType Surface Mount
Package/Case 48-LQFP

概述

Description

AK4118AEQ is a high‑performance stereo digital‑to‑analog converter (DAC) IC from Asahi Kasei Microdevices (AKM). It receives PCM digital audio data (up to 24‑bit, up to 192 kHz) over standard serial formats (I2S/Left‑Justified/Right‑Justified), performs digital filtering and DAC conversion, and outputs two analog channels via external I/V circuitry. The AEQ suffix denotes a specific package/grade for this part. Typical applications include CD/DVD players, high‑end audio DAC boards, Blu‑ray/AV receivers, and professional audio interfaces. Features often cited include low jitter tolerance, soft‑mute, de‑emphasis handling, and I2C/SPI control for status and configuration. In short: it is the digital front end DAC that converts digital audio data to clean analog audio for amplification.

Features

Key features of AK4118AEQ (digital audio interface receiver):
- 24-bit resolution, supports sampling rates from about 32 kHz to 192 kHz
- S/PDIF receiver with jitter reduction via built-in clock/data recovery PLL
- Supports both coaxial (RCA) and optical (Toslink) S/PDIF inputs
- I2S/Left-justified (MSB-first) digital audio output
- Automatic input format detection; no external clock required
- De-emphasis support and soft mute for pop-noise suppression on power-up/down
- Low-noise, low-power design suitable for consumer electronics
Note: Specific package/mechanical details vary by variant (AEQ).

Package

Plastic 28-pin LQFP (quad-flat package).

Pinout

- Pin count: 48 pins (LQFP package, AK4118AEQ)
- Function: Digital audio interface bridge IC (S/PDIF receiver/clock recovery and PCM data bridge to I2S) used to convert SPDIF/PCM digital audio data into an I2S-compatible stream for downstream DAC/processing.

Manufacturer

- Manufacturer: Asahi Kasei Microdevices Corporation (AKM).
- What kind of company: A Japanese semiconductor company that designs and manufactures analog, digital, and mixed-signal ICs, notably audio ICs (DACs/ADCs, codecs, digital interfaces). It is a subsidiary of the Asahi Kasei Corporation.

Application

- Consumer AV equipment: CD/DVD/Blu-ray players, DAC modules, AV receivers, soundbars
- Set-top boxes and game consoles
- Automotive infotainment and in-car audio
- Professional audio interfaces and recording/production gear

Equivalent

AK4118AEQ is a S/PDIF/IEC-60958 receiver with I2S outputs. There isn’t an exact drop‑in equivalent. Similar parts include Cirrus Logic CS8416 and CS8420, and Wolfson WM8804/WM8805—SPDIF receivers with I2S outputs. When selecting, verify 24-bit / 192 kHz support and AES/EBU compatibility, and check pinouts for a proper fit.

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