Datasheet

ELECTRICAL CHARACTERISTICS: Digital Input/Output
PCM1789
www.ti.com .............................................................................................................................................. SBAS451A – OCTOBER 2008 – REVISED JANUARY 2009
All specifications at T
A
= +25 ° C, VCC1 = VCC2 = 5 V, VDD = 3.3 V, f
S
= 48 kHz, SCKI = 512 f
S
, 24-bit data, and Sampling
mode = Auto, unless otherwise noted.
PCM1789
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
DATA FORMAT
Audio data interface format I
2
S, LJ, RJ, DSP
Audio data word length 16, 20, 24, 32 Bits
Audio data format MSB first, twos complement
Sampling frequency f
S
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
, 1152 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 current
I
IL
(2) (3)
V
IN
= 0 V ± 10 µ A
I
IH
(1) (4)
V
IN
= VDD +65 +100 µ A
Input logic current
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 OUTPUT
0.5 ×
VCOM output voltage V
VCC1
VCOM output impedance 7.5 k Ω
Allowable VCOM output source/sink current 1 µ A
(1) BCK and LRCK (Schmitt trigger input with 50-k Ω typical internal pull-down resistor).
(2) DIN (Schmitt trigger input).
(3) SCKI, ADR5/ADR1/RSV, MC/SCL/FMT, MD/SDA/DEMP, and AMUTEI (Schmitt trigger input, 5-V tolerant).
(4) RST and MS/ADR0/RSV (Schmitt trigger input with 50-k Ω typical internal pull-down resistor, 5-V tolerant).
(5) ZERO1 and ZERO2.
(6) AMUTEO and SDA (I
2
C mode, open-drain low output).
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Product Folder Link(s): PCM1789