MAX2056 19-3508 Rev 0 2/05 800MHz to 1000MHz Variable-Gain Amplifier with Analog Gain Control General Description Features The MAX2056 general-purpose, high-performance vari- 800MHz to 1000MHz RF Frequency Range* able-gain amplifier (VGA) is designed to operate in the 39dBm Constant OIP3 (Over All Gain Settings) 800MHz to 1000MHz frequency range*. This device fea- tures 15.5dB of gain, 4.5dB of noise figure, and an out- 23.5dBm Output 1dB Compression Point put 1dB compression point of 23.5dBm. The MAX2056 15.5dB Typical Gain at Maximum Gain Setting also provides an exceptionally high OIP3 level of 39dBm, which is maintained over the entire attenuation 0.15dB Gain Flatness Over 100MHz Bandwidth range. In addition, the on-chip analog attenuators yield 4.5dB Noise Figure at Maximum Gain Setting infinite control and high attenuation accuracy over (Using 1 Attenuator) selectable 22dB or 44dB control ranges. Each of these features makes the MAX2056 an ideal VGA for cellular Two Gain-Control Ranges: 22dB and 44dB band GSM, cdma2000 , W-CDMA, and iDEN transmit- Analog Gain Control ter and power amplifier AGC circuits. The MAX2056 is pin compatible with the MAX2057 Single +5V Supply Voltage 1700MHz to 2500MHz VGA, making this family of Pin Compatible with MAX2057, 1700MHz to amplifiers ideal for applications where a common PC 2500MHz RF VGA board layout is used for both frequency bands. External Current-Setting Resistors Provide Option The MAX2056 operates from a single +5V supply and is available in a compact 36-pin thin QFN package (6mm for Operating VGA in Reduced-Power/Reduced- x 6mm x 0.8mm) with an exposed pad. Electrical per- Performance Mode formance is guaranteed over the extended -40C to Lead-Free Package Available +85C temperature range. *Note: Operation beyond this range is possible, but has not been characterized. Applications Ordering Information GSM 850/GSM 900 2G and 2.5G EDGE Base- Station Transmitters and Power Amplifiers TEMP PKG Cellular cdmaOne, cdma2000, and Integrated PART PIN-PACKAGE RANGE CODE Digital Enhanced Network (iDEN) Base-Station Transmitters and Power Amplifiers 36 Thin QFN-EP ** MAX2056ETX - 40C to +85 C T3666-2 6mm x 6mm W-CDMA 850MHz and Other 3G Base-Station Transmitters and Power Amplifiers 36 Thin QFN-EP ** MAX2056ETX-T - 40C to +85 C T3666-2 6mm x 6mm Transmitter Gain Control Receiver Gain Control 36 Thin QFN-EP ** MAX2056ETX+D - 40C to +85 C T3666-2 6mm x 6mm Broadband Systems 36 Thin QFN-EP ** Automatic Test Equipment M AX2056E TX + TD - 40C to +85 C T3666-2 6mm x 6mm Digital and Spread-Spectrum Communication Systems **EP = Exposed paddle. + = Lead (Pb) free. Microwave Terrestrial Links D = Dry pack. T = Tape-and-reel package. cdmaOne is a trademark of CDMA Development Group. Pin Configuration/Functional Diagram appears at end of data cdma2000 is a registered trademark of Telecommunications sheet. Industry Association. iDEN is a registered trademark of Motorola, Inc. Maxim Integrated Products 1 For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct at 1-888-629-4642, or visit Maxims website at www.maxim-ic.com. EVALUATION KIT AVAILABLE800MHz to 1000MHz Variable-Gain Amplifier with Analog Gain Control ABSOLUTE MAXIMUM RATINGS V to GND...........................................................-0.3V to +5.5V (1m/s airflow) .............................................................31C/W CC JA V to GND (with V applied)................................0 to 4.75V (2.5m/s airflow) ..........................................................29C/W CNTL CC JA Current into V Pin (V grounded) .............................40mA (junction to exposed paddle) ....................................10C/W CNTL CC JC All Other Pins to GND.................................-0.3V to (V + 0.3V) Operating Temperature Range ...........................-40C to +85C CC RF Input Power (IN, IN A, ATTN OUT, OUT A) ............+20dBm Storage Temperature Range .............................-65C to +150C RF Input Power (AMP IN)...............................................+12dBm Junction Temperature......................................................+150C (natural convection)...................................................35C/W Lead Temperature (soldering, 10s) .................................+300C JA Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. DC ELECTRICAL CHARACTERISTICS (V = +4.75V to +5.25V, no RF signals applied, all input and output ports terminated with 50 , T = -40C to +85C, unless other- CC A wise noted. Typical values are at V = +5.0V, T = +25C, unless otherwise noted.) CC A PARAMETER CONDITIONS MIN TYP MAX UNITS Supply Voltage 4.75 5 5.25 V Supply Current R1 = 1.2k , R2 = 3.92k (Note 1) 136 167 mA R Current R1 = 1.2k (Note 1) 1 mA SET1 R Current R2 = 3.92k (Note 1) 0.33 mA SET2 Gain-Control Voltage Range (Note 2) 1.0 4.5 V Gain-Control Pin Input Resistance V = 1V to 4.5V 250 500 k CNTL AC ELECTRICAL CHARACTERISTICS (Typical Operating Circuit with one attenuator connected, V = +4.75V to +5.25V, T = -40C to +85C, unless otherwise noted. CC A Typical values are at V = +5.0V, R1 = 1.2k , R2 = 3.92k , P = +5dBm, f = 900MHz, V = 1V, 50 system impedance, CC OUT IN CNTL second attenuator is not connected, T = +25C, unless otherwise noted.) (Note 3) A PARAMETER CONDITIONS MIN TYP MAX UNITS Frequency Range 800 1000 MHz Gain T = +25C 15.5 dB A V = 1V +0.82 CNTL V = 1.8V +0.26 CNTL T = +25C to -40C A V = 2.6V +0.25 CNTL V = 3.5V -0.18 CNTL Maximum Gain Variation dB V = 1V -0.51 CNTL V = 1.8V -0.11 CNTL T = +25C to +85C A V = 2.6V -0.16 CNTL V = 3.5V +0.09 CNTL Reverse Isolation 29 dB Noise Figure (Note 4) 4.5 dB Output 1dB Compression Point +23.5 dBm From maximum gain to 15dB attenuation, Output 2nd-Order Intercept Point +54 dBm measured at f + f (Note 5) 1 2 Output 3rd-Order Intercept Point From maximum gain to 15dB attenuation (Note 5) +39 dBm 2 MAX2056