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HT6P437A

Holtek Semiconductor
Part Number HT6P437A
Manufacturer Holtek Semiconductor
Description Learning RF Encoder
Published Oct 10, 2021
Detailed Description HT6P427A/HT6P437A Learning RF Encoder with Crystal SOC Features • Operating voltage: 2.0V ~3.6V • Average Operation Cur...
Datasheet PDF File HT6P437A PDF File

HT6P437A
HT6P437A

Overview
HT6P427A/HT6P437A Learning RF Encoder with Crystal SOC Features • Operating voltage: 2.
0V ~3.
6V • Average Operation Current ♦♦ 13mA @ VDD=3.
0V, 12dBm, 315MHz ♦♦ 22mA @ VDD=3.
0V, 16dBm, 315MHz • Standby current: 1.
0μA (Max.
) @ VDD=3V • Up to 4 data pins • Provides 2 compound Data trigger pins • Up to 224 address codes • 8 bit time via 2 pin selection • Integrated complete UHF transmitter • Frequency range: 300MHz to 450MHz • Supports ASK/OOK modulation • 3 output power levels: 12dBm/14dBm/16dBm via 1 pin selection • Minimal external components • High noise immunity • 16-Pin NSOP package Applications • Burglar alarm systems • Smoke and fire alarm systems • Personal alarm systems • Car/Garage door controllers • Home/office/car security systems • Other remote control systems General Description The HT6P4x7A devices form a series of data encoders which include fully integrated ASK transmitters for remote control system applications.
These highly integrated chips are true “switch-in, antenna-out” monolithic devices.
They encode 24 or 28 bits of information and then serially transmit the data out on their PAOUT pin upon receipt of a transmission enable (Data pins: D0~D3 or B0~B1) signal.
They encode address and data information into a coded waveform suitable for modulation and transmission using their integrated RF circuits.
The devices offer high performance in two areas: power level and operating temperature.
In terms of power level, the devices are capable of delivering +16dBm into a 50W load.
This power level enables a small form factor transmitter such as a key fob transmitter to operate with a maximum distance.
In terms of temperature, they can operate from -40ºC to 85ºC with very little frequency drift.
They additionally offer exceptional ease of use.
One only needs a reference frequency generated from an external crystal to create a complete versatile transmitter.
The devices are used with ASK/OOK (Amplitude Shift Keying/On-Off Keyed) UHF receiver types from wid...


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