AM55-0023 Variable Voltage Gain Control Amplifier 0.8 - 2.0 GHz Functional Block Diagram Features • • • • • Highly Integrated Variable Voltage Gain Control Amplifier Operates with 3.0 V to 5 V Supply Voltage Greater than 40 dB dynamic range High Output P1dB: +17 dBm @ 3 V, 19 dBm @ 5V Low Cost 5 mm FQFP-N Package RF Out RF In Description M/A-COM’s AM55-0023 is a high performance, voltage controlled, variable gain amplifier. It has been designed for use in a broad range of applications including cellular base stations and mobile radio where AGC is required to increase system dynamic range. The gain control operates best in the 900 MHz range and also has useable gain to 2.5 GHz. DC current is low at 160 mA at 3V bias and 200 mA at 5V bias. The package is a low cost MLF. The AM55-0023 is fabricated using M/A-COM’s 0.5 micron low noise GaAs MESFET process. The process features full passivation for performance and reliability. VCTL2 VCTL1 Ordering Information Part Number Package AM55-0023 FQFP-N 5.0 mm Plastic Package AM55-0023TR Forward Tape and Reel 1 AM55-0023RTR Reverse Tape and Reel 1 AM55-0023SMB Sample Board 1. If specific reel size is required, consult factory for part number assignment. Electrical Specifications T A = +25° C Parameter Gain Attenuation Range I/P Return Loss O/P Return Loss Units Min. Typ. Frequency = 0.9 GHz Test Conditions dB 23 25 Frequency = 2.0 GHz dB 10 12 Frequency = 0.9 GHz dB 40 44 Frequency = 2.0 GHz dB 37 41 Frequency = 0.9 GHz dB 14 17 Frequency = 2.0 GHz dB 7 10 Frequency = 0.9 GHz dB 11 14 Frequency = 2.0 GHz dB 10 13 dBm 14 18 Noise Figure (min attn) Frequency = 0.9 GHz P1dB Max P1dB when VDDB1,2,3 at 5 V IMD VDDB = 5 V dB 29 32 VDDA = 5 V dB 25 28 Specifications subject to change without notice. n North America: Tel. (800) 366-2266, Fax (800) 618-8883 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. dB 9 Max. 12 V 2.0 1 Variable Voltage Gain Control Amplifier, 2.0 GHz AM55-0023 Pin Configuration Operating Instructions Two pins, VCTL1 and VCTL2 control the attenuation function of this part. Varying these pins between 0 and 4.5 V controls the attenuation. VCTL1 should be controlled first to avoid degrading the input match and noise figure until more attenuation is needed. VCTL1 controls an attenuator with 30 dB of range and VCTL2 15dB of range. PIN The AM55-0023 has two sets of Vdd pins. VDDA1,2 ,3 and VDDB1,2,3. VDDA should be supplied with 5 V. This voltage is internally stepped down to 3 V to reduce current consumption. If current consumption is not a concern OR only 3 V is available to the part then the VDDB pins should be used. Using the VDDB pins with 5 V will also give greater IP3/IMD performance (See graphs). Note: When using one set of bias pins the other should be left open circuited. 1 Absolute Maximum Ratings Parameter Absolute Maximum Input Power2 +20 dBm Operating Voltages2 VDDA/B1,2,3 = +6 volts Operating Temperature -40 °C to +85 °C Storage Temperature -65 °C to +150 °C 1. Exceeding any one or combination of these limits may cause permanent damage. 