Anterwell Technology Ltd.

          Anterwell Technology Ltd.

 

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Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
We have cooperate with Anterwell near 7 years. always very good quality good service. Original and very fast delivery. A very good partner.

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Sharon is a very good girl, we are very happy to cooperate with her. Competitive price and professional. Never have quality problem with them.

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We always buy XILINX parts from Anterwell. High quality with good price. Hope can have more business with you.

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Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

China Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard supplier
Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard supplier Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard supplier

Large Image :  Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

Product Details:

Place of Origin: Philippines
Brand Name: ATMEL
Certification: Original Factory Pack
Model Number: U209B

Payment & Shipping Terms:

Minimum Order Quantity: 20
Price: Negotiate
Packaging Details: please contact me for details
Delivery Time: 1
Payment Terms: T/T, Western Union,Paypal
Supply Ability: 20000
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Detailed Product Description
Features: ·With TO-220AB Package Features2: ·Glass Passivated, Sensitive Gate Triacs In A Plastic Envelope
Features3: Intended For Use In General Purpose Bidirectional Switching And Phase Control Applications, Where High Sensitivity Is Required In All Four Quadrants. Features4: Repetitive Peak Off-state Voltage 600 V
Features5: Repetitive Peak Off-state Voltage 600 V

Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

 

 

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.

 

Features

 DC characteristic adjustable 

Transmit and receive gain adjustable 

Symmetrical input of microphone amplifier 

Anti-clipping in transmit direction 

Automatic line loss compensation 

Symmetrical output of earpiece amplifier 

Built-in ear protection 

DTMF and MUTE input 

Adjustable sidetone suppression independent of sending and receiving amplification 

Speech circuit with two sidetone networks 

Built-in line detection circuit  Integrated amplifier for loudhearing operation

 Anti-clipping for loudspeaker amplifier  Improved acoustical feedback suppression 

Power down

 

Benefits

 Savings of one piezo electric transducer

 Complete system integration of analog signal processing on one chip 

Very few external components

 

Applications

Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

DC line interface and supply voltage generation

The DC line interface consists of an electronic inductance and a dual port output stage, which charges the capacitors at VMPS and VB. The value of the equivalent inductance is given by L = RSENSE  CIND  (RDC  R30) / (RDC + R30)In order to improve the supply during worst case operating conditions two PNP current sources - IBOPT and  IMPSOPT - hand an extra amount of current to the supply voltages, when the NPNs in parallel are unable to conduct current. 

 

A flowchart for the control of the current sources (figure 5) shows, how a priority for supply VMPS is achieved.

 

Power Circuit Board Chips U209B Monolithic Integrated Control Circuitboard

Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

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