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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)： | 11/31頁 |
| 文件大?。?/td> | 497K |
| 代理商： | U3810BM |
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TELEFUNKEN Semiconductors
U3810BM
Rev. A1: 19.01.1996
11 (31)
Parameters
Test conditions
Min.
Typ.
Max.
Unit
Fig.
Transmission
Transmit gain (note 1)
on MIC1 / MIC2
on MICX
V
MIC
= 3 mV
rms
MIS
0
0
TX2
1
0
TX1
1
0
TX0
1
0
max. gain
min. gain
V
MICX
= 5 mV
rms
MIS
1
1
TX2
1
0
TX1
1
0
TX0
1
0
max.gain
min. gain
Gain change between two steps (both on
MIC1/MIC2 and on MICX)
V
MIC
= 3 mV
rms
, Bit AGC=1
47.0
39.8
43.0
35.8
48.0
41.0
44.0
37.0
49.0
42.2
45.0
38.2
dB
dB
dB
dB
6
Gain adjustment of micro-
phone amplifier
Transmit gain without AGC
G
T
at 28 mA
G
T
at I
L
= 20 to 28 mA
G
T
at I
L
= 28 to 60 mA
0.8
1.0
1.2
dB
6
TX2
0
0
0
TX1
1
1
1
AT1
TX0
1
1
1
AT0
0
1
0
1
42.6
–0.5
–0.5
44.0
0.0
0.0
45.5
0.5
0.5
dB
6
Gain change between
28 and 60 mA
on MIC1 / MIC2
on MICX
V
MIC
= 3mV
rms
:
(MIS = 0)
0
0
1
1
or V
MICX
= 5 mV
rms
(MIS = 1)
I
L
= 28 mA and 60 mA
V
MIC
= 1.5 mV
rms
, Bit TX6 = 1
GT = max. gain
V
MIC
= 0 (MIS = 0) ISQ = 0
V
MIC
= 0 (MIS = 0) ISQ = 1
V
MICX
= 0 (MIS = 1) ISQ = 1
3.6
4.9
6.3
7.7
4.1
5.35
6.9
8.2
4.6
5.9
7.4
8.7
dB
6
+6 dB delta transmit gain
5.4
6.0
6.6
dB
6
Noise at line
psophometrically weighted
–79
–73
–75
–70
–64
dBmp
6
*Max. gain is without +6 dB function which is especially devoted for DTMF
Muted gain
V
MIC
= 3 mV
rms
(MIS = 0) or
V
MIC
= 5 mV
rms
(MIS = 1)
(at max. and min. gain)
on MIC1 / MIC2
on MICX
Bit IM = 1
Bit IT = 1
V
MIC
= 3 mV
rms
(MIS = 1) or
V
MIC
= 5 mV
rms
(MIS = 0)
65
65
60
60
dB
dB
dB
dB
6
Microphone input
impedance
on MIC1/MIC 2
on MICX
CMRR common mode
rejection ratio
Voltage step on pin 26
when going from transmis-
sion to mute mode
Bit IM from 0 to 1
Dynamic limiter (anti-clipping) CACL = 470 nF, RACL = 6.8 M operational only on MIC1/MIC2
Output voltage swing
(peak to peak value)
1
1
1
V
MIC
= 4 mV
rms
+ 10 dB
Delta output voltage swing
TX2
TX1
TX0
0
0
0
V
MIC
= 9 mV
rms
+10 dB
V
MIC
= 3 mV
rms
(MIS = 0)
V
MICX
= 5 mV
rms
(MIS = 1)
G
T
= at maximum gain
70
35
110
55
65
k
k
dB
6
6
I
L
=28 mA and 60 mA
V
MIC
= 0 (MIS = 0) or
V
MICX
= 0 (MIS = 1)
At maximum gain
–75
+75
mV
6
TX2
TX1
TX0
3.3
4.4
V
pp
6
–200
0
200
mV
pp
6
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