U4090B-NFNG3

U4090B-NFNG3 - Monolithic Integrated Feature Phone Circuit

Description

The µc controlled telephone circuit U4090B is a linear

integrated circuit for use in feature phones, answering

machines and fax machines. It contains the speech circuit,

tone ringer interface with dc/dc converter, sidetone

equivalent and ear protection rectifiers. The circuit is line

powered and contains all components necessary for

amplification of signals and adaptation to the line. 

An integrated voice switch with loudspeaker amplifier

allows loudhearing or handsfree operation. With an

anti-feedback function, acoustical feedback during

loudhearing can be reduced significantly. The generated

supply voltage is suitable for a wide range of peripheral

circuits.

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：2850151585 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!

MJD is a corporation which engaged in agency electronic components. MJD Through seventeen years unrimitting efforts,  aspire to provide our customers with world-leading products and service. Now already became a one of the most famous electronic components distributor in China.

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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 skype id mjdccm898 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 ！