參數(shù)資料
型號(hào)： 935261790118
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PDSO28
封裝： 5.30 MM, PLASTIC, SSOP-28
文件頁(yè)數(shù)： 9/31頁(yè)
文件大小： 199K
代理商： 935261790118
2000 Feb 04
17
Philips Semiconductors
Preliminary specication
Low-voltage low-power stereo audio
CODEC with DSP features
UDA1344TS
Notes
1. All power supply pins (VDD and VSS) must be connected to the same external power supply unit.
2. When higher capacitive loads must be driven, a 100
resistor must be connected in series with the DAC output in
order to prevent oscillations in the output operational amplifier.
Digital outputs
VOH
HIGH-level output voltage
IOH = 2 mA
0.85VDDD
V
VOL
LOW-level output voltage
IOL =2mA
0.4
V
Three-level inputs: pins MP2 and MP4
VIH
HIGH-level input voltage
0.9VDDD
VDDD + 0.5
V
VIM
MIDDLE-level input voltage
0.4VDDD
0.6VDDD
V
VIL
LOW-level input voltage
0.5
0.1VDDD
V
Analog-to-digital converter
Vref(A)
reference voltage
referenced to
VSSA(ADC)
0.45VDDA
0.5VDDA
0.55VDDA
V
Ro(refA)
output resistance on pin Vref(A)
24
k
Ri
input resistance
fi = 1 kHz
9.8
k
Ci
input capacitance
20
pF
Digital-to-analog converter
Vref(D)
reference voltage
referenced to
VSSA(DAC)
0.45VDDA
0.5VDDA
0.55VDDA
V
Ro(refD)
output resistance on pin Vref(D)
28
k
Ro
output resistance of DAC
0.13
3.0
Io(max)
maximum output current
(THD + N)/S < 0.1
%; RL =5k
0.22
mA
RL
load resistance
3
k
CL
load capacitance
note 2
200
pF
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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