[AK4344]

MS0641-E-01

2010/09

- 1 -

GENERAL DESCRIPTION

The AK4344 is a 24bit low voltage & low power stereo. The AK4344 uses the Advanced Multi-Bit

ΔΣ

architecture, which achieves DR=100dB at 3.3V operation. The AK4344 integrates a combination of SCF

and CTF filters increasing performance for systems with excessive clock jitter. The output voltage level

can be set as high as 1Vrms. The AK4344 is offered in a space saving 16pin TSSOP package.

FEATURES

Sampling Rate: 8kHz

∼ 96kHz

24-Bit 8 times FIR Digital Filter

SCF with high tolerance to clock jitter

Single-ended output buffer

Digital de-emphasis for 32kHz, 44.1kHz, 48kHz sampling

I/F Format: 24-Bit MSB justified, 16/24-Bit LSB justified, I

Master Clock:

512/768/1024/1536fs for Half Speed (8kHz

∼ 24kHz)

256/384/512/768fs for Normal Speed (8kHz

∼ 48kHz)

128/192/256/384fs for Double Speed (48kHz

∼ 96kHz)

µP Interface: 4-wire/3-wire

CMOS Input Level

THD+N: -90dB(0dB)

DR, S/N: 100dB

DAC output voltage level: 1Vrms (@VDD=3.3V)

Power Supply: 2.7 to 3.6V

Ta =

−20 ∼ 85°C

16pin TSSOP

100dB 96kHz 24-Bit Stereo 3.3V

ΔΣ DAC

AK4344