AMG-SO204 Datasheet, PDF (26/30 Pages) alpha microelectronics gmbh – Optical Switch IC

AMG-SO204
Optical Switch IC
ROW[0]
ROW[1]
ROW[2]
ROW[3]
ROW[4]
ROW[5]
ROW[6]
ROW[7]
SEG[7:0]
5,72 ms
6,56 ms
T=52,5 ms (19 Hz)
1,7 ms
11,48 ms
6,56 ms
Figure 16: timings of 7-Segment LED control
13. Supply Block
The supply block consists of 2 bandgap cells, 4 low-drop voltage regulators and 1 bias current
generator. It provides the voltages as shown in the table below.
Name
Bandgap
CB3V3
VDDA
VDDD
VREF
Table 2: provided voltages
Value
1,24 V
3,3 V
2,5 V
2,5 V
1,8 V
The bandgap cells are responsible for delivering temperature- and process-independent
reference voltages used for biasing other blocks of the AMG-SO204. These voltages are only
AMG-SO204 Revision: A
29. Jul. 2010 © All rights reserved Page 26 of 30