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CC1021-RTR1 数据表(PDF) 44 Page - Texas Instruments

部件名 CC1021-RTR1
功能描述  Single Chip Low Power RF Transceiver for Narrowband Systems
PDF  91 Pages
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

CC1021-RTR1 数据表(HTML) 44 Page - Texas Instruments

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Not Recommended for New Designs NRND
CC1021
SWRS045D – JANUARY 2006 – REVISED JANUARY 2015
www.ti.com
Figure 5-25. Typical Optimum PA Load Impedance, 868/915 MHz.
The frequency is swept from 300 MHz to 2800 MHz.
Values are listed in Table 5-10
Table 5-10. Impedances at the First 3 Harmonics
(868/915 MHz Matching Network)
FREQUENCY
REAL
IMAGINARY
(MHz)
(Ohms)
(Ohms)
868
15
24
915
20
35
1736
1.5
18
1830
1.7
22
2604
3.2
44
2745
3.6
45
5.12 Frequency Synthesizer
5.12.1 VCO, Charge Pump, and PLL Loop Filter
The VCO is completely integrated and operates in the 1608 to 1880 MHz range. A frequency divider is
used to get a frequency in the UHF range (402 to 470 and 804 to 960 MHz). The BANDSELECT bit in the
ANALOG register selects the frequency band.
The VCO frequency is given by Equation 24.
44
Detailed Description
Copyright © 2006–2015, Texas Instruments Incorporated
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