AD9915SLASHPCBZ datasheet(41/51 Pages) AD

41 / 51 page

Data Sheet

AD9915

analog.com

Rev. G | 41 of 51

Table 17. Register Map

(Serial Address)

Bit Range

(Parallel

Address)

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Default

Value

(Hex)1

Rising Digital

Ramp Step Size

[7:0] (0x18)

Rising digital ramp increment step size[7:0]

N/A

[15:8]

(0x19)

Rising digital ramp increment step size[15:8]

N/A

[23:16]

(0x1A)

Rising digital ramp increment step size[23:16]

N/A

[31:24]

(0x1B)

Rising digital ramp increment step size[31:24]

N/A

Falling Digital

Ramp Step Size

[7:0] (0x1C)

Falling digital ramp decrement step size[7:0]

N/A

[15:8]

(0x1D)

Falling digital ramp decrement step size[15:8]

N/A

[23:16]

(0x1E)

Falling digital ramp decrement step size[23:16]

N/A

[31:24]

(0x1F)

Falling digital ramp decrement step size[31:24]

N/A

Digital Ramp

Rate Register

(0x08)

[7:0] (0x20)

Digital ramp positive slope rate[7:0]

N/A

[15:8]

(0x21)

Digital ramp positive slope rate[15:8]

N/A

[23:16]

(0x22)

Digital ramp negative slope rate[7:0]

N/A

[31:24]

(0x23)

Digital ramp negative slope rate[15:8]

N/A

Lower Frequency

Jump Register

(0x09)

[7:0] (0x24)

Lower frequency jump point[7:0]

0x00

[15:8]

(0x25)

Lower frequency jump point[15:8]

0x00

[23:16]

(0x26)

Lower frequency jump point[23:16]

0x00

[31:24]

(0x27)

Lower frequency jump point[31:24]

0x00

Upper Frequency

Jump Register

(0x0A)

[7:0] (0x28)

Upper frequency jump point[7:0]

0x00

[15:8]

(0x29)

Upper frequency jump point[15:8]

0x00

[23:16]

(0x2A)

Upper frequency jump point[23:16]

0x00

[31:24]

(0x2B)

Upper frequency jump point[31:24]

0x00

Profile 0 (P0)

Frequency Tuning

Word 0 Register

(0x0B)

[7:0] (0x2C)

Frequency Tuning Word 0[7:0]

0x00

[15:8]

(0x2D)

Frequency Tuning Word 0[15:8]

0x00

[23:16]

(0x2E)

Frequency Tuning Word 0[23:16]

0x00

[31:24]

(0x2F)

Frequency Tuning Word 0[31:24]

0x00

Profile 0 (P0)

Phase/Amplitude

[7:0] (0x30)

Phase Offset Word 0[7:0]

0x00

[15:8]

(0x31)

Phase Offset Word 0[15:8]

0x00

[23:16]

(0x32)

Amplitude Scale Factor 0[7:0]

0x00

[31:24]

(0x33)

Open

Amplitude Scale Factor 0[11:8]

0x00

AD9915/PCBZ Datasheet(PDF) 41 Page - Analog Devices

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