SWITCHABLE-LEVEL VOLTAGE SUPPLIES FOR MULTIMODE COMMUNICATIONS
First Claim
1. An apparatus for supplying a voltage to a transmitter circuit, the circuit processing a signal for transmission over a communications channel, the transmitter circuit comprising a mixer for translating a signal to a higher frequency, the transmitter circuit further comprising an amplifier, the apparatus comprising:
- a voltage generation module for generating a supply voltage for the transmitter circuit, the supply voltage being at a first level during a first phase, and a second level during a second phase, the first level being higher than the second level.
1 Assignment
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Accused Products
Abstract
Switchable voltage level supplies for circuitry in a multi-mode communications chipset are disclosed. In an embodiment, a first voltage level is supplied to TX circuitry operating in a first mode having a first set of linearity and/or noise requirements. A second voltage level lower than the first voltage level is supplied to TX circuitry operating in a second mode having a second set of linearity and/or noise requirements looser than the first set of requirements. The first mode may be operation according to the GSM standard, and the second mode may be operation according to the W-CDMA standard.
23 Citations
25 Claims
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1. An apparatus for supplying a voltage to a transmitter circuit, the circuit processing a signal for transmission over a communications channel, the transmitter circuit comprising a mixer for translating a signal to a higher frequency, the transmitter circuit further comprising an amplifier, the apparatus comprising:
a voltage generation module for generating a supply voltage for the transmitter circuit, the supply voltage being at a first level during a first phase, and a second level during a second phase, the first level being higher than the second level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for supplying a voltage to a transmitter circuit for processing a signal for transmission over a communications channel, the transmitter circuit comprising a mixer for translating a signal to a higher frequency, the transmitter circuit further comprising an amplifier, the method comprising:
generating a supply voltage for the transmitter circuit, the supply voltage being at a first level during a first phase, and a second level during a second phase, the first level being higher than the second level. - View Dependent Claims (22, 23, 24, 25)
Specification