BU2614 Datasheet, PDF (1/9 Pages) Rohm – PLL frequency synthesizer for tuners

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.)
FFeatures
1) Built-in high-speed prescaler can divide 130MHzVCO.
2) Reference oscillation of 75kHz keeps unnecessary
radiation noise to a low level.
3) Low current dissipation (during operation: 4mA, PLL
OFF 100µA).
4) In addition to the standard FM and AM, also offers the
following 7 frequencies: 25kHz, 12.5kHz, 6.25kHz,
3.125kHz, 5kHz, 3kHz, and 1kHz.
5) Counter for measurement of intermediate frequen-
cies.
6) Unlock detection.
7) Three output ports (open drain).
The BU2615, with seven output ports, is also avail-
able.
8) Serial data input (CE, CK, DA).
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
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