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MAX2165 数据表(PDF) 1 Page - Maxim Integrated Products |
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MAX2165 数据表(HTML) 1 Page - Maxim Integrated Products |
1 / 24 page General Description The MAX2165 direct-conversion tuner IC is designed for handheld digital video broadcast (DVB-H) applications. The tuner covers a 470MHz to 780MHz input frequency range and features an I/Q baseband interface. The MAX2165’s direct-conversion architecture elimi- nates the need for an IF-SAW filter, allowing for reduced bill of materials cost. The design integrates a variable-gain, low-noise amplifier (LNA); a notch filter; an RF tracking filter; a quadrature mixer; a power detector; programmable baseband lowpass channel- selection filters; baseband variable-gain amplifiers (VGA); DC offset correction circuitry; and a complete fractional-N frequency synthesizer. The part is program- mable through a 2-wire I2C-compatible serial interface. The MAX2165 integrates a tuneable notch filter. This fil- ter is designed to notch out interfering signals in the 830MHz to 950MHz frequency range to allow for opera- tion in the presence of large cellular signals. Programmable baseband channel-selection filters allow for operation with 7MHz and 8MHz channels. Digital DC offset correction circuitry supports time-sliced operation by minimizing power-up time delay. The fractional-N synthesizer reduces VCO lock time and minimizes close-in phase noise, eliminating the need for power- hungry, phase-noise reduction algorithms. The MAX2165 is available in a tiny, 5mm x 5mm x 0.8mm, 28-pin thin QFN package with an exposed pad- dle. It is specified for operation over the -40°C to +85°C extended temperature range. Applications DVB-H Handheld Receivers DVB-T Portable Devices DMB-T/H Portable Devices ISDB-T Receivers (13 Segment) Features o 93mA (typ) Current Consumption from a Single +2.85V Supply Voltage o 21mW (typ) Average Power Consumption at 8% Duty Cycle o Direct-Conversion Architecture Eliminates IF- SAW Filter o Integrated RF Tuneable Notch Filter for Operation in the Presence of Cellular Blockers o Integrated DC Offset Correction Circuitry o Integrated RF Notch Filter for Operation in the Presence of Up to -7dBm Cellular Blockers o Extended UHF Band Operation o 5mm x 5mm x 0.8mm, 28-Pin Thin QFN Package Single-Conversion DVB-H Tuner ________________________________________________________________ Maxim Integrated Products 1 MAX2165 1 8 9 10 11 12 13 14 28 27 26 25 24 23 22 2 3 4 5 6 7 21 20 19 18 17 16 15 LDO VTUNE BBI+ BBI- VCC_VCO BB_AGC GND_TUNE N.C. RFIN ADDR VCC_RF LEXT SCL SDA EP SERIAL INTERFACE, CONTROL, AND SYNTHESIZER CHARGE PUMP 0 ° 90 ° PWRDET DAC TO CONTROL BLOCK THIN QFN 5mm x 5mm + Pin Configuration/ Functional Diagram Ordering Information 19-0646; Rev 1; 3/09 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. + Denotes a lead(Pb)-free/RoHS-compliant package. * EP = Exposed paddle. EVALUATION KIT AVAILABLE PART TEMP RANGE PIN-PACKAGE MAX2165ETI+ -40°C to +85°C 28 TQFN-EP* |
类似零件编号 - MAX2165 |
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类似说明 - MAX2165 |
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