Product Data Sheet January 15, 2008 CATV TIA/Gain Block TGA2803-SM Key Features and Performance * * * * TGA 2803 Top View Frequency Range: 40MHz - 1GHz 20 dB Flat Gain 800 Transimpedance * <5pA/ Hz Equivalent Input Noise Current * 1.5 dB 75 Noise Figure Ultra-Low Distortion (45dBm IP3 typ.) Low DC Power Consumption Single Supply Bias (+8V) Proven GaAs Technology 20L Package Dimension: 4.0 x 4.0 x 0.9 mm * * * * * * Bottom View Product Description * Includes 1:1 balun, No photodiode or auto- The TriQuint TGA2803-SM is an ultralinear, packaged TIA/Gain Block which operates from 40MHz to 1000MHz. transformer Primary Applications * * * The TGA2803-SM typically provides flat gain along with ultra-low distortion. It also provides high output power with low DC power consumption. HFC Nodes CATV Line Amplifiers Head End Equipment 75 Output TOI 55 51 OTOI (dBm) This amplifier is ideally suited for use in CATV distribution systems or other applications requiring extremely low noise and distortion. 47 43 39 Demonstration Boards are available. 35 0 Lead-free and RoHS compliant. 300 400 500 600 700 800 900 Input Referred Current Noise with High Impedance source 6 Noise Current(pA/rt(Hz)) 20 Gain (dB) 200 Frequency (MHz) Typical 75 Gain w/External Balun Losses Removed 24 100 16 12 8 4 0 5 4 3 2 1 0 0 200 400 600 800 Frequency (MHz) 1000 1200 0 200 400 600 800 1000 1200 F req u en cy (M H z) TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 1 Product Data Sheet January 15, 2008 TGA2803-SM Table I Maximum Ratings 1/ Symbol Parameter Min Max Units 0 15 V Notes VDD Bias Supply Voltage IDD Bias Supply Current 500 mA 1/ 2/ PIN RF Input Power 77 dBmV 3/ Assembly Temperature (30 seconds max) 260 C TCH Channel Temperature 150 C TSTG Storage Temperature 150 C TASSY -65 1/ These values reflect maximum operable values for this device. Operating above the recommended values may directly affect Tm. 2/ Total Current 3/ Total Input Power Table II DC Specifications Symbol Parameter Typ Unit VDD Bias Supply Voltage 8 V IDD Bias Supply Current 350 mA VG1 Gate 1 Voltage (Pin 19) 0.90 V VG2 Gate 2 Voltage (Pin 7) 2.66 V Vout1 RF Output 1 Voltage (Pin 14/15) VDD V Vout2 RF Output 2 Voltage (Pin 11/12) VDD V TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 2 Product Data Sheet January 15, 2008 TGA2803-SM Table III RF Specifications 1/ TA=25C, VDD=8V Symbol Parameter Min Max Units Note 1000 MHz 26 dB 2/ BW Bandwidth 40 S21 Power Gain 17 GF Gain Flatness 0.3 dB 2/ NF Noise Figure 1.5 dB 2/ TZ Transimpedance 800 Equivalent Input Current Noise 5 pA/rtHz IP3 Two-Tone, Third-Order Intercept (450 MHz) 46 dBm IP3 Two-Tone, Third-Order Intercept (750 MHz) 42 dBm 2/ 3/ dBc 5/ In nd rd 20 39 th Harmonics (2 , 3 , 4 ) (40 to 500MHz) -64 IRL Input Return Loss 16 dB ORL Output Return Loss 20 dB Drain Current 350 ID P_sat 1/ 2/ 3/ 4/ 5/ 6/ Typ Saturated Output Power (750 MHz) 26 -58 500 28 mA 4/ 6/ dBm Using electrical application circuit on pg. 8 1:1 Balun losses have been removed from the measurement Measured at 16dBm output power per tone Measured with open-circuited input Measured at 15dBm fundamental frequency output power Increasing drain current will improve linearity of device TABLE IV THERMAL INFORMATION Parameter JC Thermal Resistance (channel to backside of package) Test Conditions Vd = 8 V Id = 350 mA Pdiss = 2. 8 W TCH (oC) JC (C/W) TM (HRS) 128 15.4 7.2 E+6 Note: Worst case condition with no RF applied, 100% of DC power is dissipated. Package backside temperature @ 85 C TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 3 Product Data Sheet January 15, 2008 TGA2803-SM Typical Measured S-Parameters (75 ) Using Application Circuit (includes effects of external baluns) 0 -4 -8 S11(dB) -12 -16 -20 -24 -28 -32 -36 -40 0 200 400 600 800 1000 1200 Frequency (MHz) 0 24 -5 -10 16 S12 (dB) S21 (dB) 20 12 8 -15 -20 -25 -30 4 -35 -40 0 0 200 400 600 800 1000 0 1200 200 400 600 800 1000 1200 Frequency (MHz) Frequency (MHz) 0 -5 S22 (dB) -10 -15 -20 -25 -30 -35 -40 0 200 400 600 800 1000 1200 Frequency (MHz) TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 4 Product Data Sheet January 15, 2008 TGA2803-SM