FEATURES
· Monolithic 18-Bit DS ADC and DAC
· 16- or 18-Bit Input/Output Data
· Accepts Seven Alternate Formats
· Stereo ADC:
– Single-Ended Voltage Input
– 64´ Oversampling Digital Filter
· Pass-Band Ripple: ±0.05 dB
· Stop-Band Attenuation: –65 dB
– High Performance:
· THD+N: –88 dB
· SNR: 94 dB
· Dynamic Range: 94 dB
– Digital High-Pass Filter
· Stereo DAC
– Single-Ended Voltage Outut
– Analog Low-Pass Filter
– 8´ Oversampling Digital Filter
· Pass-Band Ripple: ±0.17 dB
· Stop-Band Attenuation: 35 dB
– High Performance:
· THD+N: –90 dB
· SNR: 98 dB
· Dynamic Range: 97 dB
· Special Features (PCM3000)
– Digital De-Emphasis
– Digital Attenuation (256 Steps)
– Soft Mute
– Digital Loopback
· Sample Rate: 4 kHz to 48 kHz
· System Clock: 256 fs, 384 fs, 512 fs
· Single 5-V Power Supply
· Small Package: SSOP-28

APPLICATIONS
· Sampling Keyboards
· Digital Mixers
· Mini-Disk Recorders
· Hard-Disk Recorders
· Karaoke Systems
· DSP-Based Car Stereo
· DAT Recorders
· Video Conferencing

DESCRIPTION
The PCM3000/3001 is a low-cost, single-chip stereo
audio codec (analog-to-digital and digital-to-analog
converter) with single-ended analog voltage input and
output.
Both ADCs and DACs employ delta-sigma modu-
lation with 64-times oversampling. The ADCs include
a digital decimation filter and the DACs include an
8-times oversampling digital interpolation filter. The
DACs also include digital attenuation, de-emphasis,
infinite zero detection and soft mute to form a
complete subsystem. The PCM3000/3001 operates
with left-justified, right-justified, I2S or DSP data
formats.
The PCM3000 can be programmed with a three-wire
serial interface for special features and data formats.
The PCM3001 can be pin-programmed for data
formats.
The PCM3000 and PCM3001 are fabricated using a
highly advanced CMOS process and are available in
a small 28-pin SSOP package. The PCM3000/3001
are suitable for a wide variety of cost-sensitive
consumer applications where good performance is
required.