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STD EE447 Recorder
Mode: Editors' pick
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Update time：
2021-02-28 10:37:42
Creation time：
2019-02-06 14:23:16
Description
CSULB EE447 Project
Voice Recorder and playback system
Cameron Marsh
Eric Ko
David Maylahn
Design Drawing
schematic diagram
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1
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Mic Input/Preamp
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Input Filter
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ADC_test
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Counter (V1)
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SRAM
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Clock
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ADC_final
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AGC
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DAC_test
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Controller
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Counter (V.2)
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DAC_Final
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Output Amp/Speaker
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Output Filter
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PCB
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | BL-MP9767P-44DB | MIC1 | MIC-R9.7-2P-2.54PITCH | 1 |
| 2 | 10k | R1,R14,R20,R45,R47,R48,R55,R61,R23 | AXIAL-0.4 | 9 |
| 3 | L7805 | U1 | TO-220(TO-220-3) | 1 |
| 4 | 1u | C5,C6,C4 | RAD-0.2 | 3 |
| 5 | 1N4148W | D3,D4,D1,D2 | SOD-123 | 4 |
| 6 | 1u | C18,C19,C22,C24 | CAP-D3.0XF1.5 | 4 |
| 7 | 10u | C21 | CAP-D3.0XF1.5 | 1 |
| 8 | 0.22u | C20 | RAD-0.1 | 1 |
| 9 | 0.1u | C23 | RAD-0.1 | 1 |
| 10 | 2.2u | C32 | RAD-0.1 | 1 |
| 11 | 4.7m | C33 | RAD-0.1 | 1 |
| 12 | 10k | R41 | RES-ADJ_3386P | 1 |
| 13 | MMBFJ310LT1G | Q1 | SOT-23 | 1 |
| 14 | 470 | R39 | AXIAL-0.3 | 1 |
| 15 | 100k | R40,R37 | AXIAL-0.3 | 2 |
| 16 | 2.2M | R42 | AXIAL-0.3 | 1 |
| 17 | 10k | R36,R38,R44,R64 | AXIAL-0.3 | 4 |
| 18 | 560k | R43 | AXIAL-0.3 | 1 |
| 19 | UA741CP | U23,U3,U4,U5,U15,U16,U17 | DIP-8 | 7 |
| 20 | 1M | R7,R8,R15,R16,R21,R22,R2,R3,R46,R49,R56,R57,R62,R63 | AXIAL-0.4 | 14 |
| 21 | 390 | R9,R10,R11,R12,R17,R18,R50,R51,R52,R53,R58,R59 | AXIAL-0.4 | 12 |
| 22 | 5.6k | R13,R54 | AXIAL-0.4 | 2 |
| 23 | 15k | R19,R60 | AXIAL-0.4 | 2 |
| 24 | 10u | C7,C12,C15,C2,C28,C31 | RAD-0.2 | 6 |
| 25 | 0.1u | C8,C9,C10,C11,C13,C14,C3,C25,C26,C27,C29,C30 | RAD-0.2 | 12 |
| 26 | ADC0820CCWM/NOPB | U14,U6,U26 | SOIC-20_300MIL | 3 |
| 27 | NE555P | U13 | DIP-8 | 1 |
| 28 | 100 | R33,R6,R32 | RES-ADJ_3386P | 3 |
| 29 | 10n | C16 | RAD-0.2 | 1 |
| 30 | 47n | C17 | RAD-0.2 | 1 |
| 31 | 74LS193 | U39,U40,U41,U42,U43 | NONE | 5 |
| 32 | DS1250AB-100IND+ | U12 | DIP32 | 1 |
| 33 | NAND2EE | U30,U33,U34,U25 | NONE | 4 |
| 34 | 1k | R34,R35,R5 | AXIAL-0.4 | 3 |
| 35 | 74HC73EE | U31 | DIP14 | 1 |
| 36 | LED-5MM | LED9,LED10,LED1,LED2,LED3,LED4,LED5,LED6,LED7 | LED-5MM/2.54 | 9 |
| 37 | button6*6*8 | RECORD,REPLAY,RESET,REWIND,KEY1 | KEY-6.0*6.0-2 | 5 |
| 38 | DS1100LZ-20T+MOT | U36 | SOIC-8 | 1 |
| 39 | INVEE | U24,U35,U38 | NONE | 3 |
| 40 | NOR3EE | U27,U28 | NONE | 2 |
| 41 | 3.9k | R4 | AXIAL-0.4 | 1 |
| 42 | MAX5102BEUE+ | U2,U37 | TSSOP-16EP | 2 |
| 43 | 120uF | C1 | CAP-D3.0XF1.5 | 1 |
| 44 | 74163D | U7,U8,U9,U10,U11 | S016 | 5 |
| 45 | 220 | R24,R25,R26,R27,R28,R29,R30,R31 | AXIAL-0.4 | 8 |
| 46 | led-5 | LED8 | LED-5MM/2.54 | 1 |
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