MC33690DWE Freescale Semiconductor, MC33690DWE Datasheet - Page 23

• Manufacturer Part Number: MC33690DWE
• Description: IC STAND ALONE TAG READER 20SOIC
• Manufacturer: Freescale Semiconductor

Specifications of MC33690DWE

• Rf Type: Read / Write
• Frequency: 125kHz
• Features: Wide Supply Voltage Range
• Package / Case: 20-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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Freescale Semiconductor
Note: If no external MOS transistor is necessary to increase the voltage regulator current capability, the pins GATE and
VBAT
VSS
C
L
SOURCE must be left unconnected. In this configuration, the outputs Rx and DOUT force a low level. C1 is not
required for the STARC functionality and only acts as a reservoir of energy. To preserve the demodulator sensitivity,
CEXT and R2 should be connected to AGND and VSS connected to AGND using a low resistance path.
A
A
Application Schemes
10mF
R
C
C
1
2
1
C
EXT
100nF
R
C
2
3
R
Figure 24. Standalone Configuration with One-Wire Bus
NC
NC
SOURCE
NC
A
10nF
AGND
CEXT
GATE
VSS
VDD
TD2
TD1
RD
Tx
Rx
MC33690 Standalone Tag Reader Circuit, Rev. 5
STARC
VSUP
LVR
XTAL1
XTAL2
MODE1
MODE2
DOUT
AM
K
NC
NC
1MW
VSUP
8.2pF
8.2pF
VBAT
Application Schemes
510W
8 MHz
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