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MAX2065 Dataheets PDF



Part Number MAX2065
Manufacturers Maxim Integrated Products
Logo Maxim Integrated Products
Description Serial/ Parallel-Controlled Analog/Digital VGA
Datasheet MAX2065 DatasheetMAX2065 Datasheet (PDF)

19-3131; Rev 0; 3/08 50MHz to 1000MHz High-Linearity, Serial/ Parallel-Controlled Analog/Digital VGA General Description The MAX2065 high-linearity, analog/digital variablegain amplifier (VGA) is designed to operate in the 50MHz to 1000MHz frequency range with two independent attenuators (see the Typical Application Circuit). The digital attenuator is controlled as a slave peripheral using either the SPI™-compatible interface or a parallel bus with 31dB total adjustment range in 1dB steps. An a.

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19-3131; Rev 0; 3/08 50MHz to 1000MHz High-Linearity, Serial/ Parallel-Controlled Analog/Digital VGA General Description The MAX2065 high-linearity, analog/digital variablegain amplifier (VGA) is designed to operate in the 50MHz to 1000MHz frequency range with two independent attenuators (see the Typical Application Circuit). The digital attenuator is controlled as a slave peripheral using either the SPI™-compatible interface or a parallel bus with 31dB total adjustment range in 1dB steps. An added feature allows “rapid-fire” gain selection between each of four steps, preprogrammed by the www.DataSheet4U.com user through the SPI-compatible interface. The 2-pin control allows the user to quickly access any one of four customized attenuation states without reprogramming the SPI bus. The analog attenuator is controlled using an external voltage or through the SPI-compatible interface using an on-chip 8-bit DAC. Because each of the three stages has its own RF input and RF output, this component can be configured to either optimize NF (amplifier configured first), OIP3 (amplifier last), or a compromise of NF and OIP3. The device’s performance features include 22dB amplifier gain (amplifier only), 6.5dB NF at maximum gain (includes attenuator insertion losses), and a high OIP3 level of +42dBm. Each of these features makes the MAX2065 an ideal VGA for numerous receiver and transmitter applications. In addition, the MAX2065 operates from a single +5V supply with full performance, or a single +3.3V supply with slightly reduced performance, and has an adjustable bias to trade current consumption for linearity performance. This device is available in a compact 40pin thin QFN package (6mm x 6mm) with an exposed pad. Electrical performance is guaranteed over the extended temperature range (TC = -40°C to +85°C). ♦ Pin-Compatible Family Includes: MAX2066 (Digital VGA) MAX2067 (Analog VGA) ♦ +19.4dB (Typ) Maximum Gain ♦ 0.5dB Gain Flatness Over 100MHz Bandwidth ♦ 62dB Gain Range (31dB Analog + 31dB Digital) ♦ Built-in DAC for Analog Attenuation Control ♦ Supports Four “Rapid-Fire” Preprogrammed Attenuator States Quickly Access Any One of Four Customized Attenuation States Without Reprogramming the SPI Bus Ideal for Fast-Attack, High-Level Blocker Protection Prevents ADC Overdrive Condition ♦ Excellent Linearity (Configured with Amplifier Last) +42dBm OIP3 +63dBm OIP2 +19dBm Output 1dB Compression Point -67dBc HD2 -83dBc HD3 ♦ 6.5dB Typical Noise Figure (NF) ♦ Fast, 25ns Digital Switching ♦ Very Low Digital VGA Amplitude Overshoot/ Undershoot ♦ Single +5V Supply (Optional +3.3V Operation) ♦ External Current-Setting Resistors Provide Option for Operating Device in Reduced-Power/ Reduced-Performance Mode Features ♦ 50MHz to 1000MHz RF Frequency Range MAX2065 Applications IF and RF Gain Stages Temperature Compensation Circuits Cellular Band WCDMA and cdma2000® Base Stations GSM 850/GSM 900 EDGE Base Stations WiMAX and LTE Base Stations and Customer Premise Equipment Fixed Broadband Wireless Access Wireless Local Loop Military Systems Video-on-Demand (VOD) and DOCSIS®Compliant EDGE QAM Modulation Cable Modem Termination Systems (CMTS) Ordering Information PART MAX2065ETL+ TEMP RANGE PINPACKAGE PKG CODE T4066-3 T4066-3 -40°C to +85°C 40 Thin QFN-EP* MAX2065ETL+T -40°C to +85°C 40 Thin QFN-EP* +Denotes a lead-free package. *EP = Exposed pad. T = Tape and reel. Pin Configuration appears at end of data sheet. cdma2000 is a registered trademark of Telecommunications Industry Association. DOCSIS and CableLabs are registered trademarks of Cable Television Laboratories, Inc. (CableLabs®). 1 SPI is a trademark of Motorola, Inc. ________________________________________________________________ Maxim Integrated Products 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. 50MHz to 1000MHz High-Linearity, Serial/ Parallel-Controlled Analog/Digital VGA MAX2065 ABSOLUTE MAXIMUM RATINGS VCC_ to GND ........................................................-0.3V to +5.5V VDD_LOGIC, DATA, CS, CLK, SER/PAR, VDAC_EN, VREF_SELECT.....................................-0.3V to (VCC_ + 0.3V) STATE_A, STATE_B, D0–D4 ....................-0.3V to (VCC_ + 0.3V) AMP_IN, AMP_OUT, VREF_IN, ANALOG_VCTRL ................................-0.3V to (VCC_ + 0.3V) ATTEN1_IN, ATTEN1_OUT, ATTEN2_IN, ATTEN2_OUT...................................................-1.2V to + 1.2V RSET to GND........................................................-0.3V to + 1.2V RF Input Power (ATTEN1_IN, ATTEN1_OUT, ATTEN2_IN, ATTEN2_OUT).......................................+20dBm RF Input Power (AMP_IN)...............................................+18dBm Continuous Power Dissipation (Note 1) ...............................6.5W θJA (Notes 2, 3)..............................................................+38°C/W θJC (Note 3) ..................................................................


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