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BU2614FS Datasheet PLL frequency synthesizer for tuners

Manufacturer: ROHM

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Datasheet Details

Part number BU2614FS
Manufacturer ROHM
File Size 132.62 KB
Description PLL frequency synthesizer for tuners
Download BU2614FS Download (PDF)

General Description

s BU2614 / BU2614FS 118 Audio ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VDD1 = VDD2 = 5.0V) BU2614 / BU2614FS 119 Audio ICs FInput data format BU2614 / BU2614FS 120 Audio ICs FExplanation of the data (1) Division data: For D0 through D15 (When S = 1, use D4 through D15.) BU2614 / BU2614FS (2) (3) (4) CT: Frequency measurement beginning data 1: Beginning of measurement 0: Internal counter is reset, IFIN is pulldown.

Output port control data: P0, P1, P2 1: Open drain output ON 2: Open drain output OFF R0, R1, R2, standard frequency data (5) (6) (7) S: switch between FMIN and AMIN 0: FMIN 1: AMIN PS: If this bit is set to ON while AMIN is selected, swallow counter division is possible.

GT: Frequency measurement time and unlock detection ON / OFF (8) TS: Test data (0) is input.

Overview

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 dissipation, and highly sensitive built-in RF amps, they support an IF count function.

FApplications Tuners (Mini components, radio cassette players, radio equipment, etc.

Key Features

  • 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 frequencies. 6) Unlock detection. 7) Three output ports (open drain). The BU2615, with seven output ports, is.

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