PCM2912A

現行

具 USB 介面、單聲道麥克風輸入和立體聲道耳機輸出的音訊轉碼器

立即訂購

產品規格表

document-pdfAcrobat PCM2912A Audio Codec With USB Interface, Mono Microphone Input and Stereo Headphone Output datasheet (Rev. A) (英文) PDF | HTML

PCM2912A

現行

產品規格表

立即訂購

產品詳細資料

Number of ADC channels

1

Number of DAC channels

2

Control interface

H/W

Analog inputs

1

Analog outputs

2

Features

Mic bias, PGAs, Sidetone, USB interface

Sampling rate (max) (kHz)

48

Rating

Catalog

Operating temperature range (°C)

-25 to 85

Number of ADC channels

1

Number of DAC channels

2

Control interface

H/W

Analog inputs

1

Analog outputs

2

Features

Mic bias, PGAs, Sidetone, USB interface

Sampling rate (max) (kHz)

48

Rating

Catalog

Operating temperature range (°C)

-25 to 85

TQFP (PJT)

32

81 mm² (9 mm × 9 mm)

On-Chip USB Interface:
- With Full-Speed Transceivers
- Fully Compliant With USB 2.0 Specification
- Certified By USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Asynchronous-Isochronous Transfer for
  Record
- Bus Powered
16-Bit Delta-Sigma ADC and DAC
Sampling Rate:
- 8, 11.025, 16, 22.05, 32, 44.1, or 48 kHz
On-Chip Clock Generator:
- With Single 6-MHz Clock Source
Mono ADC with Microphone Input
- Analog Performance at V_BUS = 5 V:
  - THD+N: 0.01%
  - SNR: 92 dB
  - Dynamic Range: 90 dB
- Decimation Digital Filter
  - Passband Ripple: ±0.05 dB
  - Stop-Band Attenuation: –65 dB
- Single-Ended Voltage Input
- Antialiasing Filter Included
- Digital HPF Included
- Microphone Bias, Microphone Amplifier, and
  Input PGA
Stereo DAC With Headphone Output
- Analog Performance at V_BUS = 5.0 V:
  - THD+N: 0.01% (R_L > 10 kΩ)
  - THD+N: 0.02% (R_L = 32 Ω)
  - SNR: 92 dB
  - Dynamic Range: 90 dB
  - PO: 13 mW (R_L = 32 Ω)
  - PO: 25 mW (R_L = 16 Ω)
- Oversampling Digital Filter
  - Passband Ripple: ±0.1 dB
  - Stop-Band Attenuation: –43 dB
  - Single-Ended Voltage Output
  - Analog LPF Included
  - Sidetone PGA, Output PGA, and HP
    Amplifier
Multifunctions:
- Suspend, Playback, and Record Status Flag
- Microphone Amplifier, Mute, and Gain Control
Pop/Click Noise-Free
Single Power-Supply: 5 V Typical (V_BUS)
Package: 32-Pin TQFP

On-Chip USB Interface:
- With Full-Speed Transceivers
- Fully Compliant With USB 2.0 Specification
- Certified By USB-IF
- Partially Programmable Descriptors
- Adaptive Isochronous Transfer for Playback
- Asynchronous-Isochronous Transfer for
  Record
- Bus Powered
16-Bit Delta-Sigma ADC and DAC
Sampling Rate:
- 8, 11.025, 16, 22.05, 32, 44.1, or 48 kHz
On-Chip Clock Generator:
- With Single 6-MHz Clock Source
Mono ADC with Microphone Input
- Analog Performance at V_BUS = 5 V:
  - THD+N: 0.01%
  - SNR: 92 dB
  - Dynamic Range: 90 dB
- Decimation Digital Filter
  - Passband Ripple: ±0.05 dB
  - Stop-Band Attenuation: –65 dB
- Single-Ended Voltage Input
- Antialiasing Filter Included
- Digital HPF Included
- Microphone Bias, Microphone Amplifier, and
  Input PGA
Stereo DAC With Headphone Output
- Analog Performance at V_BUS = 5.0 V:
  - THD+N: 0.01% (R_L > 10 kΩ)
  - THD+N: 0.02% (R_L = 32 Ω)
  - SNR: 92 dB
  - Dynamic Range: 90 dB
  - PO: 13 mW (R_L = 32 Ω)
  - PO: 25 mW (R_L = 16 Ω)
- Oversampling Digital Filter
  - Passband Ripple: ±0.1 dB
  - Stop-Band Attenuation: –43 dB
  - Single-Ended Voltage Output
  - Analog LPF Included
  - Sidetone PGA, Output PGA, and HP
    Amplifier
Multifunctions:
- Suspend, Playback, and Record Status Flag
- Microphone Amplifier, Mute, and Gain Control
Pop/Click Noise-Free
Single Power-Supply: 5 V Typical (V_BUS)
Package: 32-Pin TQFP

