Future Technology Devices International Ltd FT4232H Quad High ...
Future Technology Devices International Ltd FT4232H Quad High ...
Future Technology Devices International Ltd FT4232H Quad High ...
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
9<br />
4<br />
VPLL<br />
VPHY<br />
42 VCCIO<br />
31 VCCIO<br />
20 VCCIO<br />
VCCIO<br />
56<br />
Document No.: FT_000060<br />
<strong>FT4232H</strong> QUAD HIGH SPEED USB TO MULTIPURPOSE UART/MPSSE IC<br />
Datasheet Version 2.09<br />
Clearance No.: FTDI#78<br />
Self Powered application example 2: Self powered configuration (with additional 1.8V LDO voltage<br />
regulator for VCORE)<br />
+3.3V<br />
+3.3V<br />
+1.8V +1.8V +1.8V +3.3V +3.3V +3.3V +3.3V<br />
1<br />
6<br />
3<br />
2<br />
5<br />
CS VCC 8<br />
ORG<br />
D Q 4<br />
93C46<br />
SCL<br />
DU 7<br />
GND<br />
LDO +1.8V<br />
10K 10K 10K<br />
+3.3V<br />
2.2K<br />
+1.8V<br />
EECLK<br />
EEDATA<br />
1 3<br />
27pF<br />
12MHz<br />
27pF<br />
2<br />
3<br />
13<br />
OSCI<br />
OSCO<br />
TEST<br />
AGND 10<br />
64 VCORE<br />
37 VCORE<br />
12 VCORE<br />
100nF 100nF 100nF<br />
GND 51<br />
GND 47<br />
GND 35<br />
GND 25<br />
GND 15<br />
GND 11<br />
GND GND 5<br />
1<br />
PWREN#<br />
SUSPEND#<br />
100nF 100nF 100nF 100nF<br />
Vin Vout<br />
4.7uF 4.7uF 100nF 100nF GND GND GND GND GND GND GND<br />
GND<br />
100nF<br />
100nF GND GND GND GND<br />
+1.8V +3.3V<br />
GND<br />
GND<br />
Ext. Power Supply<br />
GND<br />
LDO +3.3V +3.3V<br />
50<br />
1<br />
VREGIN<br />
16<br />
Vin Vout<br />
ADBUS0<br />
17<br />
2<br />
ADBUS1<br />
GND<br />
49<br />
VREGOUT<br />
ADBUS2<br />
18<br />
GND<br />
ADBUS3 19<br />
ADBUS4<br />
21<br />
22<br />
100nF<br />
100nF<br />
ADBUS5<br />
GND<br />
ADBUS6<br />
23<br />
GND<br />
GND<br />
ADBUS7 24<br />
VBUS<br />
1 VBUS<br />
BDBUS0<br />
26<br />
2<br />
7<br />
27<br />
D-<br />
DM<br />
BDBUS1<br />
3<br />
8<br />
28<br />
D+<br />
GND 4 DP<br />
BDBUS2<br />
BDBUS3 29<br />
6<br />
30<br />
REF<br />
BDBUS4<br />
4.7K<br />
BDBUS5 32<br />
14 RESET#<br />
BDBUS6 33<br />
0<br />
1K<br />
BDBUS7 34<br />
GND<br />
10K 12K<br />
38<br />
39<br />
40<br />
+3.3V<br />
GND<br />
41<br />
GND<br />
63<br />
62<br />
61<br />
EECS<br />
EECLK<br />
EEDATA<br />
CDBUS0<br />
CDBUS1<br />
CDBUS2<br />
CDBUS3<br />
CDBUS4<br />
CDBUS5<br />
CDBUS6<br />
CDBUS7<br />
DDBUS0<br />
DDBUS1<br />
DDBUS2<br />
DDBUS3<br />
DDBUS4<br />
DDBUS5<br />
DDBUS6<br />
DDBUS7<br />
43<br />
44<br />
45<br />
46<br />
48<br />
52<br />
53<br />
54<br />
55<br />
57<br />
58<br />
59<br />
60<br />
36<br />
GND<br />
GND<br />
GND<br />
GND<br />
Figure 6.4 Self Powered Configuration Example 2<br />
Figure 6.4 illustrates the <strong>FT4232H</strong> in a typical USB self powered configuration similar to Figure 6.3. The<br />
difference here is that the +1.8V for the <strong>FT4232H</strong> core has been regulated from the external power<br />
supply.<br />
Note that in this set-up, the EEPROM should be configured for self-powered operation.<br />
Copyright © 2010 <strong>Future</strong> <strong>Technology</strong> <strong>Devices</strong> <strong>International</strong> Limited 32
Change language