Datasheet
www.ti.com
ELECTRICAL CHARACTERISTICS
PCM3000
PCM3001
SBAS055A – 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
= 5 V, f
S
= 44.1 kHz, SYSCLK = 384 f
S,
CLKIO input, and 18-bit data, unless
otherwise noted
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DIGITAL INPUT/OUTPUT
Input Logic
V
IH
(1)
2
Input logic level VDC
V
IL
(1)
0.8
I
IN
(2)
± 1
Input logic current µ A
I
IN
(3)
–120
V
IH
(4)
0.64 V
DD
VDC
Input logic level
V
IL
(4)
0.28 V
DD
I
IN
(4)
Input logic current ± 40 µ A
Output Logic
V
OH
(5)
I
OUT
= –1.6 mA 4.5
Output logic level
V
OL
(5)
I
OUT
= 3.2 mA 0.5
VDC
V
OH
(6)
I
OUT
= –3.2 mA 4.5
Output logic level
V
OL
(6)
I
OUT
= 3.2 mA 0.5
Clock Frequency
f
S
Sampling frequency 4
(7)
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 18 Bits
DC Accuracy
Gain mismatch, channel-to-channel ± 1 ± 5
% of FSR
Gain error ± 2 ± 5
Gain drift ± 20 ppm of FSR/ ° C
Bipolar zero error High-pass filter off
(8)
± 1.7 % of FSR
Bipolar zero drift High-pass filter off
(8)
± 20 ppm of FSR/ ° C
(1) Pins 16, 17, 18, 22, 25, 26, 27, 28: LRCIN, BCKIN, DIN, CLKIO, MC/FMT2, MD/FMT1, ML/FMT0, RSTB
(2) Pins 16, 17, 18, 22: LRCIN, BCKIN, DIN, CLKIO (Schmitt-trigger input)
(3) Pins 25, 26, 27, 28: MC/FMT2, MD/FMT1, ML/FMT0, RSTB (Schmitt-trigger input, 70-k Ω internal pullup resistor)
(4) Pin 20: XTI
(5) Pins 19, 22: DOUT, CLKIO
(6) Pin 21: XTO
(7) Refer to Application Bulletin SBAA033 for information relating to operation at lower sampling frequencies.
(8) High-pass filter disabled (PCM3000 only) to measure dc offset
2