A CMT2189C - CMOSTEK
CMT2189CACMT2189C240 – 960 MHz SoC (G)FSK/OOK TransmitterFeatures High-Performance RISC CPUHigh-Performance OOK Transmitter PIC16-likeInstruction-set All Features Configurable Only 37 instructions to learn: Frequency Range: 240 to 960 MHz FSK, GFSK and OOK Modulation- All Single-Cycle Except Branches Symbol Rate up to 100 kbps Operating speed:- Up to 16 MHz Clock Configurable Single-Ended or Differential PA Output- 125nsinstruction cycle Output Power:-10 to 13 dBm- FSYS 8MHz @ 2.0V 3.6V Supply Voltage: 2.0 to 3.6 V- FSYS 16MHz @ 2.7V 3.6V FCC / ETSI Compliant Interrupt capability RoHS Compliant 8-level deep hardware stack 14-pin SOP Package 2048 Words Flash / 128B SRAM / 256B EEPROMOrdering Information 2 x 8-bit timers/counters with programmable prescalerPart NumberFrequencyPackage OptionMOQ- Interrupt-on-pin changeCMT2189C-ESR868.35 MHzT&R2,500 pcs- Individually programmable weak pull-upsCMT2189C-ESB868.35 MHzTube1,000 pcs 4 I/O pins with individual direction control:- Push-pull output except PA5More Ordering Info: See Page 30Applications Remote Keyless Entry (RKE) Garage and gate door openers Home/Building Automation and Security Industrial Monitoring and Controls Remote Lighting Control Wireless Alarm and Security Systems Consumer Electronics ApplicationsDescriptionsSOP14The CMT2189C devices are fully integrated, highly flexible,high performance, SoC (G)FSK/OOK transmitters withembedded RISC microcontroller core for various 240 to 960AVDD 114 XTALGND 213 GNDtransmitters, receivers and transceivers. The CMT2189CPAP 312 PC4/RFDATuses a 1-pin crystal oscillator circuit with the required crystalPAN 411 DVDDMHz wireless applications. They are part of the CMOSTEKNextGenRFTM family, which includes a complete line ofload capacitance integrated on-chip to minimize the BOMPC2/RFCLK 510 GNDand the PA output can be either single-ended or differential.PA5/MCLRB 69 PA1/ICSPDATThe device operates from 2.0 V to 3.6 V. Its low powerPA2/T0CKI/INT 78 PA0/ICSPCLKcounts. The device can deliver up to 13 dBm output powerdesign enables superior operation life for battery poweredapplication. The CMT2189C transmitter together withCMOSTEK NextGenRFTM receiver enables a highly flexible,CMT2189Clow cost RF link.Copyright By CMOSTEKRev 0.8 Page1/35www.cmostek.com
CMT2189CTypical ApplicationVDDCMT2189C1Loop FDAT122VDD11Notes:1. Connector J1 is ICSPDebugger Interface109SW08SW1Figure 1.CMT2189C Typical Application with Differential PA OutputTable 1.BOM of 868.35 MHz Application with Differential PA OutputDesignatorDescriptionsValueU1CMT2189C, 240 – 960 MHz SoC(G) FSK/OOK transmitterX1 20 ppm, SMD32*25 mm crystalManufacturer--CMOSTEKEPSON26MHzPush buttons--D1MBR0520LT1, SOD123 (Optional)--R1 5%, 040210kΩC0 20%, 0402 X7R, 25 V0.1uFMurata GRM15C1 0.25 pF, 0402 NP0, 50 V2.2pFMurata GRM15C2 0.25 pF, 0402 NP0, 50 V1.5pFMurata GRM15L1 5%, 0603 multi-layer chip inductor100nHMurata 1. Connector J1 is ICSPDebugger Interface109DATA2SW08CLK2SW1Figure 2. CMT2189C Typical Application with Single-ended PA OutputRev 0.8 Page2/35www.cmostek.com
CMT2189CTable 2. BOM of868.35 MHz Application with Single-ended PA OutputDesignatorDescriptionsU1CMT2189C, 240 – 960 MHz SoC (G)FSK/OOK transmitterX1 20 ppm, SMD32*25 mm crystalSW[3:0]Push 1MBR0520LT1, SOD123 (Optional)--R1 5%, 040210kΩC0 20%, 0402 X7R, 25V0.1uFMurata GRM15C1 5%, 0402 NP0, 50V68pFMurata GRM15C2 5%, 0402 NP0, 50V9.1pFMurata GRM15C3 5%, 0402 NP0, 50V8.2pFMurata GRM15L1 5%, 0603 multi-layer chip inductor100nHMurataLQG18L2 5%,0603 multi-layer chip inductor8.2nHMurataLQG18L3 5%,0603 multi-layer chip inductor8.2nHMurataLQG18Rev 0.8 Page3/35IRwww.cmostek.com
