TDA7350 STMicroelectronics, TDA7350 Datasheet
TDA7350
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... LOUDSPEAKER PROTECTION OVERRATING CHIP TEMPERATURE LOAD DUMP VOLTAGE FORTUITOUS OPEN GROUND DESCRIPTION The TDA7350 is a new technology class AB Audio Power Amplifier in the Multiwatt designed for car radio applications. APPLICATION CIRCUIT BRIDGE September 2003 This is advanced information on a new product now in development or undergoing evaluation. Details are subject to change without notice. ...
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... TDA7350 PIN CONNECTION (Top view) ABSOLUTE MAXIMUM RATINGS Symbol V Operating Supply Voltage Supply Voltage S V Peak Supply Voltage (for t = 50ms Output Peak Current (non rep. for t = 100 Output Peak Current (rep. freq. > 10Hz Power Dissipation at T tot T Storage and Junction Temperature ...
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... 3 10 13. 3 0 10k 100Hz C3 = 100 1KHz f = 10KHz (*) 10K (*) (**) 10K (**) 13. 3 0.1 to 10W 10K 100Hz C3 = 100 (*) 10K (*) (**) 10K (**) S TDA7350 = 14.4V 1KHz unless S Min. Typ. Max. Unit 120 100 A 150 ° 6 6.5 W 5 250 2.5 V 2.7 V 3.2 ...
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... TDA7350 Figure 1: STEREO Test and Appication Circuit Figure 2: P.C. Board and Layout (STEREO) of the circuit of fig. 1 (1:1 scale) 4/22 ...
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... Figure 3: BRIDGE Test and Appication Circuit Figure 4: P.C. Board and Layout (BRIDGE) of the circuit of fig. 3 (1:1 scale) TDA7350 5/22 ...
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... TDA7350 RECOMMENDED VALUES OF THE EXTERNAL COMPONENTS (ref to the Stereo Test and Applica- tion Circuit) Recommended Component Value C1 0.22 F Input Decoupling (CH1) C2 0.22 F Input Decoupling (CH2) C3 100 F Supply Voltage Rejection Filtering Capacitor Stand-By ON/OFF Delay C5 220 F (min) Supply By-Pass C6 100nF (min) Supply By-Pass ...
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... Figure 9: Output Power vs. Supply Voltage (Bridge) Figure 11: Distortion vs Output Power (Stereo) Figure 13: Distortion vs Output Power (Stereo) Figure 10: Drain Current vs Supply Voltage (Stereo) Figure 12: Distortion vs Output Power (Stereo) Figure 14: Distortion vs Output Power (Bridge) TDA7350 7/22 ...
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... TDA7350 Figure 15: SVR vs. Frequency & C Figure 17: SVR vs. Frequency & C Figure 19: Crosstalk vs. Frequency (Stereo) 8/22 (Stereo) Figure 16: SVR vs. Frequency & C SVR ; (Bridge) Figure 18: SVR vs. Frequency & C SVR Figure 20: Power Dissipation & Efficiency vs. ; (Stereo) SVR ; (Bridge) SVR Output Power (Stereo) ...
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... Output Power (Bridge) Figure 23: Power Dissipation & Efficiency vs. Output Power (Bridge) AMPLIFIER ORGANIZATION The TDA7350 has been developed taking care of the key concepts of the modern power audio am- plifier for car radio such as: space and costs sav- ing due to the minimized external count, excellent electrical performances, flexibility in use, superior reliability thanks to a built-in array of protections ...
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... TDA7350 Fig. 25 represents the detailed turn-on transient with reference to the stereo configuration. At the power-on the output decoupling capacitors are charged through an internal path but the de- vice itself remains switched off (Phase 1 of the represented diagram). When the outputs reach the voltage level of about ...
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... Figure 25: Turn-on Delay Circuit TDA7350 11/22 ...
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... TDA7350 Figure 26: Mute Function Diagram Figure 27: Block Diagram; Bridge Configuration 12/22 ...
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... The block diagram of each voltage amplifier is shown in fig. 33. Regardless of production spread, the current in each final stage is kept low, with enough margin on the minimum, below which cross-over distortion would appear. and cut-off frequency, is CEsat > 20V and BV > 50V both for CEO CBO each. Then, the TDA7350 13/22 ...
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... TDA7350 Figure 32: A Classical Output Stage Figure 33: Amplifier Block Diagram BUILT-IN PROTECTION SYSTEMS Short Circuit Protection The maximum current the device can deliver can be calculated by considering the voltage that may be present at the terminals of a car radio amplifier and the minimum load impedance. ...
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... Open Ground When the radio is in the ON condition and the ground is accidentally opened, a standard audio amplifier will be damaged. On the TDA7350 pro- tection diodes are included to avoid any damage. DC Voltage The maximum operating DC voltage for the TDA7350 is 18V. ...
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... This method can provide components and system cost saving. Reducing Turn On-Off Pop The TDA7350 has been designed in a way that the turn on(off) transients are controlled through the charge(discharge) of the Csvr capacitor result of it, the turn on(off) transient spec- trum contents is limited only to the subsonic range ...
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... A simple approach to solving these problems is to use the mute characteristics of the TDA7350. If the SVR pin voltage below 1.5 V, the mute attenuation (typ)is 30dB .The amplifier is in play mode when Vsvr overcomes 3.5 V. ...
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... TDA7350 Figure 42 Figure 43 18/22 ...
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... Figure 44 BALANCE INPUT IN BRIDGE CONFIGURATION A helpful characteristic of the TDA7350 is that,in bridge configuration, a signal present on both the input capacitors is amplified by the same amount Figure 45 Figure 46 and it is present in phase at the outputs,so this signal does not produce effects on the load.The typical value of CMRR is 46 dB. ...
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... TDA7350 A two transistor network (fig. 47) has been adopted whose components can be changed in order to achieve the desired gain without affecting the good performances of the audio amplifier itself. The recommended values for 40 dB overall gain are : Figure 47 20/22 Resistance Stereo R1 10K R2 4.3K R3 10K ...
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... TYP. MAX. MECHANICAL DATA 0.197 0.104 0.063 0.039 0.022 0.037 0.067 0.077 0.669 0.679 0.795 0.874 0.886 0.87 0.886 0.713 0.689 0.699 0.421 0.429 0.114 0.179 0.191 0.200 0.214 0.102 0.102 0.152 TDA7350 OUTLINE AND Multiwatt11 V 21/22 ...
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... TDA7350 Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. 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 ...