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Motorola Electronic Components Datasheet

MC33690 Datasheet

Standalone Tag Reader Circuit

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MOTOROLA
www.DataSheet4U.com
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL
Order this document
by MC33690/D
MC33690
Standalone Tag Reader Circuit
STARC
The Standalone Tag Reader Circuit (STARC) is an integrated
circuit dedicated to the automotive immobilizer applications. It
combines on the same chip all the circuitry to interface with a
transponder : antenna drivers and demodulator.
A low dropout voltage regulator and a physical interface fully
compatible with the ISO 9141 norm are also available.
STANDALONE
TAG READER
CIRCUIT
The Standalone Tag Reader Circuit is fabricated with the
SMARTMOSTM3.5 technology. This process is a double layer
metal, 1.4µm, 45V technology, combining CMOS and bipolar
devices.
Contactless 125kHz tag reader module :
- Self synchronous sample & hold demodulator
- Amplitude or phase modulation detection
- High sensitivity
- Fast “read after write“ demodulator settling time
- Low resistance and high current antenna drivers :
2@ 150mA (typ.)
- Bidirectionnal data transmission
- Multi tag, multi scheme operation.
Low dropout voltage regulator :
- Wide input supply voltage range :
from 5.5V up to 40V
- Output current capability up to 150mA DC with an
external power transistor
- 5V output voltage with a ± 5% accuracy
- Low voltage reset function
- Low current consumption in standby mode :
300µA (typ.).
ISO 9141 transmitter and receiver module :
- Input voltage thresholds ratiometric to the supply
voltage
- Current limitation
- Ouput slew rate control
- No external protection device required.
DW SUFFIX
Plastic Package
CASE 751D
SO - 20
Pin Connections
VSUP
SOURCE
GATE
TD1
VSS
VDD
TD2
MODE1
MODE2
RD
1
2
3
4
5
6
7
8
9
10
20 Tx
19 Rx
18 K
17 AM
16 XTAL1
15 XTAL2
14 LVR
13 DOUT
12 CEXT
11 AGND
ORDERING INFORMATION
This document contains information on a new product under development. Motorola
reserves the right to change or discontinue this product without notice.
REV 4.8
Device
Operating
Junction
Temperature
Range
Package
MC33690DW
TJ = -40°C to
125°C
SOIC 20
© Motorola, Inc., 2002.
For More Information On This Product,
Go to: www.freescale.com


Motorola Electronic Components Datasheet

MC33690 Datasheet

Standalone Tag Reader Circuit

No Preview Available !

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
510
K
© Motorola, Inc., 2002.
FMoOr TMOoRrOeLAInSfoEMrmICaOtNioDnUCOTnORTShPisROPDroUdCuTSct,
Go to: www2.freescale.com
revision 4.8, 5 February 2002


Part Number MC33690
Description Standalone Tag Reader Circuit
Maker Motorola
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MC33690 Datasheet PDF






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