| 摘要 |
In a CDMA (code division multiple access) digital receiver and an automatic gain control method thereof, when an RF-processed CDMA analog IF (intermediate frequency) signal is inputted, the analog IF signal is converted into a digital IF signal. The digital IF signal is then digital-demodulated, and a digital-demodulated base band signal is clipped so as to have a level of a digital base band signal preset in a CDMA system. Accordingly it is possible to perform a digital demodulation in a CDMA receiver. In addition, it is possible to perform the same automatic gain control as a CDMA analog receiver by receiving the same input signal (analog IF signal) as the CDMA analog receiver. As a result, the performance of a CDMA receiver is significantly improved.
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