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BH7779K

Features: · An audio signal prosessing system IC that (Hi-Fi and normal audio) includes a peak-noise reduction (PNR) prosessor, an FM modulator / demodulator circuit, an input output switcher, an automatic FM detector circuit, an FM band-pass filter, a normalaudio circuit and a regulator circuit.·...

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SeekIC No. : 004300406 Detail

BH7779K: Features: · An audio signal prosessing system IC that (Hi-Fi and normal audio) includes a peak-noise reduction (PNR) prosessor, an FM modulator / demodulator circuit, an input output switcher, an au...

BH7779K Data Sheet

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Part Number:
BH7779K
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/24

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Product Details

Description



Features:

· An audio signal prosessing system IC that (Hi-Fi and normal audio) includes a peak-noise reduction (PNR) prosessor, an FM modulator / demodulator circuit, an input output switcher, an automatic FM detector circuit, an FM band-pass filter, a normalaudio circuit and a regulator circuit.
· Operates off dual ± power supply which allows a large reduction in the number of coupling capacitors required. A built-in regulator makes it easy to construct a power supply system.
· A built-in two-line serial control decoder circuit allows serial control of the internal mode settings.
· Four-input switcher (turner, BS, and line 1 and 2). The output switcher switches between STEREO / LEFT / RIGHT and Hi-Fi / MIX / NORMAL, and a BS monitor function is provided.
· The PNR processor and FM modulation / demodulation circuit povide reverse characteristics at recording and playback. Also, carrier frequency adjustment and FM de-emphasis / playback level adjustment have been combined.
· Built-in FM band-pass filter connects directly to the playback amplifier and excels at attenuation of the other channel. The FM recording output circuit has a high-performance high-frequency cutoff filter that produces a sine wave output.
· Switching noise is reduced by a slope-control type differential compensation circuit.
· Built-in envelope detector circuit and noise-detecting automatic FM detector circuit.
· Built-in normal-audio signal processing circuit that allows SP / LP / EP equalizer switching. Control terminal provided for use with the BA7755AF higi-voltage head switcher.


Application

·VHS Video cassette recorders


Specifications

Parameter Symbol Limits Unit
Applied voltage VCC 23, 55pin````````6.0 V
VEE 59 pin``````` 6.0 V
VIN 6, 8, 9 pin```````6.5 V
VIN Other than the pins above: 6.0V V
Power dissipation Pd 800* mW
Operating temperature Topr 10 ~ + 70
Storage temperature Tstg 55 ~ + 125
* When IC is stand alone, reduced by 8.0mW for each increase in Ta of 1 over 25. When mounted on a 90mm * 50mm, t = 1.6mm glass epoxy board, Pd = 1.3W (reduced by 13.0mW for each increase in Ta of 1 over 25).


Description

The BH7779K is an audio signal processing system IC that includes a peak-noise reduction processor, an FM modulator / demodulator circuit, an input / output switcher, an automatic FM detector circuit, an FM band-pass filter, a normal- audio circuit and a regulator circuit.




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