MC33690 Datasheet, PDF (1/24 Pages) Motorola, Inc – Standalone Tag Reader Circuit

MOTOROLA
Freescale Semiconductor, Inc.
SEMICONDUCTOR TECHNICAL
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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
SMARTMOS^TM3.5 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 :
2Ω @ 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 ¹
SOURCE 2
GATE 3
TD1 4
VSS 5
VDD 6
TD2 7
MODE1 8
MODE2 9
RD 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
T_J = -40°C to
125°C
SOIC 20
© Motorola, Inc., 2002.
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