GENERAL DESCRIPTION

The AK4345 is a 24bit low voltage and low power stereo DAC with an integrated Digital Audio Interface Transmitter. The AK4345 usesan Advanced Multi-Bit ΔΣarchitecture, which achieves 100dB dynamic range at 3.3V operation. The AK4345 integrates both switched-capacitor and continuous time filters, enabling performance for systems that have excessive clock jitter. The output voltage level can be set as high as 1Vrms. The AK4345 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, I2S Compatible

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

DIT Bypass mode

CMOS Input Level

THD+N: -90dB

DR, S/N: 100dB

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

DIT

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

- 1-channel Transmission output

- 42-bit Channel Status Buffer

Power Supply: 2.7 to 3.6V

Ta = −20 ∼ 85°C

16pin TSSOP