參數(shù)資料
型號: UBA1707
廠商: NXP Semiconductors N.V.
英文描述: Cordless telephone, answering machine line interface(無繩電話,電話應(yīng)答機線接口)
中文描述: 無繩電話,應(yīng)答機行界面(無繩電話,電話應(yīng)答機線接口)
文件頁數(shù): 19/36頁
文件大?。?/td> 245K
代理商: UBA1707
1999 Feb 17
19
Philips Semiconductors
Product specification
Cordless telephone, answering machine
line interface
UBA1707
Fig.14 Safe operating area (UBA1707T).
LINE
T
amb
(
°
C)
45
55
65
75
P
tot
(mW)
1000
875
750
625
(1)
(2)
(3)
(4)
When power is delivered to a loudspeaker with R
L
impedance, the curves must be shifted to the left by:
with maximum power dissipated by the loudspeaker amplifier (dotted line given for V
CC
= 5.5 V, R
L
= 16
).
V
ref
V
π
×
2
2
R
L
I
LN
×
×
------------------------------------------
=
The line current value can be calculated from I
LN
value as follows:
I
R
R
+
V
+
SET
where R
SET
is the resistive part of Z
SET
.
I
line
)
V
SLPE
---------------------------------------R
=
handbook, full pagewidth
(mA)
12
30
2
3
4
5
6
8
9
10
11
MGK714
7
50
70
90
110
130
VLN
VSLPE (V)
(1)
(2)
(3)
(4)
no power delivered to the loudspeaker
with power delivered to the loudspeaker
Vref
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