Datasheet
ELECTRICAL CHARACTERISTICS: Digital Input/Output
PCM3168A
PCM3168A-Q1
SBAS452 – SEPTEMBER 2008 .........................................................................................................................................................................................
www.ti.com
All specifications at T
A
= +25 ° C, VCCAD1 = VCCAD2 = VCCDA1 = VCCDA2 = 5 V, VDD1 = VDD2 = 3.3 V, f
S
= 48 kHz,
SCKI = 512 f
S
, 24-bit data, Sampling Mode = Auto for ADC and DAC, and Interface Mode = Slave for ADC and DAC, unless
otherwise noted.
PCM3168A, PCM3168A-Q1
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DATA FORMAT
Audio data interface format I
2
S, LJ, RJ, DSP, TDM
Audio data word length 16, 24 Bits
Audio data format MSB first, twos complement
Sampling frequency, ADC 8 48 96 kHz
f
S
Sampling frequency, DAC 8 48 192 kHz
128 f
S
, 192 f
S
, 256 f
S
,
System clock frequency 2.048 36.864 MHz
384 f
S
, 512 f
S
, 768 f
S
INPUT LOGIC
V
IH
(1) (2)
2.0 VDD VDC
Input logic level
V
IL
(1) (2)
0.8 VDC
V
IH
(3) (4)
2.0 5.5 VDC
Input logic level
V
IL
(3) (4)
0.8 VDC
I
IH
(2) (3)
V
IN
= VDD ± 10 µ A
Input logic level
I
IL
(2) (3)
V
IN
= 0 V ± 10 µ A
I
IH
(1) (4)
V
IN
= VDD +65 +100 µ A
Input logic level
I
IL
(1) (4)
V
IN
= 0 V ± 10 µ A
OUTPUT LOGIC
V
OH
(5)
I
OUT
= – 4 mA 2.4 VDC
Output logic level
V
OL
(5) (6)
I
OUT
= +4 mA 0.4 VDC
REFERENCE INPUT/OUTPUT
VREFAD1 output voltage VCCAD1 V
VREFAD2 output voltage AGNDAD1 V
0.5 ×
VCOMAD output voltage V
VCCAD1
VCOMAD output impedance 10 k Ω
Allowable VCOMAD output source/sink current 1 µ A
0.5 ×
VCOMDA output voltage V
VCCDA1
VCOMDA output impedance 7.5 k Ω
Allowable VCOMDA output source/sink current 1 µ A
(1) BCKAD, BCKDA, LRCKAD, and LRCKDA (in slave mode, Schmitt trigger input with 50-k Ω typical internal pull-down resistor).
(2) DIN1/2/3/4 and MDO/ADR1/MD1. (Except SPI mode, Schmitt trigger input).
(3) SCKI, MDI/SDA/DEMP, and MC/SCL/FMT (Schmitt trigger input, 5-V tolerant).
(4) RST and MS/ADR0/MD0 (Schmitt trigger input with 50-k Ω typical internal pull-down resistor, 5-V tolerant).
(5) BCKAD, BCKDA, LRCKAD, and LRCKDA (in master mode), DOUT1/2/3, ZERO, OVF, and MDO/ADR1/MD1 (in SPI mode).
(6) SDA (in I
2
C mode, open-drain low output).
4 Submit Documentation Feedback Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): PCM3168A PCM3168A-Q1