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VG025 Datasheet(PDF) 1 Page - WJ Communication. Inc. |
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VG025 Datasheet(HTML) 1 Page - WJ Communication. Inc. |
1 / 7 page Specifications and information are subject to change without notice WJ Communications, Inc x Phone 1-800-WJ1-4401 x FAX: 408-577-6621 x e-mail: sales@wj.com x Web site: www.wj.com Page 1 of 7 September 2006 VG025 High Linearity Variable Gain Amplifier Product Information The Communications Edge TM Product Features x Tunable within 50 – 2200 MHz x 21 dB Attenuation Range x Constant +40 dBm OIP3 and +21 dBm P1dB over all gain settings x Single +5V Supply Voltage x 16-pin 4x4mm lead-free/green/ RoHS-compliant QFN Package x MTTF > 1000 years Applications x AGC circuitry x Temperature compensation circuits x DCS/PCS, cdma2000TM , W-CDMA Product Description The VG025 is a high dynamic range variable gain amplifier (VGA) capable of achieving an analog attenuation range of up to 21 dB. The +21 dBm output compression point and +40 dBm output intercept point of the amplifier are maintained over the entire attenuation range, making the VG025 ideal for use in temperature compensation circuits or AGC loops. The VG025 is available in a lead-free/green/RoHS- compliant 16-pin 4x4mm QFN surface-mount package with an exposed backside paddle to allow an MTTF rating of over 1000 years at a mounting temperature of +85º C. All devices are 100% RF & DC tested and packaged on tape and reel for automated surface-mount assembly. Functional Diagram Function Pin Number RF Input 4 Gain Control 8 Interstage Match 6, 10 RF Output / DC bias 12 No Connect or GND All other pins Ground Backside slug Specifications (1) Parameter Units Min Typ Max Operational Bandwidth MHz 50 2200 Test Frequency MHz 800 Gain (2) dB 13.5 15 Input Return Loss (2) dB 6.3 Output Return Loss (2) dB 7.6 Output P1dB dBm 21.3 Output IP3 (3) dBm 37 39 Noise Figure (2) dB 5.3 Gain Variation Range (4) dB 16 21 24 Gain Variation Control Voltage (5) V 0 4.5 Supply Voltage V 5 Operating Current Range mA 120 150 180 Gain Control Pin Current mA 26 28 1. Test conditions unless otherwise noted: 25ºC, Vsupply = +5 V, in tuned application circuit. Vctrl is the control voltage through the 120 : dropping resistor as shown in the application circuit on page 2. 2. Specifications refer to the device at the maximum gain setting (Vctrl=0V). The input and output return loss will be dramatically improved with an attenuation setting greater than 1 dB. 3. 3OIP measured with two tones at an output power of +5 dBm/tone separated by 10 MHz. The suppression on the largest IM3 product is used to calculate the 3OIP using a 2:1 rule. 4. The gain variation range is measured as the difference in gain with Vctrl = 0 and 4.5V at 800 MHz. 5. This voltage refers to the VCTRL as shown in the circuit schematic on page 2. There should be a series resistance of 120 ÃirrrÃurÃp
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hv Absolute Maximum Rating Parameter Rating Operating Case Temperature -40 to +85 qC Storage Temperature -55 to +125 qC Amplifier Supply Voltage (pin 12) +6 V Pin 8 (Gain Control) Current 30 mA RF Input Power (continuous) 4 dB above Input P1dB Junction Temperature +220 qC Operation of this device above any of these parameters may cause permanent damage. Typical Performance (1) Parameter Units Typical Frequency MHz 240 800 1960 2140 Gain (2) dB 15.4 15 8.4 8.4 Input Return Loss (2) dB 11 6.3 12 11 Output Return Loss (2) dB 11 7.6 6.5 5.6 Output P1dB dBm 21.8 21.3 22 22 Output IP3 (3) dBm 42 39 40 40 Noise Figure (2) dB 4.5 5.3 8.1 8.2 Gain Variation Range dB 20 21 14 13 Ordering Information Part No. Description VG025-G High Linearity Variable Gain Amplifier (lead-free/green/RoHS-compliant 4x4mm QFN package) VG025-PCB240 240 MHz Evaluation Board VG025-PCB800 800 MHz Evaluation Board VG025-PCB2000 1.7 – 2.2 GHz Evaluation Board 1 2 3 4 12 11 10 9 16 15 14 13 5 6 7 8 RF OUT N/C Interstage Match N/C N/C N/C N/C RF IN |
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