AK4426

更新时间： 2024-11-18 07:16:11

品牌	Logo	应用领域
AKM		/
页数	文件大小	规格书
28页	447K
描述
192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

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AK4426 数据手册

[AK4426]

AK4426

192kHz 24-Bit Stereo ΔΣ DAC with 2Vrms Output

GENERAL DESCRIPTION

The AK4426 is a 5V 24-bit stereo DAC with an integrated 2Vrms output buffer. A charge pump in the

buffer develops an internal negative power supply rail that enables a ground-referenced 2Vrms output.

Using AKM’s multi bit modulator architecture, the AK4426 delivers a wide dynamic range while preserving

linearity for improved THD+N performance. The AK4426 integrates a combination of switched-capacitor

and continuous-time filters, increasing performance for systems with excessive clock jitter. The 24-bit

word length and 192kHz sampling rate make this part ideal for a wide range of consumer audio

applications, such as DVD, AV receiver system and set-top boxes. The AK4426 is offered in a space

saving 16pin TSSOP package.

FEATURES

Sampling Rate Ranging from 8kHz to 192kHz

128 times Oversampling (Normal Speed Mode)

64 times Oversampling (Double Speed Mode)

32 times Oversampling (Quad Speed Mode)

24-Bit 8 times FIR Digital Filter

Switched-Capacitor Filter with High Tolerance to Clock Jitter

Single Ended 2Vrms Output Buffer

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

Soft mute

Digital Attenuator (Linear 256 Step)

Control I/F: I²C-Bus

Audio I/F format: 24Bit MSB justified, 24/20/16 LSB justified or

I²S compatible

Master clock: 256fs, 384fs, 512fs, 768fs or 1152fs (Normal Speed Mode)

128fs, 192fs, 256fs or 384fs (Double Speed Mode)

128fs, 192fs (Quad Speed Mode)

THD+N: -91dB

Dynamic Range: 106dB

Automatic Power-on Reset Circuit

Power supply: +4.5 ∼ +5.5V

Ta = -40 to 85 °C

Small Package: 16pin TSSOP (6.4mm x 5.0mm)

MS1176-E-02

2011/03

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