A high performance and low power consumption USB DMB receiver

A low power USB DMB (Digital Multimedia Broadcasting) receiver with small size and high performance is reported. The receiver can be plugged in PC via USB port and play the DMB programs through a DMB player software installed on PC. The receiver is designed on a 2-layer PCB board with a small size of 59 mm * 23 mm. Test results showed that the receiver can achieve -99.5 dBm receiving sensitivity and consume only 55 mA current for 384 kbps DMB video receiving and 38 mA for 128 kbps DMB audio receiving. These features make it a suitable solution for portable DMB receiver, especially for laptop-based DMB receiver.