PCM2900数据手册集成电路（IC）的编解码器规格书PDF

描述 Description

DESCRIPTION
The PCM2900/2902 is Texas Instruments single-chip USB stereo audio codec with USB-compliant full-speed protocol controller and S/PDIF (only PCM2902). The USB protocol controller works with no software code, but the USB descriptors can be modified in some areas (e.g., vendor ID/product ID). The PCM2900/2902 employs SpAct architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enable playback and record with low clock jitter and with independent playback and record sampling rates.FEATURES
● PCM2900: Without S/PDIF
● PCM2902: With S/PDIF
● On-Chip USB Interface:
   − With Full-Speed Transceivers
   − Fully Compliant With USB 1.1
      Specification
   − Certified by USB-IF
   − Partially Programmable Descriptors

   − USB Adaptive Mode for Playback
   − USB Asynchronous Mode for Record
   − Bus Powered
● 16-Bit Delta Sigma ADC and DAC
● Sampling Rate:
   − DAC: 32, 44.1, 48 kHz
   − ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
● On-Chip Clock Generator:
   − With Single 12-MHz Clock Source
● Single Power Supply: 5 V TYP (VBUS)
● Stereo ADC
   − Analog Performance at VBUS = 5 V
      − THD+N = 0.01%
      − SNR = 89 dB
      − Dynamic Range = 89 dB
   − Decimation Digital Filter
      − Pass-Band Ripple = ±0.05 dB
      − Stop-Band Attenuation = –65 dB
   − Single-Ended Voltage Input
   − Antialiasing Filter Included
   − Digital LCF Included
● Stereo DAC
− Analog Performance at VBUS = 5 V
   − THD+N = 0.005%
   − SNR = 96 dB
   − Dynamic Range = 93 dB
− Oversampling Digital Filter
   − Pass-Band Ripple = ±0.1 dB
   − Stop-Band Attenuation = –43 dB
− Single-Ended Voltage Output
− Analog LPF Included
● Multifunctions:
   − Human Interface Device (HID) Volume ±
      Control and Mute Control
   − Suspend Flag
● Package: 28-Pin SSOPAPPLICATIONS
● USB Audio Speaker
● USB Headset
● USB Monitor
● USB Audio Interface Box

特性 Features

● PCM2900: Without S/PDIF
● PCM2902: With S/PDIF
● On-Chip USB Interface:
   − With Full-Speed Transceivers
   − Fully Compliant With USB 1.1
      Specification
   − Certified by USB-IF
   − Partially Programmable Descriptors

   − USB Adaptive Mode for Playback
   − USB Asynchronous Mode for Record
   − Bus Powered
● 16-Bit Delta Sigma ADC and DAC
● Sampling Rate:
   − DAC: 32, 44.1, 48 kHz
   − ADC: 8, 11.025, 16, 22.05, 32, 44.1, 48 kHz
● On-Chip Clock Generator:
   − With Single 12-MHz Clock Source
● Single Power Supply: 5 V TYP (VBUS)
● Stereo ADC
   − Analog Performance at VBUS = 5 V
      − THD+N = 0.01%
      − SNR = 89 dB
      − Dynamic Range = 89 dB
   − Decimation Digital Filter
      − Pass-Band Ripple = ±0.05 dB
      − Stop-Band Attenuation = –65 dB
   − Single-Ended Voltage Input
   − Antialiasing Filter Included
   − Digital LCF Included
● Stereo DAC
− Analog Performance at VBUS = 5 V
   − THD+N = 0.005%
   − SNR = 96 dB
   − Dynamic Range = 93 dB
− Oversampling Digital Filter
   − Pass-Band Ripple = ±0.1 dB
   − Stop-Band Attenuation = –43 dB
− Single-Ended Voltage Output
− Analog LPF Included
● Multifunctions:
   − Human Interface Device (HID) Volume ±
      Control and Mute Control
   − Suspend Flag
● Package: 28-Pin SSOP

应用 Application

● USB Audio Speaker
● USB Headset
● USB Monitor
● USB Audio Interface Box