CXA1878Q中文资料索尼数据手册PDF规格书

描述 Description

The CXA1878Q is a bipolar IC with a built-in Dolby B-C type noise reduction system (NR), Dolby S type select switch, recording/playback equalizer, electronic volume, and bias control circuit.

Use of this IC in combination with two CXA1417S/Q completes a Dolby B-C-S type NR stereo system.

特性 Features

• Dolby B-C type NR

• Built-in filter required for recording/playback equalizer amplifiers

• Recording mute function (requiring only an external time constant circuit to implement soft mute)

• Fade in/out DC controllable

• NORM/CrO2/METAL tape mode switching function

• NORM/HIGH tape speed switching function

• DC controllable for recording level calibration (approximately ±6dB variable)

• DC controllable for high frequency equalizer amplifier gain (approximately ±4dB variable)

• Playback deck A/B select switch

• Recording volume control

• Bias control circuit

• Meter circuit

Applications

Recording/playback equalizer amplifier for stereo analog cassette decks (Applicable to ALPS ELECTRIC CO., LTD. HADKH55 series heads)