SI838XISO-KIT

UG206: Si838xISO-EVB User's Guide This user's guide explains the features of the Si838xISO-EVB, which is designed for the evaluation of the Si838x part family and its recommended bill of materials. The Si838x product family is a set of eight-channel isolators, rated to 2.5 kVrms, which utilize LED emulator inputs to drive the isolation channel. Various configurations, including the number of high speed (2 Mbps) channels and output types (SPI or Parallel), are available per the ordering guide in the Si838x data sheet. The Si838xISO-EVB is populated with an Si8384P and three different input networks, each representing a recommendation derived from the respective IEC 61131-2 digital input types at 24 V dc. KEY POINTS • Discusses kit contents. • Provides IEC 61131-2 Recommended Bill of Materials. • Demonstrates System-Level Transition Values. • Displays EVB Schematic and Layout. • Demonstrates Timing Characteristics. The Si838xISO-EVB allows designers to quickly evaluate the Si8384P's functionality and capabilities by driving either 24V digital logic signals into the test-points labeled "EXT" or 2V signals into the remaining test-points. For more Si838x information, visit the Skyworks web site at www.skyworksinc.com. The product data sheet and application notes should be referenced to facilitate designs. Si838xISO-EVB 1 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 1 UG206: Si838xISO-EVB User's Guide • Si838x as a PLC Digital Input Module 1. Si838x as a PLC Digital Input Module The Si838xISO-EVB is populated with a Si8384P unit, providing 8 parallel outputs, 4 channels which are high-speed and 4 channels which are low-speed. Further, the EVB combines the Si838x LED emulator inputs with two-resistor input networks to form PLC digital input modules per IEC 61131-2, as illustrated in the figure below. The Si838xISO-EVB has 2 channels configured for both Type-1 and Type-2, and 4 channels configured for Type-3. For more information on how to select an input network based on system constraints, view Application Note 970: Si838x Design Guide. PLC Digital Input Module Field PLC Si838xP IIN Sensor Or Switch R2 24V DC Field Potential VD C1 2.2nF High Speed Channels Only High-side Resistor R1 AHx Input Isolation Barrier VIN uController VDD VDD BHx Output ID Status Lamp LED Low-side Resistor COM Input Current Limit Resistor GND R3 D2 GND Figure 1.1. The Schematic for a Single Si838xP Channel Configured as a PLC Input Module in a 24 V DC System 2 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 2 UG206: Si838xISO-EVB User's Guide • Kit Contents and Required Equipment 2. Kit Contents and Required Equipment The Si838x Evaluation Kit contains the following items: • Si838xISO-EVB evaluation board as shown on the front page. • Si8384P-IU, 8 Channel (4 High Speed, 4 Low-Speed), 2.5 kVrms, 20-pin QSOP Body 2.1 Required Equipment The following equipment is required to demonstrate the evaluation board: • (Supply A) One DC Power supply 24V, 100mA • (Supply B) One DC Power supply 2.5-5.5V, 100mA • Two banana-to-test clip cables to supply signal and power to the input side of the board • Two banana-to-wire cables to supply power to the output side of the board • One 2-pin header shunt (included) 2.2 Optional Equipment The following equipment is optional and can be used to demonstrate dynamic signally functionality of the evaluation board including signal propagation statistics: • One Signal generator (capable of sourcing 2mA) • Two BNC Coaxial cables • One BNC splitter • One BNC to test-clip connector • One 2-Channel Oscilloscope • One 10x Voltage Probe 3 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 3 UG206: Si838xISO-EVB User's Guide • Background: Understanding Si838x and System Transitions 3. Background: Understanding Si838x and System Transitions The Si838x LED emulators have built-in hysteresis around the input threshold, as illustrated in the figure below. Si838x Input I – V Relationship VF VF(ON) Transition 1 (Tr1): Low to High VHys VF(OFF) = VF(ON) - VHys Device On, Bx = 1 Device Off, Bx = 0 Device Off, Bx = 0 Time IF IF(TH) IHys IF(OFF) = IF(TH) - IHys Transition 2 (Tr2): High to Low Time Figure 3.1. Illustration of input hysteresis for the Si838x and the definitions IF(OFF) and VF(OFF) When the Si838x inputs are combined with the two resistor input network, the system transitions as shown in the figure below. VIN Device On System I-V Curve VTR1 VTR2 TR1 Hysteresis Region Device Off Hysteresis Region TR2 Device Off Device On ITR2 ITR1 IIN Figure 3.2. Illustration of the system level transition points and the hysteresis region between them A more detailed exploration of this topic can be found in Application Note 970, however this evaluation board serves to demonstrate the values of TR1 and TR2 per the recommended bill of materials. 