1 Features

1? 24-Bit Delta-Sigma Stereo A/D Converter

? Single-Ended Voltage Input: 3 Vp-p

? Oversampling Decimation Filter:

– Oversampling Frequency: ×64, ×128

– Pass-Band Ripple: ±0.05 dB

– Stop-Band Attenuation: –65 dB

– On-Chip High-Pass Filter: 0.84 Hz (44.1 kHz)

? High-Performance:

– THD+N: –95 dB (Typically)

– SNR: 103 dB (Typically)

– Dynamic Range: 103 dB (Typically)

? PCM Audio Interface:

– Master or Slave Mode Selectable

– Data Formats:

– 24-Bit Left-Justified

– 24-Bit I2S

– 20-, 24-Bit Right-Justified

? Sampling Rate: 16 kHz to 96 kHz

? System Clock: 256 fS, 384 fS, 512 fS, 768 fS

? Dual Power Supplies: 5 V for Analog, 3.3 V for

Digital

? Package: 20-Pin SSOP

2 Applications

? AV Amplifier Receivers

? MD Players

? CD Recorders

? Multitrack Receivers

? Electric Musical Instruments

3 Description

The PCM1803A device is high-performance, lowcost,

single-chip stereo analog-to-digital converter

with single-ended analog voltage input. The

PCM1803A uses a delta-sigma modulator with 64-

and 128-times oversampling, and includes a digital

decimation filter and high-pass filter, which removes

the DC component of the input signal. For various

applications, the PCM1803A supports master and

slave modes and four data formats in serial interface.

The PCM1803A is suitable for a wide variety of costsensitive

consumer applications where good

performance and operation from a 5-V analog supply

and 3.3-V digital supply are required. The PCM1803A

is fabricated using a highly-advanced CMOS process

and is available in a small 20-pin SSOP package.