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78K0/Lx3 - See it!
3.4 External A/D measurement inputs, connector J1
Connector J1 can be configured to measure external analogue signals by using the internal 10-Bit A/D
converter or respectively the 16-bit ∆∑ A/D converter of the 78K0/LF3 device. To use this mode please
open the corresponding soldering bridges A1 - A8.
J1
1
2
3
4
5
6
7
8
Table 3: External A/D measurement inputs, connector J1
3.5 External A/D measurement input, connector J2
Connector J2 can be used to measure an external analogue signal by using the internal 10-Bit A/D
converter or respectively the 16-bit ∆∑ A/D converter of the 78K0/LF3 device.
J2
1
2
Table 4: External A/D measurement input, connector J2
3.6 IDD measurement, connector J4
Connector J4 (not assembled) can be used to measure the current consumption of the 78K0/LF3 device.
For using this mode please open soldering bridge V8.
3.7 External power supply input, connector J5
By using connector J5 (not assembled) external power supply can be applied to the 78K0/Lx3 - See it!
board without a need of an active USB connection.
J5
1
2
Note: Be sure to unplug the USB connection before applying external power supply to input J5.
3.8 External main oscillator, Y1
The clock generator of the 78K0/LF3 device can be configured to work with an external oscillator
connected to the X1 and X2 pins. To use this mode equip pad Y1 of the 78K0/Lx3 - See it! board with an
corresponding oscillator. The configuration of the clock generator is described within the user's manual of
the 78K0/LF3 device.
Signal
P20/ANI0/DS0-
P21/ANI1/DS0+
P22/ANI2/DS1-
P23/ANI3/DS1+
P24/ANI4/DS2-
P25/ANI5/DS2+
P26/ANI6/REF-
P27/ANI7/REF+
P23/ANI3/DS1+
Table 5: External power supply input, J3
User's Manual U18759EE2V0UM00
J1
Signal
9
GND
10
GND
11
GND
12
GND
13
GND
14
GND
15
GND
16
GND
Signal
GND
Input
VDD (+5V)
GND
17
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