F113

Contents 1. General Description .................................................................................................................... 1 2. Features........................................................................................................................................ 1 3. Applications ................................................................................................................................. 2 4. Typical Application ..................................................................................................................... 2 5. Pin Configuration........................................................................................................................ 2 6. Pin Description ............................................................................................................................ 2 7. Absolute Maximum Ratings (1) ................................................................................................... 3 8. Operating Ratings (2) ................................................................................................................... 3 9. Electrical Characteristics (4) ....................................................................................................... 3 10. Test Circuit ................................................................................................................................ 5 11. F113/F115/F117 PCB Layout Recommendations ................................................................... 5 12. Functional Diagram .................................................................................................................. 6 13. Functional Description ............................................................................................................. 7 13.1. Crystal Oscillator ............................................................................................................. 7 13.1.1. Crystal Oscillator Parameters for ASK Operation................................................. 7 13.2. PLL ×32 ........................................................................................................................... 8 13.3. Power Amplifier ............................................................................................................... 8 13.4. Enable Control ................................................................................................................. 8 13.5. Under Voltage Detect ....................................................................................................... 8 14. Application Information ........................................................................................................... 8 14.1. Power Amplitude Control Using External Resistor ......................................................... 9 14.2. Output Power ON-OFF Control ....................................................................................... 9 14.3. RF Output Response as a Function of VDD and ASK ................................................... 10 14.4. Output Matching Network ............................................................................................. 10 14.5. Layout Issues.................................................................................................................. 10 14.6. Antenna Layout .............................................................................................................. 10 15. PCB Board ............................................................................................................................... 11 16. Package Information .............................................................................................................. 12 附录：注意事项 ............................................................................................................................ 13 F113/F115/F117 1. General Description The F113/F115/F117 is a high performance, easy to use, single chip ASK Transmitter IC for remote wireless applications in the 300 to 450MHz frequency band. This transmitter IC is a true “data-in, antenna-out” monolithic device. F113/F115/F117 has three strong attributes: power delivery, operating voltage and operating temperature. In terms of power, the F113/F115/F117 is capable of delivering +13dBm into a 50Ω load. This power level enables a small form factor transmitter (lossy antenna) such as a key fob transmitter to operate near the maximum limit of transmission regulations. In terms of operating voltage, the F113/F115/F117 operates from 2.0V to 3.6V. The F113/F115/F117 will work with most batteries to the end of their useful limits. In terms of operating temperature, the F113/F115/F117 operates from -40°C to +85°C. The F113/F115/F117 is easy to use. It requires a reference frequency (RF carrier frequency divided by 32 times) generated from a crystal with a few additional external parts to create a complete versatile transmitter. The F113/F115/F117 operates with ASK/OOK (Amplitude Shift Keying/On-Off Keyed) UHF receiver types from wide-band super-regenerative radios to narrow-band, high performance super-heterodyne receivers. The F113/F115/F117’s maximum ASK data rate is 10kbps (Manchester Encoding). The F113/F115/F117 transmitter solution is ideal for industrial and consumer applications where simplicity and form factor are important. For enhanced power saving, the F113/F115/F117 includes power managing function. The power managing function Enables transmitter activated as long as high transient data input trigger signals are received. The transmitter will also be automatically switched off if there are no data input transients for a time exceeding approximately 40ms@433.92MHz. 2. Features         Complete UHF transmitter Frequency range 300MHz to 450MHz Data rates up to 10kbps ASK Output Power to +13dBm Low external part count Low voltage operation Operate with crystals or ceramic resonators Power down modes and wake-up functions to reduce power consumption *This specification is subject to change without notification. 1 of 13 F113/F115/F117 3. Applications      Fan Controllers Remote Power Switches Multi-Media Remote Control Remote Sensor Data Links Infrared Transmitter Replacement 4. Typical Application Figure 1. F113/F115/F117 ASK Key Fob Design for 315 MHz and 433.92 MHz (Note: Values indicated in parentheses are for 315MHz) 5. Pin Configuration 6 ASK PAOUT 1 VSS 2 5 XTLIN VDD 3 4 XTLOUT SOT-23-6 6. Pin Description Pin Number SOT23-6 Pin Name Pin Function 1 PAOUT 2 VSS Ground 3 VDD Voltage Drain Drain (Input): Positive Power Supply Power Amplifier Output. *This specification is subject to change without notification. 2 of 13 F113/F115/F117 4 XTLOUT 5 XTLIN 6 ASK Crystal Out (Output): Reference oscillator output connection Crystal In (Input): Reference oscillator input connection ASK Data Input 7. Absolute Maximum Ratings (1) +5V Supply Voltage (VDD) VSS–0.3 to VDD+0.3 Input/Output Voltage (VI/O) +7.2V Voltage on PA_OUT(VPA_OUT) Storage Temperature Range (TS) –65°C to +150°C Lead Temperature (soldering, 10 sec.) +300°C ESD Rating 2KV (3) 8. Operating Ratings (2) RF Frequency Range 300MHz to 450MHz Supply Voltage (VDD) +2.0V to +3.6V Ambient Temperature (TA) –40°C to +85°C 9. Electrical Characteristics (4) Specifications apply for VDD = 3.0V, TA = 25°C, FreqREFOSC = 13.560MHz. Bold values indicate –40°C to 85°C unless otherwise noted. 1kbps data rate 50% duty cycle. RL 50ohm load (matched) Parameter Condition Min Typ Max Units Power Supply F113/F115/F117 Mark Supply Current ION @ 315MHz, POUT = +13dBm 20 mA @ 433.92MHz, POUT = +13dBm 20 mA Standby Mode @ 315MHz 1 uA @ 433.92 MHz 1 uA Standby supply current, ISTB ASK transition from HIGH to LOW 45 ms ASK transition from LOW to HIGH 250 us +13 dBm +13 dBm Standby delay time RF Output Section and Modulation Limits: F113/F115/F117 @315MHz (4) Output power level, POUT ASK "mark" @433.92MHz (4) *This specification is subject to change without notification. 3 of 13 F113/F115/F117 @ 630MHz F113/F115/F117 Harmonics output for 315MHz F113/F115/F117 @945MHz (4) (4) 2nd harm. -25 dBc 3rd harm. -45 dBc -27 dBc -51 dBc 70 dBc (4) @ 867.84MHz 2nd harm. Harmonics output for 433.92 @1301.76MHz MHz (4) 3rd harm. Extinction ratio for ASK ASK Modulation Data Rate 10 @315MHz (6) kbps