Difference between revisions of "HiFiBerry Amp 2"
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== Configuration == | == Configuration == | ||
− | == GPIO Usage | + | == GPIO Usage == |
− | The following pins are reserved and can't be used for other purposes: | + | The following pins are reserved and can't be used for other purposes<ref>https://www.hifiberry.com/docs/hardware/gpio-usage-of-hifiberry-boards/</ref>: |
{| class="wikitable" | {| class="wikitable" |
Revision as of 03:38, 31 December 2020
HiFiBerry Amp 2 | |
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Modality | |
Part Type | |
Manufacturer | |
Product ID/Part Number | |
Product Page |
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The HiFiBerry Amp 2 is an integrated amplifier and sound card capable of playing audio at 24 bits/192kHz. The Amp 2 is a HAT peripheral that mounts on top of the Raspberry Pi, uses the I2C protocol, and powers the Pi through its 5V rail.
Configuration
GPIO Usage
The following pins are reserved and can't be used for other purposes[1]:
Board Pins | BCM # | Use |
---|---|---|
3, 5 | 2, 3 | I2C Configuration |
12, 35, 38, 40 | 18-21 | Sound interface |
7 | 4 | Mute -- pulling low mutes (so pull it up!) |
Specs
Recommended operating voltage | 12-20V | |
Absolute maximum operating voltage | 24V | |
Maximum output power | 60W | |
THD+N | <0.02% | typical, output power 0.1-10W |
SNR | 104db | typical |
Frequency response | 20-20000Hz | output filter characteristics depending on specific speaker parameters |
Typical output power per channel | 14W | Vsupply=12V, Rspk = 4Ohm, THD+N <0.1% |
18W | Vsupply=18V, Rspk = 4Ohm, THD+N <0.1% | |
20W | Vsupply=24V, Rspk = 4Ohm, THD+N <0.1% | |
8W | Vsupply=12V, Rspk = 8Ohm, THD+N <0.1% | |
17W | Vsupply=18V, Rspk = 8Ohm, THD+N <0.1% | |
28W | Vsupply=24V, Rspk = 8Ohm, THD+N <0.1% | |
Maximum output power per channel | 15W | Vsupply=12V, Rspk = 4Ohm, THD+N <10% |
30W | Vsupply=18V, Rspk = 4Ohm, THD+N <10% | |
44W | Vsupply=24V, Rspk = 4Ohm, THD+N <10% | |
10W | Vsupply=12V, Rspk = 8Ohm, THD+N <10% | |
20W | Vsupply=18V, Rspk = 8Ohm, THD+N <10% | |
38W | Vsupply=24V, Rspk = 8Ohm, THD+N <10% | |
Sample rates | 44.1-192kHz |