TSOP7000SI1 Vishay, TSOP7000SI1 Datasheet - Page 5

• Manufacturer Part Number: TSOP7000SI1
• Manufacturer: Vishay

Specifications of TSOP7000SI1

• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (min): 2.7V
• Operating Supply Voltage (max): 5.5V
• Mounting: Through Hole
• Pin Count: 3
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

TSOP7000SI1
Vishay Semiconductors
Recommendation for Suitable Data For-
mats
The circuit of the TSOP7000SI1 is designed in that
way that disturbance signals are identified and unwa-
ted output pulses due to noise or disturbances are
avoided. A bandpass filter, an automatic gain control
and an integrator stage is used to suppress such dis-
turbances. The distinguishing marks between data
signal and disturbance are carrier frequency, burst
length and the envelope duty cycle.
The data signal should fullfill the following conditions:
• The carrier frequency should be close to 455 kHz.
• The burstlength should be at least 22 µs (10 cycles
of the carrier signal) and shorter than 500 µs.
• The separation time between two consecutive
bursts should be at least 26 µs.
• If the data bursts are longer than 500 µs then the
envelope duty cycle is limited to 25 %
• The duty cycle of the carrier signal (455 kHz) may be
between 50 % (1.1 µs pulses) and 10 % (0.2 µs
pulses). The lower duty cycle may help to save bat-
tery power.
Document Number 84633
www.vishay.com
Rev. 1.0, 01-Mar-05
5