Philips UDA1325 用户手册
1999 May 10
4
Philips Semiconductors
Preliminary specification
Universal Serial Bus (USB) CODEC
UDA1325
QUICK REFERENCE DATA
Note
1. Exclusive the IDDE current which depends on the components connected to the I/O pins.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
V
DDE
supply voltage periphery
4.75
5.0
5.25
V
V
DDI
supply voltage core
3.0
3.3
3.6
V
I
DD(tot)
total supply current
−
60
tbf
mA
I
DD(tot)(ps)
total supply current in power-saving
mode
mode
note 1
−
360
−
µ
A
Dynamic performance DAC
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
noise-to-signal ratio
f
s
= 44.1 kHz; R
L
= 5 k
Ω
f
i
= 1 kHz (0 dB)
−
−
90
−
80
dB
−
0.0032
0.01
%
f
i
= 1 kHz (
−
60 dB)
−
−
30
−
20
dB
−
3.2
10
%
S/N
signal-to-noise ratio at bipolar zero
A-weighted at code 0000H 90
95
−
dBA
V
o(FS)(rms)
full-scale output voltage
(RMS value)
(RMS value)
V
DD
= 3.3 V
−
0.66
−
V
Dynamic performance PGA and ADC
(THD + N)/S
total harmonic distortion plus
noise-to-signal ratio
noise-to-signal ratio
f
s
= 44.1 kHz;
PGA gain = 0 dB
f
i
= 1 kHz; (0 dB);
V
i
= 1.0 V (RMS)
−
−
85
−
80
dB
−
0.0056
0.01
%
f
i
= 1 kHz (
−
60 dB)
−
−
30
−
20
dB
−
3.2
10.0
%
S/N
signal-to-noise ratio
V
i
= 0.0 V
90
95
−
dBA
General characteristics
f
i(s)
audio input sample frequency
5
−
55
kHz
T
amb
operating ambient temperature
0
25
70
°
C