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TS4973 数据表(PDF) 1 Page - STMicroelectronics |
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TS4973 数据表(HTML) 1 Page - STMicroelectronics |
1 / 9 page 1/9 s OPERATING FROM V CC = 2.8V to 5.5V s RAIL TO RAIL OUTPUT s 1.2W OUTPUT POWER @ Vcc=5V, THD=1%, F=1kHz, with 8 Ω Load s ULTRA LOW CONSUMPTION IN STANDBY MODE (10nA) s 53dB PSRR @ 217Hz from 2.8 to 5V s LOW POP & CLICK s ULTRA LOW DISTORTION (0.05%) s GAIN SETTINGS PIN : GS s UNITY GAIN STABLE s FLIP CHIP PACKAGE 9 x 300µm bumps DESCRIPTION At 3.3v, the TS4973 is an Audio Power Amplifier capable of delivering 400mW of continuous RMS ouput power into a 8 Ω bridged-tied loads with 1% THD+N, and 30mW( typ ) per channel of continu- ous average power into stereo 32 Ω BTL loads with 0.5% THD+N from 20Hz to 20kHz. An external standby mode control reduces the supply current to less than 10nA. An internal over-temperature shutdown protection is provided. The TS4973 has been designed for high quality audio applications such as mobile phones and to minimize the number of external components. It has two inputs which can be used to switch the gain between 6dB ( internal ) or a user’s adjust- able gain setting with one external resitance. APPLICATIONS s Mobile Phones (Cellular / Cordless) s PDAs s Laptop/Notebook computers s Portable Audio Devices ORDER CODE J = Flip Chip Package - only available in Tape & Reel (JT)) PIN CONNECTIONS (top view) Part Number Temperature Range Package Marking J TS4973IJT -40, +85°C • A73 TYPICAL APPLICATION SCHEMATIC Cb Cin1 Rin RL 8 Ohms Cs Inputs Audio VCC Bias AV = -1 In1 In2 Bypass Standby Vout 1 Vout 2 + - + - 1 3 6 8 2 5 7 4 9 Gain Setting TS4973 Cin2 Standby level threshold = 0.9V Gain Setting level threshold = 0.9V TS4973IJT - FLIP CHIP Vin1 GND BYPASS VOUT2 VCC Vin2 VOUT1 GS STBY Vin1 GND BYPASS VOUT2 VCC Vin2 VOUT1 GS STBY 1.2W TWO AUDIO INPUTS WITH GAIN CONTROL POWER AMPLIFIER WITH STANDBY MODE ACTIVE LOW February 2003 ADVANCE DATA TS4973 This is a preliminary information on a new product now in development. Details are subject to change without notice. |
类似零件编号 - TS4973 |
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类似说明 - TS4973 |
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