75 Ohm RF Amplifier 50-1000 MHz TAT 7468B Preliminary Data Sheet Overview The TAT7468B is a 75 Ohm RF Amplifier designed for use to 1 GHz. The TAT7468B contains two separate amplifiers for push pull applications. It is fabricated using 6-inch GaAs pHEMT technology to optimize performance and cost. Each amplifier contains on-chip active biasing. The bias current set point of each amplifier is adjustable with a single resistor from the input to ground. Features * 75 Ohm, 50-1000 MHz Bandwidth * Low Noise Figure: 3.7 dB to 1000 MHz * Adjustable Low Power Consumption * SOIC-8 or QFN package Applications * Replacement for 5v SOIC-8 amplifiers * Edge QAM input gain stage * VONU Transimpedance Amplifiers * Distribution amplifiers SOIC8 Pin Configuration 1 8 2 7 3 6 4 5 Pin No. Pin Name Description 1 2,3 4 5 6 7 8 Exposed Slug RF IN A GND RF IN B RF OUT B BIAS ADJ B BIAS ADJ A RF OUT A GND RF Input Ground RF Input RF Output Bias Adjustment Bias Adjustment RF Output Ground Target Specifications: TAT7468B RF Amplifier Table 1. RF Characteristics Characteristic Notes Bandwidth RF Gain Gain Flatness Noise Figure Input Return Loss To 1000 MHz Output Return Loss To 1000 MHz Output IP3 (2 dBm/tone) 6 MHz spacing Output IP2 (2 dBm/tone, <600MHz) 6 MHz spacing Idd 5V Min 50 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Typ 16 0.75 3.7 -18 -15 35 68 150 Max 1002 Unit MHz dB +/- dB dB dB dB dBm dBm mA Proprietary and Confidential Specifications subject to change, R90313 Page 1 Ordering Information Part Number Description Package Description Component Packaging TAT7468B-SC8 TAT7468B-Q-EB Evaluation Board RoHS Compliant SOIC-8 RoHS Compliant QFN 4x4mm Evaluation Board SOIC-8 Evaluation Board QFN Engineering Samples Engineering Samples TAT7468B-SC8-EB RFIC, 50 -1000MHz , push pull amplifier RFIC, 50-1000MHz, push pull amplifier sample Evaluation Board TAT7468B-Q Absolute Maximum Ratings Parameter Absolute Maximum RF Input Power Voltage Operating Temperature Storage Temperature TBD 10.0 volts -40oC to +85oC -60oC to +150oC ESD Classification and Moisture Sensitivity Level* Parameter ESD Classification - Human Body Model - Machine Model Moisture Sensitivity Level RoHS Targets Class 1B, 500V Class IV, 2000V Level 3 RoHS compliant per EU directive *Expected Behavior 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Proprietary and Confidential Specifications subject to change, R90313 Page 2 Performance Data (5V 150mA, push-pull amplifier, QFN 4x4mm) TAT7468 QFN APPLICATION SCHEMATIC (50 - 1000 MHz) L3 +5v, 150mA C9 C10 C3 C7 RF J2 INPUT C5 BIAS ADJUST R1 20 L4 C1 T1 1 2 1 2 Reference Designator L1,2 L3 L4,5 L6,7 T1,2 C1,2,9,10,11 C5,6,7,8 C12,13 R1,2 R3,4 R5 R6 J1,2 U1 VDD L7 18 17 16 L1 R3 BIAS ADJ A 1 2 4 3 4 IN A TAT 7468QE 14 13 4x4mm QFN 1 2 PADDLE 2 3 4 C12 11 OU T B L6 1 12 BACKSIDE IN B 5 T2 C13 15 OU T A 3 C2 19 BIAS ADJ B 6 7 L5 8 9 10 1 BIAS ADJUST R2 C6 R4 MFG PN 0402AF-561XJLW 1008AF-901XKLC 0402CS-4N7XJLW 0402CS-5N6XJLW TC1-33-75G2+ 0402YC103KAT 04025A005BAT9A 04025C221KAT2A CRCW0402750RFKED CRCW04020R0FKED CRCW0402750RFKED CRCW04020R0FKED 531-40039 TAT 7468B VDD BIAS ADJUST R6 RF OUTPUT MFG CoilCraft CoilCraft CoilCraft CoilCraft MiniCircuits AVX AVX AVX Dale Dale Dale Dale Amphenol TriAccess C4 C8 1 BIAS CONTROL R5 J2 L2 Value 560 nH 910 nH 4.7nH 5.6 nH 1:1 Balun .01 uF 0.5 pF 220 pF 750 ohm 0 ohm 750 ohm 0 ohm F-Edge Mount note : set BIAS ADJUST to 0v for low bias (typ 130mA) R6=0 ohm C11 TAT7468 Output IP2 and IP3 versus Freq TAT 7468B Return Loss 6 MHz separation, +2 dBm/tone 0 45 75 IP2 ---> -5 42 -10 70 IP3L OIP3 (dBm) S11 -20 -25 IP2L 39 36 60 <-- IP3 S22 -30 65 IP2H 33 55 -35 30 -40 0 200 400 600 800 1000 50 0 1200 100 200 300 400 500 600 700 800 900 1000 1100 Freq (MHz) Freq (MHz) 21 8 20 7 19 6 18 5 Gain 17 4 NF 16 3 15 2 14 1 13 0 200 400 600 800 1000 Note: Data for IP2H fundamental > 500 MHz falls out of band (> 1000 MHz). Noise Figure (dB) Gain (dB) TAT 7468B Gain and Noise Figure 0 1200 Freq (MHz) 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Proprietary and Confidential Specifications subject to change, R90313 Page 3 OIP2 (dBm) S11 & S22 (dB) IP3H -15 Package Pin Outs 16 17 18 19 20 1 8 15 2 7 14 2 3 6 13 3 4 5 12 4 11 5 21 1 9 SOIC8 TOP VIEW 10 9 8 7 6 QFN 4x4mm BOTTOM VIEW PIN NUMBER SOIC8 QFN 4X4mm 1 INPUT A INPUT A 2 NC INPUT A 3 NC NC 4 INPUT B INPUT B 5 OUTPUT B INPUT B 6 BIAS ADJ A NC 7 BIAS ADJ B BIAS ADJ B 8 OUTPUT A NC 9 PADDLE GROUND NC 10 NC 11 OUTPUT B 12 OUTPUT B 13 NC 14 OUTPUT A 15 OUTPUT A 16 NC 17 NC 18 NC 19 BIAS ADJ A 20 NC 21 PADDLE GROUND 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Proprietary and Confidential Specifications subject to change, R90313 Page 4 Mechanical Dimensions (SOIC8, TAT7468B-SC8) Symbol A A1 A2 B C D E1 E1 E1 L y theta L1 Min Nominal 0.054 0.059 0 0.057 0.013 0.007 0.189 0.15 0.153 0.05 0.228 0.236 0.016 0 0.037 0.041 Max 0.068 0.004 0.02 0.01 0.197 0.157 0.244 0.05 0.004 8 0.045 Dimensions in inches 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Proprietary and Confidential Specifications subject to change, R90313 Page 5 Mechanical Specifications (QFN 4x4mm, TAT7468B-QFN), Dimensions in mm TriAccess Technologies uses two variations of Pin #1 identification: Variation A and B. Variation A uses a metal square, Variation B uses the notched pad corner. Both variations may be used at any time. Layouts need to plan for both contingencies. 2255 Challenger Way, Santa Rosa, CA 95407 707-526-4498 www.triaccesstech.com Proprietary and Confidential Specifications subject to change, R90313 Page 6