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MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT

Good quality Programmable IC Chips for sales
Good quality Programmable IC Chips for sales
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MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT

China MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT supplier
MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT supplier MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT supplier

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Product Details:

Place of Origin: original factory
Brand Name: Anterwell
Certification: new & original
Model Number: MC34118L

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiate
Packaging Details: Please contact me for details
Delivery Time: 1 day
Payment Terms: T/T, Western Union, Paypal
Supply Ability: 8600pcs
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Detailed Product Description
Supply Voltage: -1~7 V Storage Temperature: -65~+150 °С
Ambient Operating Temperature: -20~+60 °С Voltage At Pin 3: -1~VCC+1 V
Voltage At Pin 12 ( Mute): -1~VCC +1 V Voltage At Pin 13 ( VLC): -1~VCC+0.5 V

 

MC34118 LINEAR INTEGRATED CIRCUIT

VOICE SWITCHED SPEAKER-PHONE CIRCUIT

 

DESCRIPTION

As a voice switched speaker-phone integrated circuit, the UTC MC34118 includes the necessary amplifiers, attenuators, level detectors and control algorithm.

To form the UTC MC34118’s internal circuit, there is an internal microphone amplifier with adjustable gain and mute control, internal transmit and Receive attenuators (operate in a complementary manner), level detectors at both input and output of both attenuators, and background noise monitors for both the transmit and receive channels.

The dial tone can be pretended from being attenuated by the receive background noise monitor circuit by a dial tone detector. There are also two line driver amplifiers which can be used to form a hybrid network in conjunction with an external coupling transformer. A high-pass filter can be used for other filtering functions, and especially to filter out 60Hz noise in the receive channel.

The UTC MC34118 which requiring typically 5mA may be operated from a power supply, or it can be powered from the telephone line.

 

FEATURES

* Attenuator gain range: 52dB (between Transmit and Receive)

* For line-powered applications : 3~6.5V low voltage operation

* For improved sensitivity :4-point signal sensing

* For Transmit and Receive paths: background noise monitors

* External resistors set microphone amplifier gain

* Mute function included

* Chip disable: active or standby operation

* During dial tone presence: dial tone detector to inhibit receive idle mode 

 

ORDERING INFORMATION

Ordering Number Package Packing
Normal Lead Free Plating Halogen Free
MC34118-D28-T MC34118L-D28-T MC34118G-D28-T DIP-28 Tube
MC34118-E28-T MC34118L-E28-T MC34118G-E28-T SDIP-28 Tube
MC34118-S28-T MC34118L-S28-T MC34118G-S28-T SOP-28 Tube
MC34118-S28-R MC34118L-S28-R MC34118G-S28-R SOP-28 Tape Reel

 

MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT

 

ABSOLUTE MAXIMUM RATING (Ta=25°С,Voltages referred to pin 22)

PARAMETER SYMBOL RATINGS UNIT
Supply Voltage VCC -1~7 V
Voltage at Pin 3 V3 -1~VCC+1 V
Voltage at Pin 12 ( mute) V12 -1~VCC +1 V
Voltage at Pin 13 ( VLC) V13 -1~VCC+0.5 V
Voltage at Pin 9, Pin 21, and Pin 2 V9, 21, 2 -0.5~ VCC+0.5 V
Storage Temperature TSTR -65~+150 °С

Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.

          Absolute maximum ratings are stress ratings only and functional device operation is not implied.

 

BLOCK DIAGRAM

MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT

 

TYPICAL APPLICATION CIRCUIT

MC34118L popular integrated circuits Integrated Circuit Chip VOICE SWITCHED SPEAKER-PHONE CIRCUIT

 

 

 

 

Contact Details
Anterwell Technology Ltd.

Contact Person: Miss. Sharon Yang

Tel: 86-755-61169882

Fax: 86-755-613169859

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