參數(shù)資料
型號(hào)： 935260687118
廠商： NXP SEMICONDUCTORS
元件分類： 無(wú)繩電話/電話
英文描述： TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝： PLASTIC, SOT-136, SO-28
文件頁(yè)數(shù)： 31/56頁(yè)
文件大?。?/td> 360K
代理商： 935260687118
2000 May 19
37
Philips Semiconductors
Product specication
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
Notes
1. When this level is reached at rising VDD, the internal reset signal is deactivated. There is no hysteresis in the
switching level, only hysteresis in the time domain.
2. At start-up the output has a pull-up source IOH2 for detection of the resistor options. After initializing the output pull-up
source will be IOH1.
3. MDY/TONE has three modes:
a) In speech mode or DTMF mode: 0.5VDD output.
b) In ringer mode: push-pull output stage.
c) In standby mode: high-impedance output.
4. Related to the low group frequency component (CEPT CS203 compatible).
5. In the event of a valid ringer signal present at pin CE/FDI.
Zo
output impedance
100
500
THD
total harmonic distortion
note 4
25
dB
TRANSMIT CHANNEL (PIN LN)
VHG(LN)(rms)
high group frequency voltage
(RMS value)
RDTMF1 =20k;
RDTMF2 = 2.74 k
353
435
536
mV
VLG(LN)(rms)
low group frequency voltage
(RMS value)
RDTMF1 =20k;
RDTMF2 = 2.74 k
277
341
420
mV
MDY output (pin MDY/TONE)
Vo(p-p)
ringer volume output voltage
(peak-to-peak value)
VDD = 3.3 V; note 5
Key [8]
3.2
V
Key [7]
2.0
V
Key [6]
1.4
V
Key [5]
1.1
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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