BA1451 ROHM [Rohm], BA1451 Datasheet

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... Audio ICs AM radio / FM IF stereo system IC BA1451F The BA1451F is a tuner system IC for electronic tuning for AM radios, FM IF, and MPX. It has been developed for HiFi component applications. The MPX VCO circuit requires no adjustment, which will enable a reduction in the number of production line processes. ...

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... Min. Typ. Max. Unit 3.8 5.0 8.0 V Internal circuit reg 330Ω 1 GND GND 5pF GND 4 6/7 GND 4 BA1451F Quiescent voltage ( 2.1 2.1 5.0 5.0 0.25 0 15kΩ 5.0 5.0 − − − − ...

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... Pilot filter Connect to a capacitor. Internal circuit MUTE IF OUT 10kΩ 8 10kΩ GND GND 10/11 GND reg AM/FM GND reg MONO GND 4 BA1451F Quiescent pin voltage ( 4.2 4.2 1.5 1.5 1.5 1.5 0 2.1 2.1 2.1 ...

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... AM mixer output 19 Connect to primary side of AM IFT. AM antenna 20 Connect to AM antenna. Internal circuit reg 14 15 GND 5kΩ GND 20kΩ GND GND reg 20 GND 4 BA1451F Quiescent pin voltage ( 2.1 2.1 2.1 2.1 2.1 2 5.0 5.0 5.0 5.0 2.1 2.1 ...

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... V − 0.6 1 Input for pin 6 current ≥ 1mA dBµV 300 400 530 mV IF request ON P-P 140 200 280 mVrms BA1451F Quiescent pin voltage ( 2.1 2.1 4.3kΩ 2.1 2.1 2.1 2.1 24 1.7 1.4 Conditions =100dBµV,mono IN =100dBµV, mono IN =100dBµV, mono IN =60dBµV, mod=30% , 400Hz IN =100dBµV, main IN =100dBµ ...

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... OSC MIX SD DET LED GND TUN. ST. IFREQ 3.9k 1 24k +B Sumida 2157-JPS-029 Toko A7BRS-12445X Toko CFMA-258 Sumida 0236-JPS-101 A119ACS-19197N Toko Fig. 1 BA1451F 100p MONO 22 10 10k 6800p DET MPX MUTE REQ 0.22 0.022 OFF 0.01 0.01 MUTE 3.3k IF OUT R-ch L-ch 0 ...

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... TUNING STEREO TO LED etc. Fig. 2 180 S+D+N 170 160 150 140 130 AMR 120 R→L SEP 110 L→R 100 100 120 ( dBµ) IN BA1451F IFIN AGC DET MPX MPX SD AM OUT MONO MUTE REQ IF OUT Rch ...

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... V AGC 1 100 120 ( dBµ External dimensions (Units : mm D+N (30%) 5k 10k 20k BA1451F 60 SEP L→R 50 R→ Vcc=5V f =10.7MHz IN V =100dBµ ∆f=±22.5kHzdev R MAIN pilot=±7.5kHzdev L Ta=25˚C 10 THD SUB MONO 0 ...