Datasheet

ELECTRICAL CHARACTERISTICS: ANALOG INPUTS, OUTPUTS, AND DC ERROR
PCM4220
SBAS407C – DECEMBER 2006 – REVISED AUGUST 2009 ............................................................................................................................................. www.ti.com
ELECTRICAL CHARACTERISTICS: DIGITAL AND DYNAMIC PERFORMANCE (continued)
All specifications are at T
A
= +25 ° C, VCC1 = VCC2 = +4.0V, and VDD = +3.3V, unless otherwise noted.
PCM4220
PARAMETER CONDITIONS MIN TYP MAX UNIT
Digital Decimation Filter Characteristics:
Classic Response
Passband 0.4535 × f
S
Hz
Passband ripple ± 0.00015 dB
Stop band 0.5465 × f
S
Hz
Stop band attenuation – 100 dB
Group delay 39/f
S
Seconds
Digital Decimation Filter Characteristics:
Low Group Delay Response
Passband 0.4167 × f
S
Hz
Passband ripple ± 0.001 dB
Stop band 0.5833 × f
S
Hz
Stop band attenuation – 90 dB
Group delay 21/f
S
Seconds
Digital High-Pass Filter Characteristics
– 3dB corner frequency High-pass filter enabled f
S
/48000 Hz
All specifications are at T
A
= +25 ° C, VCC1 = VCC2 = +4.0V, and VDD = +3.3V, unless otherwise noted.
PCM4220
PARAMETER CONDITIONS MIN TYP MAX UNIT
ANALOG INPUTS
Full-scale input range
Differential input Referenced from VINL+ to VINL – , or VINR+ to 5.6 V
PP
VINR –
Per input pin Applies to VINL+, VINL – , VINR+, or VINR – 2.8 V
PP
Input impedance Applies to VINL+, VINL – , VINR+, or VINR – 2.8 k Ω
Common-mode rejection 100 dB
ANALOG OUTPUTS
Common-mode output voltage
Left channel, VCOML Measured from VCOML to AGND 0.4875 × VCC2 V
Right channel, VCOMR Measured from VCOMR to AGND 0.4875 × VCC1 V
Common-mode output current Applies to VCOML or VCOMR 200 µ A
DC ERROR
Output offset error Digital high-pass filter disabled 3 mV
Offset drift Digital high-pass filter disabled 3.5 µ V/ ° C
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