Single chip radio receiver with one off-chip filter

摘要: The present invention provides an improved single chip radio receiver which has less external components than do previous similar receivers. With the integrated circuit includes also on-chip adaptive filter. is designed for use in a pager only active very short time slot during relative long repeat cycle. Thus filter need remain stable period after its coefficients are adjusted to desired values. same frequency response as from Immediately prior activating receiver, activated adjust parameters of so that matches then using both filters series thereby producing reception. quickly changes characteristics; however, since time, operation system not affected.