Hi,
After a little advice on Schmit trigger IC's. I have a SN74LS14N chip. I've got a signal which is relatively square wave at about 100mV Peak to Peak. I want to take this circuit and make it bounce nice and hard with solid levels in accordance with the input voltage. So a +50mV input would equate to around +5v and a =50mV would equate to -5V. So I'm thinking this is ideal for a schmit trigger circuit?
I understand(perhaps incorrectly) that a schmit trigger will take the input to either the Vcc voltage or to ground depending on the input. - is that correct..? with the IC I hve, what are the trigger voltages which will result in the schmit trigger transitioning from state to state on the output. I read the data sheet but it's a bit complex for simple old me.. here it is : http://www.datasheetcatalog.com/datasheets_pdf/S/N/7/4/SN74LS14N.shtml
appreciate if anyone could confirm my understanding of the schmit trigger.. and if anyone has other ideas on how to achieve the desired output based on the inputs - a fluctuating AC signal (decoded POCSAG code actually) of around 100mVp-p. I'm trying to take this small signal and drive it up to RS-232 levels, whilst cleaning it a little at the same time.
Thanks!
After a little advice on Schmit trigger IC's. I have a SN74LS14N chip. I've got a signal which is relatively square wave at about 100mV Peak to Peak. I want to take this circuit and make it bounce nice and hard with solid levels in accordance with the input voltage. So a +50mV input would equate to around +5v and a =50mV would equate to -5V. So I'm thinking this is ideal for a schmit trigger circuit?
I understand(perhaps incorrectly) that a schmit trigger will take the input to either the Vcc voltage or to ground depending on the input. - is that correct..? with the IC I hve, what are the trigger voltages which will result in the schmit trigger transitioning from state to state on the output. I read the data sheet but it's a bit complex for simple old me.. here it is : http://www.datasheetcatalog.com/datasheets_pdf/S/N/7/4/SN74LS14N.shtml
appreciate if anyone could confirm my understanding of the schmit trigger.. and if anyone has other ideas on how to achieve the desired output based on the inputs - a fluctuating AC signal (decoded POCSAG code actually) of around 100mVp-p. I'm trying to take this small signal and drive it up to RS-232 levels, whilst cleaning it a little at the same time.
Thanks!