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參數(shù)資料
| 型號： | UBA2051T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/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 |
| 文件頁數(shù)： | 4/52頁 |
| 文件大小： | 292K |
| 代理商： | UBA2051T |
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2000 May 19
4
Philips Semiconductors
Product specification
One-chip telephone ICs with speech,
dialler and ringer functions
UBA2050(A); UBA2051(A;C)
QUICK REFERENCE DATA
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Speech/transmission part
I
line
line current operating range
normal operation
with reduced performance
I
line
= 15 mA
V
CC
= 3.6 V
I
P
= 0 mA
11
1
4.05
4.35
1.25
3.6
140
11
4.65
1.5
mA
mA
V
mA
V
V
LN
I
CC
V
CC
DC line voltage
internal current consumption
supply voltage for internal circuitry
(unregulated)
regulated supply voltage for peripherals
V
DD
speech mode;
I
DD
=
2.6 mA
ringer mode; I
DD
= 75 mA
3.0
3.3
3.6
V
3.0
43.2
3.3
44.2
3.6
2.6
45.2
V
mA
dB
I
DD
G
v(TX)
available supply current for peripherals
typical voltage gain for microphone
amplifier
typical voltage gain for receiving amplifier
gain setting range for earpiece amplifier
gain control range for microphone and
receive amplifiers
gain reduction for microphone and receive
amplifiers
V
MIC
= 4 mV (RMS)
G
v(RX)
G
v(QR)
G
v(trx)
V
IR
= 4 mV (RMS)
R
E1
= 100 k
I
line
= 85 mA; referenced to
I
line
= 15 mA
in DTMF mode
32.4
14
33.4
6.0
34.4
+12
dB
dB
dB
G
v(trx)(m)
80
dB
Dialler part
V
HG(LN)(rms)
high group frequency voltage (RMS value)
on line
low group frequency voltage (RMS value)
on line
pre-emphasis of group
total harmonic distortion
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
G
V
THD
1.5
2.0
25
2.5
dB
dB
Ringer part
f
ring
ringer detection frequency
13
Hz
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