SGA-6486 Product Description DC-4500 MHz, Cascadable SiGe HBT MMIC Amplifier Sirenza Microdevices SGA-6486 is a high performance SiGe HBT MMIC Amplifier. A Darlington configuration featuring 1 micron emitters provides high F T and excellent thermal perfomance. The heterojunction increases breakdown voltage and minimizes leakage current between junctions. Cancellation of emitter junction non-linearities results in higher suppression of intermodulation products. At 850 Mhz and 80mA , the SGA6486 typically provides +35 dBm output IP3, 19.7 dB of gain, and +20.2 dBm of 1dB compressed power using a single positive voltage supply. Only 2 DC-blocking capacitors, a bias resistor and an optional RF choke are required for operation. Product Features High Gain : 16.4 dB at 1950 MHz Cascadable 50 Ohm Patented SiGe Technology Gain & Return Loss vs. Frequency VD= 5.1 V, ID= 75 mA (Typ.) GAIN 18 Gain (dB) Operates From Single Supply Low Thermal Resistance Package 0 -10 ORL 12 -20 IRL 6 -30 Return Loss (dB) 24 Applications PA Driver Amplifier Cellular, PCS, GSM, UMTS TL=+25ºC 0 IF Amplifier Wireless Data, Satellite -40 0 1 2 3 Frequency (GHz) Sy mbol G 4 5 Parameter Small Signal Gain Units Frequency Min. Ty p. Max. dB 850 M Hz 1950 M Hz 2400 M Hz 18.0 19.7 16.4 14.8 22.0 P1dB Output Pow er at 1dB Compression dBm 850 M Hz 1950 M Hz 20.2 18.5 OIP3 Output Third Order Intercept Point dBm 850 M Hz 1950 M Hz 35.0 32.0 Bandw idth Determined by Return Loss (>10dB) IRL M Hz 4500 Input Return Loss dB 1950 M Hz 21.4 Output Return Loss dB 1950 M Hz 18.0 NF Noise Figure dB 1950 M Hz 3.3 VD Device Operating Voltage V 4.7 5.1 5.5 ID Device Operating Current mA 67 75 83 ORL RTH, j-l Thermal Resistance (junction to lead) Test Conditions: VS = 8 V RBIAS = 39 Ohms °C/W ID = 75 mA Typ. TL = 25ºC 97 OIP3 Tone Spacing = 1 MHz, Pout per tone = 0 dBm ZS = ZL = 50 Ohms The information provided herein is believed to be reliable at press time. Sirenza Microdevices assumes no responsibility for inaccuracies or omissions. Sirenza Microdevices assumes no responsibility for the use of this information, and all such information shall be entirely at the users own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Sirenza Microdevices does not authorize or warrant any Sirenza Microdevices product for use in life-support devices and/or systems. Copyright 2001 Sirenza Microdevices, Inc.. All worldwide rights reserved. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 1 http://www.sirenza.com EDS-100615 Rev D Preliminary SGA-6486 DC-4500 MHz Cascadable MMIC Amplifier Typical RF Performance at Key Operating Frequencies Sy mbol G Parameter Small Signal Gain Unit 100 Frequency (MHz) Frequency Frequency (MHz)(MHz) 500 850 1950 2400 3500 dB 21.0 20.3 19.7 16.4 14.8 12.3 32.0 31.0 26.5 OIP3 Output Third Order Intercept Point dBm 35.0 35.3 35.0 P1dB Output Pow er at 1dB Compression dBm 20.2 20.3 20.2 18.5 17.5 14.7 IRL Input Return Loss dB 32.2 23.3 22.8 21.4 17.4 14.4 ORL Output Return Loss dB 16.8 18.2 23.0 18.0 17.4 14.2 S12 Reverse Isolation dB 24.0 23.9 23.6 21.2 19.7 16.6 NF Noise Figure dB 3.2 2.9 3.0 3.3 3.7 4.4 Test Conditions: VSS== 88 V V V RBIAS = 39 Ohms R BIAS= 39 Ohms 75 mA mA Typ. Typ. IIDD == 80 25ºC TTLL == 25ºC OIP33 Tone Tone Spacing Spacing == 11 MHz, MHz, Pout Pout per per tone tone == 00 dBm dBm OIP 50 Ohms Ohms ZZSS== ZZLL== 50 Absolute Maximum Ratings Noise Figure vs. Frequency VD= 5.1 V, ID= 75 mA Noise Figure (dB) 5 4 1 2 Frequency (GHz) 3 150 mA 7V Max. RF Input Pow er +18 dBm +150°C -40°C to +85°C Max. Storage Temp. +150°C Operation of this device beyond any one of these limits may cause permanent damage. For reliable continous operation, the device voltage and current must not