1FEATURES

234• Qualified for Automotive Applications

• Enhanced Multi-Level Delta-Sigma DAC:

– High Performance: Differential, fS = 48 kHz

– THD+N: –94 dB

– SNR: 113 dB

– Dynamic Range: 113 dB

– Sampling Rate: 8 kHz to 192 kHz

– System Clock: 128 fS, 192 fS, 256 fS, 384 fS,

512 fS, 768 fS, 1152 fS – Differential Voltage Output: 8 V PP

– Analog Low-Pass Filter Included

– 4x/8x Oversampling Digital Filter:

– Passband Ripple: ±0.0018 dB

– Stop Band Attenuation: –75 dB

– Zero Flags (16-/20-/24-Bits)

• Flexible Audio Interface:

– I/F Format: I2S™, Left-/Right-Justified, DSP

– Data Length: 16, 20, 24, 32 Bits

• Flexible Mode Control:

– 3-Wire SPI™, 2-Wire I2C™-Compatible

Serial Control Interface, or

Hardware Control

– Connect Up To 4 Devices on One SPI Bus

• Multi Functions via SPI or I2C I/F:

– Audio I/F Format Select: I2S, Left-Justified,

Right-Justified, DSP

– Digital Attenuation and Soft Mute

– Digital De-Emphasis: 32 kHz, 44.1 kHz,

48 kHz

– Data Polarity Control

– Power-Save Mode

• Multi Functions via Hardware Control:

– Audio I/F Format Select: I2S, Left-Justified

– Digital De-Emphasis Filter: 44.1 kHz

• Analog Mute by Clock Halt Detection

• External Reset Pin

• Power Supplies:

– 5 V for Analog and 3.3 V for Digital

• Package: TSSOP-24

• Operating Temperature Range:

– –40°C to +105°C

APPLICATIONS

• AV Receivers

• Car Audio External Amplifiers

• Car Audio AVN Applications

DESCRIPTION

The PCM1789-Q1 is a high-performance, single-chip,

24-bit, stereo, audio digital-to-analog converter (DAC)

with differential outputs. The two-channel, 24-bit DAC

employs an enhanced multi-level, delta-sigma (ΔΣ)

modulator, and supports 8 kHz to 192 kHz sampling

rates and a 16-/20-/24-/32-bit width digital audio input

word on the audio interface. The audio interface of

PCM1789-Q1 supports a 24-bit, DSP format in

addition to I2S, left-justified, and right-justified

formats.

The PCM1789-Q1 can be controlled through a

three-wire, SPI-compatible or two-wire,

I2C-compatible serial interface in software, which

provides access to all functions including digital

attenuation, soft mute, de-emphasis, and so forth.

Also, hardware control mode provides two

user-programmable functions through two control pins. The PCM1789-Q1 is available in a 24-pin

TSSOP package.