ak4367 AKM Semiconductor, Inc., ak4367 Datasheet

ak4367

Manufacturer Part Number

ak4367

Description

Low Power 24-bit 2ch Dac With Hp-amp & Output Mixer

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4367.pdf (38 pages)

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ASAHI KASEI

The AK4367 is 24bit DAC with built-in Headphone Amplifier. The AK4367 features an analog mixing

circuit that allows easy interfacing in mobile phone and portable communication designs. The integrated

headphone amplifier features “pop-free” power-on/off, a mute control and delivers 50mW of power at

16Ω. The AK4367 is housed in a 20pin QFN package, making it suitable for portable applications.

MS0247-E-02

Low Power 24-Bit 2ch DAC with HP-AMP & Output Mixer

Multi-bit ∆Σ DAC

Sampling Rate: 8kHz∼48kHz

64x Oversampling

On chip perfect filtering 8 times FIR interpolator

Digital De-emphasis Filter: 32kHz, 44.1kHz and 48kHz

System Clock: 256fs/384fs/512fs

Audio I/F Format: MSB First, 2’s Compliment

Analog Mixing Circuit

Mono Lineout

µP Interface: 3-wire/I

Bass Boost Function

Headphone Amplifier

Power Supply: 2.2V ∼ 3.6V

Power Supply Current: 2.8mA@2.4V (@HP-AMP no-output)

Ta: − 40 ∼ 85°C

Small Package: 20pin QFN

Digital ATT

- Passband: 20kHz

- Passband Ripple: ±0.02dB

- Stopband Attenuation: 54dB

- I

- Output Power: 50mW x 2ch @16Ω, 3.3V

- S/N: 92dB@2.4V

- Pop Noise Free at Power-ON/OFF and Mute

- AC Couple Input Available

S, 24bit MSB justified, 24bit/20bit/16bit LSB justified

GENERAL DESCRIPTION

FEATURE

- 1 -

AK4367

[AK4367]

2005/10

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