Aimed at a range of 2.4GHz wireless applications using ZigBee and Bluetooth low energy technologies, the LFB182G45BG2D280 balanced output matching filter is available from Murata. The filter has been designed specifically for use with wireless connectivity SoCs from Texas Instruments, the CC253x and CC254x for ZigBee and Bluetooth networking respectively. Believed to be the world's smallest filter available, the 6pin device measures 1.6x0.8mm and incorporates the RF circuitry of a matching network, balun and filter. Compared with a traditional inductor and capacitor design, it replaces nine discrete 0402 components. Compared to the original reference design, spurious emissions are improved by 11dB. Harmonic performance is also 20dB better at 2xfc and 3xfc. Unbalanced port impedance is 50Ω and frequency is 2450MHz ±50 MHz.
