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LC551

Features: • adjustable gain to 48 dB• capable of driving low impedance receiver (110 )• low parts count, 3 small capacitors & 1 resistor• gain trim can be used as volume control for reduced noise• minimal start - up transient• frequency bandwidth of 18 kHzPi...

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SeekIC No. : 004391703 Detail

LC551: Features: • adjustable gain to 48 dB• capable of driving low impedance receiver (110 )• low parts count, 3 small capacitors & 1 resistor• gain trim can be used as volume ...

LC551 Data Sheet

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Part Number:
LC551
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• adjustable gain to 48 dB
• capable of driving low impedance receiver (110 )
• low parts count, 3 small capacitors & 1 resistor
• gain trim can be used as volume control for reduced noise
• minimal start - up transient
• frequency bandwidth of 18 kHz


Pinout

Connection Diagram




Specifications

Supply Voltage ........................................................5 V
Operating Temperature Range ............-10°C to 40°C
Storage Temperature Range -20...............°C to 70°C


Description

The LC551 is a 10 pin low voltage, class B amplifier which operates over a battery voltage range of 1.1 V DC to 3 V DC.

The LC551 consists of three gain blocks. The first block is an inverting amplifier with the gain set by two external resistors.This gain trim feature can be used as a volume control in hearing aid applications. The second block is an inverting unity gain amplifier which serves as a phase splitter. The outputs from the first and second blocks drive the differential inputs of the third block. The third block has a fixed AC gain of 28 dB when driving a receiver.

This amplifier has internal compensation eliminating the need for a capacitor across the receiver. Two ground pins are
available for "star " grounding to reduce any second harmonic distortion produced by ground line resistance.




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