MAX2027 19-2601 Rev 1 2/04 IF Digitally Controlled Variable-Gain Amplifier General Description Features The MAX2027 high-performance, digitally controlled 50MHz to 400MHz Frequency Range variable-gain amplifier is designed for use from 50MHz Variable Gain: -8dB to +15dB to 400MHz. Output IP3: 35dBm (at All Gain Settings) The device integrates a digitally controlled attenuator and a high-linearity IF amplifier in one package. Noise Figure: 4.7dB at Maximum Gain Targeted for IF signal chains to adjust gain either dynamically or as a one-time channel gain setting, the Digitally Controlled Gain with 1dB Resolution and MAX2027 is ideal for applications requiring high perfor- 0.05dB State-to-State Accuracy mance. The attenuator provides 23dB of attenuation range with 0.05dB state-to-state accuracy. The MAX2027 is available in a thermally enhanced 20- pin TSSOP-EP package and operates over the -40C to Ordering Information +85C temperature range. PART TEMP RANGE PIN-PACKAGE MAX2027EUP-T -40C to +85C 20 TSSOP-EP* *EP = exposed pad. Pin Configuration/ Applications Functional Diagram Cellular Base Stations Receiver Gain Control V GND CC 1 20 Transmitter Gain Control MAX2027 V 2 19 CC GND Broadband Systems RF IN 3 18 ATTN OUT Automatic Test Equipment GND 4 17 GND Terrestrial Links GND 5 16 GND B4 6 15 AMP IN I B3 7 AMP 14 BIAS BIAS ATTENUATION B2 8 13 I SET LOGIC CONTROL B1 9 12 RF OUT B0 10 11 V CC 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.IF Digitally Controlled Variable-Gain Amplifier ABSOLUTE MAXIMUM RATINGS All Pins Input Voltage (except AMP , I , and I ) Continuous Power Dissipation (T = +70C) IN BIAS SET A to GND................................................................-0.3V to +5.5V 20-Pin TSSOP-EP Input Voltage Levels (B0B4).....................-0.3V to (V + 0.5V) (derate 21.7mW/C above +70C)..................................1.7W CC Input Voltage Levels (AMP and I )................-0.3V to +1.5V Operating Temperature Range ...........................-40C to +85C IN BIAS Input Voltage Levels (I )....................................-0.3V to +1.0V Junction Temperature......................................................+150C SET RF Input Signal .................................................................20dBm Storage Temperature Range .............................-65C to +165C RF Output Signal...............................................................22dBm Lead Temperature (soldering, 10s) .................................+300C 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 (Typical application circuit, V = +4.75V to +5.25V, GND = 0V. No RF signals applied, and RF input and output ports are terminated CC with 50. R = 825, T = -40C to +85C. Typical values are at V = +5V and T = +25C, unless otherwise noted.) (Notes 1, 2) 1 A CC A PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS SUPPLY Supply Voltage V 4.75 5.00 5.25 V CC Supply Current I 60 75 mA CC I Current I 0.9 mA SET SET CONTROL INPUTS/OUTPUTS Control Bits Parallel 5 Bits Input Logic High (Note 3) 2 V Input Logic Low 0.6 V Input Leakage Current -1.2 +1.2 A 2 MAX2027