Selectable input attenuation

Details Selectable input attenuation Selectable input attenuation

2006-02-21

2006-02-21

Le, Dinh T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Amplitude control

C333S08100R, C330S258000

Reexamination Certificate

active

07002391

ABSTRACT:
Mobile terminal design is made simpler by providing an attenuation circuit having a selectable amount of attenuation within an integrated circuit. In one embodiment, a plurality of input pins are provided so as to connect to different points of the attenuation circuit. By selecting a particular input pin, a given amount of attenuation is available between the chosen input pin and the output pin. In a second embodiment, resistors within the attenuation circuit are selectively grounded to vary the amount of attenuation between the input pin and the output pin.

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