CMT2189CAbbreviationsAbbreviations used in this data sheet are described belowANApplication NotesNP0Negative-Positive-ZeroBOMBill of MaterialsOBWOccupied BandwidthBSCBasic Spacing between CentersOOKOn-Off KeyingBWBandwidthPAPower AmplifierDCDirect CurrentPCPersonal ComputerEEPROMElectrically Erasable Programmable Read-OnlyPCBPrinted Circuit BoardMemoryPLLPhase Lock LoopESDElectro-Static DischargePNPhase NoiseESREquivalent Series ResistanceRBWResolution BandwidthETSIEuropean Telecommunications StandardsRCLKReference ClockInstituteRFRadio FrequencyFCCFederal Communications CommissionRFPDKRF Product Development KitFSKFrequency Shift KeyingRoHSRestriction of Hazardous SubstancesGFSKGauss Frequency Shift KeyingRxReceiving, ReceiverGUIGraphical User InterfaceSOTSmall-Outline TransistorICIntegrated CircuitTBDTo Be DeterminedLDOLow Drop-OutTxTransmission, TransmitterMaxMaximumTypTypicalMCUMicrocontroller UnitXO/XOSCCrystal OscillatorMinMinimumXTALCrystalMOQMinimum Order QuantityRev 0.8 Page4/35www.cmostek.com
CMT2189CTable of ContentsTypical Application . 11. Electrical Characteristics . 71.1 Recommended Operating Conditions . 71.2 Absolute Maximum Ratings. 71.3 Transmitter Specifications . 81.4 RF Crystal Oscillator . 91.5 Internal High Frequency Oscillator . 91.6 Internal Low Frequency Oscillator . 91.7 LVD/LVR . 101.8 POR . 101.9 I/O PAD . 101.10 MCU Supply Current . 102. Pin Descriptions . 113. Typical Performance Characteristics . 124. Typical Application Schematics . 134.1 Typical Application with Differential PA Output . 134.2 Typical Application with Single-ended PA Output . 145. Functional Descriptions . 155.1 Overview . 155.2 Modulation, Frequency, Deviation and Symbol Rate . 155.3 Power Amplifier . 165.4 PA Ramping . 165.5 Crystal Oscillator and RCLK. 176. RF Working States and Control Interface . 186.1 Working States . 186.2 Transmission Control Interface . 186.2.1Tx Enabled by DATA Pin Falling Edge . 196.2.26.2.3Tx Enabled by DATA Pin Rising Edge . 19Two-wire Interface(TWI) . 197. RISC Microcontroller Core . 227.1 Memory Organization . 237.1.17.1.2Program Memory Organization . 23Data Memory Organization . 237.1.2.17.1.2.2General Purpose Register File . 23Special Function Register File . 237.2 Port A . 267.2.17.2.2PORTA and the CPIOA Registers . 27Additional Pin Functions . 27Rev 0.8 Page5/35www.cmostek.com
CMT2189C7.2.2.1Pull-up . 277.2.2.2Interrupt-On-Change . 277.3 PORTC . 277.4 Timer0 Module . 287.4.1Timer0 Operation . 287.4.27.4.3Timer0 Interrupt . 28Using Timer0 with an External Clock . 297.4.4Prescaler . 297.5 Timer2 Module . 298. Ordering Information. 309. Package Outline . 3110. Top Marking . 3210.1 CMT2189C Top Marking . 3211. Other Documentations. 3312. Document Change List . 3413. Contact Information . 35Rev 0.8 Page6/35www.cmostek.com
CMT2189C1. Electrical CharacteristicsVDD 3.3 V, TOP 25 , FRF 868.35 MHz, FSK modulation, output power is 10 dBm terminated in a matched 50 Ωimpedance with single-ended PA output, unless otherwise noted.1.1 Recommended Operating ConditionsTable 3. Recommended Operation eration Voltage SupplyVDD2.03.6VOperation TemperatureTOP-4085 Supply Voltage Slew Rate1mV/us1.2 Absolute Maximum RatingsTable 4. Absolute Maximum y VoltageVDD-0.33.6VInterface VoltageVIN-0.3VDD 0.3VJunction TemperatureTJ-40125 Storage TemperatureTSTG-50150 Soldering TemperatureTSDR255 -22kV-100100mALasts at least 30 secondsESD RatingHuman Body Model (HBM)Latch-up Current@ 85 Note:[1]. Stresses above those listed as “absolute maximum ratings” may cause permanent damage to the device. This is a stressrating only and functional operation of the device under these conditions is not implied. Exposure to maximum ratingconditions for extended periods may affect device reliability.Caution! ESD sensitive device. Precaution should be used when handling the device in orderto prevent permanent damage.Rev 0.8 Page7/35www.cmostek.com
