PCM2912A

Name: PCM2912A
Brand: TI
SKU: PCM2912A
Price: 6.824 USD

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Audio-Codec mit USB-Schnittstelle, Mono-Mikrofoneingang und Stereo-Kopfhörerausgang

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Datenblatt

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

Fehlerverzeichnis

document-pdfAcrobat
Application Information for Difference Between PCM2912A and PCM2912 (Englisch)

PCM2912A

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Datenblatt

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Produktdetails

Number of ADC channels

1

Number of DAC channels

2

Analog inputs

1

Sampling rate (max) (kHz)

48

Control interface

H/W

Features

Mic bias, PGAs, Sidetone, USB interface

Analog outputs

2

Rating

Catalog

Operating temperature range (°C)

-25 to 85

Number of ADC channels

1

Number of DAC channels

2

Analog inputs

1

Sampling rate (max) (kHz)

48

Control interface

H/W

Features

Mic bias, PGAs, Sidetone, USB interface

Analog outputs

2

Rating

Catalog

Operating temperature range (°C)

-25 to 85

TQFP (PJT)

32

81 mm² 9 x 9

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.

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Alle anzeigen 5

	Typ	Titel		Datum
*	Data sheet	PCM2912A Audio Codec With USB Interface, Mono Microphone Input and Stereo Headphone Output datasheet (Rev. A)	PDF \| HTML	25 Aug 2015
*	Errata	Application Information for Difference Between PCM2912A and PCM2912		25 Nov 2008
	EVM User's guide	PCM2912A Evaluation Module User's Guide (Rev. A)	PDF \| HTML	03 Apr 2024
	Application note	Operating Environments for PCM2912A Applications (Rev. A)		10 Nov 2016
	Application note	Solving Enumeration Errors in USB Audio DAC and CODEC Designs		30 Okt 2009

Design und Entwicklung

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Evaluierungsplatine

DEM-PCM2912AEVM — DEM-PCM2912AEVM-Evaluierungsmodul

The DEM-PCM2912A EVM is a complete evaluation platform for the 16-bit, mono microphone input and stereo headphone output PCM2912A bus-powered audio codec with a USB interface. All necessary connectors and circuitry are provided for interfacing to audio test systems and commercial audio equipment.

A (...)

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PCM2912A

Audio-Codec mit USB-Schnittstelle, Mono-Mikrofoneingang und Stereo-Kopfhörerausgang

PCM2912A

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Design und Entwicklung

DEM-PCM2912AEVM — DEM-PCM2912AEVM-Evaluierungsmodul

PSPICE-FOR-TI — PSpice® für TI Design-und Simulationstool

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