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BA3311L Datasheet

  • BA3311L

  • Dual preamplifier with ALC

  • 4頁(yè)

  • ROHM

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Audio ICs
Dual preamplifier with ALC
BA3311L
The BA3311L is a dual preamplifier with ALC designed for use in stereo radio-cassette recorders. It comes in a compact
12-pin ZIP package and has two record / playback preamplifiers, and an ALC circuit. The preamplifiers are directly
coupled to the head and do not require coupling capacitors. This prevents tape head magnetization and 鈥漰op鈥?noise
generation.
An ALC circuit with large dynamic range can be constructed with addition of just an external detector and time constant
circuit.
FApplications
Stereo radio cassette players
FFeatures
1) The input block uses a bias circuit that does not re-
quire coupling capacitors.
2) ALC circuit requires addition of just an external de-
tector and time constant circuit.
FBlock
diagram
3) Wide operating power supply voltage range.
4) High gain.
5) Low noise.
189

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