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參數(shù)資料
| 型號： | U3810BM |
| 英文描述： | Multi Standard Feature Phone Integrated Circuit |
| 中文描述： | 多標(biāo)準(zhǔn)功能手機(jī)集成電路 |
| 文件頁數(shù)： | 13/31頁 |
| 文件大?。?/td> | 497K |
| 代理商： | U3810BM |
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TELEFUNKEN Semiconductors
U3810BM
Rev. A1: 19.01.1996
13 (31)
Note 1: transmit gain: G
T
= V
L
/V
MIC
on MIC1/MIC2
G
T
= V
L
/V
MIC
on MICX with the above values of
RAG1 and RAG2
Note 2: Squelch dynamic range: G
T
= G
T0
– G
T1
G
T0
measured at V
MIC
= 1 mV
rms
G
T1
measured at V
MIC
= 160 V
rms
GT
12
30
50 mA
IL
94 7895 e
Parameters
Test conditions
Min.
Typ.
Max.
Unit
Fig.
Receive
G
R
receiving gain
G
R
= V
R*
/V
L
(for normal output)
V
GEN
= 0.3 V
rms
RX2
1
0
RX1
1
0
RX0
1
0
maximum gain
minimum gain
V
GEN
= 0.3 V
rms
I
L
= 28 mA and 60 mA
Attenuation between two steps
(both on REC01/REC02 and on
RECOX)
V
GEN
= 0.3 V
rms
IBAL = 1
3.5
–3.7
14.0
4.5
–2.5
15.0
5.5
–1.3
16.0
dB
dB
dB
7
G
R
= V
R
/V
RECOX
Gain adjustment at
earphone
7
0.8
1.0
1.3
dB
7
Receiving gain without
AGC
G
R
= V
R
/V
L
G
R
at 28 mA
G
R
at 20 mA < I
L
< 28 mA
G
R
at 28 mA < I
L
< 60 mA
G
R
receiving gain
betw. 28 and 60 mA
on RECO1/RECO2
and on RECOX
Bit: AGC =1
Bits RX2
RX1
1
1
1
AR1
0
0
1
1
RX0
1
1
1
AR0
0
1
0
1
1
1
1
–3
–0.5
–0.5
–1.5
0
0
0
0.5
0.5
dB
dB
dB
7
V
GEN
= 0.3 V
rms
Bits
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
Muted gain
V
GEN
= 0.3 V
rms
, I
L
= 28mA and 60mA
(At maximum and minimum gain)
Bit RX6 = 1
5.6
6.1
6.7
dB
7
V
GEN
= 0.3 V
rms
Mute on REC01/REC02
Bit
IR=1
Bit IE1 = IE2 = 1
Bit
IR=1
RECOX
At maximum gain
V
GEN
= 0 V
I
L
= 28 mA and 60 mA
max gain, RX6 = 1 VR = 5 V
pp
min. gain, RX6 = 0 VR = 2 V
pp
65
60
36
dB
dB
dB
7
Noise at earpiece
psophometric weighted
Receiving distortion
150
220
Vp
7
1
3
%
7
Receiver output
impedance on
RECO1/RECO2
(pins 29–30)
Receiver output
impedance on RECOX
(pin 31)
* VR = VRECO1 – VRECO2
V
R
= 50 mV
rms
,
40
65
85
7
V
RECOX
= 50 mV
rms
800
950
1100
7
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