Safran EVBA 2.0, Technical Note

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TECHNICAL NOTE
Safran Colibrys SA
30N.EVBA V2.10.16
Av. des Sciences 13 – 1400 Yverdon-les-Bains - Switzerland T +41 58 100 5000
www.safran-colibrys.com page 2 F +41 58 100 5001
1 EVBA_2.0 description:
1.1 General overview
The EVBA_2.0 is a Kit containing 3 components:
- 1 analog evaluation board with soldered VS1000 of corresponding G range. Evaluation board contains
electronic circuits to achieve a preliminary signal conditioning
- 1 * header connector “J1” with 14 pins (to be soldered onto the EVBA dedicated pads)
- 1 * mating connector (14 pins) including 13 cm length signal cable ribbon
The EVBA_2.0 is protected from outside atmospheric condition effects (temperature, humidity) by a vacuum
sealed electrostatic conductive plastic bag
Note: MEMS accelerometer and electronic circuits on the EVBA can be damaged
by electrostatic discharge (ESD). Handle with appropriate precautions and
placement should be done in accordance with strict ESD control
Please check the integrity of the plastic bag and report if any damage or if the bag
is open on arrival.
1.2 Interface Pinout
The Table 1 below describes the pin name and interface for the connecting pads J1:
Pin Nr Pin name Connector Description
1 VTemp_f
J1
Temperature sensor analog output (buffered)
2 V
DD
_s J1 +3.3 V
DC
reference voltage sense output (not buffered)
3 OUTN_f
J1
Negative differential output (buffered)
4 V
MID
(1)
J1 Internal ASIC reference voltage. For decoupling capacitors only
5 OUTP_f
J1
Positive differential output (buffered)
6 V
SS
(0 V) J1 Must be connected to ground plane (GND)
7 Vout_SE
J1
Single output acceleration (Vout_SE = OUTP - OUTN) (buffered)
8 Vp (+5V)
J1
Power supply 5.0VDC – 5.5V
DC
9 V
SS
(0 V) J1 Must be connected to ground plane (GND)
10 V
SS
(0 V) J1 Must be connected to ground plane (GND)
11 ERR
J1
Error signal (output, active high)
12 ST
J1
Self-test activation (input, active high)
13 POR
J1
Power-on Reset signal (output, active high)
14 RESET
J1 System reset signal (input, active low)
Table 1: Interface Pinout
Note 1: this pin should be left unconnected.
Accelerometer VS1000
Decoupling
capacitors
Connecting holes “J1”
Ø3.4mm
fixing hole
Proximity electronics, with
power supply and buffers