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BA1701 Datasheet

Part Number BA1701
Manufacturers Rohm
Logo Rohm
Description VSC system processor IC
Datasheet BA1701 DatasheetBA1701 Datasheet (PDF)

Audio ICs VSC∗ system processor IC BA1701 The BA1701 is a monolithic audio-compression system controller IC that uses VSC∗. When used in combination with an analog delay circuit and low-pass filter, it can replay recorded audio at 1 to 2.5 times the recording speed, without altering the pitch. FApplications Audio compression systems for tape-based answering machines and learning aids FFeatures 1) Wide operating voltage range (4.5V to 14V). 2) Built-in two-phase sweep oscillator that can direc.

  BA1701   BA1701






VSC system processor IC

Audio ICs VSC∗ system processor IC BA1701 The BA1701 is a monolithic audio-compression system controller IC that uses VSC∗. When used in combination with an analog delay circuit and low-pass filter, it can replay recorded audio at 1 to 2.5 times the recording speed, without altering the pitch. FApplications Audio compression systems for tape-based answering machines and learning aids FFeatures 1) Wide operating voltage range (4.5V to 14V). 2) Built-in two-phase sweep oscillator that can directly drive BBD. 3) Built-in motor controller is synchronized with the audio compression ratio. 4) Built-in voltage regulator. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) ∗ VSC is a trademark of The Variable Speech Control Company. This product is manufactured under licence from VSC Ltd. for use in VSC systems. 861 Audio ICs FBlock diagram BA1701 FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 6V, f = 1kHz, and VIN = 1.5VP-P) 862 Audio ICs FMeasurement circuit BA1701 863 Audio ICs FApplication example BA1701 864 Audio ICs FCircuit operation (1) System construction The BA1701 is a monolithic audio-compression system controller IC that uses VSC.When used in combination with an analog delay circuit, low-pass filter, and tape speed controller, it can replay recorded audio at 1 to 2.5 times the recording speed, without altering the pitch (see BA1701 Fig. 3). The BA1701 has a built-in motor driver control circuit t.


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