temperature compensated amplifiers afs series frequency gain gain noise vswr output power nom. dc model range window flatness figure in/out @ 1 db comp. pow er outline number (ghz) (db) (db, max.) (db, max.) (max.) (dbm, min .) (15 v, ma) drawing afs2-01000200-15-tc-6 1?2 25-29 1 1.5 2:1 5 125 6 afs3-01000200-15-tc-6 1?2 36-40 1 1.5 2:1 5 125 6 afs2-02000400-15-tc-6 2?4 22-26 1 1.5 2:1 5 125 6 afs3-02000400-15-tc-6 2?4 26-30 1 1.5 2:1 5 125 6 afs2-04000800-20-tc-2 4?8 17-22 1 2 2:1 5 70 2 afs3-04000800-18-tc-4 4?8 25-30 1 1.8 2:1 8 100 4 afs2-02000800-40-tc-2 2?8 14-19 1.5 4 2:1 5 70 2 afs3-02000800-30-tc-4 2?8 22-27 1.5 3 2:1 8 150 4 afs4-02000800-26-tc-4 2?8 30-36 1.5 2.6 2:1 8 120 4 afs2-08001200-30-tc-2 8?12 12-16 1 3 2:1 5 70 2 afs3-08001200-22-tc-4 8?12 24-28 1 2.2 2:1 8 100 4 afs4-08001200-20-tc-4 8?12 30-34 1 2 2:1 8 150 4 afs4-12001800-30-tc-8 12?18 22-26 1 3 2:1 8 250 8 afs6-12001800-30-tc-8 12?18 28-32 1 3 2:1 8 400 8 afs4-08001800-35-tc-8 8?18 22-26 1 3.5 2:1 8 250 8 afs6-08001800-35-tc-8 8?18 30-34 1 3.5 2:1 8 400 8 afs4-06001800-35-tc-8 6?18 22-26 1 3.5 2:1 8 250 8 afs6-06001800-35-tc-8 6?18 30-34 1 3.5 2:1 8 400 8 AFS4-02001800-45-TC-5 2?18 18-24 1.5 4.5 2.2:1 8 120 5 afs5-02001800-45-tc-6 2?18 22-28 1.5 4.5 2.2:1 8 175 6 notes: all specifications guaranteed -54 to +85c. please contact the factory for other frequencies, n oise figures, and gain options. see page 59 for out line. in any solid state amplifier, both the gain and the noise figure will vary as a function of temperature . the overall gain of an uncompensated amplifier tend s to decrease as the base plate temperature increases, while the noise figure will exhibit the opposite ef fect and increase as the temperature rises. the amount of change in gain is directly proportional to the n um- ber of stages in the device, the operating frequenc y, and the way the individual stages have been biased. in order to reduce this variation, it is often nece ssary to temperature compensate the amplifier. AFS4-02001800-45-TC-5 typical data 2 30 32 34 36 38 40 4 6 8 10 frequency (ghz) gain vs. temperature gain (db) 12 14 16 18 +85c -54c +25c 39
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