epc110
To have still digital compatible signals a level conversion is necessary. Below you find some examples for such circuits for converting OUTH
levels to full CMOS compatible digital output.
+3.3V
R4
10k
VDD
epc110
VDD33
VDD18
PD
GND
LED
OUTN
OUTH
R1
3k6
R2
12k
OUTH
T1
BC846 B
R3
4k7
GND
Figure 9: Non-inverting, low power level shifter (additional current approx. 0.6mA)
+3.3V
+3.3V
VDD
epc110
VDD33
VDD18
PD
GND
LED
OUTN
OUTH
R1
1k5
R3
33k
OUTH
T1
BC846 B
VDD33
VDD18
PD
R4
22k
VDD
R5
33k
OUTH
epc110
LED
OUTN
OUTH
GND
R1
3k6
R2
12k
T1
BC846 B
T2
BC846 B
R2
10k
R3
4k7
<Title>
File:
This document is confidential and
GND
protected by law and international trades. It must not be shown to any third party nor be copied in any form without our written permission
.
<name>
<xx>
GND
Figure 10: Simple inverting level shifter
(additional current approx. 1.6mA or 2.6mA)
Figure 11: Inverting, low power level shifter
(additional current approx. 0.8 ... 1.0mA)
<Title>
File:
This document is confidential and protected by law and international trades. It must not be shown to any third party nor be copied in any form without our written permission
.
<name>
<xx>
<name>
<xx>
24.01.2011
Page 1
cted by law and international trades. It must not be shown to any third party nor be copied in any form without our written permission
.
© 2011 ESPROS Photonics Corporation
Characteristics subject to change without notice
10
Datasheet epc110 - V2.1
www.espros.ch
EPC [ ESPROS PHOTONICS CORP ]
