ON Semiconductor AR0140AT, User Manual

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AR0140AT3C00XUEAH3 − GEVB
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Table 1. JUMPERS AND HEADERS
(continued)
Jumper/Header No. Description Pins Jumper/Header Name
P19 Master Clock 1 − 2 (Default) On-Board Oscillator (27 MHz)
2 − 3 AR0140AT Evaluation Board MCLK
P24 I
2
C 1 − 2 & 3 − 4 (Default) Demo 3 SCL & SDA Connected to Sensor SCL & SDA
Respectively
P27 EEPROM Addr. Sel 3 − 4 Open &
1 − 2 Closed (Default)
EEPROM Address Set to 0xA8
3 − 4 Open &
1 − 2 Closed
EEPROM Address Set to 0xAC
3 − 4 Open &
1 − 2 Closed
EEPROM Address Set to 0xA4
3 − 4 Open &
1 − 2 Closed
EEPROM Address Set to 0xA0
P28 TRIGGER 1 − 2 Trigger Input Enabled
Open (Default) Connect Generator Between Pin 1 and GND
SW1 RESET N/A When Pushed, 240 ms Reset Signal will be Sent to
AR0140AT
Interfacing to ON Semiconductor Demo 3 Baseboard
The ON Semiconductor Demo 3 baseboard has a similar
52-pin connector which mates with J1 of the headboard.
The four mounting holes secure the baseboard and the
headboard with spacers and screws.
Shorted Jumpers for Power Measurement
Different supplies to the evaluation board are provided by
trace shorted jumper, for any voltage and power
measurements. To conduct current for current measurement
on a given power rail, cut the trace between the two pins of
their respective JP, and insert an ammeter prior to powering
up the system. The figure below shows where the trace to cut
is located.
Table 2. SHORTED JUMPERS FOR POWER
MEASUREMENT
Jumper Voltage (V)
JP1 (from Demo3) 5.0
JP2 (Peripheral 3.3 V) 3.3
JP3 (VDDIO_LS) 1.8
JP4 (VDDIO) 1.8
JP7 (VDD) 1.8
JP8 (VDD_SLVS) 1.8
JP9 (VDD_PLL) 2.8
JP10 (VAA) 2.8
JP11 (VAA_PIX) 2.8
JP18 (VDD_SLVS) 0.4
Figure 7. Top and Bottom View of Shorted Jumper.
The Bottom View Shows the Trace Location to Cut for Current Measurement
Cut Here