UDA1345 Просмотр технического описания (PDF) - Philips Electronics
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UDA1345 Datasheet PDF : 28 Pages
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Philips Semiconductors
Economy audio CODEC
Product specification
UDA1345TS
10 DC CHARACTERISTICS
VDDD = VDDA = VDDO = 3.0 V; fs = 44.1 kHz; Tamb = 25 °C; RL = 5 kΩ; note 1; all voltages referenced to ground
(pins 1, 11, 22 and 27); unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
VDDA(ADC)
ADC analog supply voltage
2.4
3.0
3.6
V
VDDA(DAC)
DAC analog supply voltage
2.4
3.0
3.6
V
VDDD
digital supply voltage
2.4
3.0
3.6
V
IDDA(ADC)
ADC analog supply current
operating mode
−
10
14
mA
ADC power-down
−
600
800
µA
ADC power-down all −
300
800
µA
IDDA(DAC)
DAC analog supply current
operating mode
−
4
7.0
mA
DAC power-down
−
50
150
µA
IDDO(DAC)
DAC operational amplifier supply operating mode
−
current
DAC power-down
−
2.0
3.0
mA
200
400
µA
IDDD
digital supply current
operating mode
−
ADC and DAC
−
power-down
5
8
mA
350
500
µA
Digital input pins (5 V tolerant TTL compatible)
VIH
VIL
VIH(th)
HIGH-level input voltage
LOW-level input voltage
HIGH-level threshold input
voltage
VIL(th)
LOW-level threshold input voltage
Vhys
Schmitt trigger hysteresis voltage
ILI
input leakage current
Ci
input capacitance
3-level input pins (MP2; MP4)
VIH
HIGH-level input voltage
VIM
MIDDLE-level input voltage
VIL
LOW-level input voltage
Digital output pins
VOH
HIGH-level output voltage
IOH = −2 mA
VOL
LOW-level output voltage
IOL = 2 mA
Analog-to-digital converter
Vref(A)
Ro(ref)
Ri
Ci
reference voltage
Vref(A) reference output resistance
input resistance
input capacitance
with respect to VSSA
fi = 1 kHz
2.0
−
−0.5
−
1.3
−
0.9
−
0.4
−
−
−
−
−
5.0
V
+0.8
V
1.9
V
1.35
V
0.7
V
10
µA
10
pF
0.9VDDD −
0.4VDDD −
−0.5
−
VDDD + 0.5 V
0.6VDDD V
+0.5
V
0.85VDDD −
−
V
−
−
0.4
V
0.45VDDA 0.5VDDA 0.55VDDA V
−
24
−
kΩ
−
12
−
kΩ
−
20
−
pF
2002 May 28
18
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