The PCM2912A is the Texas Instruments single-chip, USB stereo audio codec with a USB, 2.0-compliant, full-speed protocol controller and an analog front-end (AFE) function for headset applications.

The USB protocol controller works with no software code, but USB descriptors can be modified on request. The PCM2912A employs SpAct™ architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enables independent playback and record sampling rates with low clock jitters.

The PCM2912A is the Texas Instruments single-chip, USB stereo audio codec with a USB, 2.0-compliant, full-speed protocol controller and an analog front-end (AFE) function for headset applications.

The USB protocol controller works with no software code, but USB descriptors can be modified on request. The PCM2912A employs SpAct™ architecture, TI’s unique system that recovers the audio clock from USB packet data. On-chip analog PLLs with SpAct enables independent playback and record sampling rates with low clock jitters.

filter

尋找其它音訊轉碼器

下載觀看有字幕稿的影片影片

技術文件

找不到結果。請清除您的搜尋條件，然後再試一次。

檢視所有 4

重要文件	類型	標題	格式選項	日期
*	資料表	PCM2912A Audio Codec With USB Interface, Mono Microphone Input and Stereo Headphone Output datasheet (Rev. A)	PDF \| HTML	2015/8/25
*	勘誤表	Application Information for Difference Between PCM2912A and PCM2912		2008/11/25
	應用說明	Operating Environments for PCM2912A Applications (Rev. A)		2016/11/10
	應用說明	Solving Enumeration Errors in USB Audio DAC and CODEC Designs		2009/10/30

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

DEM-PCM2912AEVM — DEM-PCM2912AEVM 評估模組

DEM-PCM2912A EVM 是完整的評估平台，適用於具有 USB 介面的 16 位元、單聲道麥克風輸入和立體聲耳機輸出 PCM2912A 匯流排供電音訊編解碼器。提供所有必要的連接器和電路，以介接音訊測試系統和商業音訊設備。

DEM-PCM2912A EVM 上裝有 USB 連接器。兩個立體聲迷你插孔提供立體聲音訊輸出和單聲道音訊輸入。PCM2912A 是一款配備 USB 介面的音訊編解碼器，適用於 USB 頭戴式耳機、USB 耳機，以及整合單聲道輸入、立體聲耳機輸出、類比回送線路、可編程增益放大器 (PGA) 及麥克風偏壓的 USB 音訊介面盒。其採用 32 接腳 TQFP 封裝。

(...)

使用指南: PDF | HTML

支援產品和硬體

有庫存

限制：

登入以進行訂購

lock

登入以檢視庫存

??asset.out-of-stock-ti_zh_TW??

無法提供

封裝	針腳	CAD 符號、佔位空間與 3D 模型
TQFP (PJT)	32	Ultra Librarian

適用 TI 的評估品項標準條款與條件。

PCM2912A

具 USB 介面、單聲道麥克風輸入和立體聲道耳機輸出的音訊轉碼器

PCM2912A

產品詳細資料

技術文件

設計與開發

DEM-PCM2912AEVM — DEM-PCM2912AEVM 評估模組

訂購與品質

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

影片系列

影片