UBA1707 데이터 시트보기 (PDF) - Philips Electronics
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UBA1707 Datasheet PDF : 36 Pages
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Philips Semiconductors
Cordless telephone, answering machine
line interface
Product specification
UBA1707
140
handbook, full pagewidth
ILN
(mA)
120
no power delivered to the loudspeaker
MGK715
100
(4)
(3)
(2)
(1)
80
∆ Vref
60
40
with power delivered to the loudspeaker
20
2
3
4
5
6
7
8
9
10
11
12
VLN − VSLPE (V)
The line current value can be calculated from ILN value as follows:
Iline = I--L---N-----×-----(---R-----S---E---T----+-----R---R-S---L-S--P-E--E-T--)----+-----V-----L--N-----–----V----S---L---P---E-- where RSET is the resistive part of ZSET.
LINE
(1)
(2)
(3)
(4)
Tamb (°C)
45
55
65
75
Ptot (mW)
666
583
500
416
When power is delivered to a loudspeaker with RL impedance, the curves must be shifted to the left by:
∆Vref = -2----×-----π----2-V---×-C---R-C---2-L----×-----I--L--N-- with maximum power dissipated by the loudspeaker amplifier (dotted line given for VCC = 5.5 V, RL = 16 Ω).
Fig.15 Safe operating area (UBA1707TS).
1999 Feb 17
20
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