ALM-81224

ALM-81224 High Linearity 1450 – 2750 MHz Variable Gain Amplifier Data Sheet Description Avago Technologies’ ALM-81224 is a high linearity variable-gain amplifier module for use in the 1450-2750MHz band. Gain control is achieved using a single DC voltage input pin. High linearity is achieved through the use of Avago Technologies’ proprietary GaAs Enhancementmode pHEMT process1. It is housed in a miniature 6.0 x 6.0 x 1.0 mm 24-pin Molded Chip On Board (MCOB) package. Gain changes monotonically with gain control pin voltage. Input is fully matched. Output match can be tuned for optimal performance at a particular frequency band within the VGA operation frequency range using common RF board layout. The compact footprint coupled with high linearity and efficiency makes ALM-81224 an ideal choice for Basestation transmitters and receivers and Temperature Compensation Circuitry applications. Component Image (6.0 x 6.0 x 1.0) mm 24-lead MCOB AVAGO 81224 WWYY XXXX Note: Package marking provides orientation and identification “81224 “ = Device Code “WWYY” = Date Code identifies month and year of manufacturing “XXXX” = Last 4 digit of assembly lot number Pin Configuration Vdd1 GND GND GND GND Vdd2 24 23 22 21 20 19 GND 1 18 GND RFIN 2 Q1/Q2 3 Interstage 4 ½ ¾ ¿ GROUND 17 ½ ¾ RFOUT 16 ¿ 15 GND GND 5 14 GND GND 6 13 GND 7 8 9 10 11 12 Vc_att GND Vc1 Vc2 GND Vddbias Features x High Linearity at low bias current x High max gain: 23.8 dB typ x High linearity performance: +1...