Typical Measured Performance Using Application Circuit (includes effects of external baluns) 55 OTOI (dBm) 51 47 43 39 35 0 100 200 300 400 500 600 700 800 900 Frequency (MHz) Input balun losses removed 5 4.5 5 4 Noise Figure(dB) Noise Current(pA/rt(Hz)) 6 4 3 2 3.5 3 2.5 2 1.5 1 1 0.5 0 0 0 200 400 600 800 Frequency (M Hz) 1000 1200 0 200 400 600 800 1000 1200 Frequency(MHz) TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 5 Product Data Sheet January 15, 2008 TGA2803-SM Mechanical Specifications TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 6 Product Data Sheet January 15, 2008 TGA2803-SM Pinout TGA 2803 Top Side Bottom Side Dot indicates Pin 1 Pin Description Pin Description 1 RF Input 1 11 RF Output 2 2 RF Input 1 12 RF Output 2 3 GND 4 RF Input 2 14 RF Output 1 5 RF Input 2 15 RF Output 1 6 NC 16 NC 7 VG2 (Optional) 17 VDD (choked) 8 VDD 18 VDD 9 VDD (choked) 19 VG1 (Optional) 10 Isense 1/ 20 NC 13, 21 GND 1/ Bias current monitor: I_sense = (Voltage_pin 10) / 4 TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 7 Product Data Sheet January 15, 2008 TGA2803-SM Application Diagrams Electrical Gain Amplifier Electrical In 75 TGA 2803 Push-Pull TIA Balun Electrical Out 75 Balun Optical Receiver Fiber In Photodiode + Transformer Balun TGA 2803 Push-Pull TIA Balun Electrical Out 75 TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 8 Product Data Sheet January 15, 2008 TGA2803-SM Recommended Electrical Assembly +8V C5 L1 RF IN T1 C1 1 20 19 18 17 16 2 C2 12 6 7 8 9 10 C4 11 C6 L2 Component Description Ref 1/ RF OUT 13 4 5 T2 14 TGA 2803 3 C3 15 +8V Description C1 0.01F Capacitor C2 0.01F Capacitor C3 470pF Capacitor C4 470pF Capacitor C5 270pF Capacitor C6 270pF Capacitor L1 820nH Inductor L2 820nH Inductor 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 (ADTL1-18-75), M/A-COM (ETC1-1-13), and Pulse Engineering (CX2071). TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 9 Product Data Sheet January 15, 2008 TGA2803-SM Recommended Electro-Optical Assembly +8V Single-Mode Fiber -15V C5 L1 PD RFout T1 C1 C2 1 2 3 4 5 20 19 18 17 16 TGA 2803 6 7 8 9 10 C3 15 14 13 12 11 Component Description Ref 1/ T2 RF OUT C4 C6 L2 Description C1 0.01F Capacitor C2 0.01F Capacitor C3 470pF Capacitor C4 470pF Capacitor C5 270pF Capacitor C6 270pF Capacitor L1 820nH Inductor L2 820nH Inductor T1 Balun 1/ T2 Balun 1/ PD Broadband Photodiode 2/ +8V 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 (ADTL1-18-75), M/A-COM (ETC1-1-13), and Pulse Engineering (CX2071). 2/ Emcore 2609C Broadband Photodiode Module is recommended. The module includes a 4:1 impedance transformer. TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 10 Product Data Sheet January 15, 2008 TGA2803-SM Recommended Surface Mount Package Assembly Proper ESD precautions must be followed while handling packages. Clean the board with acetone. Rinse with alcohol. Allow the circuit to fully dry. TriQuint recommends using a conductive solder paste for attachment. Follow solder paste and reflow oven vendors' recommendations when developing a solder reflow profile. Typical solder reflow profiles are listed in the table below. Hand soldering is not recommended. Solder paste can be applied using a stencil printer or dot placement. The volume of solder paste depends on PCB and component layout and should be well controlled to ensure consistent mechanical and electrical performance. Clean the assembly with alcohol. Typical Solder Reflow Profiles Reflow Profile SnPb Pb Free Ramp-up Rate 3 C/sec 3 C/sec Activation Time and Temperature 60 - 120 sec @ 140 - 160 C 60 - 180 sec @ 150 - 200 C Time above Melting Point 60 - 150 sec 60 - 150 sec Max Peak Temperature 240 C 260 C Time within 5 C of Peak Temperature 10 - 20 sec 10 - 20 sec Ramp-down Rate 4 - 6 C/sec 4 - 6 C/sec Ordering Information Part Package Style TGA2803-SM QFN 20L 4x4 Surface Mount GaAs MMIC devices are susceptible to damage from Electrostatic Discharge. Proper precautions should be observed during handling, assembly and test. TriQuint Semiconductor Texas: Phone (972)994-8465 Fax (972)994-8504 Email: Info-mmw@tqs.com Web: www.triquint.com 11