W3011
Description
The W3011 1 GHz Quadrature Modulator is a monolithic integrated circuit that provides direct -π/4 RFOUT ∑ φ +π/4 Q LOL IN 50 Ω APC EXTERNAL FILTER OR DIRECT LO INPUT Figure 1.
Key Features
- The phase shifter splits the LO signal into two carriers with 90° phase separation and equal amplitude
- These signals are fed to the in-phase (I) and quadrature-phase (Q) double-balanced mixers
- The resulting signals are summed and fed into the output amplifier
- This amplifier can provide 0 dBm linear output power, minimum, into a 50 Ω load
- The output power can be attenuated up to 50 dB by applying a control voltage to the APC input
- Nominally, the output power is at maximum (+3 dBm) with VAPC > 2.2 V, and at minimum (-50 dBm) with VAPC < 0.8 V
- I BIAS AND CONTROL VCC ENABLE GROUND LOH IN 50 Ω
