Heroic HT97220
The HT97220(L) is a differential input Direct Drive line driver/headphone amplifier, which can also drive single-ended input signal. It is capable of being driven with 125mW into 32Ω with a 5V supply. The IC is offered with an externally set gain through external resistors (or an internally fixed 6dB gain which needs to be pre-booked.| Part No. | HT97220 |
|---|---|
| Datasheet | HT97220 Download |
| Manufacturer |  Heroic |
| Description | Headphone amplifier/line driver |
| Buy | Stock & Price |
FEATURES
●DESCRIPTION
●Direct Drive Outputs Eliminate DC-Blocking Capacitors, Save Space●Excellent Bass Fidelity
●Shutdown and Startup without any Click-Pop Noise
●Exceptional Low THD+N: 0.001% Minimum
●Absolutely Low Noise Performance VN: 7μV
●Differential or Single-Ended Input
●Wide 2.5V to 5.2V Operating Range
●Output Power: 125mW (fIN = 1kHz, VDD=5V, RL=32Ω, THD+N=1%);
●Pb Free Packages, QFN16L-PP 3mm*3mm, Extremely Simple BOM Needed
●
APPLICATIONS
●Headphones●Simple Multimedia Interfaces●Set-Top Boxes
●Blue-ray and DVD Players
●LCD Televisions●Prosumer Audio Devices The external gain setting nodes can also be used to configure filters for set-top box applications. The IC has exceptional THD+N over the full audio bandwidth. Two versions of the IC can be chosen with different turn-on times (tON). The versions for headphone applications feature a tON of 4.2ms while the version, intended for set-top-box applications, which needs to be pre-booked, feature a 130ms tON. An on-chip charge pump inverts the power-supply input, creating a negative rail.
