InterM GEQ1231D & 2231D free download

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SERVICE MANUAL STEREO/DUAL 31-BAND GRAPHIC EQUALIZER GEQ-1231D/2231D www.inter-m.com MADE IN KOREA 2003.2 9017100300 MICOM DATA MM74HC4051 8-CHANNEL ANALOG MULTIPLEXER GENERAL DESCRIPTION The MM74HC4051, MM74HC4052 and MM74HC4053 Multiplexers are digitally controlled analog switches implemented in advanced silicon-gate CMOS technology. These switches have low "on" resistance and low "off" leakages. They are bidirectional switches, thus any analog input may be used as an output and vice-versa. Also These switches contain linearization circuity which lowers the on resistance and increases switch linearity. These devices allow control of up to ± 6V(peak) analog signals with digital control signals of 0 to 6V. Three supply pins are provided for VCC, ground, and VEE. This enables the connection of 0-5V logic signals when VCC = 5V and an analog input range of ± 5V when VEE = 5V. All three devices also have an inhibit control which when HIGH will disable all switches to their off state. All analog inputs and outputs and digital inputs are protected from electrostatic damage by diodes to VCC and ground. This device connects together the outputs of 8 switches, thus achieving an 8 channel multiplexer. The binary code placed on the A, B, and C select lines determines which one of the eight switches is "on", and connects one of the eight inputs to the common output. FEATURES · Wide analog input voltage range: ±6V · Low on resistance: 50 typ.(VCC-VEE = 4.5V), 30 typ.(VCC-VEE = 9V) · Logic level translation to enable 5V logic with ± 5V analog signals · Low quiescent current: 80µA maximum (74HC) · Matched Switch characteristic ORDERING CODE: Order Number MM74HC4051M MM74HC4051WM MM74HC4051SJ MM74HC4051MTC MM74HC4051N Package Number M16A M16B M16D MTC16 N16E Package Description 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012,0.150 Narrow 16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013,0.300 Wide 16-Lead Small Outline Package (SOP), ELAJ TYPE ll, 5.3mm Wide 16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153,4.4mm Wide 16-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-0010.300 Wide Devices also available in Tape and Reel. Specify by appending the suffix letter X to the ordering code. CONTENTS Micom Data Specifications Electrical Parts List Top and Bottom View of P.C. Board Wiring Diagram Block Diagram Schematic Diagram Exploded View of Cabinet & Chassis / Mechanical Parts List Ass'y Drawing 1 ~ 21 22 23 ~ 24 25 ~ 29 30 31~ 32 33 ~ 50 51 ~ 54 55 ~ 58 1 CONNECTION DIAGRAMS (Pin Assignments for DIP, SOIC, SOP and TSSO) PHYSICAL DIMENSIONS inches (millimeters) unless otherwise noted Top View TRUTH TABLES Inh H L L L L L L L L Input C B X X L L L L L H L H H L H L H H H H A X L H L H L H L H "ON" Channel None Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7 LOGIC DIAGRAMS 2 3 74LV164 8-bit SERIAL-IN / PARALLEL-OUT SHIFT REGISTER FEATURES ­ Wide operating voltage: 1.0 to 5.5V ­ Optimized for Low Voltage applications: 1.0 to 3.6V ­ Acc