It briefly introduced the CXA3556N function, internal structure, pin array and typical apply circuit. The CXA3556N is one-chip integrated IC that processes IF signals of a digital broacast tuner and includes an AGC amplifier circuit ,a mixer circuit,local oscilator circuit and an output amplifier circuit.The package utilizes a 24-pin SSOP suitable for surface mounting.
Key word: AGC amplitier mixer
local oscilator output amplifier