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U3810BM 数据表(PDF) 13 Page - TEMIC Semiconductors

部件名 U3810BM
功能描述  Multi Standard Feature Phone Integrated Circuit
PDF  31 Pages
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制造商  TEMIC [TEMIC Semiconductors]
网页  http://www.temic.de
标志 TEMIC - TEMIC Semiconductors

U3810BM 数据表(HTML) 13 Page - TEMIC Semiconductors

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TELEFUNKEN Semiconductors
U3810BM
Rev. A1: 19.01.1996
13 (31)
D Note 1: transmit gain: GT = VL/VMIC on MIC1/MIC2
GT = VL/VMIC on MICX with the above values of
RAG1 and RAG2
D Note 2: Squelch dynamic range: DGT = GT0 – GT1
GT0 measured at VMIC = 1 mVrms
GT1 measured at VMIC = 160
mVrms
GT
12
30
50 mA
IL
94 7895 e
Parameters
Test conditions
Min.
Typ.
Max.
Unit
Fig.
Receive
GR receiving gain
GR = VR*/VL
(for normal output)
VGEN = 0.3 Vrms
RX2
RX1
RX0
maximum gain
1
1
1
minimum gain
0
0
0
3.5
– 3.7
4.5
– 2.5
5.5
– 1.3
dB
dB
7
DGR = VR/VRECOX
VGEN = 0.3 Vrms
14.0
15.0
16.0
dB
7
Gain adjustment at
earphone
IL = 28 mA and 60 mA
Attenuation between two steps
(both on REC01/REC02 and on
RECOX)
0.8
1.0
1.3
dB
7
Receiving gain without
AGC
GR = VR/VL
GR at 28 mA
DGR at 20 mA < IL <28mA
DGR at 28 mA < IL <60mA
VGEN = 0.3 Vrms
Bit: AGC =1
IBAL = 1
Bits RX2
RX1
RX0
11
1
11
1
11
1
–3
– 0.5
– 0.5
– 1.5
0
0
0
0.5
0.5
dB
dB
dB
7
DGR receiving gain
betw. 28 and 60 mA
on RECO1/RECO2
and on RECOX
VGEN = 0.3 Vrms
Bits
AR1
AR0
00
01
10
11
3.6
4.9
6.3
7.5
4.1
5.5
6.9
8.3
4.6
5.9
7.4
8.7
dB
dB
dB
dB
7
+ 6 dB delta receiving gain
on RECO1/RECO2
and on RECOX
VGEN = 0.3 Vrms, IL = 28mA and 60mA
(At maximum and minimum gain)
Bit RX6 = 1
5.6
6.1
6.7
dB
7
Muted gain
VGEN = 0.3 Vrms
Mute on REC01/REC02
Bit
IR=1
Bit IE1 = IE2 = 1
RECOX
Bit
IR=1
65
60
36
dB
dB
dB
7
Noise at earpiece
psophometric weighted
At maximum gain
VGEN = 0 V
150
220
mVp
7
Receiving distortion
IL = 28 mA and 60 mA
max gain, RX6 = 1 VR = 5 Vpp
min. gain, RX6 = 0 VR = 2 Vpp
1
3
%
7
Receiver output
impedance on
RECO1/RECO2
(pins 29–30)
VR = 50 mVrms,
40
65
85
W
7
Receiver output
impedance on RECOX
(pin 31)
VRECOX = 50 mVrms
800
950
1100
W
7
* VR = VRECO1 – VRECO2



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