深圳原装 PT4304 普诚OOK/ASK接收机
DESCRIPTION
The PT4304 is a fully integrated OOK/ASK receiver for the315 / 433.92 MHz frequency bands requiring few externalcomponents. The PT4304 receiver chain consists of alow-noise amplifier (LNA), image-rejection mixer (IRM),built-in channel-select filter (CSF), OOK/ASK demodulator,data filter, and data slicing comparator. The local oscillator(LO) sub-system incorporates a monolithic VCO, ÷ 32feedback divider, loop filter and fast start-up referenceoscillator to form a complete phase-locked loop-basedfrequency synthesizer for single channel applications. ThePT4304 also includes an on-chip voltage regulator.
The PT4304 is available in a 16-pin SSOP package and isspecified over the temperature range from –40 to +85 °C.
FEATURES
● Covers 315 and 433.92MHz frequency bands
● Low power consumption: 4.3mA for 315MHz band and 4.6mA for 433.92MHz band under normal operating conditions
● Requires few external components
● Achieves excellent sensitivity on the order of-114 dBm for 315 MHz band and -112dBm for 433.92MHz band (peak ASK signal level)
● Supply voltage range: 2.4 to 5.5V
● Supports data rates up to 10Kb/s
● Wide input dynamic range with automatic gain control handling
APPLICATIONS
● Automotive remote keyless entry (RKE)
● Remote control
● Garage door and gate openers
● Suitable for applications that meet either the European ETSI-300-220 or the North American FCC (Part 15) regulatory standards
