製品概要
概要
The FDA802AB is a dual bridge class D amplifier, designed in the most advanced BCD technology specially intended for car radio applications.
The FDA802AB integrates a high performance D/A converter together with powerful MOSFET outputs in class D, to get an outstanding efficiency compared with the standard class AB.
The integrated D/A converter allows to reach outstanding performances (115 dB S/N ratio with 110 dB of dynamic range).
Thanks to the high-voltage MOSFET output stages it can operate both under standard car battery (6 -18 V) and under boosted power supply (up to 50 V) to reach the highest possible power with integrated solution.
The feedback loop includes the output L-C low-pass filter, allowing superior frequency response linearity and lower distortion independently from the inductor and capacitor quality.
FDA802AB is fully configurable through I2C bus interface and integrates a complete diagnostics array specially intended for automotive applications.
Thanks to the solutions implemented to solve the EMI problems, the device is intended to be used in the standard single DIN car-radio box together with the tuner.
Moreover FDA802AB is able to work with power supply as low as 5.5 V, thus supporting the most recent low voltage ('start-stop') car-makers specification.
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特徴
- AEC-Q100 qualified
- Integrated 110 dB D/A conversion
- I2S and TDM digital input (3.3/1.8 V)
- Input sampling frequency: 44.1 kHz, 48 kHz, 96 kHz, 192 kHz
- Full I2C bus driving (3.3/1.8 V) with 8 different I2C bus addresses
- EMI control for FM/AM compatibility
- EMI compliance evaluated following normative CISPR25 (class V)
- Low radiation function (LRF)
- Very low quiescent current
- Output low-pass filter included in the feedback allowing outstanding audio performances
- Wide operating supply range: target 5.5 V-50 V
- Supply voltage monitoring on I2C
- MOSFET power outputs allowing high output power capability under step-up voltage:
- 2x120 W /4 Ω at 35 V, 1 kHz THD = 1%(2x150 W /4 Ω at 35 V, 1 kHz THD = 10%)
- 2x140 W /8 Ω at 50 V, 1 kHz THD = 1%(2x180 W /8 Ω at 50 V, 1 kHz THD = 10%)
- 2x270 W /8 Ω at 50 V max output power
- Operation under standard car battery with high output power:
- 2x22 W /4 Ω at 14 V, 1 kHz THD = 1%(2x28 W /4 Ω at 14 V, 1 kHz THD = 10%)
- 2x37 W /2 Ω at 14 V, 1 kHz THD = 1%(2x46 W /2 Ω at 14 V, 1 kHz THD = 10%)
- Possibility to drive 2 Ω loads:
- up to 18 V in normal mode
- up to 35 V in parallel mode
- Independent channel operation
- I2C bus diagnostics:
- Short to VCC/GND diagnostic (including soft shorts up to 1 kΩ)
- DC load diagnostic
- AC load diagnostic (working both with internally generated and externally generated tone)
- Digital impedance-meter (DIM)
- Integrated fault protection
- Input and output offset detector
- Clipping detector
- Legacy mode ('no I2C' mode)
- Short circuit and ESD integrated protections
- Package: LQFP64 exposed pad up
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STMicroelectronics - FDA802AB
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品質 & 信頼性
| 製品型番 | マーケティング･ステータス | パッケージ | グレード | RoHSコンプライアンスグレード | 材料宣誓書** |
|---|---|---|---|---|---|
| FDA802AB-VYT | 量産中 | LQFP | オートモーティブ | Ecopack2 | |
| FDA802AB-VYY | 量産中 | LQFP | オートモーティブ | Ecopack2 |
(**) st.comで提供している材料宣誓書は、パッケージ･ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください
サンプル & 購入
| 製品型番 | 製品ステータス | Budgetary Price (US$)*/Qty | STから購入 | Order from distributors | パッケージ | 梱包タイプ | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 最小 | 最大 | |||||||||||||
| FDA802AB-VYY | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | |||||||||||
| FDA802AB-VYT | | | distributors 販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください | |||||||||||
FDA802AB-VYY 量産中
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
FDA802AB-VYT 量産中
販売代理店に在庫がない場合は、STのセールス･オフィスまでお問い合わせください
（*）概算用の参考価格（US$）です。現地通貨でのお見積りについては、STのセールス･オフィスまたは販売代理店までお問い合わせください。