BU2618FV Datasheet, PDF (5/8 Pages) Rohm – PLL frequency synthesizer for tuners

Audio ICs
S Explanation of the data
(1) Division data: For D0 through D15 (When S = 0, use D4 through D15.)
BU2618FV
(2) CT: Frequency measurement beginning data
1: Begins measurement.
0: Resets internal counter, IFIN goes to pulldown.
(3) Output port control data:
1: Open drain output ON
2: Open drain output OFF
(4) R0, R1, R2, standard frequency data
(5) 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
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