electricity86
New Member
Hello,
I have a chip - CC5461A - which measures voltage and current and transmit these measurements to a microcontroller by a SPI protocol.
The CC5461A is a part of a circuit that operates it (this circuit supplies the voltage and current to be measured, and supplies the voltages the CC5461A needs to operate).
When i built this mentioned circuit with through-hole resistors and capacitors, the chip worked fine,
but when i've built the circuit with SMT components, the chip transmitted the microcontroller wrong results.
i might add that at first i used thinner wires in the SMT circuit, but afterwards i replaced them in thicker wires (the ones i used in the through-hole circuit).
Could you please tell me differences between SMT and through-hole components, in any aspect you could think about? (noise, crosstalk, sensitivity, anything).
This could give me ideas of what changes should i make.
Thanks!
I have a chip - CC5461A - which measures voltage and current and transmit these measurements to a microcontroller by a SPI protocol.
The CC5461A is a part of a circuit that operates it (this circuit supplies the voltage and current to be measured, and supplies the voltages the CC5461A needs to operate).
When i built this mentioned circuit with through-hole resistors and capacitors, the chip worked fine,
but when i've built the circuit with SMT components, the chip transmitted the microcontroller wrong results.
i might add that at first i used thinner wires in the SMT circuit, but afterwards i replaced them in thicker wires (the ones i used in the through-hole circuit).
Could you please tell me differences between SMT and through-hole components, in any aspect you could think about? (noise, crosstalk, sensitivity, anything).
This could give me ideas of what changes should i make.
Thanks!
