TAT9988 CATV GaN Power Doubler MMIC Applications HFC Nodes CATV Line Amplifiers Head End Equipment 40 Pin 5x7 mm QFN Package Product Features Functional Block Diagram Excellent High Output Linearity High Gain 24dB 1000MHz 50MHz 1000MHz Bandwidth Ultra-Low CSO/CTB/XMOD Low Noise Excellent Input/Output Match Variable Bias Control Compact Size High Reliability 24V, 445mA Pin Configuration General Description The TAT9988 is an ultra-linear, packaged GaAs/GaN Pin No. Label amplifier intended for output stage amplification in 3 Non-Inverting Amplifier Input CATV infrastructure applications. 4 Linearizer Current-Adjust 6,7 Common Source Node The TAT9988 features a push-pull cascode design 9 Amplifier Current-Adjust which provides flat gain along with ultra-low 10 Inverting Amplifier Input distortion, making it ideal for use in CATV distribution 20 Feedback to Inverting Input systems requiring high output power capability. 24 Non-Inverting Amplifier Output The TAT9988 draws 445mA from a 24V supply and 26 Output Device Gate Bias 1 exceeds the output linearity performance of 27 Output Device Gate Bias 2 traditional GaAs-based amplifiers. 29 Inverting Amplifier Output Feedback to Non-Inverting 33 The TAT9988 allows users to adjust the bias current It 1,2,5,8,11-12, 21- No connect and the bias voltage externally in order to optimize 23,25, 28, 30-32, output performance. 13-19, 34-40 Ground The TAT9988 is packaged in an industry standard 40 2 pin 5x7 mm QFN package. Ordering Information Part No. Description TAT9988 CATV GaN Power Doubler MMIC TAT8888 50-1000 MHz Hybrid Evaluation Board Standard T/R size =1000 pieces on a 7 reel. Product Datasheet: Rev F 02-11-14 - 1 of 7 - Disclaimer: Subject to change without notice 2014 TriQuint www.triquint.com TAT9988 CATV GaN Power Doubler MMIC Absolute Maximum Ratings Recommended Operating Conditions Parameter Rating Parameter Min Typ Max Units Storage Temperature -40 to +100C Supply Voltage (V ) 24 V DD RF Input Power, CW, 75, T=25 C 70 dBmV Case Temperature -30 +100 C Supply Voltage (V ) +30 V Junction Temperature, Tj 155 C DD Supply Current (I ) 600 mA Electrical specifications are measured at specified test conditions. DD Specifications are not guaranteed over all recommended Operation of this device outside the parameter ranges operating conditions. given above may cause permanent damage. (1) Typical Performance Push-Pull Configuration Test conditions unless otherwise noted: V =+24 V, 75 System, Base Temp=+35C. DD Parameter Conditions Min Typ Max Units Operating Frequency 50 1000 MHz Tested at 1000 MHz Gain 23 23.5 24.25 dB Gain Slope 45 to 1003 MHz 0.25 1.5 dB Gain Flatness Relative to Slope Line 0.5 0.8 dB (2) Input Return Loss 18 dB (2) Output Return Loss 19 dB CSO -69 -65 dBc 79 channels NTSC CTB -75 -69 dBc 75 channels QAM, -6dB offset, XMOD -65 dBc 60 dBmV virtual output, 18dB Tilt CCN 55 59 dBm Pout= 19 dBm/tone, at 500 MHz Output IP3 53 dB f = 6 MHz Noise Figure 3.5 dB Supply Current, I 410 445 470 mA DD Thermal Resistance, Junction to case 5 C/W jc Notes: 1. Includes balun, board, and connector losses. 2. Return losses dependent on balun and transformer selection. Product Datasheet: Rev F 02-11-14 - 2 of 7 - Disclaimer: Subject to change without notice 2014 TriQuint www.triquint.com