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Table 1. EVM Configuration Options for ISO1176T (continued)
Jumper Function Configuration I/O Load
JMP22 – RE Test Point R11 – Uninstalled
JMP23 – DE Test Point
JMP24 – D Test Point
JMP30 – D2 Connects D2 output to transformer Jumper short installed
pin 1
JMP31 – D1 Connects D1 output to transformer Jumper short installed
pin 4
BUS SIDE JUMPERS
JMP5 – GND2 Jumper installed from pin 2 to pin 3 Ground U1-14
JMP7 – Bus Pin B R8,R10 – Uninstalled
JMP8 – GND2 Jumper installed from pin 2 to pin 3 Ground U1-11
JMP9 – Bus Pin A Bus termination A to B Install R9 – 54 Ω
JMP25 Not used on half-duplex device
JMP26 – A Test Point
JMP27 – B Test Point
JMP28 Not used on half-duplex device
JMP29 – ISODE Test Point ISO1176T only
JMP32 – Regulator Output Jumper installed from pin 1 to pin 2 Connects regulator output to
Vcc2. Remove this jumper
when connecting power
externally (regulator not in use)
NOTE: For half-duplex operation R9 for half-duplex ISO1176T device;
R9 (54 Ω) only; R7, R8, AND R10 R7, R8, and R10 for full-duplex
are uninstalled. device.
Table 2. EVM Configuration Options for ISO35T and ISO3086T
Jumper Function Configuration I/O Load
DATA/CONTROL
SIDE JUMPERS
JMP1 – Receiver Output R1 (see JMP16)
JMP2 – Receiver Enable R2 – 50 Ω
(1)
JMP3 – Driver Enable R3 – 50 Ω
(1)
JMP4 – Driver Input R4 – 50 Ω
(1)
R7 – Uninstalled
JMP6 – D1/D2 Test Point
JMP16 – Rout Load Jumper short allows Rout to be pulled
up to Vcc or to GND through a 1-kΩ
resistor.
JMP22 – RE Test Point
JMP23 – DE Test Point
JMP24 – D Test Point
JMP30– D2 Connects D2 output to transformer pin 1 Jumper Short Installed
JMP31 – D1 Connects D1 output to transformer pin 4 Jumper Short Installed
BUS SIDE JUMPERS
JMP5 – A Input R7 and R8 for bus termination R7 – 50 Ω
JMP7 – B Input mmm Across A and B inputs R8 – 50 Ω
(1)
These resistors are provided as impedance-matching terminations to be used when driving these signals with 50-Ω source
impedance test/measurement equipment. When not driving these signals with a 50-Ω source, the components must be removed.
9
SLLU122A–April 2010–Revised July 2010 ISO1176T/35T/3086T Evaluation Module
Copyright © 2010, Texas Instruments Incorporated