Continental Automotive TIS 04 ASK User Manual

Continental Automotive

User Manual / Functional Description

of the

Continental

Tire Pressure Wheel Unit

Type

TIS-04-ASK 315MHz

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Continental Automotive

1. SYSTEM OVERVIEW

Tire pressure monitoring system (called also TG for Tire Guard) is composed by:

- a tire guard wheel unit including an integrated pressure, temperature and acceleration sensor
and a RF transmitter.

- a RF receiver unit (not described in this document)
TG monitors the pressure of vehicle tire when driving or when it is stopped. An electronic unit

(wheel unit) mounted inside the tire periodically measures the current pressure. Thanks to a RF
link, this pressure information is transmitted to the RF receiver/decoder.

2. TECHNICAL DESCRIPTION

Carrier frequency: 315MHz (± 32 kHz)
Frequency FSK deviation: ± 40 kHz
Number of channels: 1
Type of modulation: Amplitude Shift Keying (ASK)
Baud rate: 9600 bds
Rated Output Power: < 10mW
Antenna: Internal
Voltage supply: 1 Lithium battery 3V (CR2050)
Voltage supply range: 2.1 up to 3.2V

3. TYPICAL USAGE PATTERN

3.1 AVERAGE FACTOR CALCULATION (Standard 47 CFR Part 15C (periodic

intentional transmitter))

RF frames maximum duration = 10.3ms
Averaging factor = 20 x log (10.3/100) = -19.7dB

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