TDA7492P13TR STMicroelectronics, TDA7492P13TR Datasheet
TDA7492P13TR
Specifications of TDA7492P13TR
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TDA7492P13TR Summary of contents
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... ECOPACK , environmentally-friendly package Table 1. Device summary Order code Operating temp. range TDA7492P 0° to 70° C TDA7492P13TR 0° to 70° C September 2009 dual BTL class-D audio amplifier = 8 Ω L Description The TDA7492P is a dual BTL class-D audio amplifier with single power supply, designed for LCD TVs and monitors ...
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Contents Contents 1 Device block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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TDA7492P List of tables Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
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List of figures List of figures Figure 1. Internal block diagram (showing one channel only ...
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TDA7492P 1 Device block diagram Figure 1 shows the block diagram of one of the two identical channels of the TDA7492P. Figure 1. Internal block diagram (showing one channel only) Doc ID 15068 Rev 3 Device block diagram 5/26 ...
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Pin description 2 Pin description 2.1 Pin-out Figure 2. Pin connections (top view, PCB view) SUB_GND OUTPB OUTPB PGNDB PGNDB PVCCB PVCCB OUTNB OUTNB OUTNA OUTNA PVCCA PVCCA PGNDA PGNDA OUTPA OUTPA PGND 6/ ...
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TDA7492P 2.2 Pin list Table 2. Pin description list Number Name 1 SUB_GND 2,3 OUTPB 4,5 PGNDB 6,7 PVCCB 8,9 OUTNB 10,11 OUTNA 12,13 PVCCA 14,15 PGNDA 16,17 OUTPA 18 PGND 19 VDDPW 20 STBY 21 MUTE 22 INPA 23 ...
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Electrical specifications 3 Electrical specifications 3.1 Absolute maximum ratings Table 3. Absolute maximum ratings Symbol V DC supply voltage for pins PVCCA, PVCCB, SVCC CCMAX Voltage limits for input pins STANDBY, MUTE, INNA, INPA INNB, INPB, GAIN0, GAIN1 ...
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TDA7492P Table 5. Electrical specifications (continued) Symbol V Overvoltage protection threshold - OVP Undervoltage protection V UVP threshold R Power transistor on resistance dsON P Output power o P Output power o P Power dissipated by device D η Efficiency ...
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Characterization curves 4 Characterization curves The following characterizations were made using the SZ-LAB-TDA7492P demo board. The LC filter for the 6 Ω load used 22 µH and 220 nF components, whilst that for the 8 Ω load used 33 µH ...
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TDA7492P Figure 5. THD at 100 Hz vs output power Test conditions: Vcc = Ω, Rosc = 39 kΩ, Cosc = 100 nF 100 Hz dB, Tamb = 25r C ...
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Characterization curves Figure 8. Crosstalk vs frequency Test conditions: Vcc = Ω, Rosc = 39 kΩ, Cosc = 100 nF kHz dB Tamb = 25r ...
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TDA7492P Characterizations for 8 Ω loads with 20 V 4.2 Figure 11. Output power vs supply voltage Test conditions: Vcc = Ω, Rosc = 39 kΩ, Cosc = 100 nF ...
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Characterization curves Figure 13. THD at 100 Hz vs output power Test conditions: Vcc = Ω, Rosc = 39 kΩ, Cosc = 100 nF 100 Hz dB, Tamb = 25r ...
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TDA7492P Figure 16. Crosstalk vs frequency Test conditions: Vcc = Ω, Rosc = 39 kΩ, Cosc = 100 nF kHz dB Tamb = 25r C ...
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Characterization curves Figure 19. Test board (SZ-LAB-TDA7492P) layout 16/26 Doc ID 15068 Rev 3 TDA7492P ...
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TDA7492P 5 Applications circuit Figure 20. Applications circuit for class-D amplifier Input settings for standby, mute and play: STBY : MUTE 3 3.3 ...
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Applications information 6 Applications information 6.1 Mode selection The three operating modes of the TDA7492P are set by the two inputs STBY (pin 20) and MUTE (pin 21). Standby mode: all circuits are turned off, very low current consumption. Mute ...
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TDA7492P 6.2 Gain setting The gain of the TDA7492P is set by the two inputs, GAIN0 (pin 30) and GAIN1 (pin31). Internally, the gain is set by changing the feedback resistors of the amplifier. Table 7. Gain settings GAIN0 0 ...
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Applications information 6.4 Internal and external clocks The clock of the class-D amplifier can be generated internally or can be driven by an external source. If two or more class-D amplifiers are used in the same system recommended ...
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TDA7492P 6.5 Output low-pass filter To avoid EMI problems, it may be necessary to use a low-pass filter before the speaker. The cutoff frequency should be larger than 22 kHz and much lower than the output switching frequency ...
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Applications information 6.6 Protection function The TDA7492P is fully protected against overvoltages, undervoltages, overcurrents and thermal overloads as explained here. Overvoltage protection (OVP) If the supply voltage exceeds the value for V page 8 the overvoltage protection is activated which ...
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TDA7492P 7 Package mechanical data The TDA7492P comes in a 36-pin PowerSSO package with exposed pad down. Figure 28 shows the package outline and Figure 28. PowerSSO-36 EPD outline drawing Table 9 gives the dimensions. Doc ID 15068 Rev 3 ...
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Package mechanical data Table 9. PowerSSO-36 EPD dimensions Symbol Min A 2. 0.18 c 0.23 D 10. 10. 0.60 ...
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TDA7492P 8 Revision history Table 10. Document revision history Date 30-Sep-2008 11-May-2009 02-Sep-2009 Revision 1 Initial release. Updated supply operating range Changed beginning of Updated Table 5: Electrical specifications on ...
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