参数资料
型号: LC7153
元件分类: PLL合成/DDS/VCOs
英文描述: PLL FREQUENCY SYNTHESIZER, 160 MHz, PDIP24
封装: DIP-24
文件页数: 11/11页
文件大小: 167K
代理商: LC7153
LC7153, 7153M
No.4160–9/11
Typical Application
A LC7153 or LC7153M cordless telephone application cir-
cuit is shown in figure 5. The telephone is tuned to channel
1, which has a transmit VCO frequency of 46.610MHz
and a receive VCO frequency of 38.975MHz.
Figure 5. American 10-channel, 46/49 MHz, cordless telephone base station
For fref = 5kHz, the divider ratios are as follows.
NA=
=
=7795 (1E73H)
NB=
=
=9322 (246AH)
NR=
=
1024 (400H)
fIA
fref
RX VCO
fref
38.975MHz
5kHz
fIB
fref
TX VCO
fref
46.610MHz
5kHz
fXIN
2
×fref
10.24MHz
2
×5kHz
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