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TI的usb立体声音频编解码器 PCM2902E
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TI的usb立体声音频编解码器 PCM2902E
音频 > USB 音频 > USB 编解码器 >具有 USB 接口、单端输入/输出和 SPDI/F 的立体声音频编解码器

描述
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 architecture enable playback and record with low clock jitter and with independent playback and record sampling rates.

特性
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(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

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TI的usb立体声音频编解码器 PCM2902E
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