LTC5598 PHASE SHIFTER

Question

I think I can use the LTC5598 as a phase shifter, but if I want to output 13.56MHz RF output with a phase change of XX&deg; to RF input 13.56MHz, 
 what signals should I input to BBPI, PPMI, BBPQ and PPMQ? 
 
 0deg･･･　BBPI(+)：1.0V、BBMI(-)：0.0V、BBPQ(+)：0.5V、BBMQ(-)：0.5V 
 90deg･･･　BBPI(+)：0.5V、BBMI(-)：0.5V、BBPQ(+)：1.0V、BBMQ(-)：0.0V 
 180deg･･･　BBPI(+)：0.0V、BBMI(-)：1.0V、BBPQ(+)：0.5V、BBMQ(-)：0.5V 
 270deg･･･　BBPI(+)：0.5V、BBMI(-)：0.5V、BBPQ(+)：0.0V、BBMQ(-)：1.0V 
 We are considering this as an alternative response to the discontinuation of production. Please reply to the above question.

Namratha · Accepted Answer

Hi, 
 If LTC5598 is used as a phase shifter, I/Q inputs are DC. If AC signals are applied to the I/Q inputs, it becomes a vector modulator. You should apply DC that is listed and by changing the differential DC voltage, it can give some control to the output amplitude.)

Partner Forums

Partner Libraries

Products Mentioned

LTC5598 PHASE SHIFTER