ADAV4601 System Design Document
Confidential Information
Rev.1 August 2009
Analog Devices
Page 44
2.
Convert this decimal number to X.23 format by multiplying by 2
23
. (This simplifies the conversion to Hex
that would otherwise be difficult due to the fraction)
1.995262315*2
23
= 16737473
3.
Then simply convert this 5.23 decimal number to Hexadecimal.
0x00FF64C1
4.
Write this value to the registers.
34 0114 00FF64C1
The same idea applies to other 28-bit words that are spread over two registers.