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參數(shù)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(shù)： | 9/17頁 |
| 文件大小： | 230K |
| 代理商： | U3500BM-BFLG3 |
U3500BM
Preliminary Information
Rev. A3, 20-May-98
9 (17)
Parameters
Test Conditions / Pins
Symbol
Min.
Typ.
Max.
Unit
Fig.
Battery Management
Max bat low
Min bat low over switch
DA0 to 6 = 1, RBAT = 1
DA0 to 6 = 27 BIN,
RBAT = 1
DA0 to 6 = 1, RBAT = 0
DA0 to 6 = 0, RBAT = 0
3.7
3.05
3.95
3.2
4.1
3.35
V
V
Max bat high
Min bat high
Adjust step
Max – Min
MINBL – SWOFF
Battery Switch
Off threshold
On threshold
4.75
3.83
3.5
852.5
100
5.05
4.1
7.5
952.5
200
5.25
4.27
11.5
1052.5
300
V
V
mV
mV
mV
DA0 to 6 = 1, RBAT = 1
DA0 to 6 = 27 BIN,
RBAT = 1
2.9
3.1
3.0
3.2
3.1
3.35
V
V
Hysteresis
Switch ron
220
250
35
280
50
mV
DA0 to 6 = 0, RBAT = 0
Max bat low
:
MAXL (battery voltage when all DAC bits are high, low range)
Min bat low
:
MINBL (battery voltage when DAC bits are 001 1011, low range)
Max bat high
:
MAXBH (battery voltage when all DAC bits are high, high range)
Min bat high
:
MINBH (battery voltage when all DAC bits are low, high range)
Adjust step
:
Adjust step
Max – Min
:
MAXBH – MINBH
MINBL – SWOFF
:
MINBL – SWOFF
Off threshold
:
SWOFF (off threshold of the battery
switch)
On threshold
:
SWON (on threshold of the battery
switch)
Hysteresis
:
SWON– SWOFF
Switch ron
:
Switch Ron (resistance of the switch transistor, when switch is “ON”)
LNA
20
18
LNAIN
1 nF
100 pF
200
3 k
RF generator
V
FRF
LNAO
VBATT
11779
Figure 3.
15
16
MIXIN
10 nF
100 nF
50
1.5 k
RF generator
V
FRF
MIXO
11780
11.15 MHz
Figure 4.
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