Uhf ask/fsk transmitter block, Features, Description – Rainbow Electronics T48C862-R4 User Manual
Page 4: Uhf ask/fsk transmitter block features
4
T48C862-R4
4551B–4BMCU–02/03
UHF ASK/FSK Transmitter Block
Features
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Integrated PLL Loop Filter
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ESD Protection (4 kV HBM/200 V MM, Except Pin 2: 4 kV HBM/100 V MM) also at ANT1/ANT2
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Maximum Output Power (10 dBm) with Low Supply Current (9.5 mA Typically)
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Modulation Scheme ASK/FSK
– FSK Modulation is Achieved by Connecting an Additional Capacitor between the XTAL Load Capacitor and the Open-
drain Output of the Modulating Microcontroller
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Easy to Design-in Due to Excellent Isolation of the PLL from the PA and Power Supply
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Supply Voltage 2.0 V to 4.0 V in the Temperature Range of -40
°C to +125°C
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Single-ended Antenna Output with High Efficient Power Amplifier
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External CLK Output for Clocking the Microcontroller
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125
°C Operation for Tire Pressure Systems
Description
The PLL transmitter block has been developed for the demands of RF low-cost transmission systems, at data rates up to
32 kbaud. The transmitting frequency range is 429 MHz to 439 MHz. It can be used in both FSK and ASK systems.