Audio ICs
Double cassette tape recorder system preamplifier
BA3426AS
The BA3426AS is a record / playback system preampl...
Audio ICs
Double cassette tape recorder system preamplifier
BA3426AS
The BA3426AS is a record / playback system preamplifier for radio cassette decks. It also has a CD input. It has three control switches for function and tape mode switching and mic on / off. It requires far fewer external components than its predecessors which means simplified assembly and overall savings.
FApplications Dual-cassette radio cassette players. FFeatures 1) Built-in switch for recording / playback equalize. 2) Motor control output provided. 3) CD input.
4) Smoothing capacitors to suppress switching noise are not required. 5) Built-in bias oscillator
transistor.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
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Audio ICs
FBlock diagram
BA3426AS
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Audio ICs
FPin descriptions
BA3426AS
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Audio ICs
BA3426AS
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 5.5V, f = 1kHz, Rg = 680Ω, Tape input = *66dBm, Mic. input = *50dBm, and Radio input = *23dBm, and CD input = *12dBm)
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BA3426AS
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BA3426AS
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FMeasurement circuit
BA3426AS
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Audio ICs
BA3426AS
FCircuit operation (1) Control pins The control pin inputs and the corresponding states of the various inputs and outputs are summarized in the input/output pin status table that follows. Control pin inputs and corresponding input / output pin states
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Audio ICs
FApplication example 1
BA3426AS
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Audio ICs
FApplication exampl...