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參數(shù)資料
| 型號： | AMIS-52150 |
| 英文描述： | Low-Power Transceiver with Clock and Data Recovery |
| 中文描述： | 低功耗收發(fā)器時鐘和數(shù)據(jù)恢復 |
| 文件頁數(shù)： | 7/25頁 |
| 文件大小： | 900K |
| 代理商： | AMIS-52150 |
AMIS-52150
Low-Power Transceiver with Clock and Data Recovery
Data Sheet
8.2 VCO1, VCO2, Voltage Controlled Oscillator Pins
The VCO1 and VCO2 pins connect a parallel combination of a capacitor and an inductor to the AMIS-52150 internal voltage controlled
oscillator (VCO). The external LC (parallel inductor and capacitor) circuit sets the frequency of the internal VCO. The VCO frequency
must be set to twice the value of the desired TX or RX frequency. Typical components for the tuning of the VCO at 402MHz are shown
in Figure 4. The range of the VCO frequency is from 600MHz to 1536MHz.
The voltage on these pins can be used to determine proper operation of the PLL/VCO circuits. For further details, refer to the
application note titled “First Time Users Guide to working with the Transceiver IC”.
Table 11: VCO Control Registers
VCO/PLL Control Registers
Register (HEX)
Name
Bits
States
Comments
00
01
10
11
000
001
010
011
100
101
110
111
0
Divider is 64
PLL Divider
7
1
Divider is 128
*Denotes the normal value
20uA
25uA
50uA*
100uA
180uA
220uA
260uA
300uA
340uA*
380uA
420uA
460uA
Charge Pump
0,1
VCO Current
2,3,4
0x06
Figure 4: Typical Components for VCO Tuning at 402MHz
7
AMI Semiconductor
– Apr. 07 – M-20535-006
www.amis.com
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