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參數資料
| 型號： | U3500BM-BFLG3 |
| 英文描述： | Cordless Telephone Signal Processor |
| 中文描述： | 無繩電話信號處理器 |
| 文件頁數： | 4/17頁 |
| 文件大小： | 230K |
| 代理商： | U3500BM-BFLG3 |
U3500BM
Rev. A3, 20-May-98
Preliminary Information
4 (17)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Fig.
Receiver
IF mixer,
f = 10.7 MHz
Input resistance
Input capacitance
Output impedance
Gain GVMIX
Input compression point
Third-order input intercept
point
Carrier breakthrough from
internal LO (11.15 MHz) to
IF output
Carrier breakthrough from
internal LO (11.15 MHz) to
RF input
IF amplifier: RSSI
Input resistance
RSSI-sensitivity
2000
2.5
1200
13
–17
–9
3000
3
1500
15
4000
3.5
1800
17
4
4
4
4
4
pF
Input level 7 mV
rms
G
MIX
dB
dBm
dBm
4
300
V
rms
4
10
V
rms
4
1.6
2
2.5
k
5
VIF = 0 V
rms
starting from 0 increase RSSI-
level until mean of sampled
signal at DACO is
RSSI-level = CON0
0.2
VIF = 25.4 V
rms,
f = 450 kHz
increase RSSI level again
until mean of sampled signal
at DACO is
RSSI-level = CON1
RSSI-sensitivity =
CON1–CON0
0.2.
1
5
RSSI-input voltage
dynamic range
RSSI-level number of
programmable steps
*)
RSSI-level step size in the
logarithmic region
60
65
dB
5
127
5
0.35
0.46
0.6
dB
5
*) RSSI Level Programming (Typical Values)
Input Voltage VIF ( V
rms
)
0
25.4
42.4
424
4240
42400
RSSI Level (Decimal)
5
8
14
54
97
111
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