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.

• Number of ADC channels
• 2
• Analog inputs
• 2
• Digital audio interface
• DSP, I2S, L, R
• Control interface
• H/W
• Sampling rate (Max) (kHz)
• 192
• ADC SNR (Typ) (dB)
• 112
• Rating
• Catalog

PCM1804的完整型号有：PCM1804DB、PCM1804DBR，以下是这些产品的关键参数及官网采购报价：

PCM1804DB，工作温度：-10 to 70，封装：SSOP (DB)-28，包装数量MPQ：47个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCM1804DB的批量USD价格：3.017（1000+）

PCM1804DBR，工作温度：-10 to 70，封装：SSOP (DB)-28，包装数量MPQ：2000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：NIPDAU，TI官网PCM1804DBR的批量USD价格：2.514（1000+）

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