Difference between revisions of "HiFiBerry Amp 2"
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| − | The HiFiBerry Amp 2 is an integrated amplifier and sound card capable of playing audio at | + | 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 [[Uses Protocol::I2C]] protocol, and powers the Pi through its 5V rail. |
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| + | == Configuration == | ||
| + | |||
| + | == GPIO Usage<ref>https://www.hifiberry.com/docs/hardware/gpio-usage-of-hifiberry-boards/</ref> == | ||
| + | |||
| + | The following pins are reserved and can't be used for other purposes: | ||
| + | |||
| + | {| class="wikitable" | ||
| + | ! 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 == | == Specs == | ||
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[1]
The following pins are reserved and can't be used for other purposes:
| 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 |