ELECTRICAL CHARACTERISTICS: Digital Input/Output
SBAS452 – SEPTEMBER 2008 ......................................................................................................................................................................................... www.ti.com
All specifications at TA = +25°C, VCCAD1 = VCCAD2 = VCCDA1 = VCCDA2 = 5 V, VDD1 = VDD2 = 3.3 V, fS = 48 kHz,
SCKI = 512 fS, 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
I2S, 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
fS
Sampling frequency, DAC
8
48
192
kHz
128 fS, 192 fS, 256 fS,
System clock frequency
2.048
36.864
MHz
384 fS, 512 fS, 768 fS
INPUT LOGIC
VIH
(1) (2)
2.0
VDD
VDC
Input logic level
VIL
(1) (2)
0.8
VDC
VIH
(3) (4)
2.0
5.5
VDC
Input logic level
VIL
(3) (4)
0.8
VDC
IIH
(2) (3)
VIN = VDD
±10
A
Input logic level
IIL
(2) (3)
VIN = 0 V
±10
A
IIH
(1) (4)
VIN = VDD
+65
+100
A
Input logic level
IIL
(1) (4)
VIN = 0 V
±10
A
OUTPUT LOGIC
VOH
(5)
IOUT = –4 mA
2.4
VDC
Output logic level
VOL
(5) (6)
IOUT = +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
Allowable VCOMAD output source/sink current
1
A
0.5 ×
VCOMDA output voltage
V
VCCDA1
VCOMDA output impedance
7.5
k
Allowable VCOMDA output source/sink current
1
A
(1)
BCKAD, BCKDA, LRCKAD, and LRCKDA (in slave mode, Schmitt trigger input with 50-k
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
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 I2C mode, open-drain low output).
4
Copyright 2008, Texas Instruments Incorporated