RiK0015A
Differential Voltage to Single-ended Voltage Converter
Input: Voltage, Differential
Header Pin
In-phase, Positive Input (Ipos): H2-6
In-phase, Negative Input (Ineg): H2-5
Quadrature, Positive Input (Qpos): H2-1
Quadrature, Negative Input (Qneg): H2-2
Output: Voltage, Single-ended
Coax
In-phase Voltage Output (I) J7
Quadrature Voltage Output (Q) J5
I Signal Path Attenuation in dB into open load 20 x Log R24 / (R24+R3)
Q Signal Path Attenuation in dB into open load 20 x Log R32 / (R32+R1)
( Attenuation is defined to Differential Vin vs Single Ended Vout )
Changes Required to Convert Module
Remove the following components: For all configurations below!
Component Identifier
R8, R9, R11, R13 Remove these items
Change the following Components: 24 dB attenuation into open load
Component Identifier Value Size
R20, R22, R24, R26, R30, R32 0 Ohm 0603
R24, R32 10 Ohm 0603
R12, R14 51.1 Ohm 0603
R1, R3 150 Ohm 0603
R4, R2 2000 Ohm 0603
Change the following Components: 6 dB attenuation into open load
Component Identifier Value Size
R20, R22, R24, R26, R30, R32 0 Ohm 0603
R1, R3, R24, R32 200 Ohm 0603
R12, R14 51.1 Ohm 0603
R4, R2 2000 Ohm 0603
Change the following Components: 6 dB attenuation into 50 ohms
Component Identifier Value Size
R20, R22, R24, R26, R30, R32 0 Ohm 0603
R1, R3 68.1 Ohm 0603
R24, R32 60.4 Ohm 0603
R12, R14 18.2 Ohm 0603
R4, R2 2000 Ohm 0603
Change the following Components: 26 dB attenuation into 50 ohms
Component Identifier Value Size
R20, R22, R24, R26, R30, R32 0 Ohm 0603
R1, R3 91 Ohm 0603
R24, R32 10 Ohm 0603
R12, R14 41.2 Ohm 0603
R4, R2 2000 Ohm 0603