VTI Instruments EMX-75 Series, Руководство пользователя

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EMX-75XX Index 15
FPGA
GND_S
Input Detect with
Hysteresis
DATAx.y
DIO conn
PXIe conn
R1A
330 Ω
R1B
499 Ω
R1C
100 k Ω
3.7 V
LV Emulation
5 V
TTL Emulation
VCLAMP
Channel
Control
Over-Current
Detect
R
INPUT
201 k
User
Voltage
ESD
Int. Voltage
(3.3, 5, 12,
24V)
R
USER
GND_S GND_S
Voltage Output
Mode Internal Supply Pull-Up ( R
X
) Open Circuit V
0
Normal 24 V 100 kΩ (
R
3
) ~ 15.84 V
Normal 12 V 100 kΩ ( R
3
) ~ 7.92 V
Normal 5 V 100 kΩ ( R
3
) ~ 3.3 V
Normal 3.3 V 100 kΩ ( R
3
) ~ 2.47 V
TTL Emulation 5 V* 499 Ω ( R
2
) ~ 4.64 V
LV Emulation 3.7 V* 330 Ω ( R
1
) ~ 3.34 V
*For TTL and LV modes, there is approximately a 0.35 V drop due to the Schottky diode, resulting in an actual
internal supply voltage of 4.65 V and 3.35V, respectively.
Mode External Supply Load V
O-USER
Normal V
CLAMP
R
USER
( )






+ Ω
INPUT USER
INPUT USER
CLAMP
R R k
R R
V
|| 100
||
F
IGURE
2-2: V
OLTAGE
O
UTPUT
B
LOCK
D
IAGRAM
Connector Pin/Signal Assignment
The connector pins and their signal assignments are shown below Table 2-1. For mating connector
and accessory information, please see the EMX-75XX Accessories .
Pin Signal Pin Signal Pin Signal Pin Signal Pin Signal
A1
GND_S
B1
GND_C
C1
GND_S
D1
EXT_GATE_AC
Q
E1
EXT_GATE_GE
N
A2 GND_S B2 GND_S C2 GND_S D2 EXT_CLK E2 GND_S
A3 DATA1. B3 GND_S C3 DATA1. D3 GND_S E3 DATA1.5