ak4342 AKM Semiconductor, Inc., ak4342 Datasheet

ak4342

Manufacturer Part Number

ak4342

Description

24-bit Stereo Dac With Hp-amp & 2v Line-out

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4342.pdf (43 pages)

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Company:

Bonase Electronics (HK) Co., Limited

Part Number:

ak4342EN

Manufacturer:

SILICON

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H&T Electronics

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ASAHI KASEI

The AK4342 is a 24-bit stereo DAC with 2Vrms lineout, an integrated headphone amplifier, and an

auxiliary line output. The AK4342 features an analog mixing circuit that enables a simple interface to

external analog audio sources. The integrated headphone amplifier features “click-free” power-on/off, a

mute control and delivers 62.5mW of power at 16Ω @ 3.3V. The AK4342 is controlled via an I

interface, and is available in a 32-pin QFN package.

MS0506-E-02

Multi-bit 24-bit ∆Σ DAC

Sampling Rate: 8kHz to 96kHz

8 times Oversampling FIR interpolator

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

Master Clock:

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

Analog volume control:

Analog Mixing Circuit

µP Interface: 3-wire/I

DAC Performance (Lineout)

DAC Performance (Aux-Out)

Headphone Amplifier (Cap-less)

Power Supply:

Power Supply Current: 30.5mA (Headphone amp off)

Ta: − 30 ∼ 85°C

Package: 32pin QFN

Digital Linear Attenuator

Digital Soft Mute

Pop Noise Free at Power-ON/OFF and Mute

24-Bit Stereo DAC with HP-AMP & 2V Line-Out

- Passband: 20kHz

- Passband Ripple: ±0.02dB

- Stopband Attenuation: 54dB

- I

- Normal Speed Mode: 256fs/384fs/512fs/768fs

- Double Speed Mode: 128fs/192fs/256fs/384fs

- Half Speed Mode: 512fs/768fs

- Headphone: +6dB to – 48dB, Variable Step Size

- Lineout: 0dB to – 31dB, 1dB step

- THD+N: -88dB

- Dynamic Range: 100dB

- Output Level: 2Vrms

- THD+N: -87dB

- Dynamic Range: 95dB

- Output Power: 62.5mW x 2ch @16Ω, 3.3V

- THD+N: -60dB @ 25mW

- Dynamic Range: 95dB

- DAC & Output Buffers: 2.7V ∼ 3.6V

- Digital Interface: 1.6V ∼ 3.6V

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

GENERAL DESCRIPTION

FEATURE

C (400kHz mode)

- 1 -

AK4342

C or 3-wire

[AK4342]

2006/07

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