as5045 austriamicrosystems, as5045 Datasheet - Page 9

• Manufacturer Part Number: as5045
• Description: 12-bit Programmable Magnetic Rotary Encoder
• Manufacturer: austriamicrosystems

AS5045 12-BIT PROGRAMMABLE MAGNETIC ROTARY ENCODER
Revision 1.2, 03-Oct-06
C L K
CLK
P rog
C S n
P R O G
Prog
CSn
PROG
10n
t
P rog enab le
Cap only required for
OTP programming
1
2
3
4
5
6
7
8
NC
NC
Mode
VSS
Prog_DI
MagINCn
MagDECn
NC
t
D atain
AS5045
IC1
C C W
t
Write Data
1
D atain va lid
VDD3V3
VDD5V
Figure 11: OTP programming connection of AS5045 (shown with AS5045 demoboard)
PWM
CSn
CLK
DO
NC
NC
Z 1 1
t
Load PROG
16
15
14
13
12
11
10
9
Data
Figure 9: Programming access – write data (section of Figure 10)
se e te xt
Z 10
t
1µF
clk
+
Z 9
Figure 10: Complete programming sequence
max. length = 2 inches (5cm)
as short as possible!
keep these 6 wires
For programming,
Z8
www.austriamicrosystems.com
1
Z 7
22k
*see Text
Z e ro P ositio n
Z6
Programming Mode
7
6
5
4
3
2
1
Z 5
8
t
PrgR
PROG
CSN
DO
CLK
VDD3V3
5VUSB
VSS
t
t
Z 4
PROG
PrgH
AS5045 Demoboard
Z 3
Z 2
GND
µC
Z1
3V3
16
Z 0
P W M
dis
P W M a nd status
3
2
1
connect to USB
interface on PC
Power Off
b it m o de s
7.5 … 8.0V
only required for
OTP programming
VPROG
C om p
t
M ag
VSS
PROG finished
E N
+
10µF
P W M
GND
half
E N
1 6
7.5V
VDD
V
0V
Page 9 of 23
ProgOff