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参数资料
| 型号： | UDA1345TS/N2,118 |
| 厂商： | NXP SEMICONDUCTORS |
| 元件分类： | 消费家电 |
| 英文描述： | Economy audio CODEC; Package: SOT341-1 (SSOP28); Container: Reel Pack, SMD, 13" |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封装： | 5.30 MM, PLASTIC, SSOP-28 |
| 文件页数： | 13/28页 |
| 文件大小： | 136K |
| 代理商： | UDA1345TS/N2,118 |
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2002 May 28
20
Philips Semiconductors
Product specication
Economy audio CODEC
UDA1345TS
11 AC CHARACTERISTICS (ANALOG)
VDDD =VDDA =VDDO = 3.0 V; fi = 1 kHz; fs = 44.1 kHz; Tamb =25 °C; RL =5k; all voltages referenced to ground
(pins 1, 11, 22 and 27); unless otherwise specied.
Notes
1. The input voltage can be up to 2 V (RMS) when the current through the ADC input pin is limited to approximately
1 mA by using a series resistor.
2. The input voltage to the ADC scales proportionally with the power supply voltage.
3. The output voltage of the DAC scales proportionally with the power supply voltage.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Analog-to-digital converter
Do
digital output level at 1 V (RMS)
input voltage
notes 1 and 2
2.5
1.5
0.5
dBFS
V
i
unbalance between channels
0.1
dB
(THD + N)/S total harmonic distortion-plus-noise
to signal ratio
at 0 dB, 1 V (RMS)
fs = 44.1 kHz
85
80
dB
fs = 96 kHz
80
75
dB
at
60 dB, 1 mV (RMS);
A-weighted
fs = 44.1 kHz
36
30
dB
fs = 96 kHz
34
30
dB
S/N
signal-to-noise ratio
Vi = 0 V; A-weighted
fs = 44.1 kHz
90
96
dB
fs = 96 kHz
90
94
dB
αcs
channel separation
100
dB
PSRR
power supply rejection ratio
fripple = 1 kHz;
Vripple(p-p) =1%
30
dB
Digital-to-analog converter
Vo(rms)
output voltage (RMS value)
note 3
850
900
950
mV
Vo
unbalance between channels
0.1
dB
(THD + N)/S total harmonic distortion plus
noise-to-signal ratio
at 0 dB
fs = 44.1 kHz
85
80
dB
fs = 96 kHz
80
71
dB
at
60 dB; A-weighted
fs = 44.1 kHz
37
30
dB
fs = 96 kHz
35
30
dB
S/N
signal-to-noise ratio
code = 0; A-weighted
fs = 44.1 kHz
90
100
dB
fs = 96 kHz
90
98
dB
αcs
channel separation
100
dB
PSRR
power supply rejection ratio
fripple = 1 kHz;
Vripple(p-p) =1%
60
dB
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