Part Number: LMX2571-EP
Other Parts Discussed in Thread: LMX2571EVM,
Hello Team,
1. Here i want make FSK deviation 12.5Khz, in TICS-Pro 
if i give same value , spectum is not modulating as FSK_DEV1_F1 is not negative, negative values is not taking by GUI.
if i can change the raw values,
Give me the values to get the negative 12.5kHz and negative 24kHz.
2. Am using LMX2571EVM but my application IC is LMX2571-EP. any conflict in registers and connecetion diagram ?
Thank you.
John
Hi John,
FSK_DEVx_F1 are register values, not frequency deviation in Hz.
use equation 4 and 6 to calculate the register values for the deviation in Hz.
See datasheet section 8.2.1 for an example.
The difference between EP and non-EP variants are mainly in hardware, software is 99.9% compatible.
thanks for your answer,
for FSK_DEV0_F1 i entered 12500Hz , we need to enter in Hz ?
what to be entered in FSK_DEV1_F1 for 2's compliment?
thanks
--
John
Hi John,
You need to use equation 4 to convert 12500Hz to register value and use equation 6 for opposite polarity.
