The ADF7020-1 is a low power, highly integrated FSK/ GFSK/ ASK/ OOK/ GOOK transceiver designed for operation in thelow UHF and VHF bands. The ADF7020-1 uses an externalVCO inductor that allows users to set the operating frequencyanywhere between 135 MHz and 650 MHz. Using the divide-by-2circuit allows users to operate the device as low as 80 MHz.The typical range of the VCO is about 10% of the operatingfrequency. A complete transceiver can be built using a smallnumber of external discrete components, making the ADF7020-1 very suitable for price-sensitive and area-sensitiveapplications.The transmit section contains a VCO and low noisefractional-N PLL with output resolution of <1 ppm. Thisfrequency agile PLL allows the ADF7020-1 to be used infrequency-hopping spread spectrum (FHSS) systems. The VCOoperates at twice the fundamental frequency to reduce spuriousemissions and frequency pulling problems.The transmitter output power is programmable in 63 steps from?20 dBm to +13 dBm. The transceiver RF frequency, channelspacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of2.3 V to 3.6 V and can be powered down when not in useA low IF architecture is used in the receiver (200 kHz),minimizing power consumption and the external componentcount and avoiding interference problems at low frequencies.The ADF7020-1 supports a wide variety of programmablefeatures, including Rx linearity, sensitivity, and IF bandwidth,allowing the user to trade off receiver sensitivity and selectivityfor current consumption, depending on the application. Thereceiver also features a patent-pending automatic frequencycontrol (AFC) loop, allowing the PLL to compensate forfrequency error in the incoming signal.An on-chip ADC provides readback of an integrated temperaturesensor, an external analog input, the battery voltage, or theRSSI signal, which provides savings on an ADC in someapplications. The temperature sensor is accurate to ?10?C overthe full operating temperature range of ?40?C to +85?C. Thisaccuracy can be improved by doing a 1-point calibration atroom temperature and storing the result in memory.Applications Low cost wireless data transfer Wireless medical applications Remote control/security systems Wireless metering Keyless entry Home automation Process and building control

The ADF7020-1 is a low power, highly integrated FSK/ GFSK/ ASK/ OOK/ GOOK transceiver designed for operation in thelow UHF and VHF bands. The ADF7020-1 uses an externalVCO inductor that allows users to set the operating frequencyanywhere between 135 MHz and 650 MHz. Using the divide-by-2circuit allows users to operate the device as low as 80 MHz.The typical range of the VCO is about 10% of the operatingfrequency. A complete transceiver can be built using a smallnumber of external discrete components, making the ADF7020-1 very suitable for price-sensitive and area-sensitiveapplications.The transmit section contains a VCO and low noisefractional-N PLL with output resolution of <1 ppm. Thisfrequency agile PLL allows the ADF7020-1 to be used infrequency-hopping spread spectrum (FHSS) systems. The VCOoperates at twice the fundamental frequency to reduce spuriousemissions and frequency pulling problems.The transmitter output power is programmable in 63 steps from?20 dBm to +13 dBm. The transceiver RF frequency, channelspacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of2.3 V to 3.6 V and can be powered down when not in useA low IF architecture is used in the receiver (200 kHz),minimizing power consumption and the external componentcount and avoiding interference problems at low frequencies.The ADF7020-1 supports a wide variety of programmablefeatures, including Rx linearity, sensitivity, and IF bandwidth,allowing the user to trade off receiver sensitivity and selectivityfor current consumption, depending on the application. Thereceiver also features a patent-pending automatic frequencycontrol (AFC) loop, allowing the PLL to compensate forfrequency error in the incoming signal.An on-chip ADC provides readback of an integrated temperaturesensor, an external analog input, the battery voltage, or theRSSI signal, which provides savings on an ADC in someapplications. The temperature sensor is accurate to ?10?C overthe full operating temperature range of ?40?C to +85?C. Thisaccuracy can be improved by doing a 1-point calibration atroom temperature and storing the result in memory.Applications Low cost wireless data transfer Wireless medical applications Remote control/security systems Wireless metering Keyless entry Home automation Process and building control

The ADF7020-1 is a low power, highly integrated FSK/ GFSK/ ASK/ OOK/ GOOK transceiver designed for operation in thelow UHF and VHF bands. The ADF7020-1 uses an externalVCO inductor that allows users to set the operating frequencyanywhere between 135 MHz and 650 MHz. Using the divide-by-2circuit allows users to operate the device as low as 80 MHz.The typical range of the VCO is about 10% of the operatingfrequency. A complete transceiver can be built using a smallnumber of external discrete components, making the ADF7020-1 very suitable for price-sensitive and area-sensitiveapplications.The transmit section contains a VCO and low noisefractional-N PLL with output resolution of <1 ppm. Thisfrequency agile PLL allows the ADF7020-1 to be used infrequency-hopping spread spectrum (FHSS) systems. The VCOoperates at twice the fundamental frequency to reduce spuriousemissions and frequency pulling problems.The transmitter output power is programmable in 63 steps from?20 dBm to +13 dBm. The transceiver RF frequency, channelspacing, and modulation are programmable using a simple 3-wire interface. The device operates with a power supply range of2.3 V to 3.6 V and can be powered down when not in useA low IF architecture is used in the receiver (200 kHz),minimizing power consumption and the external componentcount and avoiding interference problems at low frequencies.The ADF7020-1 supports a wide variety of programmablefeatures, including Rx linearity, sensitivity, and IF bandwidth,allowing the user to trade off receiver sensitivity and selectivityfor current consumption, depending on the application. Thereceiver also features a patent-pending automatic frequencycontrol (AFC) loop, allowing the PLL to compensate forfrequency error in the incoming signal.An on-chip ADC provides readback of an integrated temperaturesensor, an external analog input, the battery voltage, or theRSSI signal, which provides savings on an ADC in someapplications. The temperature sensor is accurate to ?10?C overthe full operating temperature range of ?40?C to +85?C. Thisaccuracy can be improved by doing a 1-point calibration atroom temperature and storing the result in memory.Applications Low cost wireless data transfer Wireless medical applications Remote control/security systems Wireless metering Keyless entry Home automation Process and building control