CMT2189C1.3 Transmitter SpecificationsTable 5. Transmitter SpecificationsParameterFrequency RangeSymbol[1]ConditionsFRFSynthesizer FrequencyMin240FRESResolutionSymbol RateSRDeviationFDEVBandwidth-Time 5100ksps1200kspsBT0.5-POUT(Max) 13dBmMinimum Output PowerPOUT(Min)-10dBmOutput Power Step SizePSTEP1dBMaximum Output Power[2][3]PA Ramping TimetRAMPIDD-S-433.92Current Consumption,Single-ended0IDD-D-433.92Current Consumption,DifferentialIDD-D-868.35us0 dBm, 50% duty cycle9.1mA 10 dBm, 50% duty cycle20.5mA 13 dBm, 50% duty cycle27.4mA0 dBm, 50% duty cycleIDD-S-868.35102410mA 10 dBm, 50% duty cycle21.3mA 13 dBm, 50% duty cycle28mA0 dBm, 50% duty cycle5.8mA 10 dBm, 50% duty cycle13.1mA 13 dBm, 50% duty cycle15.3mA0 dBm, 50% duty cycle6.5mA 10 dBm, 50% duty cycle14.3mA 13 dBm, 50% duty cycle16.7mASleep CurrentISLEEP2.5uAFrequency Tune TimetTUNE370us-80dBc/Hz600 kHz offset from FRF-98dBc/Hz1.2 MHz offset from FRF-107dBc/Hz100 kHz offset from FRF-80dBc/Hz600 kHz offset from FRF-98dBc/Hz1.2 MHz offset from FRFl-107dBc/Hzharm @ 630 MHz, 13 dBm POUT-60dBm3 harm @ 945 MHz, 13 dBm POUT-65dBm2nd harm @ 867.84 MHz, 13 dBm POUT-52dBm-60dBm60dBPhase Noise @433.92MHzPhase Noise @868.35MHzHarmonics Output for 315[4]MHz100 kHz offset from FRFPN433.92PN868.35H2315H3315Harmonics Output for[4]433.92 MHzH2433.92H3433.92nd2rdrd3 harm @ 1301.76 MHz, 13 dBm POUTOOK Extinction RationNotes:[1]. The frequency range is continuous over the specified range.[2]. Measured with single-ended PA output, and it is not applicable for when the device is configured as differential PA output.[3]. 0 and 2n us, n 0 10, when set to “0”, the PA output power will ramp to its configured value in the shortest possible time.[4]. The harmonics output is measured with the application shown as Figure 11.Rev 0.8 Page8/35www.cmostek.com
CMT2189C1.4 RF Crystal OscillatorTable 6. Crystal Oscillator SpecificationsParameterCrystal FrequencyCrystal 26MHz[2]Load Capacitance[3]Crystal ESR 20CLOAD12Rm[4]XTAL Startup TimetXTALppm20pF60Ω400usNotes:[1]. The CMT2189C can directly work with external 26 MHz reference clock input to XTAL pin (a coupling capacitor isrequired) with amplitude 0.3 to 0.7 Vpp.[2]. This is the total tolerance including (1) initial tolerance, (2) crystal loading, (3) aging, and (4) temperature dependence.The acceptable crystal tolerance depends on RF frequency and channel spacing/bandwidth.[3]. The required crystal load capacitance is integrated on-chip to minimize the number of external components.[4]. This parameter is to a large degree crystal dependent.1.5 Internal High Frequency OscillatorTable 7. IHRC SpecificationsParameterIHRC FrequencySymbolFIHRCConditionsMin3.3V, 27 TypMax15.99Temperature-dependent-20 80 , 3.3VVoltage-dependent2 3.6VUnitMHz4.2%/100 3%/VSetup Time2.210usLeakage Current0.82nAStep 0.625%Triming Range 20%1.6 Internal Low Frequency OscillatorThe ILRCsupport two frequency: 32KHz or 256KHz. It can be selected by LFMOD in OSCCON register, 0 isthe 32KHz, and the 1 is the 256KHz.Table 8. ILRC SpecificationsParameterILRC FrequencySymbolFILRCConditionsMinTypMaxUnit2.5V, 25 , 32K32.3KHz2.5V, 25 , 256K258.5KHzTemperature-dependent-20 80 , 2.5VVoltage-dependent2 3.6VSetup Time2.5V, 25 4.610usLeakage CurrentDisable0.151nA22.3%/100 11.1Rev 0.8 Page9/35%/Vwww.cmostek.com