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 4 UG206: Si838xISO-EVB User's Guide • Demonstration and Hardware Setup 4. Demonstration and Hardware Setup This section demonstrates the static and dynamic properties of the Si838xISO-EVB reference design. The first demonstration allows the user to evaluate system-level input voltage and current pairs in static situations. Meanwhile, the second demonstration, dynamic switching, allows the user to evaluate the timing characteristics of the Si838x. 4.1 Static Signaling Demonstration 4.1.1 Powering the Board Perform the following steps to set up and power the Si838xISO-EVB. 1. Remove all shunts. 2. Power Side-B a. Supply 5.0V from Supply B to VDD and GND on the terminal block, matching GND. i. Alternatively supply 5.0V power via clips at TP14 and GND at TP15. b. LED, D1, will light up, confirming power is supplied. Figure 4.1. EVB--Powered Up 5 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 5 UG206: Si838xISO-EVB User's Guide • Demonstration and Hardware Setup 4.1.2 Defaults/Failsafes The default output signal of the Si8384P is a logic LOW, and this occurs when no power/signal is being supplied to the respective input (for example, it is left floating). 1. Clear all signal test points on Side-A, thus floating the inputs. 2. Sequentially shunt each output, BH1-B4 via JP1-JP8, respectively a. Note that the respective LEDs D2-D9 remain off. Figure 4.2. EVB powered up without Side-A power or signal 3. Power Side-A a. Side-A is powered on a per-channel basis from the input current and voltage across the LED emulator. This will be covered in the following section. 6 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 6 UG206: Si838xISO-EVB User's Guide • Demonstration and Hardware Setup 4.1.3 Per Input Type Transition/Static Signaling See Figure 4.1 EVB--Powered Up on page 5 1. Place a shunt across JP1, connecting output BH1 to D2. 2. Connect Supply A across AH1_EXT at TP1 and COM at TP28. a. Increment the voltage from 0V to 24V and note the voltage and current when BH1 D2 first lights up Note: The voltage and current combination at which the LED turned on is TR1, b. Decrement the voltage from 24V to 0V and note the voltage and current when BH1 D2 first turns off. Note: The voltage and current combination at which the LED turned off is TR2. 3. Repeat Step 2 for all AHX and AX channels. a. The I-V values for TR1 and TR2 will vary from type to type. Figure 4.3. EVB configured for static signal demonstration 7 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 7 UG206: Si838xISO-EVB User's Guide • Demonstration and Hardware Setup 4.2 Dynamic Signal Demonstration (Optional) N.B. Make sure that your function generator can source approximately 2mA of current at 2.0V to drive the Si838x inputs directly. The function generator will bypss the IEC recommended bill of materials in this demonstration. See the figure below. 1. Remove all shunts and clear all test points. 2. Set up signal generator and oscilloscope. a. Generate a 2 Vpk-pk square wave at 100 kHz on the signal generator. b. Split the signal generator output to two separate BNC cables via the splitter. c. Attach one BNC cable end to oscilloscope Channel 1 and configure the channel for 1x gain. d. Connect the remaining BNC cable end to the BNC-to-test-clip adapter. e. Attach the 10x oscilloscope probe to oscilloscope Channel 2 and configure the channel for 10x gain. 3. Apply signal to board. a. Clip the signal generator's output to AH1 (TP4) relative to COM (via either TP13 or TP28). b. Connect the oscilloscope probe to the output BH1 (TP5). c. Apply a jump across JP1 and observe D2 lighting up at 100 kHz. 4. Observe Channel 1 (input-AH1) and Channel 2 (output-BH1) on the oscilloscope for various parameters such as skew and jitter. 