Datasheet
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ELECTRICAL CHARACTERISTICS
PCM3006
SBAS089A – OCTOBER 2000 – REVISED OCTOBER 2004
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.
All specifications at T
A
= 25 ° C, V
DD
= V
CC
= 3 V, f
S
= 44.1 kHz, SYSCLK = 384 f
S
, and 16-bit data, unless otherwise noted
PCM3006T
PARAMETER CONDITIONS UNITS
MIN TYP MAX
DIGITAL INPUT/OUTPUT
Input Logic
V
IH
(1)
0.7 V
DD
Input logic level VDC
V
IL
(1)
0.3 V
DD
I
IN
(2)
± 1
Input logic current µ A
I
IN
(3)
100
Output Logic
V
OH
(4)
I
OUT
= –1 mA V
DD
– 0.3 VDC
Output logic level
V
OL
(4)
I
OUT
= 1 mA 0.3
CLOCK FREQUENCY
f
s
Sampling frequency 4 44.1 48 kHz
256 f
S
1.024 11.2896 12.288
System clock frequency 384 f
S
1.536 16.9344 18.432 MHz
512 f
S
2.048 22.5792 24.576
ADC CHARACTERISTICS
Resolution 16 Bits
DC Accuracy
Gain mismatch, channel-to-channel ± 1 ± 3 % of FSR
Gain error ± 2 ± 5 % of FSR
Gain drift ± 20 ppm of FSR/ ° C
Dynamic Performance
(5)
V
IN
= –0.5 dB –84 –77
THD+N dB
V
IN
= –60 dB –26
Dynamic range A-weighted 84 89 dB
Signal-to-noise ratio A-weighted 84 89 dB
Channel separation 82 86 dB
Digital Filter Performance
Pass band 0.454 f
S
Hz
Stop band 0.583 f
S
Hz
Pass-band ripple ± 0.05 dB
Stop-band attenuation –65 dB
Delay time 17.4/f
S
s
(1) Pins 7, 8, 9, 10, 11, 15, 17, 18: PDAD, PDDA, SYSCLK, LRCIN, BCKIN, DIN, DEM1, DEM0 (Schmitt-trigger input with 100-k Ω typical
internal pulldown resistor)
(2) Pins 9, 10, 11, 15: SYSCLK, LRCIN, BCKIN, DIN (Schmitt-trigger input)
(3) Pins 7, 8, 17, 18: PDAD, PDDA, DEM1, DEM0 (Schmitt-trigger input, 100-k Ω typical internal pulldown resistor)
(4) Pin 12: DOUT
(5) f
IN
= 1 kHz, using System Two™ audio measurement system by Audio Precision™, rms mode with 20-kHz LPF, 400-Hz HPF used for
performance calculation.
2