PCM2912

NICHT FÜR NEUE DESIGNS EMPFOHLEN

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

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Datenblatt

document-pdfAcrobat Audio CODEC with USB Interface,Mono Microphone Input and Stereo Headphone Output datasheet (Englisch)

Fehlerverzeichnis

document-pdfAcrobat
PCM2912 Errata (Rev. A) (Englisch)

PCM2912 wird nicht für neue Designs empfohlen

Dieses Produkt wird zwar noch für bestehende Designs hergestellt, wir raten jedoch von seiner Verwendung für neue Designs ab. Bitte ziehen Sie eine dieser Alternativen in Erwägung:

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PCM2912

NICHT FÜR NEUE DESIGNS EMPFOHLEN

Datenblatt

Jetzt bestellen

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, 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
- Pass-Band 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 k
  - THD+N: 0.02% (R_L = 32
  - SNR: 92 dB
  - Dynamic Range: 90 dB
  - PO: 13 mW (R_L = 32 )
  - PO: 25 mW (R_L = 16 )
- Oversampling Digital Filter
  - Pass-Band 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 Typ (V_BUS)
- Package: 32-Pin TQFP
APPLICATIONS
- USB Headset
- USB Headphone
- USB Speaker
- USB Featured Consumer Audio Product
- USB Audio Interface Box
- USB Monitor
- Video Conference System

SpAct is a trademark of Texas Instruments.

Audio Precision, System Two are trademarks of Audio Precision, Inc.

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, 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
- Pass-Band 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 k
  - THD+N: 0.02% (R_L = 32
  - SNR: 92 dB
  - Dynamic Range: 90 dB
  - PO: 13 mW (R_L = 32 )
  - PO: 25 mW (R_L = 16 )
- Oversampling Digital Filter
  - Pass-Band 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 Typ (V_BUS)
- Package: 32-Pin TQFP
APPLICATIONS
- USB Headset
- USB Headphone
- USB Speaker
- USB Featured Consumer Audio Product
- USB Audio Interface Box
- USB Monitor
- Video Conference System

SpAct is a trademark of Texas Instruments.

Audio Precision, System Two are trademarks of Audio Precision, Inc.

The PCM2912 is the Texas Instruments single-chip, USB stereo audio CODEC with USB 2.0-compliant full-speed protocol controller and analog front end (AFE) function for headset application. The USB protocol controller works with no software code, but USB descriptors can be modified on request⁽¹⁾. The PCM2912 employs SpActĢ 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 rate with low clock jitters.

⁽¹⁾The descriptor can be modified by changing a mask; contact your representative about the details.

The PCM2912 is the Texas Instruments single-chip, USB stereo audio CODEC with USB 2.0-compliant full-speed protocol controller and analog front end (AFE) function for headset application. The USB protocol controller works with no software code, but USB descriptors can be modified on request⁽¹⁾. The PCM2912 employs SpActĢ 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 rate with low clock jitters.

⁽¹⁾The descriptor can be modified by changing a mask; contact your representative about the details.

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Technische Dokumentation

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Alle anzeigen 4

	Typ	Titel	Datum
*	Data sheet	Audio CODEC with USB Interface,Mono Microphone Input and Stereo Headphone Output datasheet	21 Feb 2008
*	Errata	PCM2912 Errata (Rev. A)	06 Jun 2008
	EVM User's guide	DEM-PCM2912 EVM User's Guide	20 Mär 2008
	Application note	Operating Environments for PCM2912 Applications	21 Feb 2008

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PCM2912

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

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