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PDF PCM4222 Data sheet ( Hoja de datos )

Número de pieza PCM4222
Descripción Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
Fabricantes Burr-Brown 
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BurrĆBrown Products
from Texas Instruments
PCM4222
PCM4222
SBAS399A – OCTOBER 2006 – REVISED MARCH 2007
High-Performance, Two-Channel, 24-Bit, 216kHz Sampling
Multi-Bit Delta-Sigma Analog-to-Digital Converter
FEATURES
Supports Linear PCM, 1-Bit Direct Stream
Digital (DSD), and Multi-Bit Modulator Output
Data
– Supports PCM Output Sampling Rates
from 8kHz to 216kHz
– Choose from 64x or 128x Oversampled
Output Rates for DSD
Differential Voltage Inputs
On-Chip Voltage Reference Improves Power
Supply Noise Rejection
Dynamic Performance: Multi-Bit Modulator
Output with 6.144MHz Modulator Clock
– 6-Bit Modulator Data
– Dynamic Range (–60dB input, A-weighted):
124dB typical
– Dynamic Range (–60dB input, 20kHz
Bandwidth): 122dB typical
– Total Harmonic Distortion + Noise
(–1dB input, 20kHz bandwidth): –108dB
typical
Dynamic Performance: PCM Output with
24-Bit Word Length
– Dynamic Range (–60dB input, A-weighted):
123dB typical
– Dynamic Range (–60dB input, 20kHz
bandwidth): 121dB typical
– Total Harmonic Distortion + Noise
(–1dB input, 20kHz bandwidth): –108dB
typical
Dynamic Performance: DSD Output with
5.6448MHz bit rate
– Dynamic Range (–60dB input, 20kHz
bandwidth): 121dB typical
– Total Harmonic Distortion + Noise
(–1dB input, 20kHz bandwidth): –108dB
typical
Low Power Dissipation:
– 305mW typical for 48kHz sampling rate
– 330mW typical for 96kHz sampling rate
– 340mW typical for 192kHz sampling rate
Linear Phase Digital Decimation Filtering
– Select from Classic or Low Group Delay
Filter Responses
Digital High-Pass Filtering Removes DC Offset
– Left and Right Channel Filters May Be
Disabled Independently
PCM Audio Serial Port Interface
– Master or Slave Mode Operation
– Supports Left-Justified, I2S™, and TDM
Data Formats
PCM Output Word Length Reduction
Overflow Indicators for the Left and Right
Channels
Analog Power Supply:
+4.0V nominal
Digital Power Supply:
+3.3V nominal
Power-Down Mode: 4mW typical
Package: TQFP-48, RoHS compliant
APPLICATIONS
Digital Audio Recorders and
Mixing Desks
Digital Live Sound Consoles
Digital Audio Effects Processors
Surround Sound Encoders
Broadcast Studio Equipment
Audio Test and Measurement
Sonar Systems
High-Performance Data Acquisition
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.
Windows is a registered trademark of Microsoft.
I2S is a trademark of NXP Semiconductors.
All other 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 © 2006–2007, Texas Instruments Incorporated

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PCM4222 pdf
PCM4222
www.ti.com
SBAS399A – OCTOBER 2006 – REVISED MARCH 2007
ELECTRICAL CHARACTERISTICS: ANALOG INPUTS, OUTPUTS, AND DC ERROR
All specifications are at TA = +25°C, VCC1 = VCC2 = +4.0V, and VDD = +3.3V, unless otherwise noted.
