1FEATURES

23· 24-Bit Delta-Sigma Stereo A/D Converter

· High Performance:

– Dynamic Range: 112 dB (Typical)

– SNR: 111 dB (Typical)

– THD+N: –102 dB (Typical)

· High-Performance Linear Phase Antialias

Digital Filter:

– Pass-Band Ripple: ±0.005 dB

– Stop-Band Attenuation: –100 dB

· Fully Differential Analog Input: ±2.5 V

· Audio Interface: Master- or Slave-Mode

Selectable

· Data Formats: Left-Justified, I2S, Standard

24-Bit, and DSD

· Function:

– Peak Detection

– High-Pass Filter (HPF): –3 dB at 1 Hz,

fS = 48 kHz

· Sampling Rate up to 192 kHz

· System Clock: 128 fS, 256 fS, 384 fS,

512 fS, or 768 fS

· Dual Power Supplies:

– 5 V for Analog

– 3.3 V for Digital

· Power Dissipation: 225 mW

· Small 28-Pin SSOP

· DSD Output: 1 Bit, 64 fS

APPLICATIONS

· AV Amplifier

· MD Player

· Digital VTR

· Digital Mixer

· Digital Recorder

DESCRIPTION

The PCM1804 is a high-performance, single-chip stereo A/D converter with fully differential analog

voltage input. The PCM1804 uses a precision

delta-sigma modulator and includes a linear phase

antialias digital filter and high-pass filter (HPF) that

removes dc offset from the input signal. The PCM1804 is suitable for a wide variety of mid- to

high-grade consumer and professional applications,

where excellent performance and 5-V analog supply

and 3.3-V digital power-supply operation are required.

The PCM1804 can achieve both PCM audio and DSD format due to the precision delta-sigma

modulator. The PCM1804 is fabricated using an

advanced CMOS process and is available in a small

28-pin SSOP package.