An integrated receiver with channel selection and image rejection substantially implemented on a single CMOS integrated circuit is described. A receiver front end provides programable attenuation and a programable gain low noise amplifier. Frequency conversion circuitry advantageously uses LC filters...http://www.google.com.tw/patents/US6963110?utm_source=gb-gplus-share專利 US6963110 - System and method for ESD protection
