TI PCM3000E/2K

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 modulation 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.

• Monolithic 18-Bit ∆Σ 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

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