F115H 规格书说明 Simple Datasheet V2.pdf

发布时间：2022-06-02 发布人：admin 分类：说明书资料大小：0.41M 资料格式：pdf 举报版权申诉

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FEARURES DESCRIPTION Internal LDO Regulator  12V High Voltage Supply   300MHz to 450MHz Frequency Range  Data Rates up to 10kbps ASK  Output Power to 17dBm on 50ohm load  Low external part count  SOT23-6 Package Type Applications  Fan Controllers  Remote Power Switches  Multi-Media Remote Control  Remote Sensor Data Links  Infrared Transmitter Replacement The F115H is a high voltage supply, high performance, internal 3V LDO regulator output, single chip ASK transmitter IC for remoter wireless applications in the 300 to 450MHz frequency band. This transmitter IC is a true “data-in, antenna-out” monolithic device, in terms of power, the F115H is capable of delivering 17dBm into a 50ohm load (matched). In the terms of operating voltage, the F115H operates from 5V to 14V. In the terms of internal LDO regulator, the regulator can output 3V voltage supply for encode ICs or MCU, and up to 60mA load current with external 1uF capacitor when 12V input Voltage. The F115H is easy to use, it requires a reference frequency (RF carrier frequency divide by 32 times) generated from a crystal without external capacitor. No external matching network components for PCB antenna application. The F115H operates with ASK/OOK UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers. The F115H’s maximum ASK data rate is 10kbps. The ASK data voltage should be under 3.6V. *This preliminary datasheet is subject to change without notification. - 1 -

TYPICAL APPLICATION 433.92MHz F115H Application Circuit PIN CONFIGURATION F115H SOT23-6 Package PIN DESCRIPTION Pin Name Function 1 2 3 4 5 6 PAOUT Power Output VSS VDD Ground High Voltage Power Supply LDO_OUT Internal LDO Voltage Output Supply for MCU or Coder RO ASK Reference Oscillator Code Data Input, Data “1” Should be Under 3.6V *This preliminary datasheet is subject to change without notification. - 2 - ASKPAOUTVSSVDD1236RO5LDO_OUT4

ABSOLUTE MAXIMUM RATINGS Supply Voltage …………………..16V Input Voltage ……………….....…7V ESD Rating ……………….….Note 1 Storage Temperature Range ……-65° C to 150° C Junction Temperature ………………………150° C Lead Temperature (soldering, 10sec.) …...260° C OPERATING RATINGS Supply Voltage ……….…5V to 14V Input Voltage (Max.) ………..…3.6V Ambient Temperature (TA) ……….-40° C to 85° C ELECTRICAL CHARACTERISTICS Unless otherwise noted, VDD = 12V, TA = 25° C, 1Kbps data rate 50% duty cycle, RL 50ohm load(matched). RF Output Symbol Parameter Conditions Min. Typ. Max. Units Pout Output Power Reference Oscillator fRX = 315MHz fRX = 433.92MHz 18 16 dBm dBm Symbol Parameter Conditions Min. Typ. Max. Units fOSC Frequency Input Range fRX = 315MHz fRX = 433.92MHz IOSCSC Source Current V(RO) = 0V 9.84375 13.56 0.2 5 1.5 MHz MHz VPP μA ASK Modulation Symbol Parameter Occupied Bandwidth Data Rate Power Supply Conditions @ 315MHz @ 433.92MHz Min. Typ. Max. Units <700 <1000 kHz kHz 10 kbps Symbol Parameter Conditions Min. Typ. Max. Units Supply Current fRX = 315MHz, Pout = +14dBm @ VDD = 12V fRX = 433.92MHz, Pout = +14dBm 24 24 mA mA ION Note 1: Device is ESD sensitive. Use appropriate ESD precautions. Exceeding the absolute maximum rating may damage the device. *This preliminary datasheet is subject to change without notification. - 3 -

BLOCK DIAGRAM Figure 1 Simplified Block Diagram FUNCTIONAL DESCRIPTION Figure 1 Simplified Block Diagram that illustrates the basic structure of the F115H. It is composed of five modules; Crystal oscillator, PLL, PA, LDO, Reference, Under Voltage Detect and Logic Control. Crystal Oscillator The reference oscillator is crystal-based Pierce configuration, designed to accept crystals with frequency from 9.375MHz to 14.0625MHz. PLL The PLL is to provide a stable carrier frequency for transmission. It is a “divide by 32” phase locked loop oscillator. Power Amplifier The PA serves two purposes: To buffer the VCO from external elements. To amplify the phase locked signal. The power amplifier can produce +17dBm at 12V on 50ohm. LDO Regulator The LDO outputs 3V voltage for internal modules and external ICs. *This preliminary datasheet is subject to change without notification. - 4 - XTALPFDChargePumpDividerVCOPALDOLogic ControlUnder VoltageDetectROVDDVSSLDO OUTReferenceASKPAOUTInternal supply

Reference The reference provides the internal stable voltage and current Under Voltage Detect The block senses operating voltage. If the operating voltage falls below the setting voltage, this block will send a signal to disable the PA. Logic Control The logic control gates the ASK data. It only allows transmission when lock, amplitude and under voltage detect conditions are valid. PCB LAYOUT Layout Issues For PCB antenna application, PCB layout is a primary concern for achieving optimum performance and consistent manufacturing results, so PCB trace length should be short to minimize parasitic inductance (25.4mm ~ 20nH), wide traces and a ground plane under the signal traces is recommended. Antenna Layout No ground plane should be under the antenna trace, capacitance C2 normally don’t need. Recommended for 433.92MHz application: 1. PCB antenna trace length is 45±5mm. 2. PCB antenna trace width is 1mm. Recommended for 315MHz application: 1. PCB antenna trace length is 54±5mm. 2. PCB antenna trace width is 1mm. *This preliminary datasheet is subject to change without notification. - 5 -

PACKAGE DESCRIPTION SOT23-6 Package Outline Dimensions shown in millimeters *This preliminary datasheet is subject to change without notification. - 6 -

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