AD9789BBCZ Datasheet, PDF (32/76 Pages) Analog Devices – 14-Bit, 2400 MSPS RF DAC with 4-Channel Signal Processing

AD9789
The three NCO 0 frequency tuning word registers together compose the 24-bit frequency tuning word for NCO 0. For more information
about programming these registers, see the Baseband Digital Upconverter section.
Table 22. NCO 0 Frequency Tuning Word Registers (Address 0x0A to Address 0x0C)
Address
Bit Name
Description
0x0A
FTW0[7:0]
Frequency tuning word for NCO 0, Bits[7:0]
0x0B
FTW0[15:8]
Frequency tuning word for NCO 0, Bits[15:8]
0x0C
FTW0[23:16]
Frequency tuning word for NCO 0, Bits[23:16]
The three NCO 1 frequency tuning word registers together compose the 24-bit frequency tuning word for NCO 1. For more information
about programming these registers, see the Baseband Digital Upconverter section.
Table 23. NCO 1 Frequency Tuning Word Registers (Address 0x0D to Address 0x0F)
Address
Bit Name
Description
0x0D
FTW1[7:0]
Frequency tuning word for NCO 1, Bits[7:0]
0x0E
FTW1[15:8]
Frequency tuning word for NCO 1, Bits[15:8]
0x0F
FTW1[23:16]
Frequency tuning word for NCO 1, Bits[23:16]
The three NCO 2 frequency tuning word registers together compose the 24-bit frequency tuning word for NCO 2. For more information
about programming these registers, see the Baseband Digital Upconverter section.
Table 24. NCO 2 Frequency Tuning Word Registers (Address 0x10 to Address 0x12)
Address
Bit Name
Description
0x10
FTW2[7:0]
Frequency tuning word for NCO 2, Bits[7:0]
0x11
FTW2[15:8]
Frequency tuning word for NCO 2, Bits[15:8]
0x12
FTW2[23:16]
Frequency tuning word for NCO 2, Bits[23:16]
The three NCO 3 frequency tuning word registers together compose the 24-bit frequency tuning word for NCO 3. For more information
about programming these registers, see the Baseband Digital Upconverter section.
Table 25. NCO 3 Frequency Tuning Word Registers (Address 0x13 to Address 0x15)
Address
Bit Name
Description
0x13
FTW3[7:0]
Frequency tuning word for NCO 3, Bits[7:0]
0x14
FTW3[15:8]
Frequency tuning word for NCO 3, Bits[15:8]
0x15
FTW3[23:16]
Frequency tuning word for NCO 3, Bits[23:16]
The three rate converter denominator (Q) registers together compose the 24-bit denominator for the rate converter decimation ratio. For
more information about programming these registers, see the Sample Rate Converter section.
Table 26. Rate Converter Denominator (Q) Registers (Address 0x16 to Address 0x18)
Address
Bit Name
Description
0x16
Q[7:0]
Rate converter denominator, Bits[7:0]
0x17
Q[15:8]
Rate converter denominator, Bits[15:8]
0x18
Q[23:16]
Rate converter denominator, Bits[23:16]
The three rate converter numerator (P) registers together compose the 24-bit numerator for the rate converter decimation ratio. For more
information about programming these registers, see the Sample Rate Converter section.
Table 27. Rate Converter Numerator (P) Registers (Address 0x19 to Address 0x1B)
Address
Bit Name
Description
0x19
P[7:0]
Rate converter numerator, Bits[7:0]
0x1A
P[15:8]
Rate converter numerator, Bits[15:8]
0x1B
P[23:16]
Rate converter numerator, Bits[23:16]
Rev. A | Page 32 of 76