TS4902 ST Microelectronics, Inc., TS4902 Datasheet
TS4902
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TS4902 Summary of contents
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... ULTRA LOW DISTORTION (0.1%) UNITY GAIN STABLE AVAILABLE IN MiniSO8 & SO8 DESCRIPTION The TS4902 is an audio power amplifier designed to provide the best price to power ratio while pre- serving high audio quality. Available in MiniSO8 & SO8 package capable of delivering up to 0.7W of continuous RMS ouput power into an 8 load @ 5V ...
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... TS4902 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 SO8 MiniSO8 4) Pd Power Dissipation ESD Human Body Model ESD Machine Model ...
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... Standby mode is actived when Vstdby is tied to GND 2. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the surimposed sinus signal to Vcc @ f = 217Hz 3. All electrical values are made by correlation between 2.6V and 5V measurements Parameter 2) RFeed = 22K Vripple = 200mV rms 3) Parameter 2) RFeed = 22K Vripple = 200mV rms TS4902 Min. Typ. Max. Unit 1000 nA 5 ...
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... TS4902 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 = GND Output Offset Voltage Voo No input signal Output Power Po THD = 1% Max 1kHz Total Harmonic Distortion + Noise THD + 200mW rms 20Hz < ...
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... Frequency (kHz) Vcc = 3.3V Gain 560pF Tamb = 100 1000 10000 Frequency (kHz) Vcc = 2.6V Gain 560pF Tamb = 100 1000 10000 Frequency (kHz) TS4902 0 -20 -40 -60 -80 -100 -120 -140 -160 -180 -200 -220 0 -20 -40 -60 -80 -100 -120 -140 ...
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... TS4902 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 Frequency Response 100 80 Phase 60 Gain Vcc = 2.6V - 560pF Tamb = 25 C -40 0 100 1000 Frequency (kHz) 6/19 Fig Open Loop Frequency Response ...
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... Fig Power Supply Rejection Ratio (PSRR) vs Input Capacitor -10 -20 -30 -40 -50 -60 10 10000 100000 Rfeed=22k Rfeed=10k 10000 100000 TS4902 Cfeed=0 Cfeed=150pF Cfeed=330pF Cfeed=680pF 100 1000 10000 100000 Frequency (Hz) Cin=1 F Vcc = 5 to 2.2V Cin=330nF Rfeed = 22k, Rin = 22k Cin=220nF Rg = 100 , Tamb = 25 C ...
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... TS4902 Fig Pout @ THD + Supply Voltage & 0 1kHz BW < 125kHz 4 Tamb = 25 C 0.6 0.4 0.2 0.0 2.5 3.0 3.5 4.0 Vcc (V) Fig Power Dissipation vs Pout 1.4 Vcc=5V 1.2 f=1kHz THD+N<1% 1.0 0.8 0.6 0.4 0.2 RL=16 0.0 0.0 0.2 0.4 0.6 Output Power (W) Fig Power Dissipation vs Pout 0.40 Vcc=2.6V 0.35 f=1kHz THD+N<1% 0.30 0.25 0.20 0.15 0.10 0.05 RL=16 0.00 0.0 0.1 Output Power (W) 8/19 Fig Pout @ THD + N = 10% vs Supply Voltage ...
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... & Vcc= 1kHz BW < 125kHz Tamb = 25 C Vcc=4.5V Vcc=4V Vcc=3.5V Vcc=3V Vcc=2. Load Resistance (ohm) Cfeed = 330pF Cfeed = 680pF Cfeed = 2.2nF Cin = 470nF Cin = 22nF Cin = 82nF Rin = Rfeed = 22k Tamb = 25 C 100 1000 Frequency (Hz) TS4902 32 10000 9/19 ...
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... TS4902 Fig THD + N vs Output Power Vcc = Cin = < 125kHz Tamb = 20kHz 20Hz, 1kHz 0.1 1E-3 0.01 0.1 Output Power (W) Fig THD + N vs Output Power Vcc = 3. Cin = < 125kHz Tamb = 20kHz 20Hz, 1kHz 0.1 1E-3 0.01 0.1 Output Power (W) Fig THD + N vs Output Power Vcc = 2 ...
