Audio Codec 2ADC / 2DAC 24-Bit 32-Pin VQFN EP T/R, PCM3052ARTFR, Texas Instruments

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.

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-kO 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:
On-Chip High-Pass Filter: 0.91 Hz at f_S = 48 kHz
High Performance:

Stereo DAC:

Single-Ended Voltage Output: 4 Vp-p
Analog Low-Pass Filter Included
×8 Oversampling Digital Filter:
High Performance:

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 f_S Only

Dual Power Supplies:

5 V for Analog and 3.3 V for Digital

Package:VQFN-32

Характеристики

Бренд	Texas Instruments
Operating_temperature	-40 to 85 °C
Adc_dac_resolution	24 Bit
Number_of_adc_inputs	2
Supplier_package	VQFN EP
Specifications	http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=PCM3052A&&fileType=pdf
Screening_level	Industrial
Schedule_b	8542390000
Sampling_rate	96 ksps
Product_dimensions	6.2 x 5.2 x 0.95 mm
Pin_count	32
Number_of_dac_outputs	2
Number_of_dacs	2
Operating_supply_voltage	5 V
Количество каналов	2ADC /2 DAC
Number_of_adcs	2
Msl_level	1
Mounting	Surface Mount
Max_processing_temp	260
Lead_finish	Gold
Kind	General Purpose
Htsn	8542390001
Eccn	EAR99
Country_of_origin	United States

Артикул: PCM3052ARTFR

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