ꢀ ꢁꢂ ꢃ ꢄꢅ ꢅ
ꢀ ꢁꢂ ꢃ ꢄꢅ ꢃ
www.ti.com
SLES035B − MARCH 2002 − REVISED JUNE 2004
ELECTRICAL CHARACTERISTICS
all specifications at T = 25°C, V
= 5 V, f = 44.1 kHz, f = 1 kHz, 16-bit data, unless otherwise noted
A
BUS
S
IN
PCM2900E, PCM2902E
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
Digital Input/Output
Apply USB Revision 1.1,
full speed
Host interface
Audio data format
USB isochronous data format
Input Logic
D+, D−
2
2.52
2
3.3
3.3
5.25
5.25
0.8
0.9
0.8
0.9
10
XTI, HID0, HID1, and HID2
SEL0, SEL1
V
High-levell input voltage
VDC
VDC
IH
DIN, PCM2902
2.52
D+, D−
XTI, HID0, HID1, and HID2
SEL0, SEL1
V
I
Low-level input voltage
IL
DIN, PCM2902
D+, D−, XTI, SEL0, SEL1
HID0, HID1, and HID2
DIN, PCM2902
V
IN
V
IN
V
IN
V
IN
V
IN
V
IN
= 3.3 V
= 3.3 V
= 3.3 V
= 0 V
50
65
80
High-level input current
Low-level input current
µA
µA
IH
100
10
D+, D−, XTI, SEL0, SEL1
HID0, HID1, and HID2
DIN, PCM2902
= 0 V
10
I
IL
= 0 V
10
Output Logic
D+, D−
2.8
2.8
2.8
DOUT, PCM2902
SSPND
I
= –4 mA
= –2 mA
V
V
High-level output voltage
VDC
VDC
MHz
OH
OH
OH
I
D+, D−
0.3
0.5
0.5
DOUT, PCM2902
SSPND
I
I
= 4 mA
= 2 mA
Low-level output voltage
OL
OL
OL
Clock Frequency
Input clock frequency, XTI
11.994
12 12.006
ADC Characteristics
Resolution
8, 16
1, 2
bits
Audio data channel
channel
3
TI [ TEXAS INSTRUMENTS ]
