Advance Product Information November 16, 2005 CATV Ultra-Linear Power Amp TGA2801B-SG Key Features and Performance Top View • • • • • • • Bottom View Flat Gain Ultra-Low Distortion (47dBm IP3 typ.) Wide Bandwidth (40MHz-1GHz) Low DC Power Consumption Single Supply Bias (+12V) Surface Mount Package High Power Compression (P1dB 28.5 dBm typ.) Unconditionally Stable Proven GaAs Technology Description Evaluation Boards are available upon request. Lead-free and RoHS compliant • • TGA2801B Gain w/External Balun Effects Removed 14 13 S21 (dB) The TriQuint TGA2801B is an ultra-linear, packaged power amplifier which operates from 40MHz to 1000MHz. The amplifier is packaged in a standard 16 lead SOIC package. The amplifier provides a flat gain along with ultra-low distortion. It also provides a high output power with a low DC power consumption. This amplifier is ideally suited for use in CATV distribution systems or other applications requiring high output powers and extremely low distortion. 12 11 10 Primary Applications • • • 9 HFC Nodes CATV Line Amplifiers Head End Equipment 0 400 600 800 1000 Frequency (MHz) TGA2801B Distortion 114ch 44dBmV Flat Vd=12V, Id=425mA TGA2801B Noise Figure 4.5 -50 4.0 -55 3.5 NF (dB) Distortion (dBc) 200 -60 CTB -65 XMOD 3.0 2.5 2.0 -70 1.5 -75 1.0 0.5 -80 0 100 200 300 400 500 600 700 800 Frequency (MHz) 0.0 0 100 200 300 400 500 600 700 800 900 100 Frequency (MHz) 0 Note: This device is early in the characterization process prior to finalizing all electrical specifications. Specifications are subject to change without notice. TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 1 Advance Product Information November 16, 2005 TGA2801B-SG Maximum Ratings 1/ Symbol Parameter Min Max Units 0 15 V VDD Bias Supply Voltage IDD Bias Supply Current 615 mA PIN RF Input Power 70 dBmV TASSY Assembly Temperature (30 seconds max) 260 °C TSTG Storage Temperature -65 150 °C TCASE Package Operating Temperature (Heat Slug) -40 100 °C 1/ These values reflect maximum operable values for this device. Operating above the recommended values may directly affect MTTF. 2/ Total Current Notes 2/ DC Specifications Symbol Parameter Typ Unit VDD Bias Supply Voltage 12 V IDD Bias Supply Current 425 mA VG1 Gate 1 Voltage (Pin 7) 0.33 V VG2 Gate 2 Voltage (Pin 2) 4.15 V Vout1 RF Output 1 Voltage (Pin 14) VDD V Vout2 RF Output 2 Voltage (Pin 11) VDD V TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 2 Advance Product Information November 16, 2005 TGA2801B-SG RF Specifications TA=25°C, VDD=12V Symbol Parameter Min Typ Units 870 MHz BW Bandwidth S21 Gain 1/ 12.0 dB GF Gain Flatness 1/ ±0.3 dB NF Noise Figure 2.6 dB P1dB 1dB Gain Compression @ 1GHz 28.5 dBm IP3 Two-Tone, Third-Order Intercept (625 & 700MHz) 47 dBm CTB Composite Triple Beat Distortion 2/ -71 dBc CSO Composite Second Order Distortion 2/ -71 dBc Cross Modulation 2/ -60 dBc IRL Input Return Loss 1/ 3/ 22 dB ORL Output Return Loss 1/ 3/ 22 dB Drain Current 4/ 425 XMOD IDD 40 Max 1/ Measured performance of chip alone. Balun effects have been removed. 2/ 112-Channel flat, +44dBmV/channel output 3/ Using application circuit on last page 4/ Increasing drain current will improve linearity of device TriQuint Semiconductor Texas : (972)994 8465 450 Fax (972)994 8504 Web: www.triquint.com mA 3 Advance Product Information November 16, 2005 Typical Measured S-Parameters Using Application Circuit TGA2801B-SG (includes effects of external baluns) 14 S21 (dB) 13 12 11 10 9 0 200 400 600 800 1000 800 1000 Frequency (MHz) 0 S12 (dB) -5 -10 -15 -20 -25 0 200 400 600 Frequency (MHz) TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 4 Advance Product Information November 16, 2005 Typical Measured S-Parameters Using Application Circuit TGA2801B-SG (includes effects of external baluns) 0 S11 (dB) -10 -20 -30 -40 -50 0 200 400 600 800 1000 800 1000 Frequency (MHz) 0 S22 (dB) -10 -20 -30 -40 -50 0 200 400 600 Frequency (MHz) TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 5 Advance Product Information November 16, 2005 TGA2801B-SG Mechanical Specifications 0.406 0.056 0.184 0.296 2 15 3 4 5 6 HEAT SLUG 16 LCI PA - 2001 TGA2801B TGA2801B 1 14 0.234 13 12 11 7 10 8 9 0.087 0.407 0.094 0.050 TriQuint Semiconductor Texas : (972)994 8465 0.016 0.002 Fax (972)994 8504 Web: www.triquint.com 6 Advance Product Information November 16, 2005 TGA2801B-SG 0.406 Pinout 0.296 1 16 2 15 4 5 6 LCI PA - 2001 TGA2801B 3 14 13 12 11 7 10 8 9 Pin Description Pin Description 1 GND 2 Gate 2: Open Circuit on PC Board 3 RF Input 1 4 GND 5 GND 6 RF Input 2 7 Gate 1: Current Adjust R1 = 274Ω to GND 8 GND 9 GND 10 VDD 11 RF Output 2 12 GND 13 GND 14 RF Output 1 15 VDD 16 GND TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 7 Advance Product Information November 16, 2005 Recommended Assembly TGA2801B-SG Component Description Ref C1 0.01µF Capacitor C2 0.01µF Capacitor C3 300pF Capacitor C4 300pF Capacitor C5 - C8 1/ Description 1.0pF - 2.0pF Capacitor 3/ L1 390nH Inductor L2 390nH Inductor R1 Current Adjust 2/ R1 = open circuit T1 Balun 1/ T2 Balun 1/ Balun performance impacts amplifier return losses and gain. Best performance can be achieved by winding 34 or 36 gauge bifilar wire around a small binocular core made from low-loss magnetic material. Suitable wire may be obtained from MWS Wire Industries. Core vendors include Ferronics, Fairrite, TDK, and Micrometals. Alternatively, off-the-shelf baluns can be purchased from a number of vendors including Mini-Circuits (ADTL1-10-75-1 (used for this data), ADTL1-18-75), M/A-COM (ETC1-113), and Pulse Engineering (CX2071). 2/ Current can be adjusted by either changing the resistor value or forcing a voltage on pin 7. 3/ Tunes out balun inductance. Selected for best return loss. TriQuint Semiconductor Texas : (972)994 8465 Fax (972)994 8504 Web: www.triquint.com 8