T5743N

Features:

5 V to 20 V automotive compatible data interface
Data clock available for Manchester- and Bi-phasecoded signals
IC condition, indicator, sleep or active mode
Minimal external circuitry requirements, no RF components on the PC board except matching to the receiver antenna
High sensitivity, especially at low data rates
Sensitivity reduction possible even while receiving
Fully integrated VCO
Low power consumption due to configurable self polling with a programmable timeframe check
SO20 package
Supply voltage 4.5 V to 5.5 V, operating temperature range 40°C to 105°C
Single-ended RF input for easy adaptation to /4 antenna or printed antenna on PCB
Low-cost solution due to high integration level
ESD protection according to MILSTD. 883 (4KV HBM)
High image frequency suppression due to 1 MHz IF in conjunction with a SAW front-end filter. Up to 40 dB is thereby achievable with state-of-the-art SAWs.
Communication to C possible via a single, bi-directional data line
Power management (polling) is also possible by means of a separate pin via the C
Programmable digital noise suppresion
Receiving bandwidth B_IF = 600 kHz


Pinout




Specifications

Parameters	Symbol	Min.	Typ.	Max.	Unit
Supply voltage	VS			6	V
Power dissipation	Ptot			450	mW
Junction temperature	Tj			150	°C
Storage temperature	Tstg	55		+125	°C
Ambient temperature	Tamb	40		+105	°C
Maximum input level, input matched to 50	Pin_max			10	dBm

Description

The T5743N is a multi-chip PLL receiver device supplied in an SO20 package. It has been especially developed for the demands of RF low-cost data transmission systems with data rates from 1 kBaud to 10 kBaud in Manchester or Bi-phase code. The receiver is well suited to operate with the TEMIC Semiconductors' PLL RF transmitter U2741B. Its main applications are in the areas of telemetering, security technology and keyless-entry systems. T5743N can be used in the frequency receiving range of f₀ = 300 MHz to 450 MHz for ASK or FSK data transmission. All the statements made below refer to 433.92-MHz and 315-MHz applications.