The MC13159 is a wideband FM IF subsystem that is designed for high performance data and digital applications. Excellent high frequency performance is achieved, with low cost, through the use of Motorola's RF bipolar process. The MC13159 includes a mixer, local oscillator buffer amplifier, IF amplifier, limiter amplifier and RSSI functions. The mixer is useful for a 240 MHz input used in a singleended/balanced differential configuration. The IF and limiter amplifier are separated so that an external filter can be used in series, or connected directly with an external capacitor. The RSSI output is derived by summing the output of both the IF and Limiter sections. An enable control is provided to power down the IC for power management in battery powered applications. Suitable applications include PHS, DECT, PDC, and PCS telephones, wideband wireless data links, and other battery powered radio systems. Designed for PHS Applications