mc33690dw Freescale Semiconductor, Inc, mc33690dw Datasheet - Page 18

• Manufacturer Part Number: mc33690dw
• Description: Standalone Tag Reader Circuit Starc
• Manufacturer: Freescale Semiconductor, Inc

© Motorola, Inc., 2002.
APPLICATION SCHEMES
If no external MOS transistor is necessary to increase the voltage regulator current capability, the pins GATE
and SOURCE must be left unconnected.
In this configuration, the outputs Rx and DOUT force a low level.
C
To preserve the demodulator sensitivity,
AGND using a low resistance path.
1
is not required for the STARC functionality and only acts as a reservoir of energy.
VBAT
VSS
C
L
A
A
10
R
C
C
1
2
µ
1
F
C
EXT
10
R
C
0n
2
3
R
NC
NC
SOURCE
Figure 13 : Standalone configuration with one wire bus
F
NC
A
10nF
Freescale Semiconductor, Inc.
AGND
CEXT
GATE
VSS
VDD
TD2
TD1
For More Information On This Product,
RD
Tx
Rx
MOTOROLA SEMICONDUCTORS PRODUCTS
Go to: www.freescale.com
C
EXT
MC33690
STARC
and
R
2
18
should be connected to AGND, and VSS connected to
VSUP
LVR
XTAL1
XTAL2
MODE1
MODE2
DOUT
AM
K
NC
NC
VSUP
1MΩ
revision 4.8, 5 February 2002
VBAT
8.2pF
8.2pF
510Ω
8MHz