Paging amplifier for a key telephone system

Parallel preamplifier and equalizer

Parasitic capacitance compensation in CMOS-switched active filte

Parasitic insensitive switched capacitor filter

Parellel-connection of semiconductor systems with an arrangement

Phase-compensated filter circuit with reduced power consumption

Phonograph preamplifier network with infrasonic cutoff response

Phonograph preamplifier network with infrasonic cutoff response

Photo sensor with monolithic differential amplifier

Photoelectric conversion apparatus with shielded cell

Polar leapfrog filter

Polarization independent optical amplifier apparatus

Polarization independent semiconductor optical amplifier

Pole quality factor (Q) enhancement technique for notch filters

Portable voice communication system

Positive feedback biquad filter

Post amplifier array integrated circuit

Power amplification circuit and communication device using...

Power amplification circuit and communication device using...

Power amplifier apparatus having over-current protection functio