ADM1266ACPZ-R7 datasheet(58/62 Pages) AD

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ADM1266

Data Sheet

Rev. A | Page 58 of 62

Table 101. Register 0xEB—DAC_CODE_CONFIGURATION (for Block W)

Byte

Byte Name

R/W

Description

Data length

BLOCK W

Number of bytes of data to write to the ADM1266.

DAC index

BLOCK W

00010 = DAC1.

00011 = DAC2.

00100 = DAC3.

00101 = DAC4.

00110 = DAC5.

00111 = DAC6.

01000 = DAC7.

01001 = DAC8.

01010 = DAC9.

Code parameter

BLOCK W

Refer to Table 102.

[18:3]

DAC Code

BLOCK W

DAC code, Maximum = 16 DAC codes, N = 18 maximum.

Table 102. One Byte of Data for Code Parameter

Bits

Bit Name

R/W

Description

[7:4]

Code index

R/W

A maximum of 16 DAC codes can be programmed to the ADM1266. This index selects which

code to load to the DAC.

[3:1]

Range

R/W

DAC range.

Bits[3:1]

Midcode Voltage (V)

Minimum Voltage

Output (V)

Maximum Voltage

Output (V)

0x00 = 3’b000

0.506

0.202

0.808

0x01 = 3’b001

0.607

0.303

0.909

0x02 = 3’b010

0.809

0.505

1.111

0x03 = 3’b011

1.011

0.707

1.313

0x04 = 3’b100

1.263

0.959

1.565

DAC enable

R/W

DAC enable/disable.

RTS_CONFIGURATION

The RTS_CONFIGUARTION command either sets or reads the real time stamp (RTS) configuration.

Table 103. Register 0xEC—RTS_CONFIGURATION

Bits

Bit Name

R/W

Description

[15:2]

Reserved

Reserved.

RTS enable

R/W

0 is disable RTS, 1 is enable RTS.

XTAL enable

R/W

0 is external crystal oscillator disabled, 1 is external crystal oscillator enabled.

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