Datasheet > LV25500PQA-NH

LV25500PQA-NH

更新时间： 2024-11-26 11:14:03

品牌	Logo	应用领域
安森美 - ONSEMI		/
页数	文件大小	规格书
13页	489K
描述
调频 (FM) 多路复用广播接收调谐器

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LV25500PQA-NH 数据手册

LV25500PQA

Bi-CMOS LSI

http://onsemi.com

FM Multiplex Broadcasting

Receive Tuner

Overview

LV25500PQA is in-vehicle FM multiplex broadcasting receive only tuner

IC that makes FM tuner, PLL, and the RDS demodulator single-chip.

ON Semiconductor’s unique technology enables to reduce a large number

of external components for high frequency like coils, ceramic filters and

varicaps which were required for conventional tuner IC.

Small FM multiple tuner that can be installed also in PND etc. including

AVN can be composed.

WQFN56 7x7, 0.4P

Features

 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.

Functions

 FM tuner function

 Antenna dumping control function

 Local oscillation of PLL control type

 WIDE/NARROW/IF-AGC function

 DLL demodulator

 57kHz carrier recovery and re-clock regeneration

 BPSK decode / differential decode

 ID reset function

 I²C BUS control

 I²C reset function

 Standby function

* I²C Bus is a trademark of Philips Corporation.

ORDERING INFORMATION

See detailed ordering and shipping information on page 13 of this data sheet.

September 2014 - Rev. 2

Publication Order Number :

LV25500PQA/D

12 3 4 5 6 7...13

中文翻译

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