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BA1451F Datasheet(PDF) 8 Page - Rohm |
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BA1451F Datasheet(HTML) 8 Page - Rohm |
8 / 8 page BA1451F Audio ICs 3 45 6 7 8 9 10.80 10.75 10.70 10.65 10.60 10.55 POWER SUPPLY VOLTAGE : Vcc (V) RBW=20k Ω, VIN=100dBµ Ta=25˚C Fig.5 FM bandwidth vs. power supply voltage 50 40 30 20 1 10 0 2 0 FREQUENCY : fm (Hz) 50 100 200 500 1k 2k 5k 10k 20k SEP THD Vcc=5V fIN=10.7MHz VIN=100dB µ ∆f=±22.5kHzdev pilot=±7.5kHzdev Ta=25˚C L →R R →L 60 MAIN R L SUB MONO Fig.6 Channel separation and THD vs. frequency Fig.7 AM input / output characteristics 10 0 −10 −20 −30 −40 −50 −60 −70 −20 0 50 100 120 INPUT VOLTAGE : VIN (dB µ) VOUT=5V, fIN=1000kHz, fm=1kHz MOD=30%, Ta=25˚C S+D+N VAGC N D+N (80%) D+N (30%) 0 1 2 3 4 5 6 7 8 9 10 S / N=20dB 0 1.0 2.0 3.0 LED ON fIN=1000kHz, VIN=74dB µ, MOD=30% fm=1kHz, Ta=25˚C POWER SUPPLY VOLTAGE : VCC (V) 100 90 80 70 60 50 40 30 20 10 0 10 9 8 7 6 5 4 3 2 1 0 34 5 6 7 8 9 Vo TUNED ON Q.S. 100 90 80 70 60 50 40 30 20 10 0 Fig.8 AM characteristics vs. power suppy voltage D+N (80%) D+N (30%) ! ! ! !External dimensions (Units : mm) Fig.9 AM detector output and THD vs. frequency FREQUENCY : fm (Hz) 10 0 −20 −40 −50 −60 −70 −10 −30 50 100 200 500 1k 2k 5k 10k 20k VO D+N (80%) D+N (30%) VCC =5V fIN =1000MHz VIN =74dB µ MOD =30% Ta =25˚C 0 5 10 SOP24 0.15 0.4 ± 0.1 15.0 ± 0.2 0.3Min. 24 1 13 12 1.27 |
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