UDA1344 Просмотр технического описания (PDF) - Philips Electronics
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UDA1344 Datasheet PDF : 28 Pages
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Philips Semiconductors
Low-voltage low-power stereo audio
CODEC with DSP features
Product specification
UDA1344TS
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Supplies
VDDA(ADC)
VDDA(DAC)
VDDO
VDDD
IDDA(ADC)
IDDA(DAC)
IDDO
IDDD
ADC analog supply voltage
DAC analog supply voltage
operational amplifier supply voltage
digital supply voltage
ADC analog supply current
DAC analog supply current
operational amplifier supply current
digital supply current
Tamb
ambient temperature
Analog-to-digital converter
operating
ADC power-down
operating
DAC power-down
operating
DAC power-down
operating
DAC power-down
ADC power-down
2.7 3.0 3.6 V
2.7 3.0 3.6 V
2.7 3.0 3.6 V
2.7 3.0 3.6 V
−
9.0 11.0 mA
−
3.5 5.0 mA
−
4.0 6.0 mA
−
25
75
µA
−
4.0 6.0 mA
−
250 350 µA
−
6.0 9.0 mA
−
2.5 4.0 mA
−
3.5 5.0 mA
−40 −
+85 °C
Vi(rms)
(THD + N)/S
input voltage (RMS value)
total harmonic distortion-plus-noise to
signal ratio
S/N
signal-to-noise ratio
αcs
channel separation
Digital-to-analog converter
notes 1 and 2
−
at 0 dB
−
at −60 dB; A-weighted −
Vi = 0 V; A-weighted
−
−
1.0 −
V
−85 −80 dB
−35 −30 dB
95
−
dB
100 −
dB
Vo(rms)
(THD + N)/S
output voltage (RMS value)
total harmonic distortion-plus-noise to
signal ratio
S/N
signal-to-noise ratio
αcs
channel separation
Power performance
notes 3 and 4
−
at 0 dB
−
at −60 dB; A-weighted −
code = 0; A-weighted −
−
900 −
mV
−90 −85 dB
−37 −
dB
100 −
dB
100 −
dB
PADDA
PDA
PAD
PPD
power consumption in record and
playback mode
power consumption in playback mode
power consumption in record mode
power consumption in power-down mode
−
69
−
mW
−
42
−
mW
−
37.5 −
mW
−
17
−
mW
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 is inversely proportional to the supply voltage.
3. The output voltage of the UDA1344TS differs from the output voltage of the UDA1340M.
4. The output of the DAC scales proportionally with the supply voltage.
2001 Jun 29
3
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