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TS4994FC Datasheet(PDF) 1 Page - STMicroelectronics |
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TS4994FC Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 35 page  December 2006 Rev 2 1/35 35 TS4994FC 1.2 W differential input/output audio power amplifier with selectable standby Features ■ Differential inputs ■ Near-zero pop & click ■ 100dB PSRR @ 217Hz with grounded inputs ■ Operating range from VCC = 2.5V to 5.5V ■ 1.2W rail-to-rail output power @ VCC =5V, THD = 1%, F = 1kHz, with 8 Ωload ■ 90dB CMRR @ 217Hz ■ Ultra-low consumption in standby mode (10nA) ■ Selectable standby mode (active low or active high) ■ Ultra fast startup time: 15ms typ. ■ Available in 9-bump flip-chip (300mm bump diameter) ■ Lead-free package Description The TS4994 is an audio power amplifier capable of delivering 1W of continuous RMS output power into an 8 Ωload @ 5V. Due to its differential inputs, it exhibits outstanding noise immunity. An external standby mode control reduces the supply current to less than 10nA. An STBY MODE pin allows the standby to be active HIGH or LOW. An internal thermal shutdown protection is also provided, making the device capable of sustaining short-circuits. The device is equipped with common mode feedback circuitry allowing outputs to be always biased at VCC/2 regardless of the input common mode voltage. The TS4994 is designed for high quality audio applications such as mobile phones and requires few external components. Applications ■ Mobile phones (cellular / cordless) ■ Laptop / notebook computers ■ PDAs ■ Portable audio devices Order codes TS4994EIJT - Flip-chip (9 bumps) V IN+ V O- V CC V IN- V O+ Gnd 1 2 3 76 5 4 8 Bypass Stdby Stdby Mode 9 V IN+ V O- V CC V IN- V O+ Gnd 1 2 3 76 5 4 8 Bypass Stdby Stdby Mode 9 Part number Temperature range Package Packaging Marking TS4994EIKJT -40°C, +85°C FC9 with back coating Tape & reel A94 TS4994EIJT Lead free flip-chip9 A94 www.st.com |
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