exceed the maximum operating values specified in the table on page one. 0 0 Max. Device Current (ID) Max. Device Voltage (VD) Max. Junction Temp. (TJ) 2 1 Absolute Limit Operating Temp. Range (TL) 3 TL=+25ºC Parameter 4 Bias Conditions should also satisfy the follow ing expression: IDVD < (TJ - TL) / RTH, j-l OIP3 vs. Frequency P1dB vs. Frequency VD= 5.1 V, ID= 75 mA 40 22 36 20 P1dB(dBm) OIP3(dBm) VD= 5.1 V, ID= 75 mA 32 28 +25°C TL 24 18 16 +25°C TL 14 -40°C +85°C -40°C +85°C 20 12 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 0.0 Frequency (GHz) 522 Almanor Ave., Sunnyvale, CA 94085 0.5 1.0 1.5 2.0 2.5 3.0 3.5 Frequency (GHz) Phone: (800) SMI-MMIC 2 http://www.sirenza.com EDS-100615 Rev D Preliminary SGA-6486 DC-4500 MHz Cascadable MMIC Amplifier |S | vs. Frequency |S | vs. Frequency 21 11 VD= 5.1 V, ID= 75 mA 24 0 -10 |S11| (dB) 18 |S21| (dB) VD= 5.1 V, ID= 75 mA 12 6 0 0 1 2 3 Frequency (GHz) -30 +25°C -40°C +85°C TL 4 -20 -40 0 5 1 |S | vs. Frequency 5 VD= 5.1 V, ID= 75 mA 0 -10 |S22| (dB) |S12| (dB) 4 22 -15 -20 -25 -30 0 1 2 3 4 -20 -30 +25°C -40°C +85°C TL -40 5 0 VD vs. ID over Temperature for fixed VS= 8 V, RBIAS= 39 ohms * 90 85 1 2 3 Frequency (GHz) 4 5 VD vs. Temperature for Constant ID = 75 mA 5.7 5.5 +85°C VD(Volts) 80 +25°C 75 +25°C -40°C +85°C TL Frequency (GHz) ID(mA) 2 3 Frequency (GHz) |S | vs. Frequency 12 VD= 5.1 V, ID= 75 mA -10 +25°C -40°C +85°C TL 70 5.3 5.1 -40°C 4.9 65 4.7 60 4.7 4.9 5.1 VD(Volts) 5.3 -40 5.5 -15 10 35 Temperature(°C) 60 85 * Note: In the applications circuit on page 4, RBIAS compensates for voltage and current variation over temperature. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 3 http://www.sirenza.com EDS-100615 Rev D Preliminary SGA-6486 DC-4500 MHz Cascadable MMIC Amplifier Basic Application Circuit Application Circuit Element Values R BIAS VS 1 uF 1000 pF 500 850 1950 2400 3500 CB 220 pF 100 pF 68 pF 56 pF 39 pF CD 100 pF 68 pF 22 pF 22 pF 15 pF LC 68 nH 33 nH 22 nH 18 nH 15 nH CD LC 4 1 SGA-6486 3 RF in RF out CB 2 CB Frequency (Mhz) Reference Designator R ecommended B ias R esistor Values for ID=75mA R BIAS=( VS-VD ) / ID Supply Voltage(VS) RBIAS VS A64 CB LC 13 8V 39 10 V 12 V 62 91 Note: RBIAS provi des D C bi as stabi li ty over temperature. 1 uF RBIAS 6V 1000 pF Mounting Instructions CD 1. Use a large ground pad area under device pins 2 and 4 with many plated through-holes as shown. CB 2. We recommend 1 or 2 ounce copper. Measurements for this data sheet were made on a 31 mil thick FR-4 board with 1 ounce copper on both sides. Part Identification Marking The part will be marked with an A64 designator on the top surface of the package. 3 4 A64 Function 1 RF IN RF input pin. This pin requires the use of an external DC blocking capacitor chosen for the frequency of operation. 2, 4 GND Connection to ground. For optimum RF performance, use via holes as close to ground leads as possible to reduce lead inductance. 2 3 1 Description RF OUT/ RF output and bias pin. DC voltage is BIAS present on this pin, therefore a DC blocking capacitor is necessary for proper operation. Part Number Ordering Information Caution: ESD sensitive Appropriate precautions in handling, packaging and testing devices must be observed. 522 Almanor Ave., Sunnyvale, CA 94085 Pin # Part Number Reel Size Devices/Reel SGA-6486 13" 3000 Phone: (800) SMI-MMIC 4 http://www.sirenza.com EDS-100615 Rev D Preliminary SGA-6486 DC-4500 MHz Cascadable MMIC Amplifier PCB Pad Layout Dimensions in inches [millimeters] Nominal Package Dimensions Dimensions in inches [millimeters] Refer to drawing posted at www.sirenza.com for tolerances. 522 Almanor Ave., Sunnyvale, CA 94085 Phone: (800) SMI-MMIC 5 http://www.sirenza.com EDS-100615 Rev D