PCM4222
PARAMETER
CONDITIONS
MIN
TYP
MAX
ANALOG INPUTS
Applies to VINL+, VINL–, VINR+, and VINR–
Full-scale input range
Differential input
5.6
Per input pin
2.8
Input impedance
Per input pin
2.8
Common-mode rejection
100
ANALOG OUTPUTS
Common-mode output, left channel
Measured from VCOML (pin 13) to AGND
0.4875 ×
VCC2
Common-mode output, right channel
Measured from VCOMR (pin 48) to AGND
0.4875 ×
VCC1
Common-mode output current
Applies to VCOML or VCOMR
200
DC ERROR
Output offset error
Digital high-pass filter disabled
3
Offset drift
Digital high-pass filter disabled
3.5
UNITS
VPP
VPP
k
dB
V
V
µA
mV
µV/°C
ELECTRICAL CHARACTERISTICS: POWER SUPPLIES
All specifications are at TA = +25°C, VCC1 = VCC2 = +4.0V, VDD = +3.3V, and MCKI = 12.288MHz, unless otherwise noted.
PCM4222
PARAMETER
CONDITIONS
MIN
TYP
MAX
POWER SUPPLIES
Recommended supply voltage range
VCC1, VCC2
VCC1, VCC2
VDD
Supply current: power-down
0°C < TA +85°C
–40°C TA 0°C
–40°C TA +85°C
RST (pin 36) held low with no clocks applied
+3.8
+3.9
+2.4
+4.0
+4.0
+3.3
+4.2
+4.2
+3.6
ICC1 + ICC2
VCC1 = VCC2 = +4.0V
600
IDD
VDD = +3.3V
325
Supply current: fS = 48kHz
ICC1 + ICC2
VCC1 = VCC2 = +4.0V
65 75
IDD
VDD = +3.3V
14 18
Supply current: fS = 96kHz
ICC1 + ICC2
VCC1 = VCC2 = +4.0V
65
IDD
VDD = +3.3V
21
Supply current: fS = 192kHz
ICC1 + ICC2
VCC1 = VCC2 = +4.0V
65
IDD
VDD = +3.3V
24
Total power dissipation: power-down
3.5
Total power dissipation: fS = 48kHz
Total power dissipation: fS = 96kHz
Total power dissipation: fS = 192kHz
305 360
330
340
UNITS
V
V
V
µA
µA
mA
mA
mA
mA
mA
mA
mW
mW
mW
mW
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PCM4222 arduino
PCM4222
www.ti.com
SBAS399A – OCTOBER 2006 – REVISED MARCH 2007
TYPICAL CHARACTERISTICS (continued)
At TA = +25°C, VCC1 = VCC2 = +4.0V, and VDD = +3.3V, unless otherwise noted.
FFT PLOT
0
fS = 96kHz
-20 fIN = 997Hz, -60dB
-40
-60
-80
-100
-120
-140
-160
-180
20
100 1k
Frequency (Hz)
Figure 11.
10k
48k
FFT PLOT
0
fS = 96kHz
-20 Idle Channel (no input)
-40
-60
-80
-100
-120
-140
-160
-180
20
100 1k
Frequency (Hz)
Figure 12.
10k
48k
THD+N vs INPUT FREQUENCY
-60
fS = 96kHz
-70 Input Amplitude = -1dB
BW = 22Hz to 40kHz
-80
-90
-100
-110
-120
-130
20
100 1k
Input Frequency (Hz)
10k
Figure 13.
40k
THD+N vs INPUT AMPLITUDE
-60
fS = 96kHz
-70 fIN = 997Hz
BW = 22Hz to 40kHz
-80
-90
-100
-110
-120
-130
-140
-120
-100 -80 -60 -40
Input Amplitude (dB)
-20
Figure 14.
0
CHANNEL SEPARATION vs INPUT FREQUENCY
0
-20 fS = 96kHz
-40
Left Channel
Right Channel
-60
-80
-100
-120
-140
-160
-180
-200
0
5 10 15 20 25 30 35 40
Input Frequency (kHz)
Figure 15.
0
fS = 96kHz
-20
LINEARITY
-40
-60
-80
-100
-120
-140
-140
-120
-100 -80 -60 -40
Input Amplitude (dB)
Figure 16.
-20
0
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