This post explains for the semiconductor TA7666P.
The Part Number is TA7666P.
The function of this semiconductor is 5 Step Logarithmic Dual LED Driver.
Manufacturer: Toshiba
Preview images :
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Description:
Both of the TA7666P and TA7667P consist of two inverting amplifers, the comparators and a reference voltage netwok. Turn-on level intervals are 5dB, 5dB, 3dB, 3dB, in TA7666P, and are 2dB, 2dB, 2dB, 2dB in TA7667P. It is suitable for stereo radio cassette applications because of dual type. […]
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