How to do Lock-in measurement with external signal,"sine wave," to act as a reference by using ADA2200.

Hi,
I am Shirokawa.

I would like to ask questions considering how to do the settings of lock-in measurement wit sine wave by using ADA2200.
There is ADA2200, and active filter module, which can generate sin wave from Pulse wave.

I read the web page below, and I found Figure 7 and concering document, lock-in amplifier implementation with the ADA2200,
but that is not what I would like to do.
https://www.analog.com/en/analog-dialogue/articles/synchronous-detectors-facilitate-precision.html

I would like to know how to do Lock-in measurement with external signal,"sine wave," to act as a reference by using ADA2200.

The "sine wave" is generated from the pulse wave from ADA2200 "RCLK" port, by using, active filter module (Low path filter mode).

I would like to ask questions, below.

1. How can I do to perform Lock-in measurement with external signal,"sine wave," to act as a reference by using ADA2200?
 
2. Is there any necessary device, other than ADA2200, and active filter module?

I am using ADA2200SDP-EVALZ, and EVAL-SDP-CB1Z.
The frquency is around 2kHz to 20kHz.
And  amplitude is 1V to 5V.

Best regards.

Masanori Shirokawa
Tianma Japan, Ltd.