TDA7540B Am/FM Tuner with Stereodecoder and Iss
The TDA7540 is a high performance tuner circuit for AM/FM car radio. It contains mixer, IF amplifier, demodulator for AM and FM, stereodecoder, quality detection, ISS filter and PLL synthesizer with IF counter on a single chip.
Use of BICMOS technology allows the implementation of several tuning functions and a minimum of external components.
技术特性
- FM-Part
- RF AGC generation by RF and IF detection
- I/Q mixer for 1st FM IF 10.7MHz with image rejection
- Internal 450KHz bandpass filter with bandwidth control by ISS
- Fully integrated FM-demodulator with spike cancellation
- AM-Part
- Wide and narrow AGC generation
- Mixer for 1st IF 10.7MHz, AM upconversion
- Mixer for 2nd IF 450kHz, AM downconversion
- Integrated AM-demodulator
- AM IF- and audio noise blanking
- Stereodecoder
- PLL with adjustment free, fully integrated VCO
- Automatic pilot dependent MONO/STEREO switching
- Programmable ROLL-OFF compensation
- High cut and stereo blend-characteristics programmable
- Internal noise blanker with several threshold controls
- Additional Features
- VCO for world tuning range
- High performance fast PLL for RDS-System
- IF counter for FM and AM with search stop signal
- Quality detector for level, deviation, adjacent channel and multipath
- ISS (Intelligent Selectivity System) for cancellation of adjacent channel and noise influences
- Fully electronic alignment
- All functions I²C-Bus controlled
|
功能框图
 |
TDA7540B 订购信息
| 订购型号 |
产品状态 |
美金价格 |
数量 |
封装 |
包装形式 |
温度范围 |
材料声明 |
| TDA7540B |
NRND |
|
1000 |
LQFP 80 14x14x1.4 |
Tray |
|
TDA7540B |
DATASHEET
| 下载 |
描述 |
版本 |
大小 |
| TDA7540B |
AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS) |
1 |
1215KB |
