THORLABS PICO D, User Manual

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21
Voltage Comments
GND (+15V)
Return for +15V
connected to the circuit board ground.
-15 V -15 volts supply
GND (-15V)
Return for -15V
connected to the circuit board ground.
Table 2-3 DC-power supply - requirements
Nominal
voltage input
Voltage
Maximum
voltage
ripple
Maximum
current
during operation
Comment
+5V 4.9 V to 5.2 V 25 mVpp 2 A
Current surge at
power-on
C = 100 nF
+15V 14.6 V to 15.4 V
150 mVpp
(up to 2 MHz)
0.3 A
Current surge at
power-on
C = 470
µ
F, R
min
= 0.3
Ω
-15V -15.4 to -14.6 V
150 mVpp
(up to 2 MHz)
0.3 A
Current surge at
power-on
C = 470
µ
F, R
min
= 0.3
Ω
Overall power
consumption
-
 
< 20 W

The electrical power is connected to the top (6 pin) connector located at the rear
side of PICO D, see Figure 2–8.
2.5.3 Digital control and status signals
2.5.3.1 Definition of the logical states
The digital control signals are defined with 0V (LOW) as ON/TRUE/active/able and
with 5 V (HIGH) as OFF/FALSE/inactive/disable.
IMPORTANT !
If the input signal is not connected its default logical state is 5V = disable.
2.5.3.2 Digital control signals
The digital logic control signals are used to enable (or disable) certain PICO D fea-
tures. The control signals could be either TRUE or FALSE. Carefully read paragraph
2.5.3.1 (Definition of the logical states) before connecting PICO D. The digital input
circuitry is shown in Figure 2–10.