2. Required Equipment
The following equipment is required to demonstrate the evaluation board:
• One signal generator
• One dual dc power supply: 0–5 V and 0–15 V (or two single supplies)
• 1 oscilloscope (at least two channels)
• Assorted cables, leads and probes as necessary to connect equipment to EVB
• Si823Hx evaluation board (board under test)
• Si823Hx evaluation board user’s guide (this document)
2.1 DC Supply Configuration
1. Set one supply to output 5 VDC.
2. Turn OFF the supply and connect the positive lead to VDDI (J1 pin1 or TP1).
3. Connect the negative lead to GNDI (J3 or TP3).
4. Turn ON the dc power supply.
5. Ensure that LED D1 turns on.
6. Ensure that the current draw is less than 25 mA. If it is larger, this indicates that either the board or Si823Hx has been damaged or
the supply is connected backwards.
7. Set the other supply to output 15 VDC.
8. Turn OFF the supply and connect the positive lead to VDDA (J2 or TP2).
9. Connect the negative lead to GNDA (J4 or TP4).
10. Turn ON the supply.
11. Ensure that LED D2 turns on.
12. Ensure that the current draw is less than 100 mA. If it is larger, this indicates that either the board or Si823Hx has been damaged
or the supply is connected backwards.
2.2 Function Generator
1. Turn ON the function generator with the output disabled.
2. Adjust its output to provide a 500 kHz, 0 to 5 V peak square wave (50 percent duty cycle) to its output.
3. Connect the output of the generator to VIA (TP5, ground on TP6).
4. Ensure a shunt is placed on JP3 between Pins 2 and 3 (connects VIB to GND).
5. If the board has an EN pin, ensure that a shunt is placed on JP4 between Pins 1 and 2 to enable the device. If the board has a DIS
pin, ensure that the shunt is placed between Pins 2 and 3 to enable the device.
6. Enable the output of the waveform generator.
UG367: Si823Hx/8252x-EVB User's Guide • Required Equipment
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [email protected] • www.skyworksinc.com
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Rev. 0.3 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • August 8, 2022
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