The ADF7021-V is a high performance, low power, narrow-band RF transceiver based on the ADF7021-N. The architecture of the ADF7021-V transceiver is similar to that of the ADF7021-N except that an external VCO is used by the on-chip RF synthesizer for applications that require improved phase noise performance.The ADF7021-V is designed to operate in both the license-free ISM bands and in the licensed bands from 80 MHz to 960 MHz.To minimize RF feedthrough and spurious emissions, the external VCO operates at 2? or 4? the desired RF frequency; the ADF7021-V supports a maximum VCO frequency operation of 1920 MHz. The 4? VCO operation is programmable by enabling an additional on-chip divide-by-2 outside the RF synthesizer loop and offers improved phase noise performance.As with the ADF7021-N receiver, the IF filter bandwidths of 9 kHz, 13.5 kHz, and 18.5 kHz are supported, making the ADF7021-V ideally suited to worldwide narrow-band telemetry applications.The part has both Gaussian and raised cosine transmit data filtering options to improve spectral efficiency for narrow-band applications. It is suitable for circuit applications targeted at the following: European ETSI EN 300 220 North American FCC Part 15, Part 90, and Part 95 Japanese ARIB STD-T67 Korean short-range device regulations Chinese short-range device regulationsA complete transceiver can be built using a small number of discrete external components, making the ADF7021-V very suitable for area-sensitive, high performance driven applications.See data sheet for more information.APPLICATIONS Narrow-band, short range device (SRD) standards ETSI EN 300 220 FCC Part 90 (meets Emission Mask D requirements) FCC Part 95 ARIB STD-T67 Wireless Metering Narrow-band wireless telemetry

The LTC3406B is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. The device is available in an adjustable version and fixed output voltages of 1.5V and 1.8V. Supply current with no load is 300?A and drops to <1?A in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3406B ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. PWM pulse skipping mode operation provides very low output ripple voltage for noise sensitive applications.Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors. The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3406B is available in a low profile (1mm) ThinSOT package. Refer to LTC3406 for applications that require Burst Mode? operation. VOUT FSW Features LTC3406 Adj. 1.5MHz Burst Mode LTC3406-1.2 1.2V 1.5MHz Burst Mode LTC3406-1.5 1.5V 1.5MHz Burst Mode LTC3406-1.8 1.8V 1.5MHz Burst Mode LTC3406B Adj 1.5MHz Burst Mode Disabled LTC3406B-1.2 1.2V 1.5MHz Burst Mode Disabled LTC3406B-2 Adj. 2.25MHz Burst Mode Disabled LTC3406A Adj. 1.5MHz Low Ripple Burst Mode LTC3406AB Adj. 1.5MHz Burst Mode Disabled LTC3406AB-2 Adj. 2.25MHz Burst Mode Disabled Applications Cellular Telephones Personal Information Appliances Wireless and DSL Modems Digital Still Cameras MP3 Players Portable Instruments

Demonstration circuit DC500 is a constant-frequency step-down converter, using the various versions (fixed output/adjustable output/Burst Mode/Burst Mode defeated) of the LTC3406 or LTC3406B monolithic synchronous buck regulators. The DC500 has an input voltage range of 2.7V to 5.5V, and is capable of delivering up to 600 mA of output current at minimum input voltage of 3V. The DC500A-E features the 1.5V fixed output LTC3406B-1.5 (Burst Mode defeated).

DC507A: Demo Board for the LT1937 White LED Step-Up Converter in SC70 and ThinSOT.

DC511A: Demo Board for the LT3439 Slew Rate Controlled Ultralow Noise 1A Isolated DC/DC Transformer Driver.

Demonstration circuit 516A-B is a low output voltage, synchronous boost converter featuring the LTC3424. The LTC3424 is ideal for applications that require an output voltage between 1.5V to 2.6V from a single alkaline or NiCd/NiMH cell. A bias voltage (VDD) of 2.7V to 5.5V is required to power the internal circuitry. The input voltage (VIN) range is 1V to 1.6V, but once up and running, the device can operate with an input voltage as low as 0.5V. The output voltage is set at 1.8V. For a 1V minimum battery voltage, the LTC3424 can provide 600mA.

DC532A: Demo Board for the LTC1980 Combination Battery Charger and DC/DC Converter.