Texas Instruments TPIC8101, User Manual, Page: 3 / 17

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Setup
Table 3. TPIC8101 EVM Test Points
Jumper Jumper Description
Designator Label
TP1 CH1 Channel 1 knock sensor input
TP2 CH2 Channel 2 knock sensor input
TP3 CH1N Connects to CH1N pin of TPIC8101
TP4 CH2N Connects to CH2N pin of TPIC8101
TP5 VREF Connects to VREF, CH1P, and CH2P pins of TPIC8101
TP6 CH1FB Connects to CH1FB pin of TPIC8101
TP7 CH2FB Connects to CH2FB pin of TPIC8101
TP8 TEST Connects to /TEST pin of TPIC8101
TP9 SCLK SPI clock line
TP10 SDI SPI slave data in line
TP11 SDO SPI slave data out line
TP12 /CS SPI chip select line
TP13 OUT Analog output of the TPIC8101
TP14 XCLK Clock input
TP15 VIN Connects to VDD pin of TPIC8101. Can be used to externally supply 5V if TI communication board is
not used.
GND1 GND1 Ground test point
GND2 GND2 Ground test point
GND3 GND3 Ground test point
2.2 TPIC8101 Quick-Start Guide
Use the following quick-start steps for the EVM:
1. Insert one end of a USB cable into the TIger communication board, the other end to the USB port in a
PC.
2. Connect a 5-V voltage supply
• 5 V is supplied by the TI communication board if the VDD_SEL jumper is connected (default
setting).
• 5 V is also supplied by connecting test point VDD with an external power supply and disconnecting
the
VDD_SEL jumper.
3. Connect the high-frequency oscillation input (for example, 8 MHz)
• The high frequency oscillation signal is supplied by the TI communication board if the CLK_SEL
jumper is connected (default setting).
• The high frequency oscillation signal is also supplied by connecting test point XCLK with an
external function generator, and disconnecting the
CLK_SEL jumper.
4. Supply the integration window signal (for example, 5 ms)
• The integration window signal is supplied by TI communication board if the INT/H jumper is
connected (default setting).
• The integration window signal is also supplied by removing the INT/H jumper and supplying the
signal externally with a function generator to pin 2 of the INT/H terminal.
5. Connect the knock sensor output signal (for example, 10 KHz)
• Knock sensor output signal is connected at test point CH1 or CH2 (for channel 1 and 2
correspondingly), from a knock sensor, or an external function generator.
3 SLIU012 – December 2015 TPIC8101 Evaluation Module
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