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MC33690 Datasheet, PDF (2/24 Pages) Motorola, Inc – Standalone Tag Reader Circuit
Freescale SMeCm33i6c9o0nductor, Inc.
BLOCK DIAGRAM
Figure 1 : Standalone Tag Reader Circuit
VBAT
Optional : external N channel MOS required for sourced current > 50mA.
A recommended reference is MMFT 3055VL from Motorola.
C1
GATE
VSUP
VDD
10µF
SOURCE
VDD
VSS
RA
LA
R1
CA
CEXT
10nF
TD1
RD
R2
TD2
CEXT
AGND
Tx
Rx
Voltage Regulator
Tag Reader
ISO 9141 Interface
LVR
8MHz
XTAL1
XTAL2
MODE1
MODE2
DOUT
AM
VBAT
510Ω
K
© Motorola, Inc., 2002.
FMoOr TMOoRrOeLAInSfoEMrmICaOtNioDnUCOTnORTShPisROPDroUdCuTSct,
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revision 4.8, 5 February 2002