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.