Patent ID: 7457346
Filing Date: 2008-11-25
Classification: H04B

Abstract:
1. A mixer control subcircuit, comprising: first and second power supply terminals; a CTRLBIASP analog state control terminal; an INBIASP analog state control terminal; a COMMON terminal; BIASN and OUTBIASP state output terminals; a dual-gate transistor having a drain coupled to the BIASN terminal, a first gate coupled to the INBIASP terminal, a second gate coupled to the CTRLBIASP terminal, and a source coupled to the second power supply terminal; a second transistor having a drain coupled to the BIASN terminal, a gate coupled to the COMMON terminal, and a source coupled to the first power supply terminal; a third transistor having a drain, a gate coupled to the BIASN terminal, and a source coupled to the first power supply terminal; a fourth transistor having a gate and a drain coupled to the drain of the third transistor, and a source coupled to the second power supply terminal; a fifth transistor having a drain coupled to the COMMON terminal, a gate coupled to the gate of the fourth transistor, and a source coupled to the second power supply terminal; a sixth transistor having a drain coupled to the OUTBIASP terminal, a gate coupled to the BIASN terminal, and a source coupled to the first power supply terminal; and a seventh transistor having a drain and a gate coupled to the OUTBIASP terminal, and a source coupled to the second power supply terminal.