E524.03 Datasheet, PDF (1/2 Pages) ELMOS Semiconductor AG – DIGITAL ULTRASONIC TRANSCEIVER DRIVER AND SIGNAL PROCESSOR

DIGITAL ULTRASONIC TRANSCEIVER DRIVER AND SIGNAL PROCESSOR
PRODUCTION DATA - APR 04, 2012
E524.03
Features
General Description
ÿ Minimum Component Ultrasonic
Park Assist Solution
ÿ Single Transceiver Architecture
ÿ Programmable to transducer frequencies
40kHz to 58kHz
ÿ Supports “Receive Only” Mode
ÿ High Sensitivity and Low Noise Down to 0.5µVRMS
ÿ Driver Power and Signal Gain Programmable
ÿ Digital Filtering and Signal Processing
ÿ 14 Programmable Threshold / Time Settings for
Echo Envelope Evaluation
ÿ One Wire I/O to Program and Receive Echo Signal
ÿ Embedded EEPROM to Store Settings
ÿ Automotive Supply and I/O Protection
ÿ AEC-Q100 Qualification
Applications
ÿ Ultrasonic Park Assist (USPA)
ÿ Industrial Distance Measuring
ÿ Robotics
Typical Applications Circuit
The E524.03 offers ultrasonic range detection with
minimum component count.
In transmit mode, the IC drives a center tapped trans-
former directly. Driver frequency, transmitted burst
power and other parameters are user configurable and
stored in embedded EEPROM via a single wire IO pin
at assembly. The device features settings for short and
long distance measurement.
In receive mode, the echo signal is first amplified with
a programmable gain amplifier and converted by an
internal analog-to-digital converter. The signal is sub-
sequently digitally filtered and compared. Compara-
tor thresholds are adjustable via registers for defined
interval lengths within a measurement period. The re-
sulting signal is available at pin IO for the hosting BCU.
A “Receive Only” mode enables the reception of indi-
rect echos. The E524.03 interfaces with the BCU via one
dedicated line.
Ordering Information
Product ID
Temp. Range
E524.03
-40°C to +85°C
Package
QFN20L4
Ultrasonic Module
RTD
Body Control Unit
VSUP
RPU
GND
DSUP
CSUP
VSUP
DRV1
DRV2
Ultrasonic-Transducer
CTD
AING
CAIN
AINS
VDDD
CVDDD
DATA
CIO
RIO_PU
IO
CIO
E524.03
TDO
TCK
TDI
TMS
VDDA GNDA GNDD GNDP TMEN
CVDDA
ELMOS Semiconductor AG reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.
ELMOS Semiconductor AG
Info Sheet
QM-No.: 25IS0068E.01