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AP603 Datasheet(PDF) 8 Page - WJ Communication. Inc. |
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AP603 Datasheet(HTML) 8 Page - WJ Communication. Inc. |
8 / 14 page Specifications and information are subject to change without notice WJ Communications, Inc • Phone 1-800-WJ1-4401 • FAX: 408-577-6621 • e-mail: sales@wj.com • Web site: www.wj.com Page 8 of 14 May 2007 ver 1 AP603 High Dynamic Range 7W 28V HBT Amplifier 1930-1990 MHz Application Note: Changing Icq Biasing Configurations The AP603 can be configured to be operated with lower bias current by varying the bias-adjust resistor – R2. The recommended circuit configurations shown previously in this datasheet have the device operating with a 160 mA as the quiescent current (ICQ). This biasing level represents the best tradeoff in terms of linearity and efficiency. Lowering ICQ will improve upon the efficiency of the device, but degraded linearity. Increasing ICQ has nominal improvement upon the linearity, but will degrade the device’s efficiency. Measured data shown in the plots below represents the AP603 measured and configured for 1.96 GHz applications. It is expected that variation of the bias current for other frequency applications will produce similar performance results. Icq (mA) R2 (Ω) VPD (V) PIN_VPD (V) 20 4.32k 5 2.46 40 2.33k 5 2.52 80 1.24k 5 2.61 120 852 5 2.68 160 649 5 2.74 200 521 5 2.80 260 398 5 2.89 320 313 5 2.98 Thermal Rise vs. Output Power vs. Icq Vcc = 28V 0 20 40 60 80 100 18 20 22 24 26 28 30 32 Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA C28 3.3pF C7 1000pF 100pF L3 C5 3.3pF C29 1.2pF 100pF W = .030” L = 1.035” 4.7 nH ACLR1 vs. Output Power vs. Icq WCDMA, Vcc = 28V, 1960 MHz, 25 ˚C -65 -60 -55 -50 -45 -40 -35 22 24 26 28 30 32 Average Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA Icc vs. Output Power vs. Icq WCDMA, Vcc = 28V, 1960 MHz, 25 ˚C 0 100 200 300 400 22 24 26 28 30 32 Average Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA Efficiency vs. Output Power vs. Icq WCDMA, Vcc = 28V, 1960 MHz, 25 ˚C 0 5 10 15 20 25 22 24 26 28 30 32 Average Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA Gain vs. Output Power vs. Icq CW tone, Vcc = 28V, 1960 MHz, 25 ˚C 9 10 11 12 13 14 22 26 30 34 38 Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA Output Power vs. Input Power vs. Icq CW tone, Vcc = 28V, 1960 MHz, 25 ˚C 22 26 30 34 38 10 14 18 22 26 Input Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA Efficiency vs. Output Power vs. Icq CW tone, Vcc = 28V, 1960 MHz, 25 ˚C 0 10 20 30 40 50 22 26 30 34 38 Output Power (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA OIP3 vs. Output Power vs. Icq CW Two-tone signal, 1960 MHz, ∆f = 1 MHz, Vcc = 28V, 25 ˚C 30 35 40 45 50 55 26 28 30 32 34 36 Output Power, PEP (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA IMD3 vs. Output Power vs. Icq CW Two-tone signal, 1960 MHz, ∆f = 1 MHz, Vcc = 28V, 25 ˚C -60 -50 -40 -30 -20 26 28 30 32 34 36 Output Power, PEP (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA IMD5 vs. Output Power vs. Icq CW Two-tone signal, 1960 MHz, ∆f = 1 MHz, Vcc = 28V, 25 ˚C -80 -70 -60 -50 -40 -30 -20 26 28 30 32 34 36 Output Power, PEP (dBm) 20 mA 40 mA 80 mA 120 mA 160 mA 200 mA 260 mA 320 mA |
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