NSE-5310 Datasheet, PDF (10/21 Pages) ams AG – Miniature Position Encoder SOIC with Zero Reference and I²C Output

NSE-5310
Data Sheet - Detailed Description
7.1 Using 3.3V or 5V Operation
For 3.3V operation: Bypass the voltage regulator (LDO) by connecting VDD3V3 with VDD5V.
For 5V operation: Connect the 5V supply to pin VDD5V. VDD3V3 (LDO output) must be buffered by a 2.2µF to 10µF capacitor placed close to
the supply pin.
In either case, a buffer capacitor of 100nF close to pin VDD5V is recommended.
Note: Pin VDD3V3 must always be buffered by a capacitor. It must not be left floating, as this may cause an instable internal 3.3V supply volt-
age which may lead to larger than normal jitter of the measured position.
The 3V3 output is intended for internal use only. It must not be loaded with an external load.
The output voltage of the digital interface I/Os corresponds to the voltage at pin VDD5V, as the I/O buffers are supplied from this pin.
Figure 6. Connections for 3.3V or 5V Supply Voltage
3.3V Operation
VDD5V
+
3.0 - 3.6V
VSS
VDD3V3
LDO
Internal
VDD
I
N
T
E
R
F
A
C
E
100n
DO
PWM
CLK
CSn
Prog
5V Operation
100n
VDD5V
VDD3V3
LDO
1... 10µF
Internal
VDD
+
4.5 - 5.5V
VSS
DO
I
N
PWM
T
E
CLK
R
F
CSn
A
C
E
Prog
www.austriamicrosystems.com
Revision 1.0
10 - 21