TS4972IJT STMicroelectronics, TS4972IJT Datasheet
TS4972IJT
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TS4972IJT Summary of contents
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... Portable Audio Devices ORDER CODE Package Part Temperature Number Range J TS4972IJT -40, +85° Flip Chip Package - only available in Tape & Reel (JT)) January 2003 1.2W AUDIO POWER AMPLIFIER WITH STANDBY MODE ACTIVE HIGH PIN CONNECTIONS (Top View) TS4972JT - FLIP CHIP TYPICAL APPLICATION SCHEMATIC ...
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TS4972 ABSOLUTE MAXIMUM RATINGS Symbol 1) V Supply voltage Input Voltage i T Operating Free Air Temperature Range oper T Storage Temperature stg T Maximum Junction Temperature j R Thermal Resistance Junction to Ambient thja Pd Power ...
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ELECTRICAL CHARACTERISTICS V = +5V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load 1) Standby Current I STANDBY No input signal, Vstdby = Vcc ...
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TS4972 ELECTRICAL CHARACTERISTICS V = 2.6V, GND = 0V 25°C (unless otherwise specified) CC amb Symbol Supply Current input signal, no load 1) Standby Current I STANDBY No input signal, Vstdby = Vcc ...
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Fig Open Loop Frequency Response 60 Gain Tamb = Phase 20 0 -20 -40 0 100 1000 Frequency (kHz) Fig Open Loop Frequency Response 80 Gain 60 RL ...
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TS4972 Fig Open Loop Frequency Response 100 80 Phase 60 Gain Vcc = 560pF -20 Tamb = 25 C -40 0 100 1000 Frequency (kHz) Fig Open Loop ...
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Fig Power Supply Rejection Ratio (PSRR) vs Power supply -30 Vripple = 200mVrms Rfeed = 22 -40 Input = floating Tamb = 25 C -50 Vcc = 5V, 3.3V & 2.6V - ...
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TS4972 Fig Pout @ THD + Supply Voltage & 1kHz 6 1.2 BW < 125kHz 4 Tamb = 25 C ...
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Fig THD + N vs Output Power Vcc = Cin = < 125kHz 20kHz Tamb = 25 C 0.1 20Hz 0.01 1E-3 0.01 0.1 ...
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TS4972 Fig THD + N vs Output Power Vcc = Cin = < 125kHz Tamb = 25 C 20kHz 0.1 20Hz 0.01 1E-3 0.01 ...
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Fig THD + N vs Output Power Vcc = 0.1 F, Cin = < 125kHz 20Hz Tamb = 25 C 0.1 20kHz 0.01 1E-3 ...
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TS4972 Fig THD + N vs Output Power Vcc = Cin = < 125kHz 1 Tamb = 25 C 0.1 20Hz 20kHz 0.01 1kHz ...
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Fig THD + N vs Frequency Vcc = < 125kHz Pout = 1.3W Tamb = 25 C 0.1 0.01 20 100 1000 Frequency (Hz) ...
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TS4972 Fig THD + N vs Frequency 0 0.01 20 100 1000 Frequency (Hz) Fig THD + N vs Frequency 0.1 Cb ...
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Fig THD + N vs Frequency 0.01 20 100 1000 Frequency (Hz) Fig THD + N vs Frequency 0 ...
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TS4972 Fig THD + N vs Frequency 0.1 Pout = 315mW 0.01 Pout = 630mW 1E-3 20 100 1000 Frequency (Hz) Fig THD + N vs Frequency 0.1 Pout = 140mW 0.01 Pout = 280mW 1E-3 ...
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Fig Signal to Noise Ratio vs Power Supply with Unweighted Filter (20Hz to 20kHz) 100 90 RL=16 RL 2.5 3.0 3.5 4.0 Vcc (V) Fig Signal to Noise Ratio vs Power Supply ...
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TS4972 Fig Current Consumption vs Standby Voltage @ Vcc = 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Vstandby (V) Fig Current Consumption vs Standby Voltage @ Vcc ...
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APPLICATION INFORMATION Fig Demoboard Schematic S1 VCC VCC Vcc S2 GND GND P1 Neg. Input Pos. Input C4 S5 Positive Input mode VCC R7 100k S8 R8 Standby 1k Fig Flip-Chip 300µm ...
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TS4972 Fig Flip-Chip 300µm Demoboard Top Solder Layer Fig Flip-Chip 300µm Demoboard Bottom Solder Layer BTL Configuration Principle The TS4972 is a monolithic power amplifier with a BTL output type. BTL (Bridge Tied Load) means that ...
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Power dissipation and efficiency Hypothesis : • Voltage and current in the load are sinusoidal (Vout and Iout) • Supply voltage is a pure DC source (Vcc) Regarding the load we have sin t ( ...
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TS4972 The charge time directly proportional to the internal generator resistance 50k . Then, the charge time constant for 50k xCb ( directly connected to the non-inverting input (pin 2 ...
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In lower frequency we want 20 Hz (-3dB cut off frequency). Then ----------------------------- - = 795nF IN 2 RinF C L So, we could use for Cin a 1µF capacitor value which gives 16Hz. In Higher frequency ...
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TS4972 Application n°3 : 50Hz to 10kHz bandwidth and 10dB gain BTL power amplifier. Components : Designator R1 33k / 0.125W R2 Short Circuit R4 22k / 0.125W R6 Short Cicuit R7 100k / 0.125W R8 Short Cicuit C2 470pF ...
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Note on how to use the PSRR curves (page 7) We have finished a design and we have chosen the components values : • Rin=Rfeed=22k • Cin=100nF • Cb=1µF Now, on fig. 13, we can see the PSRR (input grounded) ...
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TS4972 Fig. 87 :TS4972 Footprint Recommendation (Non Solder Mask Defined) =250 m =250 m =250 m =250 m =250 m =400 m =400 m =400 m =400 m =400 m Solder mask opening Solder mask opening Solder mask opening Solder ...
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TAPE & REEL SPECIFICATION ( top view ) User direction of feed User direction of feed User direction of feed User direction of feed 4972 4972 A72 A72 4972 4972 A72 A72 TS4972 27/28 ...
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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied ...