Texas Instruments ISO1541D, Руководство пользователя, Страница: 3 / 17

ISO1540
1
2
3
4
5
6
7
8
GND2
SCL1
VCC2 VCC1
SCL2
Side 1
SDA1
SDA2
Iso
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n
ISO1541
1
2
3
4 5
6
7
8
GND2
SCL1
VCC2 VCC1
SCL2
GND1
SDA1
SDA2
Iso
la
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Side 2
Side 1 Side 2
GND1
Figure 1-1. ISO1540 and ISO1541 Pinout
The EVM is shown in Figure 1-2 , it comes with an ISO1540 and an ISO1541 installed in place of U1 and U2
respectively. However, this EVM can be configured for use with two ISO1540s or two ISO1541s.
Figure 1-2. ISO154xEVM Top Photograph
An input or output pin can be tied either to supply voltage (VCCx) or Ground (GNDx) using the 4-pin jumpers on
the EVM (J3A to J10A on side 1 and J3B to J10B on side 2). These jumpers also provide scope-probe access to
each pin.
Each signal line (SDAx, SCLx) is configured with a 1-kΩ pull-up resistor (R1 to R8) to the corresponding power
supply (VCCx). Reconfigure the value of this pull-up resistor as per the application requirement.
1.4 EVM Schematic
A schematic diagram for this EVM is presented in Figure 1-3 .
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SLLU166A – JUNE 2012 – REVISED SEPTEMBER 2022
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