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AD6140ARS датащи(PDF) 1 Page - Analog Devices |
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AD6140ARS датащи(HTML) 1 Page - Analog Devices |
1 / 8 page REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. a AD6140 One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: http://www.analog.com Fax: 781/326-8703 © Analog Devices, Inc., 1998 Bandpass IF Subsystem FUNCTIONAL BLOCK DIAGRAM MIXER POST AMPLIFIER MIXER MODULATOR AGC DETECTOR CIRCUIT ECL-TO-CMOS LEVEL-SHIFTER LNA BIAS AMPLIFIER PREAMPLIFIER IF_INPUT LNA_SENSE LNA_FORCE _DATA_OUT _CLOCK_OUT BUFFER_VDD CLK_IN+ CLK_IN– BUFFER_GND AVDD AGND DGND DVDD POWER_DOWN AGC_CAPACITOR 0.1 F BIAS_RESISTOR 39k RINT BIAS SYSTEM AGC_TC_SELECT VOLTAGE_REFERENCE_IN AD6140 LO_IN+ LO_IN– FEATURES IF Subsystem Bandpass Modulator Variable-Gain Preamplifier with 13 dB of AGC Range Mixer AGC Detector Op Amp for LNA Biasing ECL-to-CMOS Level Translator Ultralow Power Design 2.7 V Operating Voltage 4.8 mA Current Consumption Power-Down Control Small 20-Lead SSOP Package APPLICATIONS FLEX™, ReFLEX™ Receivers Multimode Receivers GENERAL DESCRIPTION The AD6140 is a bandpass Σ∆ ADC IF IC for receivers requiring a high dynamic range and multiple filter bandwidths. With an external decimation filter, it creates a multibit analog-to-digital converter. The AD6140 consists of a variable gain, low noise preamplifier, mixer, AGC detector, bandpass Σ∆ modulator, an ECL-to-CMOS level translator for the system clock, and an auxiliary amplifier for use in biasing a discrete LNA. It is de- signed to operate with Motorola’s ReFLEX chipset solution. Contact Motorola directly for more information about the ReFLEX chipset solution. With data and clock outputs at CMOS logic levels, it interfaces to an external decimation filter. It comes in a 20-lead plastic SSOP and operates over the –40 °C to +85°C industrial temperature range at 2.7 V. FLEX and ReFLEX are trademarks of Motorola, Inc. |
Аналогичный номер детали - AD6140ARS |
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Аналогичное описание - AD6140ARS |
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