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HT6P247A

Holtek Semiconductor
Part Number HT6P247A
Manufacturer Holtek Semiconductor
Description (HT6P237A / HT6P247A) Learning RF Encoder
Published Aug 7, 2013
Detailed Description HT6P237A/HT6P247A Learning RF Encoder Features • Operating voltage: 2.0V ~3.6V • Average Operating Current: ♦♦ ♦♦ Gen...
Datasheet PDF File HT6P247A PDF File

HT6P247A
HT6P247A

Overview
HT6P237A/HT6P247A Learning RF Encoder Features • Operating voltage: 2.
0V ~3.
6V • Average Operating Current: ♦♦ ♦♦ General Description The HT6P2x7A devices form a series of data encoders which include fully integrated ASK transmitters for remote control system applications.
These highly integrated devices are true “switch-in, antenna-out” monolithic devices.
They encode 22 or 28 bits of information and then serially transmits the data out on their PAOUT pin upon receipt of transmission enable (Data pins: D0~D3 or B0~B1) signals.
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 delivery and operating temperature.
In terms of power, the devices are capable of delivering +16 dBm into a 50Ω 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 -40˚C to 85˚C with very little frequency drift.
They additionally offer exceptional ease of use and can easily pass FCC/ETSI regulations.
One only needs a few additional components for harmonic filtering.
The devices are used with ASK/ OOK (Amplitude Shift Keying/On-Off Keyed) UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance superheterodyne receivers to form a complete remote system.
20mA @ VDD=3.
0V, 12dBm; 30mA @ VDD=3.
0V, 16dBm • Standby current: 1.
0μA (Max.
) @ VDD=3V • HT6P237A codes are fully compatible with HT6P20B • Up to 4 data pins • Providing 2 compound data trigger pins • Up to 224 address codes • 8 bit time option 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 • 16-Pin NSOP package Applications • Burglar alarm systems • Smoke a...


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