CMT2189C1.7 LVD/LVRTable 9. LVD/LVR it2.02.2LVD VoltageV2.8LVR delay125157usTypMaxUnit1.8 PORTable 10. POR SpecificationsParameterPOR n3.3V50nA3.3V2.0V1.9 I/O PADTable 11. I/OPAD it0.3VDDInput Low VoltageVILInput High VoltageVIHOutput High CurrentIOH3.3V, 25 10mAOutput Low CurrentIOL3.3V, 25 15mA41.7KΩ3.3VWeak Pull-up1.100.7VDDMCU Supply CurrentTable 12. Supply CurrentParameterSymbolConditionsMinTypMaxUnit3.3V, FSYS 2MHz310uA3.3V, FSYS 32KHz50uASleep Mode with WDT ON3.3V3uASleep Mode with WDT OFF3.3V0.8uASleep Mode with LVD ON3.3V15uAOperation ModeNotes:1. All the IO is input mode, and with pull-down resistance.2.Comparator is disable, CM 2:0 111Rev 0.8 Page10/35www.cmostek.com
CMT2189C2. Pin CKI/INT78PA0/ICSPCLKFigure 3.CMT2189C Pin AssignmentsTable 13.CMT2189C Pin DescriptionsPin NumberNameI/ODescriptions1AVDDIRF power supply input2GNDIGround3PAPOThe differential power amplifier output, when using as singled-ended output, PAN/PAP4PANOshould be connected together before connecting to the matching FCLKPA5MCLRBPA28PA0/ICSPCLKIOPORTC I/OTWI’s Clock for the RFconfiguration, internally pulled up to VDDPORTA input with pull-up and interrupt-on-changeMaster Clear w/internal pull-upPORTA I/O w/programmable pull-up and interrupt-on-changeT0CKITimer0 clock inputINTExternal InterruptPA0PORTA I/O w/programmable pull-up and interrupt-on-changeICSPCLKPA1Serial Programming and debugging Data I/OPORTA I/O w/programmable pull-up and DIDigital power supply input12PC4/RFDATIO13GNDIGround14XTALI26 MHz single-ended crystal oscillator input or external 26 MHz reference clock inputICSPDATPC4RFDATSerial Programming and debugging ClockPORTC I/OTWI’s DATA for RF configuration, internally pulled down to GNDRev 0.8 Page11/35www.cmostek.com
CMT2189C3. Typical Performance CharacteristicsHarmonics of 433.92 MHzPhase Noise202013.2 dBm@ 433.92 MHz13.2 dBm@ 433.92 MHz1000Power (dBm)Power (dBm)-10-10-203rd Harmonic-60Power (dBm)10-63.4 50-60-60-70250432.42 432.72 433.02 433.32 433.62 433.92 434.22 434.52 434.82 435.12 435.421301.81-55.0 dBm@ 867.84 MHz-50-55.0 dBm@ 435.12 MHz1301.78Freq (MHz) (RBW 1 kHz)-403654805957108259401055117012851400Frequency (MHz) (RBW 10 kHz)Frequency (MHz) RBW 10 kHzFigure 4.Phase Noise, FRF 433.92 MHz,Figure 5.Harmonics of 433.92 MHz,POUT 13 dBm, UnmodulatedPOUT 13 dBmOOK Spectrum, SR 9.6 kbpsSpectrum of Various PA Ramping Options1010-10Power (dBm)-10Power (dBm)128 us64 us32 us16 us8 us4 433.77Frequency (MHz)433.97434.17434.37434.57Frequency (MHz)Figure 7. OOK Spectrum,SR 9.6 ksps,Figure 6.Spectrum of PA Ramping,POUT 10 dBm, tRAMP 32 usSR 9.6 ksps, POUT 10 dBmSpectrum of Various PA Ramping OptionsPOUT vs. VDD1014Power (dBm)-1012SR 1.2 ksps10Power (dBm)1024 us512 us256 us128 us64 us32 us0-2080 dBm6 10 dBm 13 .17Frequency upply Voltage VDD (V)Figure 8.Spectrum of PA Ramping,Figure 9.Output Power vs. SupplySR 1.2 ksps, POUT 10 dBmVoltages, FRF 433.92 MHzRev 0.8 Page12/35www.cmostek.com
