Need Help on PSK Demodulation Solution

Hi everyone, I have to build a PSK commutation system. The carrier is

1MHz or 2MHz and the required date rate is 10-100Kbps. I can use a DDS AD9835 to produce the transmitter PSK/DPSK/DQPSK signal. However, I find that it$B!G(Bs a problem with the demodulation design. Generally speaking, there are two demodulation methods: non-coherent and coherent demodulation. With non-coherent demodulation, it has a delay module for the reference signal because it is simply a delayed version of the received signal. My question is how to implement the delay without FPGA/DSP chip? Is there any circuit or IC can do this? With coherent demodulation, a carrier recovery circuit is need (Costas loop, etc), is there anyone can recommend appropriate chips (such as phrase detector and VCO)$B!)(BI found that many demodulator chips do not work at a low frequency like this.