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NJU7306L
NJU7306 11-BAND EVR FOR GRAPHIC EQUALIZER ! GENERAL DESCRIPTION ! PACKAGE OUTLINE The NJU7306 is a electrical variable resistor(EVR) incorporated 11-band each for left and right channels, especially apply to the stereo type graphic equalizer. It consists of input controller, channel / band / level selector, 22 latches and resistor network blocks of 11 bands each for left and right channels. The boost and cut value for each band of each channel can be set independently to each other by the channel / band / level selector controlled by external controller. The maximum boost and cut range is ±12dB and the boost and cut value is adjusted by ±2dB step. ! FEATURES 11 Bands Each for Left and Right Channels Stereo Application Graphic Equalizer Each Channel Independent operation Maximum Boost and Cut ±12dB Boost and Cut Step ±2dB 10bit Serial Data for the Equalizing Flat Level Setting Function Operating voltage 15V ~ 30V CMOS Technology Package Outline SDIP42 TEST1 TEST2 Ver.2007-01-26 VDD VSS VEE VCC fR2 fR3 fR4 fR5 fR6 fR7 fR8 fR9 fR10 fR11 RESISTOR LATCH NETWORK & Analog SW R1~R11 L1~L11 7bit GAIN SELECT DECODER 4bit TEST CIRCUIT CSb L/R & BAND SELECT DECODER CHIP SELECT CLK 6bit DI fR1 TIMING GENERATOR 10BIT SHIFT REGISTER ! BLOCK DIAGRAM IN2R IN1R RESISTOR NETWORK LATCH & Analog SW # # # # # # # # # fL1 IN2L IN1L fL2 fL3 fL4 fL5 fL6 fL7 fL8 fL9 fL10 fL11 -1-
JRC
日本無線株式会社
日本
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