AK4122 datasheet(1/54 Pages) ETC

Part #	AK4122

Description	24 BIT 96KHZ SRC WITH DIR

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ASAHI KASEI

[AK4122]

MS0267-E-03

2004/08

- 1 -

GENERAL DESCRIPTION

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.

FEATURES

1. SRC

• 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 I2S compatible

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

• SRC Bypass mode

• Soft Mute Function

2. DIR

• 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

- 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

• 40-bit Channel Status Buffer

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

• Q-subcode Buffer for CD bit streams

3. 4-wire Serial

µP Interface

4. Power Supply

• AVDD: 3.0 ∼ 3.6V (typ. 3.3V)

• DVDD: 3.0 ∼ 3.6V (typ. 3.3V)

5. Ta =

−10 ∼ 70°C

6. Package : 48pin LQFP

24-Bit 96kHz SRC with DIR

AK4122

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AK4122 Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers

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