AD9957SLASHPCBZ datasheet(55/62 Pages) AD

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AD9957

Data Sheet

Rev. E | Page 54 of 61

Table 17. Profile 7, RAM, GPIO Configuration, and GPIO Data Registers

(Serial Address)

Bit Range

(Internal

Address)

Bit 7

(MSB)

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

(LSB)

Default

Value

Profile 7

Single Tone

(0x15)

<63:56>

Open

Amplitude Scale Factor<13:8>

0x00

<55:48>

Amplitude Scale Factor<7:0>

0x00

<47:40>

Phase Offset Word<15:8>

0x00

<39:32>

Phase Offset Word<7:0>

0x00

<31:24>

Frequency Tuning Word<31:24>

0x00

<23:16>

Frequency Tuning Word<23:16>

0x00

<15:8>

Frequency Tuning Word<15:8>

0x00

<7:0>

Frequency Tuning Word<7:0>

0x00

Profile 7

QDUC (0x15)

<63:56>

CCI Interpolation Rate<7:2>

Spectral

Invert

Inverse CCI

Bypass

0x00

<55:48>

Output Scale Factor<7:0>

0x00

<47:40>

Phase Offset Word<15:8>

0x00

<39:32>

Phase Offset Word<7:0>

0x00

<31:24>

Frequency Tuning Word<31:24>

0x00

<23:16>

Frequency Tuning Word<23:16>

0x00

<15:8>

Frequency Tuning Word<15:8>

0x00

<7:0>

Frequency Tuning Word<7:0>

0x00

RAM Register

(0x16)

<31:0>

RAM Word<31:0>

GPIO

Configuration

<15:0>

GPIO Configuration<15:0>

0x00

GPIO Data

<15:0>

GPIO Data<15:0>

0x00

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