參數(shù)資料
型號(hào)： ZL20200LCF
廠商： Zarlink Semiconductor Inc.
英文描述： Dual Band IS136/AMPS Transceiver
中文描述： 雙頻IS136/AMPS收發(fā)器
文件頁(yè)數(shù)： 34/52頁(yè)
文件大?。?/td> 516K
代理商： ZL20200LCF
ZL20200
Data Sheet
34
Zarlink Semiconductor Inc.
2.4.2 TCXO Reference Selection
Bits 20:19 are used to set the device to the required TCXO reference frequency.
2.4.3 Discriminator Output Filtering
Bits 17:14 set up on chip filtering of the FM output signal and are therefore only used in AMPS mode. Two
cascaded filters can be selected and the bandwidth can be set to 25 or 37.5 kHz cut-off. Bits 17,16 (PDF) select the
filters and bits 15,14 set the cutoff frequency.
In IS136 mode Bits <17:14> should be set to 0000. It is recommended that if the additional discriminator filtering is
required in AMPS mode then both filters should be used with 25 kHz bandwidth, i.e. Bits<17:14> should be set
1111.
TCXO<1> Bit 20
TCXO<0> Bit 19
TCXO Frequency (MHz)
0
1
14.4
1
0
19.44
Table 24 - TCXO Reference Selection
<17>
<16>
<15>
<14>
Filter Selection
0
0
X
X
No filters
0
1
X
X
Filter 1 selected
1
0
X
X
Filter 2 selected
1
1
X
X
Filters 1 and 2 selected
X
X
0
0
Both filters 37.5 kHz
X
X
0
1
Filter 1 25 kHz, Filter 2 37.5 kHz
X
X
1
0
Filter 1 37.5 kHz, Filter 2 25 kHz
X
X
1
1
Both filters 25 kHz
Table 25 - FM Discriminator Output Filter Control
相關(guān)PDF資料
PDF描述
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ZL20200LDE 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver
ZL20200LDF 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver
ZL20200LDF1 制造商:Microsemi Corporation 功能描述:
ZL20200LDG 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Dual Band IS136/AMPS Transceiver
ZL20200LDG1 制造商:Microsemi Corporation 功能描述:
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