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MC33690DWE
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P26
MC33690 Standalone T
ag R
eader Circuit, Rev
. 5
Pin Definition and F
unction
Freescale Semiconductor
22
Figure 22. AM Internal Circuit
s
Figure 2
3. K Intern
al Circuits
16V
VDD
40V
VSUP
2k
40V
22V
17
AM
2µA
22V
VSUP
22V
1k
2k
2µA
40V
18
K
VSUP
22V
40V
16V
Applicatio
n Schemes
MC33690 Standalone T
ag R
eader Circuit, Rev
. 5
F
reescale Semi
conductor
23
19
Application Schemes
Figure 24. Standalo
ne Configuration with One-Wire Bus
VBA
T
VSUP
GA
TE
SOURCE
TD1
TD2
RD
XT
AL1
XT
AL2
MODE1
MODE2
DOUT
LV
R
AM
CEXT
AG
N
D
ST
ARC
Tx
Rx
C
EXT
10m
F
10nF
8M
H
z
VDD
VSS
100
n
F
NC
NC
VSUP
NC
510W
VBA
T
K
VSS
C
1
C
3
C
2
R
A
C
A
L
A
R
1
R
2
Note:
If no
e
xter
nal MOS transistor is necessar
y to increase th
e voltage regulator current capabil
ity
, the pins GA
TE and
SOURCE must be left unconnected. In this configur
ation
,
the outputs Rx and DOUT f
orc
e a
low le
vel. C1 is not
required for the ST
ARC functiona
lity and only acts as a reserv
oir of energy
. T
o preser
ve
the demodulator sensitivity
,
CEXT and R2 should be connected to AGND and VSS connected to A
GND using a low resistance path.
NC
NC
1MW
8.2pF
8.2pF
MC33690 Standalone T
ag R
eader Circuit, Rev
. 5
Application Sche
mes
Freescale Semiconductor
24
Figure 25. Standalone Configuration with T
wo-Wires Bus
VBA
T
VSUP
GA
TE
SOURCE
TD1
TD2
RD
XT
AL1
XT
AL2
MODE1
MODE2
DOUT
LV
R
AM
CEXT
AG
N
D
ST
ARC
Tx
Rx
R
A
C
A
L
A
R
1
R
2
C
EXT
10m
F
10nF
VDD
VSS
100
n
F
NC
NC
NC
510W
VDD
K
VSS
C
1
C
3
C
2
VBA
T
NC
NC
Note:
If no
e
xter
nal MOS transistor is necessar
y to
increase t
he voltage regulator current capability
, the pins GA
TE and
SOURCE must be left unconnected. C
1
is not required
f
or the ST
ARC functionality and
only acts as a reser
voir of
energy
. T
o preser
ve the demodulator sensitivity
, C
EXT
and R
2
should be connected to AGND and VSS connected
to A
GND usin
g a low resistance path.
8M
H
z
1MW
8.2pF
8.2pF
P1-P3
P4-P6
P7-P9
P10-P12
P13-P15
P16-P18
P19-P21
P22-P24
P25-P26
MC33690DWE
Mfr. #:
Buy MC33690DWE
Manufacturer:
NXP / Freescale
Description:
Digital Signal Processors & Controllers - DSP, DSC STAND ALONE TAG READER
Lifecycle:
New from this manufacturer.
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