Features
FM-Part
■ RF AGC generation by RF and IF detection
■ I/Q mixer for 1st FM IF 10.7MHz with image
rejection
■ Mixer for 2nd IF 450kHz
■ 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
■ Dedicated RDS-mute
■ 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
■ Adjacent channel mute
■ Fully electronic alignment
■ All functions I2C-Bus controlled
Description
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.
由于客户采购批量与样品的价格不同，网上无法统一注明，请您把采购型号通过邮件或客服QQ：401799895发给我们，也可以拨打明佳达国内销售部电话：0755-83957301，由客服人员为您报价；有时元件厂商价格稍许变动，本公司未能及时调整，如您觉得售价稍高，请与我们说明并适当议价，感谢支持!
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PAYMENTS:
We support the following payment methods:
1. Paypal
2. Western Union
3. Bank Wire (TT)
4. MoneyGram
Shipping:
1. MJD needs about 3 BUSINESS DAY to handle the order after received payment. after receiving your payment. Otherwise, we will state it in the invoice in advance.
2. MJD can Ship via your shipping account (DHL / FEDEX / UPS / TNT or others) as your instruction. Or Ship via our shipping account (We have a very good relationship with DHL and FEDEX with very special freight).
3. Regarding the declared value on the package for customs clearance, we are pleased to follow
your wishes, just feel free to inform us when ordering.
4. Any import fees or charges are the buyer's responsibility.
REFUNDS & RETURN:
We offer a warranty on all items that we sold. Item will be tested before ship,it will be in good condition,if there are some problems with the item,feel free to contact us.
Please Email us to notify a defective item. Unless otherwise specified, this item comes with 30 days warranty from the shipment date.
You must contact us before returning any product. All returns must be made within 30 days from this shipment date.Return must be in new condition(the SAME CONDITION as it was sent to you)
Because of wholesale price is different from sample price, our website can not state. Please send your required part number via email Sales@hkmjd.com or hotmail: mingjiada8@hotmail.com to us. As well as welcome you call us : 0755-83957301 We will send offer for you; Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support !
| 型号 | 品牌 | 批号 | 封装 | 数量 | 备注 | 资料 |
| TDA8359J | NXP | 13+RoHs | ZIP | 550250 | 100% 全新原装 (New and original) |
|
| TDA4863AJ | NXP | 13+RoHs | ZIP7 | 68000 | 100% 全新原装（Brand new) |
|
| TDA1519 | NXP | 13+ | ZIP-9 | 85780 | 原装进口现货Original |
|
| TDA1519C | NXP | 13+ | ZIP-9 | 6500 | 原装进口现货Original |
|
| TDA18250HN | NXP | 16+ | QFN | 85780 | 100%全新原装 New in stock |
|
| TDA18273HN | NXP | 14+RoHS | QFN | 7470 | 专业分销原装NXP Original |
|
| TDA19989AET | NXP | 13+ | BGA | 7740 | 100%全新原装 New in stock |
|
| TDA3683 | NXP | 13+ | ZIP | 4580 | 专业分销原装NXP Original |
|