2. Ambient Temperature (T A) = +25°C No. PIN Name Description 1 Input 2 NC 3 NC 4 NC 5 VCTL2 6 NC 7 NC 8 NC 9 VCTL1 10 NC 11 NC 12 NC 13 Output RF Output 14 VDDB3 Bias Pins 15 VDDA3 Bias Pins 16 VDDA2 Bias Pins 17 VDDB2 Bias Pins 18 VDDB1 Bias Pins 19 VDDA1 Bias Pins 20 NC RF Input Second Attenuation Control First Attenuation Control Typical Performance Curves Input Return Loss (over full attenuation range) Output Return Loss (over full attenuation range 0 0 -5 -5 -10 -15 dB dB -10 -15 -20 -25 -30 -35 -20 -40 -45 -25 0.6 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0.8 1 1.2 1.4 FREQUENCY (GHz) 1.6 1.8 2 FREQUENCY (GHz) Specifications subject to change without notice. n North America: Tel. (800) 366-2266, Fax (800) 618-8883 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 2.0 2 Variable Voltage Gain Control Amplifier, 2.0 GHz AM55-0023 Typical Performance Curves (Cont’d) Attenuation Range Noise Figure 35 12 25 10 15 8 dB dB 5 -5 6 4 -15 2 -25 -35 0.6 0.8 1.0 1.2 1.4 1.6 1.8 0 0.4 2.0 0.6 0.8 FREQUENCY (GHz) 1.0 1.2 1.4 FRQUENCY (GHz) Swept IMD (VDDB Pins at 5V) Swept IMD (VDDA Pins at 5V) 30 40 35 25 30 25 dB dB 20 15 20 15 10 10 5 5 0 0 0.5 0.6 0.7 0.8 0.9 1 1.1 1.2 0.5 1.3 0.6 0.7 FREQUENCY (GHz) P1dB at 800 MHz (VDDA Pins 5V Supply) 1.0 1.1 1.2 1.3 P1dB at 900 MHz (VDDA Pins 5V Supply) 0 20 0 18 -1 -2 12 -3 10 8 -4 6 4 16 -14 -12 -10 -8 -3 6 -4 0 -5 -25 -6 -20 PIN (dBm) 0 -3 -4 -5 -10 -5 0 PIN (dBm) Specifications subject to change without notice. n North America: Tel. (800) 366-2266, Fax (800) 618-8883 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. POUT (dBm) -2 Relative Gain (dB) -1 -15 -5 P1dB at 900 MHz (VDDB Pins 5V Supply) P1dB at 800 MHz (VDDB Pins 5V Supply) -20 -10 PIN (dBm) 22 20 18 16 14 12 10 8 6 4 2 0 -25 -15 25 0 20 -0.5 -1 15 -1.5 10 -2 5 -2.5 0 Relative Gain (dB) -16 -2 10 8 2 -6 -18 12 4 -5 2 0 -20 -1 14 POUT (dBm) 14 Relative Gain (dB) 16 Relative Gain (dB) 18 POUT (dBm) 0.9 FREQUENCY (GHz) 20 POUT (dBm) 0.8 -3 -5 -3.5 -20 -15 -10 -5 0 PIN (dBm) V 2.0 3 Variable Voltage Gain Control Amplifier, 2.0 GHz 5 mm FQFP-N - 201 5 mm FQFP-N - 20 A A2 D D1 E AM55-0023 Measurement (mm) A3 A1 E1 Dim. Min. Nom. Max. A 0.80 0.90 1.00 A1 0 0.02 0.05 A2 0 0.65 1.00 A3 b 20 x b D2 0.23 D e D2 4xe L e 4xe 1. See JEDEC MO-220A VHHC for additional dimensional and tolerance information External Components1, 2 VDDA/B C 0.30 0.38 5.00 basic D1 E2 L 0.25 ref. 4.75 basic 1.25 2.70 e 0.65 basic E 5.00 basic E1 4.75 basic 3.25 E2 1.25 2.70 3.25 L 0.35 0.55 0.75 Sample Board VDDA/B L C VDDA/B L C RFOUT RFIN VCTL2 VCTL1 Component Value L 68nH C 100pF 1. See Operating Instructions for details on VDD pins. 2. Requires 6 external components. Specifications subject to change without notice. n North America: Tel. (800) 366-2266, Fax (800) 618-8883 n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298 n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020 Visit www.macom.com for additional data sheets and product information. V 2.0 4