1FEATURES
23• Qualified for Automotive Applications
• 24-Bit Delta-Sigma Stereo A/D Converter
• Single-Ended Voltage Input: 3 Vp-p
• High Performance:
– THD + N: –93 dB (Typical)
– SNR: 99 dB (Typical)
– Dynamic Range: 99 dB (Typical)
• Oversampling Decimation Filter:
– Oversampling Frequency: ×64
– Pass-Band Ripple: ±0.05 dB
– Stop-Band Attenuation: –65 dB
– On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
• Flexible PCM Audio Interface
– Master/Slave Mode Selectable
– Data Formats: 24-Bit I2S, 24-Bit Left-
Justified
• Power Down and Reset by Halting System
Clock
• Analog Antialias LPF Included
• Sampling Rate: 8 kHz–96 kHz
• System Clock: 256 fS, 384 fS, 512 fS
• Dual Power Supplies:
– 5-V for Analog
– 3.3-V for Digital
• Package: 14-Pin TSSOP

DESCRIPTION
The PCM1808-Q1 is high-performance, low-cost,
single-chip, stereo analog-to-digital converter with
single-ended analog voltage input. The PCM1808-Q1
uses a delta-sigma modulator with 64-times
oversampling and includes a digital decimation filter
and high-pass filter that removes the dc component
of the input signal. For various applications, the
PCM1808-Q1 supports master and slave mode and
two data formats in serial audio interface.
The PCM1808-Q1 supports the power-down and
reset function by means of halting the system clock.
The PCM1808-Q1 is suitable for wide variety of costsensitive
consumer applications where good
performance and operation with a 5-V analog supply
and 3.3-V digital supply is required. The PCM1808-
Q1 is fabricated using a highly advanced CMOS
process and is available in a small, 14-pin TSSOP
package.