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參數(shù)資料
型號(hào)： UBA2051AT
廠商： NXP SEMICONDUCTORS
元件分類： 無(wú)繩電話/電話
英文描述： One-chip telephone ICs with speech, dialler and ringer functions
中文描述： TELEPHONE MULTIFUNCTION CKT, PDSO28
封裝： PLASTIC, SOT-136, SO-28
文件頁(yè)數(shù)： 37/52頁(yè)
文件大小： 292K
代理商： UBA2051AT
2000 May 19
37
Philips Semiconductors
Product specification
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
Notes
1.
When this level is reached at rising V
DD
, the internal reset signal is deactivated. There is no hysteresis in the
switching level, only hysteresis in the time domain.
At start-up the output has a pull-up source I
OH2
for detection of the resistor options. After initializing the output pull-up
source will be I
OH1
.
MDY/TONE has three modes:
a) In speech mode or DTMF mode: 0.5V
DD
output.
b) In ringer mode: push-pull output stage.
c) In standby mode: high-impedance output.
Related to the low group frequency component (CEPT CS203 compatible).
In the event of a valid ringer signal present at pin CE/FDI.
2.
3.
4.
5.
Z
o
THD
output impedance
total harmonic distortion
100
25
500
dB
note 4
T
RANSMIT CHANNEL
(
PIN
LN)
V
HG(LN)(rms)
high group frequency voltage
(RMS value)
low group frequency voltage
(RMS value)
R
DTMF1
= 20 k
;
R
DTMF2
= 2.74 k
R
DTMF1
= 20 k
;
R
DTMF2
= 2.74 k
353
435
536
mV
V
LG(LN)(rms)
277
341
420
mV
MDY output (pin MDY/TONE)
V
o(p-p)
ringer volume output voltage
(peak-to-peak value)
V
DD
= 3.3 V; note 5
Key [8]
Key [7]
Key [6]
Key [5]
3.2
2.0
1.4
1.1
V
V
V
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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