PCM3052A datasheet, PDF - EEWORLD Datasheet

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PCM3052A: Description24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA; File Size577KB，45 Pages; ManufacturerBurr-Brown; Websitehttp://www.burr-brown.com/

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PCM3052A Overview

24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA

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Burr Brown Products

from Texas Instruments

PCM3052A

SLES160 – NOVEMBER 2005

24-BIT, 96-kHz STEREO AUDIO CODEC WITH

MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA

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-kΩ 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

•

Stop-Band Attenuation: –65 dB

– On-Chip High-Pass Filter: 0.91 Hz at

= 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

•

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 I

C 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 I

S Only

Sampling Rate:

– 16–96 kHz for Both ADC and DAC

System Clock: 256 f

Only

Dual Power Supplies:

– 5 V for Analog and 3.3 V for Digital

Package: VQFN-32

•

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 I

C 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.

•

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

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

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

PCM3052A Related Products

	PCM3052A	PCM3052ARTF	PCM3052ARTFG4	PCM3052ARTFR	PCM3052ARTFRG4
Description	24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA	24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA	24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA	24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA	24-BIT, 96-kHz STEREO AUDIO CODEC WITH MICROPHONE AMPLIFIER, BIAS, MUXTIPLEXER, AND PGA

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