PCM2902BDB集成电路（IC）的编解码器规格书PDF中文资料

PCM2902BDB属于集成电路（IC）的编解码器。由德州仪器制造生产的PCM2902BDB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

234· PCM2900B: Without S/PDIF

· PCM2902B: With S/PDIF

· On-Chip USB Interface:

– With Full-Speed Transceivers

– Fully Compliant with USB 2.0 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 (V BUS)

· Stereo ADC:

– Analog Performance at V BUS = 5 V:

– THD+N = 0.01%

– SNR = 89 dB

– Dynamic Range = 89 dB

– Decimation Digital Filter:

– Passband Ripple = ±0.05 dB

– Stop-Band Attenuation = 65 dB

– Single-Ended Voltage Input

– Antialiasing Filter Included

– Digital HPF Included

· Stereo DAC:

– Analog Performance at VBUS = 5 V:

– THD+N = 0.005%

– SNR = 96 dB

– Dynamic Range = 93 dB

– Oversampling Digital Filter:

– Passband Ripple = ±0.1 dB

– Stop-Band Attenuation = –43 dB

– Single-Ended Voltage Output

– Analog LPF Included

· Multifunctions:

– Human Interface Device (HID) Function:

– Volume and Mute Controls

– Suspend Flag Function

· 28-Pin SSOP Package

APPLICATIONS

· USB Audio Speaker

· USB Headset

· USB Monitor

· USB Audio Interface Box

DESCRIPTION

The PCM2900B/2902B is Texas Instruments'

single-chip, USB, stereo audio codec with a

USB-compliant full-speed protocol controller and

S/PDIF (PCM2902B only). The USB protocol controller requires no software code, but the USB

descriptors can be modified in some areas (for

example, vendor ID and/or product ID). The

PCM2900B/2902B employs SpAct™ architecture, TI's

unique system that recovers the audio clock from

USB packet data. On-chip analog PLLs with SpAct

architecture enable playback and record with low

clock jitter as well as independent playback and

record sampling rates.