USB-Headphone-Amplifier
77volatile77
Components (39)
| Reference | Value | Description |
|---|---|---|
| U1 | PCM2906C | Stereo Audio Codec with USB interface, Analog Input/Output, and S/PDIF, SSOP-28 |
| U2-U9,U12 | NE5532 | Dual Low-Noise Operational Amplifiers, DIP-8/SOIC-8 |
| U10 | TLV70237_SOT23-5 | 300mA Low Dropout Voltage Regulator, Fixed Output 3.7V, SOT-23-5 |
| U11 | TLV61046ADB | 28-V Output Voltage Boost Converter with Power Diode and Isolation Switch, SOT-23-6 |
| U13 | LM2941LD_NOPB | |
| C1,C8,C11-C13,C15,C19,C20,C26 | 10u | Polarized capacitor, US symbol,Unpolarized capacitor |
| C2 | 2n2 | Unpolarized capacitor, small symbol |
| C3-C7,C24,C38 | 1u | Unpolarized capacitor,Unpolarized capacitor, small symbol |
| C9,C10 | 20p | Unpolarized capacitor |
| C14,C16 | 7n5 | Unpolarized capacitor |
| C17,C23 | 15n | Unpolarized capacitor |
| C18,C25 | 30p | Unpolarized capacitor |
| C21,C28-C36,C39 | 100n | Unpolarized capacitor |
| C22 | 4u7 | Unpolarized capacitor, small symbol |
| C27,C41,C42 | 100u | Polarized capacitor, US symbol |
| C37 | 22u | Polarized capacitor, US symbol |
| C40 | 10n | Unpolarized capacitor |
| D1,D2 | ESD321 | |
| D3,D4 | ESD401DPYR | |
| FB1 | BLM18PG221SN1D | Ferrite bead |
| J1 | AudioPlug3 | Audio Jack, 3 Poles (Stereo / TRS) |
| J2 | USB_B | USB Type B connector |
| L1 | 10uH | Inductor |
| R1,R5,R6 | 1k5 | Resistor, US symbol,Resistor, small US symbol |
| R2 | DNP | Resistor, small US symbol |
| R3,R4 | 22R | Resistor, US symbol |
| R7 | 1M | Resistor, US symbol |
| R8,R9,R13-R16,R23,R24 | 1R | Resistor, US symbol |
| R10,R20 | 1k6 | Resistor, US symbol |
| R11,R12,R18,R19 | 750 | Resistor, US symbol |
| R17,R22,R25,R26,R30,R31,R36,R37,R40,R41 | 20k | Resistor, US symbol |
| R21,R28 | 5k1 | Resistor, US symbol |
| R27 | 1M47 | Resistor, US symbol |
| R29 | 71k5 | Resistor, US symbol |
| R34 | 10k7 | Resistor, US symbol |
| R35 | 1k | Resistor, US symbol |
| RV2 | R_Potentiometer_Dual | Dual potentiometer |
| TP1,TP2,TP4-TP6 | TestPoint | test point |
| Y1 | 12MHz | Four pin crystal, GND on pins 2 and 4 |