AD9546SLASHPCBZ datasheet(190/205 Pages) AD

190 / 205 page

AD9546

Data Sheet

Rev. 0 | Page 190 of 205

Multidevice Configuration Example

Consider two AD9546 devices (Device 1 and Device 2) that

share a single EEPROM and assume both devices have a

common PLL0 configuration but differing PLL1 configurations.

A template for an EEPROM sequence that accomplishes this

configuration is shown in Table 111.

The sequence relies on conditional processing to differentiate

between Device 1 and Device 2. Therefore, the user must

program the condition ID of both devices prior to executing an

EEPROM download. Specifically, the user must program

Bits[3:0] of Register 0x2E01 in Device 1 with a condition ID of

1 and in Device 2 with a condition ID of 2.

Table 111. Template for a Multidevice EEPROM Sequence

Instructions

Comment

0x00 to 0x7F

A sequence of register transfer instructions

associated with the PLL0 configuration

common to both devices

0xB1

Apply Condition 1

0x00 to 0x7F

A sequence of register transfer instructions

associated with the PLL1 configuration

specific to Device 1

0xB0

Clear the condition map

0xB2

Apply Condition 2

0x00 to 0x7F

A sequence of register transfer instructions

associated with the PLL1 configuration

specific to Device 2

0xB0

Clear the condition map

0x80

IO update

0xFF

End of sequence

AD9546/PCBZ Datasheet(PDF) 190 Page - Analog Devices

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