| commit | 09c53b97cbc94cd3603c330d61157a44ff68823f | [log] [tgz] |
|---|---|---|
| author | DaveX13342 <zeweix@andrew.cmu.edu> | Sat Oct 01 19:57:56 2022 +0000 |
| committer | DaveX13342 <zeweix@andrew.cmu.edu> | Sat Oct 01 19:57:56 2022 +0000 |
| tree | ad2c2370b85719f717c85421a5c0ca12c81d4b54 | |
| parent | 3d3d1113fd8a5a1d19676c3f28f1e182f97a5efd [diff] |
VCO: 1:add another instance of VCO and connect to transimission line
2:change the digital input from io_in<14:18> to io_in<15:19>
all change are done in both schematic and layout
!!! todo: please tie another reference current of 40uA to REF2 label in layout!!!
REF:1:move the digital input from gpio_analog<19> to gpio_analog<7>
all change are done in both schematic and layout
Tx_line:1:insert 1 instance Tx_line on the wrapper
2:connect the input of Tx_line to second instance of VCO
!!! todo: Tx_line is only connected one side, please connect the second side(either to a analog output or to VGA)!!!!
| :exclamation: Important Note |
|---|
This is a lab-on-a-chip research project targeted to bring instrumentation near the magnetic new materials. It contains a voltage controlled oscillator(VCO), a bandgap reference(BGR), and a variable gain amplifier (VGA).
VCO specs
Frequency range: 1.71 ~ 9.73GHz
Amplitude: 0.2 ~ 0.5V differential
2nd harmonic < -60dB
3rd harmonic < 60dB
settling time < 6ns
Startup time < 48 ns
BGA specs
Output Vbg = 1.1974V+/-0.6mV (0.05% error) from -20 ~ 100C
TC = -5+/-45ppm V/C
Output current reference = 39.95uA+/-0.11uA (0.27% error) from -20 ~ 100C
TC = -0.001+/-0.007ppm A/C
Refer to README for this sample project documentation.