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TFA9882

3.4 W I2S輸入單聲道D類音頻放大器; ? 9焊球小型WLCSP封裝：1.27 * 1.49 * 0.6 mm\n? 寬電源電壓范圍(2.5 V至5.5 V范圍內(nèi)都可正常工作)\n? 高效率(90%，4 ? / 20 μH負(fù)載)和低功耗\n? 靜態(tài)功率：\n-6.5 mW (VDDD = 1.8 V，VDDP = 3.6 V，4 ? / 20 μH 負(fù)載，fs = 32 kHz)\n-7.65 mW (VDDD = 1.8 V，VDDP = 3.6 V，4 ? / 20 μH 負(fù)載，fs = 48 kHz)\n? 輸出功率：\n-3.6 V電源，4 Ω負(fù)載時輸出功率為1.4 W (THD = 1%)\n-5.0 V電源，4 Ω負(fù)載時輸出功率為2.7 W (THD = 1%)\n-5.0 V電源，4 Ω負(fù)載時輸出功率為3.4 W (THD = 10%)\n? 輸出噪聲電壓：24 μV（A加權(quán)）\n? 信噪比：103 dB (VDDP = 5 V，A加權(quán))\n? 可完全防止負(fù)載兩端短路以及與電源線路的短接\n? 可避免漏音的電流限制\n? 具有熱保護(hù)功能\n? 欠壓和過壓保護(hù)\n? 可實現(xiàn)直流阻斷的高通濾波器\n? 用于音頻和控制設(shè)置的簡易接口\n? 左/右選擇和單聲道混音\n? 三個增益設(shè)置：-3 dB、0 dB和+3 dB\n? 可減少EMI的輸出斜率設(shè)置\n? 可實現(xiàn)平穩(wěn)削波的削波控制\n? 靜音模式\n? 低RF敏感度\n? 對時鐘抖動不敏感的輸入接口\n? 所有模式轉(zhuǎn)換期間無爆音\n? 啟動時間短：4 ms\n? 關(guān)斷時間短：5 μs\n? 1.8 V / 3.3 V容壓數(shù)字輸入\n? 只需兩個外部組件\n? 采用9焊球晶圓級芯片尺寸封裝 (WLCSP)，間距為400 μm\n;

TFA9882是單聲道、無濾波器的D類音頻放大器。該放大器通過I2S數(shù)字接口接收音頻和控制設(shè)置，當(dāng)位時鐘輸入(BCK)檢測到時鐘信號時，觸發(fā)掉電模式到工作模式的轉(zhuǎn)換。兩個放大器的組合可構(gòu)建立體聲應(yīng)用。\n\n 在立體聲應(yīng)用中，通過將字選擇信號分別連接到針腳WSL或針腳WSR來選擇左或右I2S音頻流；或通過將字選擇信號同時連接到WSL和WSR，實現(xiàn)單聲道混合；關(guān)閉字選擇信號即選擇靜音模式。\n\n 得益于對時鐘抖動不敏感的數(shù)字輸入接口，該器件具有低RF敏感度。此外，TFA9882中使用的二階閉環(huán)結(jié)構(gòu)提供了出色的音頻性能和高電源電壓紋波抑制。\n\n

TFA9882

3.4 W I2S input mono class-D audio amplifier

TFA9882UK

3.4 W I2S input mono class-D audio amplifier; Small outline WLCSP9 package: 1.27 × 1.49 × 0.6 mm\nWide supply voltage range (fully operational from 2.5 V to 5.5 V)\nHigh efficiency (90 %, 4 ?/20 μH load) and low power dissipation\nQuiescent power: 6.5 mW (VDDD = 1.8 V, VDDP = 3.6 V, 4 ?/20 μH load, fs= 32 kHz)\n7.65 mW (VDDD = 1.8 V, VDDP = 3.6 V, 4 ?/20 μH load, fs = 48 kHz)\nOutput power: 1.4 W into 4 ? at 3.6 V supply (THD = 1 %)\n2.7 W into 4 ? at 5.0 V supply (THD = 1 %)\n3.4 W into 4 ? at 5.0 V supply (THD = 10 %)\nOutput noise voltage: 24 μV (A-weighted)\nSignal-to-noise ratio: 103 dB (VDDP = 5 V, A-weighted)\nFully short-circuit proof across load and to supply lines\nCurrent limiting to avoid audio holes\nThermally protected\nUndervoltage and overvoltage protection\nHigh-pass filter for DC blocking\nSimplified interface for audio and control settings\nLeft/right selection and mono mixing\nThree gain settings: -3 dB, 0 dB and +3 dB\nOutput slope setting for EMI reduction\nClip control for smooth clipping\nMute mode\nLow RF susceptibility\nInsensitive to input clock jitter\n‘Pop noise‘ free at all mode transitions\nShort power-up time: 4 ms\nShort power-down time: 5 μs\n1.8 V/3.3 V tolerant digital inputs\nOnly two external components required\n;

The TFA9882 is a mono, filter-free class-D audio amplifier in a 9-bump WLCSP (Wafer Level Chip-Size Package) with a 400 μm pitch.\nIt receives audio and control settings via an I2S digital interface. The Power-down to Operating mode transition is triggered when a clock signal is detected on the bit clock input (BCK). Two devices can be combined to build a stereo application.\nIn stereo applications, the left or right I2S audio stream is selected by connecting the word select signal to, respectively, pin WSL or pin WSR. Mono mixing can be achieved by connecting the word select signal to both WSL and WSR. Switching off the word select signal selects Mute mode.\nThe device features low RF susceptibility because it has a digital input interface that is insensitive to clock jitter. The second order closed loop architecture used in the TFA9882 provides excellent audio performance and high supply voltage ripple rejection.\n

TFA9882_15

3.4 W I2S input mono class-D audio amplifier

TFA9882UK

3.4 W I2S input mono class-D audio amplifier

TFA9882UK/N2Z

音頻放大器和前置放大器;

NXP