ꢀꢁ ꢂꢃ ꢄ ꢅ ꢆ ꢇ ꢀ ꢁꢂ ꢃ ꢄꢅ ꢈ
ꢀꢁꢂ ꢃ ꢄ ꢅ ꢉ ꢇ ꢀ ꢁꢂ ꢃ ꢄꢅ ꢄ
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SLES081A − JUNE 2003 – REVISED MAY 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
IN
A
BUS
S
PCM2704DB, PCM2705DB,
PCM2706PJT, PCM2707PJT
PARAMETER
DIGITAL INPUT/OUTPUT
TEST CONDITIONS
UNIT
MIN
TYP
MAX
Apply USB revision 1.1,
full-speed
Host interface
Audio data format
USB isochronous data format
INPUT LOGIC
V
V
V
V
2
–0.3
2
3.3
0.8
IH
IL
Input logic level
VDC
(1)
5.5
IH
(1)
IL
–0.3
0.8
(2)
I
I
I
I
V
IN
V
IN
V
IN
V
IN
= 3.3 V
= 0 V
±10
±10
100
±10
IH
(2)
IL
Input logic current
µA
= 3.3 V
= 0 V
65
IH
IL
OUTPUT LOGIC
(3)
V
V
V
V
I
I
I
I
= –2 mA
= 2 mA
2.8
2.4
OH
OH
OL
OH
OL
(3)
OL
0.3
0.4
Output logic level
VDC
= –2 mA
= 2 mA
OH
OL
CLOCK FREQUENCY
Input clock frequency, XTI
Sampling frequency
11.994
12
12.006
MHz
kHz
f
s
32, 44.1, 48
DAC CHARACTERISTICS
Resolution
16
Bits
Audio data channel
DC ACCURACY
1, 2
Channel
Gain mismatch, channel-to-channel
Gain error
±2
±2
±3
±8 % of FSR
±8 % of FSR
±6 % of FSR
Bipolar zero error
(4)
DYNAMIC PERFORMANCE
R
R
R
> 10 kΩ, self-powered
> 10 kΩ, bus-powered
= 32 Ω,
0.006%
0.012%
0.01%
0.02%
L
L
L
(5)
Line
THD+N,
V
OUT
= 0 dB
Headphone
0.025%
self-/bus-powered
THD+N, V
OUT
Dynamic range
= –60 dB
2%
98
98
70
EIAJ, A-weighted
EIAJ, A-weighted
90
90
60
dB
dB
dB
S/N ratio
Channel separation
(1)
(2)
(3)
(4)
HOST
D+, D–, HOST, TEST, TEST0, TEST1, DT, PSEL, FSEL, XTI
FUNC0, FUNC1, FUNC2
f
= 1 kHz, using the System Twot Cascade audio measurement system by Audio Precisiont in the RMS mode with a 20-kHz LPF and 400-Hz
IN
HPF.
(5)
THD+N performance varies slightly depending on the effective output load, including dummy load R7, R8 in Figure 31.
System Two and Audio Precision are trademarks of Audio Precision, Inc.
3
TI [ TEXAS INSTRUMENTS ]