CMT2189C4. Typical Application Schematics4.1 Typical Application with Differential PA OutputVDDCMT2189C1Loop FDAT122VDD11Notes:1. Connector J1 is ICSPDebugger Interface109SW08SW1Figure 10.CMT2189C Typical Application with Differential PA OutputNotes:1.Connector J1 is a must for the CMT2189C chip programming during development or manufacture.2.The general layout guidelines are listed below. For more design details, please refer to “AN100CMT211x-5x-8x Schematicand PCB Layout Design Guideline”. Use as much continuous ground plane metallization as possible. Use as many grounding vias (especially near to the GND pins) as possible to minimize series parasitic inductancebetween the ground pour and the GND pins.3. Avoid using long and/or thin transmission lines to connect the components. Avoid placing the nearby inductors in the same orientation to reduce the coupling between them. Place C0 as close to the CMT2189C as possible for better filtering.The table below shows the BOM of 868.35Application with Differential PA Output.Table 14.BOM of 868.35 MHz Application with Differential PA OutputDesignatorDescriptionsU1CMT2189C, 240 – 960 MHz SoC (G)FSK/OOK transmitterX1 20 ppm, SMD32*25 mm crystalSW[3:0]Push 1MBR0520LT1, SOD123 (Optional)--R1 5%, 040210kΩC0 20%, 0402 X7R, 25 V0.1uFMurata GRM15C1 0.25 pF, 0402 NP0, 50 V2.2pFMurata GRM15C2 0.25 pF, 0402 NP0, 50 V1.5pFMurata GRM15L1 5%, 0603 multi-layer chip inductor100nHMurata LQG18Rev 0.8 Page13/35IRwww.cmostek.com
CMT2189C4.2 Typical Application with Single-ended PA PDATJ11PA0/ICSPCLK12DATA234VDD11Notes:1. Connector J1 is ICSPDebugger Interface109DATA2SW08CLK2SW1Figure 11. CMT2189C Typical Application with Single-ended PA OutputNotes:1.Connector J1 is a must for the CMT2189C chip programming during development or manufacture.2.The general layout guidelines are listed below. For more design details, please refer to “AN100CMT211x-5x-8x Schematicand PCB Layout Design Guideline”. Use as much continuous ground plane metallization as possible. Use as many grounding vias (especially near to the GND pins) as possible to minimize series parasitic inductancebetween the ground pour and the GND pins.3. Avoid using long and/or thin transmission lines to connect the components. Avoid placing the nearby inductors in the same orientation to reduce the coupling between them. Place C0 as close to the CMT2189C as possible for better filtering.The table below shows the BOM of868.35 Application with single-ended PA output.Table15. BOM of868.35 MHz FCC/ETSI Compliant ApplicationDesignatorDescriptionsU1CMT2189C, 240 – 960 MHz SoC(G)FSK/OOK transmitterX1 20 ppm, SMD32*25 mm h buttons--D1MBR0520LT1, SOD123 (Optional)--R1 5%, 040210kΩC0 20%, 0402 X7R, 25V0.1uFMurata GRM15C1 5%, 0402 NP0, 50V68pFMurata GRM15C2 5%, 0402 NP0, 50V9.1pFMurata GRM15C3 5%, 0402 NP0, 50V8.2pFMurata GRM15L1 5%, 0603 multi-layerchip inductor100nHMurataLQG18L2 5%,0603 multi-layerchip inductor8.2nHMurataLQG18L3 5%,0603 multi-layerchip inductor8.2nHMurataLQG18SW[3:0]Rev 0.8 Page14/35IRwww.cmostek.com
CMT2189C5. Functional ��IRCCK）GNDLDOsXOSCSRAM128 * 8 BitsData EEPROM256 * 8 al -NDIVCPUIOLoop FilterPANProgram Flash2048 * 14 ControlInterface and Digital LogicPC2Figure 12. CMT2189C Functional Block Diagram5.1 OverviewThe CMT2189C devices are fully integrated, highly flexible, high performance, SoC (G)FSK/OOK transmitters with anembedded RISC microcontroller designed for various 240 to 960 MHz wireless applications. They are part of the CMOSTEKNextGenRFTM family, which includes a complete line of transmitters, receivers and transceivers. The chip is optimized for thelow system cost, low power consumption, battery powered application with its highly integrated and low power design.The functional block diagram of the CMT2189C is shown in the figure above. The CMT2189C