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NJW1201A

New Japan Radio
Part Number NJW1201A
Manufacturer New Japan Radio
Description 2ch Electronic Volume
Published Mar 13, 2012
Detailed Description www.DataSheet.co.kr NJW1201A 2ch Electronic Volume with Dynamic Bass Boost !GENERAL DESCRIPTION The NJW1201A is a 2-cha...
Datasheet PDF File NJW1201A PDF File

NJW1201A
NJW1201A

Overview
www.
DataSheet.
co.
kr NJW1201A 2ch Electronic Volume with Dynamic Bass Boost !GENERAL DESCRIPTION The NJW1201A is a 2-channel electronic volume with Dynamic Bass Boost.
5+1diff-in 1-out selector.
It includes 5+1diff input selector, 1st-volume, 2nd-volume, 3 band Tone, Sound mode, Dynamic Bass Boost.
The NJW1201A performs low noise and low distortion characteristics with resistance ladder circuit.
2 All of functions are controlled by I C BUS interface.
!PACKAGE OUTLINE ! FEATURES " Operating Voltage 2 " I C BUS Control " Low output noise " Low THD " 5+1diff Input Selector " Input Gain " 1st-Volume " 2nd-Volume " 3 Band Tone " Sound mode " Sound Gain " Dynamic Bass Boost " Bi-CMOS Technology " Package Outline ! BLOCK DIAGRAM +7.
5 to +10V -110dBVtyp.
0.
01%typ.
NJW1201AFH2 0 to +30dB/2dBstep 0 to -62dB / 1dBstep, MUTE 0 to -28dB / 2dBstep, MUTE 0 to ±14dB/ 2dBstep (Treble,Middle), 0 to ±17.
5dB/ 2.
5dBstep (Bass) 3 modes (eala, ealaTreble, eala & ealaTreble) 2-level Gains 3-level Gains LQFP52-H2 INPUT3 Bch INPUT2 Bch INPUT1 Bch 4.
7k R12 C29 C32 C31 C30 C28 C27 C26 C25 C24 R11 C23 4.
7k C22 220n 4.
7u 4.
7u 4.
7u 4.
7n 4.
7n INPUT(Bch) 39 38 37 36 35 34 33 32 31 30 29 28 27 4.
7n 22n 47n Filter terminal for Sound Mode R10 50k 50k 50k TRE MID 0dB 4.
7u 40 41 BAS INPUT4 Bch 50k C33 + 26 25 24 23 C21 68n C20 1u R9 3k C18 4.
7u C17 4.
7u Filter terminal for Sound Mode AGC Smoothing Filter for Dynamic Bass Boost ExtSense terminal.
Possible to unconnect INPUT5 Bch C34 + 4.
7u 50k 50k 43 INPUT6 Bch C35 4.
7u VREF INPUT6 Diff INPUT6 Ach C36 + 4.
7u 2ndVolume (0 to -28dB,Mute 2dB step) + 1stVolume (0 to -62dB,Mute 1dB step) 25k 42 4.
7u C19 44 0 to +30dB 2dB step 45 50k 22 21 20 19 18 17 16 15 OUTPUT(Bch) V+ 22u Sound Mode & DynamicBassBoost C37 + 4.
7u I C 46 47 50k R8 C16 SCL R7 C38 + 4.
7u 2 SDA GND C15 4.
7u C14 4.
7u 48 50k 49 INPUT5 Ach C39 OUTPUT(Ach) + 4.
7u 50 51 0dB 25k TRE BAS MID 75k ...


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