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NJM2777V Datasheet(PDF) 1 Page - New Japan Radio |
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NJM2777V Datasheet(HTML) 1 Page - New Japan Radio |
1 / 15 page NJM2777 – 1 – Headphone Amplifier with Electronic Volume I I I I GENERAL DESCRIPTION NJM2777 is a headphone amplifier with electronic volume. It includes widely gain adjustable volume, +20 to –80 dB, and mute function. These are controlled by DC voltage. The NJM2777 is suitable for headphone output on TV set. I I I I FEATURES G Operating Voltage 8 to 10 V G Electronic Volume +20dB to -80dB G Mute Function G Bipolar G Package Outline DIP14, DMP14, SSOP14 I I I I BLOCK DIAGRAM I I I I PIN FUNCTION I I I I PACKAGE OUTLINE VOL IN b IN a VOL Vref V+ GND OUTa OUTb CNTb CNTa Mute Bias Mute CAPa CAPb 1 7 8 14 No. SYMBOL FUNCTION No. SYMBOL FUNCTION 1 V+ Power Supply 8 N.C. No connecting 2 OUTb Bch Output 9 Vref Reference voltage stabilized capacitor connect terminal 3 CNTb Bch Volume control voltage input 10 INa Ach Input 4 CAPb Bch Volume control click noise absorbing capacitor connect terminal 11 CAPa Ach Volume control click noise absorbing capacitor connect terminal 5 INb Bch Input 12 CNTa Ach Volume control voltage input 6 Mute Mute control 13 OUTa Ach Output 7 N.C. No connecting 14 GND Ground NJM2777D NJM2777M NJM2777V |
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