5. Repeat steps 3 and 4 for all channels. Note: The AHx high-speed channels have a maximum signal frequency of 1 MHz, while the Ax low-speed channels have a maximum input frequency of 100 kHz. Figure 4.4. EVB Configured for Dynamic Signal Demonstration Without Enable 8 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 8 UG206: Si838xISO-EVB User's Guide • Schematic 5. Schematic Figure 5.1. Si838xISO-EVB Schematic 9 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 9 UG206: Si838xISO-EVB User's Guide • Layout 6. Layout Figure 6.1. EVB─Top Silk Figure 6.2. EVB─Bottom Silk 10 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 10 UG206: Si838xISO-EVB User's Guide • Layout Figure 6.3. EVB─Top Copper Figure 6.4. EVB─Bottom Copper 11 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 11 UG206: Si838xISO-EVB User's Guide • Bill of Materials 7. Bill of Materials Volts Tol. Type PCB Footprint Mfr Part # Mfr 1 µF 50 V ±10% X7R C0805 CL21B105K BFNNNE Samsung C4, C6, C8, C10 2.2 nF 50 V ±10% C0G C0805 C0805C0G5 Venkel 00-222K 1 C3 10 µF 50 V ±20% X7R C1210 C1210X7R5 Venkel 00-106M 5 1 D1 RED 25 mA 1.9 V SMT, ChipLED LEDHSMXC170 HSMCC170 Avago 6 8 D2, D3, D4, D5, D6, D7, D8, D9 Amber 25 mA 1.9 V SMT, ChipLED LEDHSMXC170 HSMAC170 Avago 7 1 J1 CONN TRBLK 2 TERM BLK CONN-1 X2-TB 1729018 Phoenix 8 8 JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8 Jumper Header CONN1 X2 TSW-102-0 7-T-S Samtec 9 1 JS1 Jumper Shunt Place over JP1 Shunt N/A| SHUNT SNT-100BK-T Samtec 10 1 LB1 OPN: Si838xISO-EVB Place by SL POLYIMIDE, WHITE PTL-14477 LABELSi838xISOEVB Skyworks 11 4 MH1, MH2, MH3, MH4 4–40 HDW MH-125 NP| MH-125 NSS-4-4-01 Richco Plastic 12 1 PCB1 Si838x EVB REV 1.0 BARE PCB N/A Si838x EVB REV 1.0 Skyworks 13 9 R1, R18, R19, R20, R21, R22, R23, R24, R25 1 kΩ 1/16 W ±1% ThickFilm R0603 CR0603-16 W-1001F Venkel 14 2 R10, R14 1.5 kΩ 1W ±1% ThickFilm R2512 CR2512-1W Venkel -1501F 15 2 R12, R16 390 Ω 1/8 W ±0.1% ±25PPM R0805 TFCR08058WVenkel E-3900B 16 2 R2, R6 6.2 kΩ 1W ±1% ThickFilm R2512 CR2512-1W Venkel -6201F 17 4 R3, R7, R11, R15 2.7 kΩ 1W ±1% ThickFilm R2512 CR2512-1W Venkel -2701F 18 2 R4, R8 2.4 kΩ 1/8 W ±0.1% ±25PPM R0805 TFCR08058WVenkel E-2401B 19 4 R5, R9, R13, R17 750 Ω 1/8 W ±0.1% ±25PPM R0805 TFCR08058WVenkel E-7500B Item Qty Reference Value 2 1 C2 3 4 4 12 Rating Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 12 UG206: Si838xISO-EVB User's Guide • Bill of Materials Item Qty Reference Value Rating Volts Tol. Type 20 4 SO1, SO2, SO3, SO4 Standoff HDW 21 28 TP1, TP2,TP3, TP4, TP5, TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13,TP14, TP15, TP16, TP17, TP18, TP19, TP20, TP21, TP22, TP23, TP24, TP25, TP26, TP27, TP28 White Loop 22 1 U1 Si8384P-IU QSOP PCB Footprint Mfr Part # Mfr 1902D Keystone 151-201-RC Kobiconn SOP20N 6.0P0.63 Si8384P-IU 5 Skyworks TESTPOINT Not Installed Components 13 NI Qty Reference Value NI 12 C5, C7, C9, C11, C12, C13, C14, C15, C16, C17, C18, C19 200 pF Rating Volts Tol. Type PCB Footprint 50 V ±10% C0G C0805 Mfr Part # Mfr C0805C0G500 Venkel -201K Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 13 UG206: Si838xISO-EVB User's Guide • Ordering Guide 8. Ordering Guide Ordering Part Number (OPN) Description Si838x-KIT Si8384P 8 Channel PLC Input Isolator Evaluation Kit 14 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.2 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • December 21, 2021 14 Connecting Everyone and Everything, All the Time Portfolio Quality Support & Resources www.skyworksinc.com www.skyworksinc.com/quality www.skyworksinc.com/support Copyright © 2021 Skyworks Solutions, Inc. All Rights Reserved. Information in this document is provided in connection with Skyworks Solutions, Inc. (“Skyworks”) products or services. These materials, including the information contained herein, are provided by Skyworks as a service to its customers and may be used for informational purposes only by the customer. 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