Device Information ................................................................................................................................................................................ 1
Features ............................................................................................................................................................................................. 1
Absolute Maximum Ratings ............................................................................................................................................................... 4
Package Information .......................................................................................................................................................................... 5
Theory of Operation ................................................................................................................................................................. 10
Interfacing to the CH101 Ultrasonic Sensor ............................................................................................................................. 11
Device Modes of Operation: .................................................................................................................................................... 12
Use of Level Shifters ................................................................................................................................................................. 14
Ordering Information ................................................................................................................................................................... 16
Part Number Designation......................................................................................................................................................... 16
Revision History ........................................................................................................................................................................... 19
Document Number: DS-000331
Revision: 1.4
Page 2 of 20
CH101
SIMPLIFIED BLOCK DIAGRAM
Figure 1. Simplified Block Diagram
Document Number: DS-000331
Revision: 1.4
Page 3 of 20
CH101
ABSOLUTE MAXIMUM RATINGS
PARAMETER
AVDD to VSS
VDD to VSS
SDA, SCL, PROG, RST_N to VSS
Electrostatic Discharge (ESD)
Human Body Model (HBM)
(1)
Charge Device Model (CDM)
(2)
Latchup
Temperature, Operating
Relative Humidity, Storage
Continuous Input Current (Any Pin)
Soldering Temperature (reflow)
MIN.
-0.3
-0.3
-0.3
-2
-500
-100
-40
-20
Table 1. Absolute Maximum Ratings
Notes:
1.
2.
HBM Tests conducted in compliance with ANSI/ESDA/JEDEC JS-001-2014 Or JESD22-A114E
CDM Tests conducted in compliance with JESD22-C101
TYP.
MAX.
2.2
2.2
2.2
2
500
100
85
90
20
260
UNIT
V
V
V
kV
V
mA
°C
%RH
mA
°C
Document Number: DS-000331
Revision: 1.4
Page 4 of 20
CH101
PACKAGE INFORMATION
8-PIN LGA
DESCRIPTION
CH101 Mechanical Integration Guide
CH101 and CH201 Ultrasonic Transceiver Handling and
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