Dear Sir/Madam,

Currently I am designing down-converter[b] for power line carrier application. One of component in down-converter design is [b]analogue mixer. This analogue mixer would be used to mix (RF) input modulated signal from power line (20KHz - 1MHz) with LO clock signal in order to frequency shift input signal in /selectivity filter bandwidth (12KHz -44KHz)./*
However, Power line carrier applications are dynamic and noisy environment. Input SNR /down-converter/(mixer) can be very low down to -20dB and RF input dynamic range 60dB.

So, I would like to ask you for recommendation of analogue mixer which have or is close to the following characteristics:
- SNRout should be very close to SNRin (Noise Figure in range of 1-5dB). Since RF input signal can be very noisy.(e.g. SNR = -20dB).
- On the output *should be only sum and difference. No  RF and LO  frequency*
- RF port:* frequency range: 20KHz -1MHz, dynamic range: 50dB-60dB, double balanced
- *LO port: *frequency range:8KHz -1MHz
- *Output*: frequency range: 10KHz -1MHz, *should consists of only sum and difference, no **No  RF and LO  frequency, no harmonics *

Thank you and Best Regards,
Amir Hasanovic