AD9789 Analog Devices, AD9789 Datasheet - Page 32

• Manufacturer Part Number: AD9789
• Description: 14-Bit, 2400 MSPS RF DAC with 4-Channel Signal Processing
• Manufacturer: Analog Devices

Specifications of AD9789

• Resolution (bits): 14bit
• Dac Update Rate: 2.4GSPS
• Dac Settling Time: 13ns
• Max Pos Supply (v): +3.47V
• Single-supply: No
• Dac Type: Current Out
• Dac Input Format: LVDS,Par

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
0x0A
0x0B
0x0C
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
0x0D
0x0E
0x0F
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
0x10
0x11
0x12
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
0x13
0x14
0x15
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
0x16
0x17
0x18
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
0x19
0x1A
0x1B
Bit Name
FTW0[7:0]
FTW0[15:8]
FTW0[23:16]
Bit Name
FTW1[7:0]
FTW1[15:8]
FTW1[23:16]
Bit Name
FTW2[7:0]
FTW2[15:8]
FTW2[23:16]
Bit Name
FTW3[7:0]
FTW3[15:8]
FTW3[23:16]
Bit Name
Q[7:0]
Q[15:8]
Q[23:16]
Bit Name
P[7:0]
P[15:8]
P[23:16]
Description
Frequency tuning word for NCO 0, Bits[7:0]
Frequency tuning word for NCO 0, Bits[15:8]
Frequency tuning word for NCO 0, Bits[23:16]
Description
Frequency tuning word for NCO 1, Bits[7:0]
Frequency tuning word for NCO 1, Bits[15:8]
Frequency tuning word for NCO 1, Bits[23:16]
Description
Frequency tuning word for NCO 2, Bits[7:0]
Frequency tuning word for NCO 2, Bits[15:8]
Frequency tuning word for NCO 2, Bits[23:16]
Description
Frequency tuning word for NCO 3, Bits[7:0]
Frequency tuning word for NCO 3, Bits[15:8]
Frequency tuning word for NCO 3, Bits[23:16]
Description
Rate converter denominator, Bits[7:0]
Rate converter denominator, Bits[15:8]
Rate converter denominator, Bits[23:16]
Description
Rate converter numerator, Bits[7:0]
Rate converter numerator, Bits[15:8]
Rate converter numerator, Bits[23:16]
Rev. A | Page 32 of 76