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參數(shù)資料
| 型號： | MC13109A |
| 廠商： | Motorola, Inc. |
| 英文描述： | UNIVERSAL CORDLESS TELEPHONE SUBSYSTEM IC |
| 中文描述： | 通用無繩電話子系統(tǒng)集成電路 |
| 文件頁數(shù)： | 18/28頁 |
| 文件大小： | 1307K |
| 代理商： | MC13109A |
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MC13109A
18
MOTOROLA RF/IF DEVICE DATA
0
0
1
1
0
1
0
1
1
25
4
4
1
4
25
4
LO2 Out
Tx Reference Frequency
Figure 13. Reference Register Programming Mode
12–b
Programmable
Reference
Counter
÷
25
÷
1
÷
4
LO2 In
Rx Reference Frequency
U.K. Base
U.K. Handset
U.K. Handset
U.K. Base
U.K. Handset
Select
U.K. Base
Select
LO2
Tx Divider
Value
Rx Divider
Value
Application
All but U.K. and Netherlands
U.K. Baseset
U.K. Handset
Netherlands Base and Handset
U.K. Handset
Select
MSB
LSB
12–Bit Reference Counter
U.K. Base
Select
14–Bit Reference Counter Latch
Figure 14. Control Register Bits
MSB
LSB
4–Bit Volume
Control
ALC
Disable
Not
Used
Limter
Disable
Clk
Disable
MPU
Clk1
MPU
Clk0
Stdby
Mode
Rx
Mode
Tx
Mute
Rx
Mute
SP
Mute
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á
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Figure 15. Mute and Disable Control Bit Descriptions
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Clock Disable
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SP Mute
ALC Disable
á
0
á
1
á
Normal Operation
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á
0
Normal Operation
1
0
Normal Operation
á
Automatic Level Control Disabled
á
á
MPU Clock Output Disabled
á
áááááááá
á
á
á
0
1
0
Tx Mute
á
Normal Operation
Speaker Amp Muted
Normal Operation
1
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á
Transmit Channel Muted
á
á
á
Receive Channel Muted
Power Saving Operating Modes
When the MC13109A is used in a handset, it is important
to conserve power in order to prolong battery life. There are
five modes of operation; Active, Rx, Standby, Interrupt and
Inactive. In Active Mode, all circuit blocks are powered. In Rx
mode, all circuitry is powered down except for those circuit
sections needed to receive a transmission from the base. In
the Standby and Interrupt Modes, all circuitry is powered
down except for the circuitry needed to provide the clock
output for the microprocessor. In Inactive Mode, all circuitry is
powered down except the MPU interface. Latch memory is
maintained in all modes. Figure 16 shows the control register
bit values for selection of each power saving mode and
Figure 17 show the circuit blocks which are powered in each
of these operating mode.
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Mode
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Mode
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Power Saving
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