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PCM3052A Datasheet Preview

PCM3052A Datasheet

STEREO AUDIO CODEC

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BurrĆBrown 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-kInput 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
A
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
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.
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.
Copyright © 2005, Texas Instruments Incorporated




Burr-Brown

PCM3052A Datasheet Preview

PCM3052A Datasheet

STEREO AUDIO CODEC

No Preview Available !

PCM3052A
SLES160 – NOVEMBER 2005
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated
circuits be handled with appropriate precautions. Failure to observe proper handling and installation
procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision
integrated circuits may be more susceptible to damage because very small parametric changes could
cause the device not to meet its published specifications.
ABSOLUTE MAXIMUM RATINGS
over operating free-air temperature range (unless otherwise noted)(1)
Supply voltage
Supply voltage differences
Ground voltage differences
VCC1, VCC2, VCC3
VDD
VCC1, VCC2, VCC3
AGND1, AGND2, AGND3, DGND
Digital input voltage
PDWN, DIN, SCKI, SDA, SCL, ADR, I2CEN
DOUT, LRCK, BCK, DOUTS
Analog input voltage
VINL, VINR, VREF1, VREF2, REFO, ATEST, L/M, VOUTR, VOUTL, VCOM,
MINP, MINM, MBIAS
Input current (any pins except supplies)
Ambient temperature under bias
Storage temperature
Junction temperature
Lead temperature (soldering)
Package temperature (reflow, peak)
PCM3052A
–0.3 V to 6.5 V
–0.3 V to 4 V
±0.1 V
±0.1 V
–0.3 V to 6.5 V
– 0.3 V to (VDD + 0.3 V) < 4 V
–0.3 V to (VCC + 0.3 V) < 6.5 V
±10 mA
–40°C to 125°C
–55°C to 150°C
150°C
260°C, 5 s
260°C
(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings
only and functional operation of the device at these or any other conditions beyond those indicated under recommended operating
conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
VDD Digital supply voltage
VCC Analog supply voltage
Digital input logic family
Digital input clock frequency
System clock
Sampling clock
Analog input voltage
Line input, full scale, PGA = 0 dB
Microphone input, full scale, PGA = 0 dB
Digital output load capacitance
Line output load resistance
Line output load capacitance
Microphone bias output load resistance
Reference output load resistance
TA Operating free-air temperature
MIN NOM
3 3.3
4.5 5
TTL
compatible
4
16
3
30
5
3.75
250
–40
MAX
3.6
5.5
UNIT
V
V
25 MHz
96 kHz
Vp-p
mVp-p
20 pF
k
50 pF
k
85 °C
2


Part Number PCM3052A
Description STEREO AUDIO CODEC
Maker Burr-Brown
Total Page 30 Pages
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