Goodix offers the high-performance Class-D amplifier series, with the TFA9865 series standing out as the latest smart amplifier solution. This series sets a new benchmark for audio quality in mobile devices with a high 7 W peak output power and an ultra-low noise floor below 7 uV.
The TFA9865 series incorporates Goodix's proprietary first-generation CoolPWM technology, breaking away from traditional technology architectures with a pure digital path design and advanced energy efficiency management mechanisms, thereby delivering louder and clearer sound quality for mobile devices, and significantly extends device battery life. Goodix also collaborates with a renowned chip manufacturer to develop the first-of-its-kind and specially tuned 90 nm BCD process. Benefiting from advanced process and new digital architecture, the audio amplifier offers more flexibilities to customers’ applications, with dimensions of just 2.2 * 2.2 mm². Additionally, Goodix’s sophisticated SpeakerBoost(SPB) acoustic enhancement and protection algorithm helps to obtain the optimum performance for micro-speakers while simultaneously providing temperature and excursion protection.
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| Product Info | Features | TFA9865 | TFA9882 | TFA9896 | TFA9892 | TFA9874 | TFA9894 | TFA9876 | TFA9873 | TFA9875 |
|---|---|---|---|---|---|---|---|---|---|---|
| General | Embedded DSP | No | No | Yes | Yes | No | Yes | No | No | No |
| Package Size | 4.84 mm2 | 1.9 mm2 | 5.6 mm2 | 11.36 mm2 | 6.6 mm2 | 8.9 mm2 | 7.1 mm2 | 5.4 mm2 | 7.34 mm2 | |
| 2.2 * 2.2 * 0.4 | 1.27 * 1.49 * 0.4 | 2.72 * 2.06 * 0.3 | 3.63 * 3.13 * 0.3 | 2.62 * 2.51 * 0.4 | 3.55 * 2.51 * 0.4 | 2.8 * 2.52 * 0.4 | 2.44 * 2.2 * 0.4 | 2.74 * 2.68 * 0.3 | ||
| Package Type | WLCSP-36 | WLCSP-9 | WLCSP-30 | WLCSP-49 | WLCSP-36 | WLCSP-48 | WLSCP36 | WLCSP-30 | WLCSP-36 | |
| Customer Sample | Available | Available | Available | Available | Available | Available | Available | Available | Available | |
| Mass Production | Available | Available | Available | Available | Available | Available | Available | Available | Available | |
| Interfaces | Audio Input Interface | TDM-I2S | I2S | TDM-I2S | TDM-I2S or 1 * PDM | TDM-I2S | TDM-I2S | TDM-I2S | TDM-I2S | TDM-I2S |
| AEC Feedback | Yes | No | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| Performance | Boost Voltage | 12 V | No | 6.1 V | 12 V | 10 V | 10 V | 10 V | 8 V | 12 V |
| RMS Output Power (8Ω~1%THD) | 7 W | 1.45 W | 2.1 W | 6.6 W | 5.6 W | 5.6 W | 5.6 W | 3.5 W | 7.7 W | |
| RMS Output Power (6Ω~1%THD) | 7 W | - | - | 6.6 W | 6.1 W | 6.1 W | 6.1 W | 4.5 W | 7.8 W | |
| RMS Output Power (4 Ω~1%THD) | - | 2.7 W | 3.2 W | 6.7 W | 6.5 W | 6.5 W | 6.2 W | 4.7 W | - | |
| Speaker Channels | Mono | Mono | Mono | Mono | Mono | Mono | Mono | Mono | Mono | |
| Typical Speaker Load (Ω) | 4-8-32 | 4-8 | 4-8-32 | 4-8-32 | 4-8-32 | 4-8-32 | 4-8-32 | 4-8-32 | 6-8-38 | |
| PSRR (dB) | 80 | 85 | 90 | 75 | 80 | 80 | 80 | 85 | 80 | |
| DR (dB) | 124 | 103 | 100 | 100 | 110 | 110 | 120 | 109 | 116 | |
| MB-DRC | Yes (On Host) | None | (On Host) | Yes (3-band) | Yes (On Host) | Yes (3-band) | Yes (On Host) | Yes (On Host) | Yes (On Host) | |
| TDH+N | 0.05% | 0.02% | 0.03% | 0.04% | 0.04% | 0.04% | 0.05% | 0.05% | 0.05% | |
| Noise (uV) / Receiver Mode | 7 | 24 | 30 / 18 | 16 | 14 | 14 | 7 | 9 | 10 |
| Product Info | Features | SPB 5.5 | SPB 5.0 | SPB 4.0 | SPB 3.5 | SPB 3.0 | SPB 2.0 | SPB 1.5 | SPB 1.0 |
|---|---|---|---|---|---|---|---|---|---|
| Speaker Reliability | Adaptive Speaker Excursion Protection | v5 | v4 | v3 | v2 | v2 | v1 | v1 | v1 |
| Adaptive Speaker Temperature Protection | v3 | v2 | v2 (low pilot-tone) | v1 | v1 | v1 | v1 | v1 | |
| Speaker Diagnostics (Based on f0 and Rdc) | v3 | v2 | v2 | v1 | v1 | v1 | v1 | v1 | |
| Amplifier Clipping Prevention | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| Adaptive Speaker Resonance Compensation | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | |
| Audio Quality | Speaker Equalizer | 15 | 15 | 15 | 15 | 15 | 10 | 10 | 10 |
| Phase Correction | Yes | Yes | Yes | Yes | Yes | Yes | No | No | |
| Multi-band Compression and Noise Gating | v3 (6-band) | v3 (6-band) | v3 (6-band) | v3 (6-band) | v3 (6-band) | v2 (6-band) | v1 (3-band) | No | |
| Bass Enhancement | v3 | v3 | v3 (powerbass) | v3 (Virtual) | v2 | v1 | v1 (3-band) | No | |
| Channel Configurations | Stereo | Stereo | Stereo | Stereo | Stereo | Stereo | Mono | Mono | |
| Ultrasound Mixer (96khz with Audio Protection) | Yes | Yes | Yes | Yes | Yes | No | No | No | |
| Stereo Widening | Yes | Yes | Yes | Yes | No | No | No | No | |
| Distorsion Control | v2 | v2 | v1 | v1 | Yes | No | No | No | |
| Power Management | Peak Current Management | Yes | Yes | Yes | Yes | Yes | No | No | No |
| Battery Power Saver | Yes | Yes | Yes | Yes | Yes | No | No | No |
Innovative CoolPWM architecture with unparalleled efficiency, lower quiescent current, and noise reduction
With an extremely low noise floor, the series eliminates amplifier clipping and reduces speaker distortion, providing unmatched sound clarity
The new digital architecture and advanced battery management functions like low voltage supply, significantly extending device battery life
Prevents speaker damage with adaptive excursion control and real-time temperature protection
Sophisticated SpeakerBoost acoustic enhancement and protection algorithm to achieve the best performance for micro-speakers
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