ROHM BU2618FV Datasheet

Audio ICs

PLL frequency synthesizer for tuners

BU2618FV

The BU2618FV is a low current dissipation PLL frequency synthesizer designed for use in FM multiplex radio receiver
and FM pager receiver. Featuring very small package and built-in prescaler that can operate at up to 130MHz.

Applications
FM multiplex radio receivers, pagers, radios, and other
signal generators

Features

1) Built-in high-speed prescaler can divide 130
MHzVCO.

2) Low current dissipation (during operation: 1.5mA,
PLL OFF: 200µA Typ.)

3) Seven standard frequencies: 25kHz, 12.5kHz,

6.25kHz, 10kHz, 9kHz, 5kHz, and 1kHz.

4) Counter for intermediate frequency detection.

5) Unlock detection circuit.

6) Four output ports.

7) Serial data input (CE, CK, DA)

Absolute maximum ratings (Ta = 25C)

Recommended operating conditions (Ta = 25C)

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Audio ICs BU2618FV

Block diagram

Pin descriptions

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Audio ICs BU2618FV

Electrical characteristics (unless otherwise noted, Ta = 25C, VDD = 3.0V)

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