PCM2904DBR集成电路（IC）的编解码器规格书PDF中文资料

PCM2904DBR属于集成电路（IC）的编解码器。由德州仪器制造生产的PCM2904DBR编解码器编解码器是用于通过压缩和解压缩来转换数据的半导体器件。数据压缩可提高传输速度并减少存储空间。某些编解码器提供高达 32 位的分辨率，并且分别提供多达 6 个或 8 个模数转换器和数模转换器。除三角积分调制外，还有 I2C、I2S、SPI、串行、HDA、S/DIF、PCM、USB、AC'97 和 SLIMbus 数据接口。

1FEATURES

23· PCM2904: Without S/PDIF

· PCM2906: 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 (1)

– 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 Typical (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

APPLICATIONS

· USB Audio Speaker

· USB Headset

· USB Monitor

· USB Audio Interface Box

DESCRIPTION

The PCM2904/2906 is Texas Instruments single-chip

USB stereo audio codec with USB-compliant

full-speed protocol controller and S/PDIF (PCM2906

only). The USB protocol controller works with no

software code, but the USB descriptors can be

modified in some areas (for example, vendor

ID/product ID). The PCM2904/2906 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.