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ADRF6755ACPZ-R7 데이터시트(PDF) 33 Page - Analog Devices

부품명 ADRF6755ACPZ-R7
상세설명  100 MHz to 2400 MHz I/Q Modulator with Integrated Fractional-N PLL and VCO
PDF  48 Pages
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ADRF6755ACPZ-R7 데이터시트(HTML) 33 Page - Analog Devices

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Data Sheet
ADRF6755
Rev. B | Page 33 of 48
Table 16. Register CR9 (Address 0x09), Charge Pump
Current Setting
Bit
Description
[7:4]
Charge pump current1
0000 = 0.3125 mA (default)
0001 = 0.63 mA
0010 = 0.94 mA
0011 = 1.25 mA
0100 = 1.57 mA
0101 = 1.88 mA
0110 = 2.19 mA
0111 = 2.50 mA
1000 = 2.81 mA
1001 = 3.13 mA
1010 = 3.44 mA
1011 = 3.75 mA
1100 = 4.06 mA
1101 = 4.38 mA
1110 = 4.69 mA
1111 = 5.00 mA
3
Set to 0
2
Set to 0
1
Set to 0
0
Set to 0
1
Double-buffered. Loaded on a write to Register CR0.
Table 17. Register CR10 (Address 0x0A), Reference
Frequency Control
Bit
Description
7
Set to 01
6
R/2 divider setting1
0 = bypass R/2 divider (default)
1 = select R/2 divider
5
Reference frequency doubler (R-doubler) enable1
0 = disable doubler (default)
1 = enable doubler
[4:0]
5-bit R-divider setting1
00000 = divide by 32 (default)
00001 = divide by 1
00010 = divide by 2
…
11110 = divide by 30
11111 = divide by 31
1
Double-buffered. Loaded on a write to Register CR0.
Table 18. Register CR12 (Address 0x0C), PLL Power-Up
Bit
Description
7
Set to 0
6
Set to 0
5
Set to 0
4
Set to 1
3
Set to 1
2
Power down PLL
0 = power up PLL (default)
1 = power down PLL
1
Set to 0
0
Set to 0
Table 19. Register CR13 (Address 0x0D), Lock Detector Control 2
Bit
Description
7
Set to 1
6
LDCount1 (see Table 7)
5
Set to 1
4
Set to 0
3
Set to 1
2
Set to 0
1
Set to 0
0
Set to 0
Table 20. Register CR14 (Address 0x0E), TXDIS Control
Bit
Description
7
TXDIS_LOCLK
0 = LO clock always running
1 = stop LO clock when TXDIS = 1
6
Set to 0
5
Set to 0
4
Set to 0
3
Set to 0
2
Set to 0
1
Set to 0
0
Set to 0
Table 21. Register CR23 (Address 0x17), Lock Detector Control 1
Bit
Description
7
Set to 0
6
Set to 1
5
Set to 1
4
Lock detector enable
0 = lock detector disabled (default)
1 = lock detector enabled
3
Lock detector up/down count, LDCount0 (see Table 7)
2
Lock detector precision
0 = low, coarse (10 ns)
1 = high, fine (6 ns)
1
Set to 0
0
Set to 0



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