ak4371 AKM Semiconductor, Inc., ak4371 Datasheet

ak4371

Manufacturer Part Number

ak4371

Description

Dac With Built-in Pll & Hp-amp

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4371.pdf (62 pages)

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Quantity

Price

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BOSTOCK HK LIMITED

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ASAHI

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Download datasheet (866Kb)

The AK4371 is a 24-bit DAC with an integrated PLL and headphone amplifier. The PLL input frequency is

synchronized to typical mobile phone clock frequencies. The AK4371 features an analog mixing circuit

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

headphone amplifier features “pop-noise free” power-on/off, a mute control, and it delivers 40mW of

power into 16Ω. The AK4371 is packaged in a 32-pin QFN (4mm×4mm) package, ideal for portable

applications.

MS0596-E-00

Multi-bit ΔΣ DAC

Sampling Rate

On chip perfect filtering 8 times FIR interpolator

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

System Clock

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

Digital Mixing: LR, LL, RR, (L+R)/2

Bass Boost Function

Digital ATT

Analog Mixing Circuit: 6 Inputs (Single-ended or Full-differential)

Stereo Lineout

Mono Hands-free Output

Headphone Amplifier

μ P Interface: 3-wire/I

Power Supply: 1.6V ∼ 3.6V

Power Supply Current: 3.8mA @1.8V (6.8mW, DAC+HP, No output)

Ta: − 30 ∼ 85°C

Small Package: 32pin QFN (4mm x 4mm, 0.4mm pitch)

- Output Power: 0.8mW @ 600Ω 3.3V

- Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step

- 8kHz, 11.025kHz, 12kHz, 16kHz, 22.05kHz, 24kHz, 32kHz, 44.1kHz and 48kHz

- Passband: 20kHz

- Passband Ripple: ±0.02dB

- Stopband Attenuation: 54dB

- PLL Mode (MCKI): 27MHz, 26MHz, 19.8MHz, 19.68MHz, 19.2MHz, 15.36MHz,

- PLL Mode (BICK or LRCK): 64fs, 32fs or fs

- EXT Mode: 256fs/384fs/512fs/768fs/1024fs

- Input Level: AC Couple Input Available

- I

- Master/Slave Mode

- S/N: 90dB@3.3V

- Output Volume: +6 to –24dB (or 0 to –30dB), 2dB step

- Output Power: 40mW x 2ch @16Ω, 3.3V

- S/N: 92dB@3.3V

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

- Output Volume: 0 ~ –63dB & +12/+6/0 dB Gain

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

1.5dB step (0 ~ –30dB), 3dB step (–30 ~ –63dB)

GENERAL DESCRIPTION

14.4MHz, 13MHz, 12MHz and 11.2896MHz

FEATURE

DAC with built-in PLL & HP-AMP

- 1 -

AK4371

[AK4371]

2007/04

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