ADRF6750 Analog Devices, Inc., ADRF6750 Datasheet - Page 30

• Manufacturer Part Number: ADRF6750
• Description: 950 Mhz To 1575 Mhz Quadrature Modulator With Integrated Fractional-n Pll And Vco
• Manufacturer: Analog Devices, Inc.

ADRF6750
Table 19. Register CR24 (Address 0x18), Autocalibration
Bit
7
6
5
4
3
2
1
0
Table 20. Register CR27 (Address 0x1B), LO Monitor Output
and External VCO Control
Bit
7
6
5
4
3
2
[1:0]
Table 21. Register CR28 (Address 0x1C), Internal VCO
Power-Down
Bit
7
6
5
4
3
2
1
0
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Disable autocalibration
0 = enable autocalibration (default)
1 = disable autocalibration
Description
Reserved
Reserved
Reserved
Reserved
External VCO control
0 = internal VCO selected
1 = external VCO selected
Power up LO monitor output
0 = power down (default)
1 = power up
Monitor output power into 50 Ω
00 = −24 dBm (default)
01 = −18 dBm
10 = −12 dBm
11 = −6 dBm
Description
Reserved
Reserved
Internal VCO power-down
0 = power up (default)
1 = power down
Reserved
Reserved
Reserved
Reserved
Reserved
Rev. 0 | Page 30 of 40
Table 22. Register CR29 (Address 0x1D), Modulator
Bit
7
6
5
4
3
2
1
0
Table 23. Register CR30 (Address 0x1E), Attenuator
Bit
7
6
[5:0]
Table 24. Register CR33 (Address 0x21), Revision Code
Bit
7
6
5
4
3
2
1
0
1
Read-only register.
Description
Reserved
Reserved
Attenuator A5 to Attenuator A0
000000 = 0 dB
000001 = 1 dB
000010 = 2 dB
…
011111 = 31 dB
110000 = 32 dB
110001 = 33 dB
…
111101 = 45 dB
111110 = 46 dB
111111 = 47 dB
Description
Revision code
Revision code
Revision code
Revision code
Revision code
Revision code
Revision code
Revision code
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Power up modulator
0 = power down (default)
1 = power up
1