Texas Instruments ISO7220 Series, Руководство пользователя

Страница: 3 / 9

1.3 The EVM Signal Paths of the ISO7220x and ISO7221x Isolators
1
2
3
4
5
6
7
8
ISO7220x
V
CC1
(Banana Jack P1) V
CC2
(Banana Jack P2)
C2 C3 C4 C5 C6 C11 C10 C9 C8 C7
INA
OUTB
SMA
J3
SMA
J4
GND1 (Banana Jack P3)
GND2 (Banana Jack P4)
0 W
50 W
INPUT
OUTPUT
SMA
J1
INPUT
SMA
J2
OUTPUT
INB
OUTA
data
data data
data
0
W
50 W
0
W
0 W
www.ti.com
Introduction
This multifunctional EVM is designed with signal paths shown in Figure 1 , Figure 2 , and Figure 3 for the
evaluation of the ISO7220x and ISO7221x dual-channel isolators.
Figure 2. The ISO7220x Same-Channel Direction Schematic
Table 1. ISO7220x EVM Connections
Connection Label Description
J1 SMA connector to the INB input, pin 3
J2 SMA connector to the OUTB output, pin 6
J3 SMA connector to the INA input, pin 2
J4 SMA connector to the OUTA output, pin 7
P1 V
CC1
Input power supply banana jack
P2 V
CC2
Output power supply banana jack
P3 GND1 Input power ground connection banana jack
P4 GND2 Output power ground connection banana jack
JMP1 3-pin jumper V
CC1
, input, GND1
JMP2 3-pin jumper (unused)
JMP3 3-pin jumper – V
CC1
, input, GND1
JMP4 3-pin jumper (unused)
SLLU098A – June 2007 – Revised July 2009 Dual-Channel Digital Isolator EVM 3
Submit Documentation Feedback