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Aurora icepower booster

jpsamuelson·aurora-icepower-booster

Aurora icepower booster PCB layout, top view — open source board by jpsamuelson

About the Aurora icepower booster PCB

Aurora icepower booster is an open source PCB design by jpsamuelson, published on GitHub. It is a 2-layer board measuring 145.6 × 200 mm, with 265 components from 42 distinct parts.

Other key parts include the TEL5-2422, LM4562, ADP7118ARDZ-11 and ADP7182AUJZ-11. By type, the board carries 113 resistors, 81 capacitors, 25 diodes, 15 ICs, 15 connectors and 7 transistors.

It belongs with the audio designs in this gallery.

From the project

Balanced buffer / booster between aurora-freeDSP and ICEpower xxxASX2 amps.

6-Channel Balanced Audio Interface — Aurora FreeDSP → ICEpower Amplifier Modules

This board sits between an Aurora FreeDSP DSP processor and six ICEpower Class-D amplifier modules. It receives 6 balanced audio signals from the DSP, applies adjustable gain (0–11.3 dB), protects the signals, and outputs them as balanced XLR signals.

- 6 identical channels — balanced XLR input & output - LM4562 low-noise dual op-amps — THD+N 0.00003%, 2.7 nV/√Hz - 0–11.3 dB gain in 8 steps via 3-bit DIP switch per channel - 100 ms power-on muting — BSS138 MOSFET chain prevents pop noise - Remote enable via…

Aurora icepower booster, from the project README
From the project README

Main components on the Aurora icepower booster

TEL5-2422LM4562ADP7118ARDZ-11ADP7182AUJZ-11

Aurora icepower booster bill of materials (BOM)

265 components, 42 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
TEL5-2422
U1
12
LM4562
U2, U3, U4, U5, U6, U7, U8, U9 +4
1
ADP7118ARDZ-11
U14
1
ADP7182AUJZ-11
U15
7
BSS138
Q1, Q2, Q3, Q4, Q5, Q6, Q7
1
24V DC
J1
1
C5123132
REMOTE 3.5mm IN
J2
1
XLR_IN_1
J3
1
XLR_IN_2
J4
1
XLR_IN_3
J5
1
XLR_IN_4
J6
1
XLR_IN_5
J7
1
XLR_IN_6
J8
6
XLR3_OUT
J9, J10, J11, J12, J13, J14
1
C5123132
REMOTE 3.5mm OUT
J15
1
ALWAYS/REMOTE
SW1
1
Gain CH1
SW2
1
Gain CH2
SW3
1
Gain CH3
SW4
1
Gain CH4
SW5
Show 22 more
QtyPartRefs
1
Gain CH5
SW6
1
Gain CH6
SW7
1
SMBJ15CA
D1
24
PESD5V0S1BL
D2, D3, D4, D5, D6, D7, D8, D9 +16
2
BLM18PG221
FB1, FB2
43
100nF C0G
C1, C2, C3, C4, C5, C6, C7, C8 +35
2
100UF/25V
100uF/25V
C16, C17
2
100UF
100uF
C20, C21
8
10uF X5R
C24, C25, C74, C75, C76, C77, C78, C79
12
100pF C0G
C50, C51, C52, C53, C54, C55, C56, C57 +4
12
2.2uF C0G
C62, C63, C64, C65, C66, C67, C68, C69 +4
1
10U
10u
C80
1
22nF C0G
C81
2
10K
10k
R1, R106
36
10k 0.1%
R2, R3, R4, R5, R6, R7, R8, R9 +28
6
30K
30k
R27, R31, R35, R39, R43, R47
6
15K
15k
R28, R32, R36, R40, R44, R48
6
7.5K
7.5k
R29, R33, R37, R41, R45, R49
3
100K
100k
R56, R57, R107
24
47
R58, R59, R60, R61, R62, R63, R76, R77 +16
18
10k
R64, R65, R66, R67, R68, R69, R70, R71 +10
12
10
R82, R83, R84, R85, R86, R87, R88, R89 +4

Aurora icepower booster design files

The KiCad project lives in the jpsamuelson/aurora-icepower-booster repository on GitHub; these links point at the commit this page was built from.

Aurora icepower booster: common questions

How big is the Aurora icepower booster PCB?

The Aurora icepower booster measures 145.6 × 200 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Aurora icepower booster?

265 components, from 42 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the Aurora icepower booster design files?

From the jpsamuelson/aurora-icepower-booster repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.

Can I use the Aurora icepower booster design in my own project?

The repository has no license, so all rights stay with jpsamuelson. Use it as a reference, and ask the author before reusing the design.

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