modulation and demodulation circuit driver chips

[Tuurbo46]

Hi

Can anybody help with the detail of 2 chips, one tx and the second and rx
chip. After my modulator (this consists of an op-amp and a few R's and C's)
i require a tx chip. We used this chip in a lab at uni but i can not
remeber this part no, or manufacture. Also i would like to know its
matching pair rx. This interfaces straight into a 4 pole butterwurth
demodulator. Requirements of tx and rx:

Transmission of up to 40 metres
pwr supply 5v dc

Thanks

Turbo

 

[Ed ()]

mc 2082 ?
"Tuurbo46" <tuurbo46@yahoo.co.uk> wrote in message
news:d1k65v$fm4$1@newsg3.svr.pol.co.uk...
: Hi
:
: Can anybody help with the detail of 2 chips, one tx and the second and
rx
: chip. After my modulator (this consists of an op-amp and a few R's
and C's)
: i require a tx chip. We used this chip in a lab at uni but i can not
: remeber this part no, or manufacture. Also i would like to know its
: matching pair rx. This interfaces straight into a 4 pole butterwurth
: demodulator. Requirements of tx and rx:
:
: Transmission of up to 40 metres
: pwr supply 5v dc
:
: Thanks
:
: Turbo
:
:
: