This mixed signal circuit is a mixer. It can up or down convert a signal. The digital control part can generate internal LO signal with different frequencies, but also can pass an external Lo signal to the analog mixer.
Send analog signal to the input ports and measure the output ports. Also apply external LO or use internal LO source.
Since the user have to bias the in_n and in_p ports with 900-950mV and apply a differential signal in the range of 20mV peak-to-peak I would say a custom interface PCB is needed to use the mixer. TO DO later.
| # | Input | Output | Bidirectional |
|---|---|---|---|
| 0 | ext_lo_en | ||
| 1 | ext_lo_n | ||
| 2 | ext_lo_p | ||
| 3 | int_lo_settings[0] | ||
| 4 | int_lo_settings[1] | ||
| 5 | int_lo_settings[2] | ||
| 6 | |||
| 7 |
ua | analog | Description |
|---|---|---|
| 0 | 4 | in_n |
| 1 | 1 | in_p |
| 2 | 3 | out_p |
| 3 | 2 | out_n |