ak4122 AKM Semiconductor, Inc., ak4122 Datasheet

ak4122

Manufacturer Part Number

ak4122

Description

24-bit 96khz Src With Dir

Manufacturer

AKM Semiconductor, Inc.

Datasheet

1.AK4122.pdf (54 pages)

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ASAHI KASEI

The AK4122 is a digital sample rate converter (SRC) with the digital audio receiver (DIR). The input

sample rate ranges from 8kHz to 96kHz. The output sample rate is 32kHz, 44.1kHz, 48kHz or 96kHz. By

using the AK4122, the system can take very simple configuration because the AK4122 has an internal

PLL and does not need any master clock at slave mode. Then the AK4122 is suitable for the application

interfacing to different sample rates like Car Audio, DVD recorder, etc.

MS0267-E-03

1. SRC

2. DIR

3. 4-wire Serial µP Interface

4. Power Supply

5. Ta = −10 ∼ 70°C

6. Package : 48pin LQFP

• Asynchronous Sample Rate Converter

• Input Sample Rate Range (fsi) : 8kHz ∼ 96kHz

• Output Sample Rate (fso) : 32kHz, 44.1kHz, 48kHz, 96kHz

• Input to Output Sample Rate Ratio : 0.33 to 6

• THD+N : −113dB

• I/F format : MSB justified, LSB justified (16/24bit) and I

• Clock for Master mode : 256/384/512/768fs

• SRC Bypass mode

• Soft Mute Function

• 4-Channel Inputs Selector & 1-Channel Through Output

• AES3, IEC60958, S/PDIF, EIAJ CP1201 Compatible

• Low Jitter Analog PLL

• PLL Lock Range : 32kHz ∼ 96kHz

• Auto detection

• 40-bit Channel Status Buffer

• Burst Preamble bit Pc, Pd Buffer for Non-PCM bit streams

• Q-subcode Buffer for CD bit streams

• AVDD: 3.0 ∼ 3.6V (typ. 3.3V)

• DVDD: 3.0 ∼ 3.6V (typ. 3.3V)

- Non-PCM Bit Stream

- DTS-CD Bit Stream

- Validity Flag

- Sampling Frequency (32kHz, 44.1kHz, 48kHz, 88.2kHz, 96kHz)

- Unlock & Parity Error

- DAT Start ID

GENERAL DESCRIPTION

FEATURES

- 1 -

24-Bit 96kHz SRC with DIR

S compatible

AK4122

[AK4122]

2004/08

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