Variable gain amplifier
AssigneeNXP B.V.
InventorGian Hoogzaad
Life of this patent
Estimating the term…
Abstract
The invention relates to a variable gain amplifier comprising a first attenuator (1) for receiving an input signal (rf_in) and for transmitting a first attenuated input signal to a first amplifier (2) for amplifying the first attenuated input signal and for generating a first amplified signal to a second attenuator (3) for attenuating the first amplified signal and for transmitting a second attenuated signal to a second amplifier (4) for amplifying the second attenuated signal and for generating an output signal (rf_out). The first attenuator (1) is supplied from a first supply voltage source (10). The second attenuator (3) is supplied from a second supply voltage source (30). The first amplifier (2) is supplied from a third supply voltage source (20), and the second amplifier (4) is supplied from a fourth supply voltage source (40).
Claims9
A variable gain amplifier comprising:
- a first attenuator for receiving an input signal and for transmitting a first attenuated input signal to
- a first amplifier for amplifying the first attenuated input signal and for generating a first amplified signal to
- a second attenuator for attenuating the first amplified signal and for transmitting a second attenuated signal to a
- second amplifier for amplifying the second attenuated signal and for generating an output signal,
- wherein,
- the first attenuator is supplied from a first supply voltage source,
- the second attenuator is supplied from a second supply voltage source,
- the first amplifier is supplied from a third supply voltage source, and
- the second amplifier is supplied from a fourth supply voltage source.
Dependencies are inferred from the claim text.