BU2614 Rohm, BU2614 Datasheet
BU2614
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BU2614 Summary of contents
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... Audio ICs PLL frequency synthesizer for tuners BU2614 / BU2614FS The BU2614 PLL frequency synthesizers work up through the FM band. Featuring low radiation noise, low power dis- sipation, and highly sensitive built-in RF amps, they support an IF count function. FApplications Tuners (Mini components, radio cassette players, radio equipment, etc ...
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... Audio ICs FBlock diagram FPin assignments BU2614 / BU2614FS 117 ...
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... Audio ICs FPin descriptions 118 BU2614 / BU2614FS ...
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... Audio ICs FElectrical characteristics (unless otherwise noted 25_C, V BU2614 / BU2614FS 5.0V 119 ...
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... Audio ICs FInput data format 120 BU2614 / BU2614FS ...
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... S: switch between FMIN and AMIN 0: FMIN 1: AMIN (6) PS: If this bit is set to ON while AMIN is selected, swallow counter division is possible. (7) GT: Frequency measurement time and unlock detection ON / OFF (8) TS: Test data (0) is input. (When use D through BU2614 / BU2614FS .) 121 ...
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... How the unlock detection circuit operates When control data GT equals equals 1, the un- lock detection circuit goes into operation for 8ms. When CT equals 1, the unlock detection circuits stops operating before the frequency counter gate pulse is emitted. 122 BU2614 / BU2614FS (3) Explanation of output data D : LSB D ...
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... Explanation of CD terminal When frequency measurement or unlock detection is fin- ished, the CD terminal goes indicate that the count and unlock detection have finished. BU2614 / BU2614FS It also synchronizes with CK to output counter data. When the next data is input, it goes to HI. 123 ...
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... Audio ICs FExternal dimensions (Units: mm) 124 BU2614 / BU2614FS ...