ADRF6750 Analog Devices, Inc., ADRF6750 Datasheet - Page 28

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

ADRF6750
REGISTER BIT DESCRIPTIONS
Table 7. Register CR0 (Address 0x00), Fractional Word 4
Bit
7
6
5
4
3
2
1
0
1
Table 8. Register CR1 (Address 0x01), Fractional Word 3
Bit
7
6
5
4
3
2
1
0
1
Table 9. Register CR2 (Address 0x02), Fractional Word 2
Bit
7
6
5
4
3
2
1
0
1
Table 10. Register CR3 (Address 0x03), Fractional Word 1
Bit
7
6
5
4
3
2
1
0
1
Double-buffered. Loaded on the write to Register CR0.
Double-buffered. Loaded on the write to Register CR0.
Double-buffered. Loaded on the write to Register CR0.
Double-buffered. Loaded on the write to Register CR0.
Description
Fractional Word F7
Fractional Word F6
Fractional Word F5
Fractional Word F4
Fractional Word F3
Fractional Word F2
Fractional Word F1
Fractional Word F0 (LSB)
Description
Fractional Word F15
Fractional Word F14
Fractional Word F13
Fractional Word F12
Fractional Word F11
Fractional Word F10
Fractional Word F9
Fractional Word F8
Description
Fractional Word F23
Fractional Word F22
Fractional Word F21
Fractional Word F20
Fractional Word F19
Fractional Word F18
Fractional Word F17
Fractional Word F16
Description
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Fractional Word F24 (MSB)
1
1
1
1
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Table 11. Register CR5 (Address 0x05), 5-Bit Reference
Divider Enable
Bit
7
6
5
4
3
2
1
0
1
Table 12. Register CR6 (Address 0x06), Integer Word 2
Bit
7
6
5
4
3
2
1
0
1
Table 13. Register CR7 (Address 0x07), Integer Word 1 and
Muxout Control
Bit
[7:4]
3
2
1
0
1
Double-buffered. Loaded on the write to Register CR0.
Double-buffered. Loaded on the write to Register CR0.
Double-buffered. Loaded on the write to Register CR0.
Description
Reserved
Reserved
Reserved
5-bit R-divider enable
0 = disable 5-bit R-divider (default)
1 = enable 5-bit R-divider
Reserved
Reserved
Reserved
Reserved
Description
Integer Word N7
Integer Word N6
Integer Word N5
Integer Word N4
Integer Word N3
Integer Word N2
Integer Word N1
Integer Word N0
Description
Muxout control
0000 = tristate
0001 = logic high
0010 = logic low
1101 = RCLK/2
1110 = NCLK/2
Integer Word N11
Integer Word N10
Integer Word N9
Integer Word N8
1
1
1
1
1
1