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.
● 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
●System Two, Audio Precision are trademarks of Audio Precision, Inc.
●All other trademarks are the property of their respective owners.
