Audio ASSP | LV25500PQA

FM 多重ブロードキャスト受信チューナ

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Overview

LV25500PLF は、車載 FM 多重放送受信専用チューナ IC で、FM チューナ、PLL、RDS 復調器をシングルチップ化しています。オン・セミコンダクターの独自の技術により、従来のチューナ IC に必要であったコイル、セラミック・フィルタ、バリキャップなどの高周波用の多数の外部コンポーネントを削減できます。AVN をはじめ PND などにも取り付け可能な小型 FM マルチチューナを構成できます。

  • No need for adjustment work.
  • The AF search processing on the main tuner side is unnecessary according to using with the main tuner together.
  • The high sensitivity reception and the high strong input tolerance are united by LNA built into equipped with the WIDE-AGC function.
  • The third and fifth high harmonic rejection type mixers of a local oscillation are adopted.
  • The switch of UPPER/LOWER of a local oscillation and IF-BPF of injection is possible when the image signal is detected.
  • The complex BPF of the image attenuation type is built into.
  • IF-BPF is made built-in by LOW-IF frequency (IF = 575 kHz) adoption.
  • Dynamic range of S meter is wide.
  • S meter tuning-system is adopted.
  • The DLL demodulation method is adopted for FM demodulation circuit.
  • LPF for the carrier removal is built into.
  • S meter level, the adjacent obstruction level, and the multipath can be detected and read by way of I2C BUS.
  • BPF (57 kHz) for the BPSK detection is built into.
  • It becomes easy to miniaturize the tuner set with built-in the RDS demodulator.
  • 36.8MHz is adopted for the crystal oscillation frequency.
  • The number of external parts is little.

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LV25500PQA-NH

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Obsolete

CAD Model

Pb

A

H

P

WQFN-56

510BD

3

260

REEL

2500

N

Tuner

I2C

400

1300

4.5

5.5

-40

85

Price N/A

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