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24-Bit 96-kHz Stereo Audio CODEC w/Microphone Amp, Bias, Multiplexer & PGA
Texas Instruments
Description
The PCM3052A is a low-cost, single-chip, 24-bit stereo audio codec (ADC and DAC) with single-ended analog voltage input and output. It also has an analog front end consisting of a 34-dB microphone amplifier, microphone bias generator, 2 stereo multiplexers, and a wide-range PGA. Analog- to-digital converters (ADCs) employ delta-sigma modulation with 64-times oversampling. On the other hand, digital-to-analog converters (DACs) employ modulation with 64- and 128-times oversampling. ADCs include a digital decimation filter with a high-pass filter, and DACs include an 8-times oversampling digital interpolation filter. The PCM3052A has many functions which are controlled using the I2C interface: DAC digital de-emphasis, digital attenuation, soft mute etc. The PCM3052A also has an S/PDIF output pin for the DAC digital input. The power-down mode, which works on ADCs and DACs simultaneously, is provided by an external pin. The PCM3052A is suitable for a wide variety of cost-sensitive PC audio (recorder and player) applications where good performance is required. The PCM3052A is fabricated using a highly advanced CMOS process and is available in a small 32-pin VQFN package.
Features
Microphone Amplifier and Bias Monaural Microphone Amplifier: 34-dB Gain at Differential Input Microphone Bias: 1 mA at 3.75 V Multiplexer and PGA Multiplex of Stereo Single-Ended Line Inputs and Monaural Microphone Amplifier 0.1 Vrms to 1.5 Vrms Full-Scale Input Range 22-k Input Resistance at 0.1-Vrms Input 20 dB to -4 dB/range, 1 dB/step PGA Reference Output: ±10 mA at 2.5 V 24-Bit Delta-Sigma ADC and DAC Stereo ADC: Full-Scale Input: 3 Vp-p Antialiasing Filter Included 1/64 Decimation Filter: Pass-Band Ripple: ±0.05 dB Stop-Band Attenuation: -65 dB On-Chip High-Pass Filter: 0.91 Hz at fS = 48 kHz High Performance: THD+N: -94 dB (Typical) SNR: 101 dB (Typical) Dynamic Range: 101 dB (Typical) Stereo DAC: Single-Ended Voltage Output: 4 Vp-p Analog Low-Pass Filter Included ×8 Oversampling Digital Filter: Pass-Band Ripple: ±0.03 dB Stop-Band Attenuation: -50 dB High Performance: THD+N: -97 dB (Typical) SNR: 105 dB (Typical Dynamic Range: 104 dB (Typical) S/PDIF Output for DAC Digital Input Multiple Functions With I2C Interface: Digital De-Emphasis: 32-, 44.1-, 48-kHz Zipper-Noise-Free Digital Attenuation and Soft Mute for DAC HPF Bypass Control for ADC S/PDIF Output Control Power Down: ADC/DAC Independently External Power-Down Pin: ADC/DAC Simultaneously Audio Data Format: 24-Bit I2S Only Sampling Rate: 16-96 kHz for Both ADC and DAC System Clock: 256 fS Only Dual Power Supplies: 5 V for Analog and 3.3 V for Digital Package: VQFN-32 System Two, Audio Precision are trademarks of Audio Precision, Inc. All trademarks are the property of their respective owners.
Related Datasheets
| Part Number | Description | Category |
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| • PCM4204 | PCM4204: High Performance 24-Bit, 216kHz Sampling Four-Chan Audio A/D Converter (Rev. A) | Passives - Filters, Oscillators and Resonators |
| • TLV320AIC34 | Four Channel Low Power Audio Codec (Rev. A) | Passives - Filters, Oscillators and Resonators |
| • TPS40200 | Wide Input Range Non-Synchronous Voltage Mode Controller (Rev. C) | ICs, Interface |
| • TPS40200-EP | Wide-Input-Range Nonsynchronous Voltage Mode Controller | ICs, Interface |
| • TPS63000 | High Efficient Single Inductor Buck-Boost Converter with 1.8-A Switch (Rev. A) | ICs, Interface |
| • TUSB6020 | USB 2.0 High-Speed On-the-Go Dual-Role Controller (Rev. E) | EDA - Embedded Systems Design |
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