PCM2912A Series

Audio CODEC with USB Interface, Mono Microphone Input and Stereo Headphone Output

Catalog

Audio CODEC with USB Interface, Mono Microphone Input and Stereo Headphone Output

Part	Data Interface	Resolution (Bits)	Dynamic Range, ADCs / DACs (db) Typ [custom]	Dynamic Range, ADCs / DACs (db) Typ [custom]	Number of ADCs / DACs [custom]	Number of ADCs / DACs [custom]	Type	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Package / Case	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Mounting Type	S/N Ratio, ADCs / DACs (db) Typ [custom]	S/N Ratio, ADCs / DACs (db) Typ [custom]	Supplier Device Package
Texas Instruments PCM2912PJTG4	USB	16 b	90 dB	90 dB	2	1	Stereo Audio	5.25 V	4.35 V	32-TQFP	5.25 V	4.35 V	-25 °C	85 °C	Surface Mount	92 db	92 dB	32-TQFP (7x7)
Texas Instruments PCM2912PJT	USB	16 b	90 dB	90 dB	2	1	Stereo Audio	5.25 V	4.35 V	32-TQFP	5.25 V	4.35 V	-25 °C	85 °C	Surface Mount	92 db	92 dB	32-TQFP (7x7)
Texas Instruments PCM2912APJTR	USB	16 b	90 dB	90 dB	2	1	Stereo Audio	5.25 V	4.35 V	32-TQFP	5.25 V	4.35 V	-25 °C	85 °C	Surface Mount	92 db	92 dB	32-TQFP (7x7)
Texas Instruments PCM2912APJT	USB	16 b	90 dB	90 dB	2	1	Stereo Audio	5.25 V	4.35 V	32-TQFP	5.25 V	4.35 V	-25 °C	85 °C	Surface Mount	92 db	92 dB	32-TQFP (7x7)

Catalog

Audio CODEC with USB Interface, Mono Microphone Input and Stereo Headphone Output

Key Features

• On-Chip USB Interface:With Full-Speed TransceiversFully Compliant With USB 2.0 SpecificationCertified By USB-IFPartially Programmable DescriptorsAdaptive Isochronous Transfer for PlaybackAsynchronous-Isochronous Transfer forRecordBus Powered16-Bit Delta-Sigma ADC and DACSampling Rate:8, 11.025, 16, 22.05, 32, 44.1, or 48 kHzOn-Chip Clock Generator:With Single 6-MHz Clock SourceMono ADC with Microphone InputAnalog Performance at VBUS= 5 V:THD+N: 0.01%SNR: 92 dBDynamic Range: 90 dBDecimation Digital FilterPassband Ripple: ±0.05 dBStop-Band Attenuation: –65 dBSingle-Ended Voltage InputAntialiasing Filter IncludedDigital HPF IncludedMicrophone Bias, Microphone Amplifier, andInput PGAStereo DAC With Headphone OutputAnalog Performance at VBUS= 5.0 V:THD+N: 0.01% (RL> 10 kΩ)THD+N: 0.02% (RL= 32 Ω)SNR: 92 dBDynamic Range: 90 dBPO: 13 mW (RL= 32 Ω)PO: 25 mW (RL= 16 Ω)Oversampling Digital FilterPassband Ripple: ±0.1 dBStop-Band Attenuation: –43 dBSingle-Ended Voltage OutputAnalog LPF IncludedSidetone PGA, Output PGA, and HPAmplifierMultifunctions:Suspend, Playback, and Record Status FlagMicrophone Amplifier, Mute, and Gain ControlPop/Click Noise-FreeSingle Power-Supply: 5 V Typical (VBUS)Package: 32-Pin TQFPOn-Chip USB Interface:With Full-Speed TransceiversFully Compliant With USB 2.0 SpecificationCertified By USB-IFPartially Programmable DescriptorsAdaptive Isochronous Transfer for PlaybackAsynchronous-Isochronous Transfer forRecordBus Powered16-Bit Delta-Sigma ADC and DACSampling Rate:8, 11.025, 16, 22.05, 32, 44.1, or 48 kHzOn-Chip Clock Generator:With Single 6-MHz Clock SourceMono ADC with Microphone InputAnalog Performance at VBUS= 5 V:THD+N: 0.01%SNR: 92 dBDynamic Range: 90 dBDecimation Digital FilterPassband Ripple: ±0.05 dBStop-Band Attenuation: –65 dBSingle-Ended Voltage InputAntialiasing Filter IncludedDigital HPF IncludedMicrophone Bias, Microphone Amplifier, andInput PGAStereo DAC With Headphone OutputAnalog Performance at VBUS= 5.0 V:THD+N: 0.01% (RL> 10 kΩ)THD+N: 0.02% (RL= 32 Ω)SNR: 92 dBDynamic Range: 90 dBPO: 13 mW (RL= 32 Ω)PO: 25 mW (RL= 16 Ω)Oversampling Digital FilterPassband Ripple: ±0.1 dBStop-Band Attenuation: –43 dBSingle-Ended Voltage OutputAnalog LPF IncludedSidetone PGA, Output PGA, and HPAmplifierMultifunctions:Suspend, Playback, and Record Status FlagMicrophone Amplifier, Mute, and Gain ControlPop/Click Noise-FreeSingle Power-Supply: 5 V Typical (VBUS)Package: 32-Pin TQFP

Description

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.