PCM3794A Series

Very Low-Power Stereo CODEC with HP Amplifier, notch filters, ALC and 3D Effects

Catalog

Very Low-Power Stereo CODEC with HP Amplifier, notch filters, ALC and 3D Effects

Part	Data Interface	Resolution (Bits)	Number of ADCs / DACs [custom]	Number of ADCs / DACs [custom]	Supplier Device Package	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Dynamic Range, ADCs / DACs (db) Typ [custom]	Dynamic Range, ADCs / DACs (db) Typ [custom]	Package / Case	Mounting Type	S/N Ratio, ADCs / DACs (db) Typ [custom]	S/N Ratio, ADCs / DACs (db) Typ [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Type	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]
Texas Instruments PCM3794RHBT	Serial	16 b	2	2	32-VQFN (5x5)	1.71 V	3.6 V	90 db	93 db	32-VFQFN Exposed Pad	Surface Mount	93 db	90 db	85 °C	-40 °C	Stereo Audio	3.6 V	2.4 V
Texas Instruments PCM3794ARHBT	Serial	16 b	2	2	32-VQFN (5x5)	1.71 V	3.6 V	90 db	93 db	32-VFQFN Exposed Pad	Surface Mount	93 db	90 db	85 °C	-40 °C	Stereo Audio	3.6 V	2.4 V
Texas Instruments PCM3794RHBTG4	Serial	16 b	2	2	32-VQFN (5x5)	1.71 V	3.6 V	90 db	93 db	32-VFQFN Exposed Pad	Surface Mount	93 db	90 db	85 °C	-40 °C	Stereo Audio	3.6 V	2.4 V
Texas Instruments PCM3794ARHBR	Serial	16 b	2	2	32-VQFN (5x5)	1.71 V	3.6 V	90 db	93 db	32-VFQFN Exposed Pad	Surface Mount	93 db	90 db	85 °C	-40 °C	Stereo Audio	3.6 V	2.4 V

Catalog

Very Low-Power Stereo CODEC with HP Amplifier, notch filters, ALC and 3D Effects

Key Features

• Analog Front End:Stereo Single-Ended Input With MultiplexerMono Differential InputStereo Programmable Gain AmplifierMicrophone Amplifier (20 dB) and BiasAnalog Back End:Stereo/Mono Line Output With VolumeStereo/Mono Headphone Amplifier With Volume and Capless ModeStereo/Mono Digital Speaker Amplifier (BTL) With VolumeAnalog Performance:Dynamic Range: 93 dB (DAC)Dynamic Range: 90 dB (ADC)40-mW + 40-mW Headphone Output at RL= 16Power Supply Voltage1.71 V to 3.6 V for Digital I/O Section1.71 V to 3.6 V for Digital Core Section2.4 V to 3.6 V for Analog Section2.4 V to 3.6 V for Power Amplifier SectionLow Power Dissipation:7 mW in Playback, 1.8 V/2.4 V, 48 kHz13 mW in Record, 1.8 V/2.4 V, 48 kHz3.3 µW in Power DownSampling Frequency: 5 kHz to 50 kHzAutomatic Level Control for RecordingOperation From a Single Clock Input Without PLLSystem Clock:Common-Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHzHeadphone Plug Insert Detection2 (I2C) or 3 (SPI) Wire Serial ControlProgrammable Function by Register Control:Digital Attenuation of DAC: 0 dB to -62 dBDigital Gain of DAC: 0, 6, 12, 18 dBPower Up/Down Control for Each Module6-dB to -70-dB Gain for Analog Outputs30-dB to -12-dB Gain for Analog Inputs0/20 dB Selectable for Microphone Input0-dB to -21-dB Gain for Analog MixingParameter Settings for ALCThree-Band Tone Control and 3D SoundHigh-Pass Filter: 4-, 120-, 240-HzTwo-Stage Programmable Notch FilterAnalog Mixing ControlPop-Noise Reduction CircuitShort and Thermal Protection CircuitPackage: 5-mm × 5-mm QFN PacakgeOperation Temperature Range: -40°C to 85°CAPPLICATIONSPortable Audio Player, Cellular PhoneVideo Camcorder, Digital Movie/Still CameraPMP/DMBAnalog Front End:Stereo Single-Ended Input With MultiplexerMono Differential InputStereo Programmable Gain AmplifierMicrophone Amplifier (20 dB) and BiasAnalog Back End:Stereo/Mono Line Output With VolumeStereo/Mono Headphone Amplifier With Volume and Capless ModeStereo/Mono Digital Speaker Amplifier (BTL) With VolumeAnalog Performance:Dynamic Range: 93 dB (DAC)Dynamic Range: 90 dB (ADC)40-mW + 40-mW Headphone Output at RL= 16Power Supply Voltage1.71 V to 3.6 V for Digital I/O Section1.71 V to 3.6 V for Digital Core Section2.4 V to 3.6 V for Analog Section2.4 V to 3.6 V for Power Amplifier SectionLow Power Dissipation:7 mW in Playback, 1.8 V/2.4 V, 48 kHz13 mW in Record, 1.8 V/2.4 V, 48 kHz3.3 µW in Power DownSampling Frequency: 5 kHz to 50 kHzAutomatic Level Control for RecordingOperation From a Single Clock Input Without PLLSystem Clock:Common-Audio Clock (256 fS/384 fS), 12/24, 13/26, 13.5/27, 19.2/38.4, 19.68/39.36 MHzHeadphone Plug Insert Detection2 (I2C) or 3 (SPI) Wire Serial ControlProgrammable Function by Register Control:Digital Attenuation of DAC: 0 dB to -62 dBDigital Gain of DAC: 0, 6, 12, 18 dBPower Up/Down Control for Each Module6-dB to -70-dB Gain for Analog Outputs30-dB to -12-dB Gain for Analog Inputs0/20 dB Selectable for Microphone Input0-dB to -21-dB Gain for Analog MixingParameter Settings for ALCThree-Band Tone Control and 3D SoundHigh-Pass Filter: 4-, 120-, 240-HzTwo-Stage Programmable Notch FilterAnalog Mixing ControlPop-Noise Reduction CircuitShort and Thermal Protection CircuitPackage: 5-mm × 5-mm QFN PacakgeOperation Temperature Range: -40°C to 85°CAPPLICATIONSPortable Audio Player, Cellular PhoneVideo Camcorder, Digital Movie/Still CameraPMP/DMB

Description

The PCM3793A/94A is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793A/94A supports right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port. The PCM3793A/94A is a low-power stereo CODEC designed for portable digital audio applications. The device integrates stereo digital speaker amplifier, headphone amplifier, line amplifier, line input, boost amplifier, microphone bias, programmable gain control, analog mixing, sound effects, and automatic level control (ALC). It is available in a small-footprint, 5-mm × 5-mm QFN package. The PCM3793A/94A supports right-justified, left-justified, I2S, and DSP formats, providing easy interfacing to audio DSP and decoder/encoder chips. Sampling rates up to 50 kHz are supported. The user-programmable functions are accessible through a two- or three-wire serial control port.