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AM55-0023TR Datasheet(PDF) 2 Page - Tyco Electronics |
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AM55-0023TR Datasheet(HTML) 2 Page - Tyco Electronics |
2 / 4 page 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 Specifications subject to change without notice. Visit www.macom.com for additional data sheets and product information. V 2.0 Variable Voltage Gain Control Amplifier, 2.0 GHz AM55-0023 Pin Configuration PIN No. PIN Name Description 1 Input RF Input 2 NC 3 NC 4 NC 5 VCTL2 Second Attenuation Control 6 NC 7 NC 8 NC 9 VCTL1 First Attenuation Control 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 2 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. 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. Typical Performance Curves -25 -20 -15 -10 -5 0 0.6 0.8 1 1.2 1.4 1.6 1.8 2 FREQUENCY (GHz) Output Return Loss (over full attenuation range -45 -40 -35 -30 -25 -20 -15 -10 -5 0 0.6 0.8 1 1.2 1.4 1.6 1.8 2 FREQUENCY (GHz) Input Return Loss (over full attenuation range) Absolute Maximum Ratings 1 Parameter Absolute Maximum Input Power 2 +20 dBm Operating Voltages 2 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 (TA) = +25 °C |
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