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DAC Section

Assembly

An onboard digital-to-analog converter that accepts USB audio and feeds the analog volume control. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.

DAC Section parts and their functions

6 top-level parts · 7 parts in total · full bill of materials below
DAC Section parts diagram: 1 DAC chip, 2 USB interface, 3 clock oscillator, 4 I/V and filter stage, 5 bare PCB, 6 SMD passive (R/C/L). 7 parts in 6 top-level items.
DAC Section parts diagram. Numbers match the table below; each box is one top-level part or assembly with what it contains.
#PartQtyWhat it does
1 DAC Chip 1× Delta-sigma converter
2 USB Interface 1× USB Audio Class 2 bridge
3 Clock Oscillator 2× 44.1k and 48k families
4 I/V and Filter Stage 1× Current-to-voltage and filter
5 Bare PCB 1× Unpopulated printed circuit board: copper traces etched on an FR-4 glass-epoxy laminate that carry current between the components later soldered to it.
6 SMD Passive (R/C/L) 1× Surface-mount resistors, capacitors, and inductors, typically in 0402 to 1206 packages, that set voltages, filter noise, and time signals on a circuit board.

3D model

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Build & assembly graph

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Bill of materials for DAC Section

6 top-level lines · 6 rows shown · 7 parts total · indented to 3 levels
# Item / sub-assembly Part no. Qty/assy Ext. qty Parts Type
1 DAC Chip headphone-amplifier-dac-chip 1× 1 · part
2 USB Interface headphone-amplifier-usb-interface 1× 1 · part
3 Clock Oscillator headphone-amplifier-clock-oscillator 2× 2 · part
4 I/V and Filter Stage headphone-amplifier-iv-stage 1× 1 · part
5 Bare PCB pcb-bare 1× 1 · part
6 SMD Passive (R/C/L) smd-passives 1× 1 · part

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Where the DAC section is used

1 product across 1 domain contain it, directly or inside a sub-assembly

Used in 1 assembly

Headphone Amplifier

Sourcing: possible vendors

Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $0.50–$100. How estimates work
VendorHQSpecialtyMOQLead time
🇨🇳Foxconn
foxconn.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Flex (Singapore)
flex.com ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks
🇮🇳Dixon Technologies
dixoninfo.com ↗ 		Noida, IN Electronics contract mfg 1,000 pcs 6–10 wks
🇨🇳BYD Electronics
bydelectronic.com ↗ 		Shenzhen, CN Electronics contract mfg 1,000 pcs 6–10 wks
🇸🇬Venture Corp
venture.com.sg ↗ 		Singapore Electronics contract mfg 1,000 pcs 6–10 wks