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... Fig THD + N vs Output Power Vcc = 3. Cin = < 125kHz Tamb = 0.1 1kHz 1 1E-3 Fig THD + N vs Output Power Vcc = 2. Cin = < 125kHz Tamb = 0.1 0.1 1E-3 TS4902 20Hz 20kHz 0.01 0.1 1 Output Power (W) 20kHz 20Hz 0.01 0.1 1 Output Power (W) 20Hz 20kHz 1kHz 0.01 0.1 Output Power (W) 11/19 ...
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... TS4902 Fig THD + N vs Output Power Vcc = Cin = < 125kHz 1 Tamb = 25 C 20kHz 0.1 20Hz, 1kHz 0.01 1E-3 0.01 Output Power (W) Fig THD + N vs Output Power Vcc = 3. Cin = < 125kHz 1 Tamb = 25 C 20kHz 0.1 20Hz, 1kHz 0.01 1E-3 0.01 Output Power (W) Fig THD + N vs Output Power ...
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... Weighted Filter Type RL Cin = 1µF THD+N < 0.4% Tamb = 25°C 50 4.5 5.0 2.5 Fig Current Consumption vs Standby Voltage @ Vcc = 0.0 0 TS4902 RL=8 RL=16 RL Cin = 1µF THD+N < 0.7% Tamb = 25°C 3.0 3.5 4.0 4.5 Vcc (V) RL=8 RL=16 RL Cin = 1µF THD+N < 0.7% Tamb = 25°C 3.0 3.5 4.0 4.5 Vcc (V) Vcc = 5V Tamb = 25 C 1.0 1 ...
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... TS4902 Fig Current Consumption vs Standby Voltage @ Vcc = 3. 0.0 0.5 1.0 1.5 2.0 Vstandby (V) 14/19 Fig Current Consumption vs Standby Voltage @ Vcc = 2. Vcc = 3.3V Tamb = 0.0 2.5 3.0 Vcc = 2.6V Tamb = 25 C 0.5 1.0 1.5 2.0 2.5 Vstandby (V) ...
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... BTL Configuration Principle The TS4902 is a monolithic power amplifier with a BTL (Bridge Tied Load) output configuration. BTL means that each end of the load is connected to two single ended output amplifiers. Thus, we have: Single ended output 1 = Vout1 = Vout (V) Single ended output 2 = Vout2 = -Vout (V) ...
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... Vpeak = Vcc, so ---- - = 78.5% 4 Decoupling of the circuit Two capacitors are needed to bypass properly the TS4902, a power supply bypass capacitor Cs and a bias voltage bypass capacitor Cb. Cs has especially an influence on the THD+N in high frequency (above 7kHz) and indirectly on the power supply disturbances. With 100µF, you can expect similar THD+N performances like shown in the datasheet lower than 100µ ...
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... The PSRR value for each frequency is : PSRR Log Remark : The measurement of the RMS voltage is not a selective RMS measurement but a full range 10000 100000 ( 125 kHz) RMS measurement. This means we have: the effective RMS signal + the noise. TS4902 -------------------------------------------- - 10 Rms ...
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... TS4902 PACKAGE MECHANICAL DATA 8 PINS - PLASTIC MICROPACKAGE (SO Dim. Min 0 0.65 b 0.35 b1 0. 4 3 18/ Millimeters Typ. Max. 1.75 0.25 1.65 0.85 0.48 0.25 0.5 45° (typ.) 5.0 6.2 1.27 3.81 4.0 1.27 0.6 8° (max Inches Min. Typ. Max. 0.069 0.004 0.010 0.065 0.026 0.033 0.014 ...
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... STMicroelectronics GROUP OF COMPANIES © http://www.st.com TS4902 4 1 Inches Min. Typ. Max. 0.043 0.002 0.004 0.006 0.031 0.034 0.037 0.010 0.013 0.016 0.005 0.007 ...