is based on direct synthesis ofthe RF frequency, and the frequency is generated by a low-noise fractional-N frequency synthesizer. It uses a 1-pin crystaloscillator circuit with the required crystal load capacitance integrated on-chip to minimize the number of external components.Every analog block is calibrated on each Power-on Reset (POR) to the reference voltage generated by Bandgap. Thecalibration can help the chip to finely work under different temperatures and supply voltages. The CMT2189C has a highlyefficient PA built in, the PA can be configured as single-ended or differential outputs, and the output power can be configuredfrom -10 to 13 dBm in 1 dB step size. The RISC microcontroller has2048-word flash program space. Up to 4 I/O aresupported with their functions customized by the user program. RF Frequency, PA output power, other product features andunique transmit IDs can be programmed into the embedded EEPROM. This saves the cost and simplifies the productdevelopment and manufacturing effort. Alternatively, in stock products of 868.35 MHz is available for immediate demands. TheCMT2189C operates from 2.0 to 3.6 V, only consumes 12.4 mA when transmitting 10 dBm power under 3.3 V supply voltage.The device together with CMOSTEK NextGenRFTM receiver enables a highly flexible, low cost RF link.5.2 Modulation, Frequency, Deviation and Symbol RateThe CMT2189C supports OOK modulation with the symbol rate up to 30 ksps, as well as the (G)FSK modulation with thesymbol rate up to 100 ksps. The supported deviation frequency is from 1 kHz to 200 kHz. The CMT2189C continuously coversthe frequency range from 240 to 960 MHz, including the license free ISM frequency band around 315 MHz433.92 MHz, 868.35MHz and915 MHz. The device contains a high spectrum purity low power fractional-N frequency synthesizer with outputfrequency resolution better than 198 Hz when the RF frequency is lower than 480 MHz, and is 397 Hz when the RF frequencyis higher than 480 MHz, see the table below for the modulation, frequency, Deviation and symbol rate specifications.Rev 0.8 Page15/35www.cmostek.com
CMT2189CTable 16. Modulation, Frequency, Deviation and Symbol cy240 to960MHzDeviation1 to 200kHzFrequency Resolution (FRF 480 MHz) 198HzFrequency Resolution (FRF 480 MHz)397Hz(G)FSK Symbol Rate0.5 to100kspsOOK Symbol Rate0.5 to30ksps5.3 Power AmplifierA highly efficient Power Amplifier (PA) is integrated in the CMT2189C to transmit the modulated signal out. Depending on theapplication, the PA can be configured as single-ended or differential output on the RFPDK, and the user can design a matchingnetwork for the PA to exhibit optimum efficiency at the desired output power for a wide range of antennas, such as loop ormonopole antenna. Typical application schematics and the required BOM are shown in “Chapter 4 Typical ApplicationSchematic”. For the schematic, layout guideline and the other detailed information please refer to “AN100CMT211x-5x-8xSchematic and PCB Layout Design Guideline”.The output power of the PA can be configured by the user within the range from -10 dBm to 13 dBm in 1 dB step size usingthe CMOSTEK USB Programmer and the RFPDK(just as CMT2119A), and also can be configured by software using the TWI.5.4 PA RampingWhen the PA is switched o
C1 5%, 0402 NP0, 50V 68 pF Murata GRM15 C2 5%, 0402 NP0, 50V 9.1 pF Murata GRM15 C3 5%, 0402 NP0, 50V 8.2 pF Murata GRM15 L1 5%, 0603 multi-layer chip inductor 100 nH MurataLQG18 L2
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