Datasheet TDA7850 (STMicroelectronics) - 5

TDA7850 Block diagram and application circuit 1 Block diagram and application circuit 1.1 Block diagram Figure 1. Block diagram
Vcc1 Vcc2 470μF 100nF ST-BY MUTE HSD HSD/VOFF_DET OUT1+ IN1 OUT1- 0.1μF PW-GND OUT2+ IN2 OUT2- 0.1μF PW-GND OUT3+ IN3 OUT3- 0.1μF PW-GND OUT4+ IN4 OUT4- 0.1μF PW-GND AC-GND SVR TAB S-GND 0.47μF 47μF D94AU158D
1.2 Standard test and application circuit Figure 2. Standard test and application circuit
C8 C7 0.1μF 2200μF Vcc1-2 Vcc3-4 6 20 R1 ST-BY 4 9 10K C9 8 OUT1 1μF R2 7 MUTE 22 47K C10 1μF 5 C1 2 OUT2 IN1 11 3 0.1μF IN2 12 17 C2 0.1μF 18 OUT3 19 IN3 15 C3 0.1μF 21 IN4 14 24 OUT4 C4 0.1μF S-GND 23 13 16 10 25 1 SVR HSD/OD TAB C5 C6 *) 0.47μF R3 47μF *) R3 = 10kΩ to be placed when pin 25 is used as offset detector. D95AU335C 5/18 Document Outline Table 1. Device summary 1 Block diagram and application circuit 1.1 Block diagram Figure 1. Block diagram 1.2 Standard test and application circuit Figure 2. Standard test and application circuit 2 Pin description Figure 3. Pin connection (top view) 3 Electrical specifications 3.1 Absolute maximum ratings Table 2. Absolute maximum ratings 3.2 Thermal data Table 3. Thermal data 3.3 Electrical characteristics Table 4. Electrical characteristics Figure 4. Components and top copper layer of the Figure 2. Figure 5. Bottom copper layer Figure 2. 3.4 Electrical characteristic curves Figure 6. Quiescent current vs. supply voltage Figure 7. Output power vs. supply voltage (RL = 4W) Figure 8. Output power vs. supply voltage (RL = 2W) Figure 9. Distortion vs. output power (RL = 4W) Figure 10. Distortion vs. output power (RL = 2W) Figure 11. Distortion vs. frequency (RL = 4W) Figure 12. Distortion vs. frequency (RL = 2W) Figure 13. Crosstalk vs. frequency Figure 14. Supply voltage rejection vs. frequency Figure 15. Output attenuation vs. supply voltage Figure 16. Power dissipation and efficiency vs. output power (RL = 4W, SINE) Figure 17. Power dissipation and efficiency vs. output power (RL = 2W, SINE) Figure 18. Power dissipation vs. output power (RL = 4W, audio program simulation) Figure 19. Power dissipation vs. output power (RL = 2W, audio program simulation) Figure 20. ITU R-ARM frequency response, weighting filter for transient pop 4 Application hints 4.1 SVR 4.2 Input stage 4.3 Standby and muting 4.4 DC offset detector 4.5 Heatsink definition 5 Package information Figure 21. Flexiwatt25 (vertical) mechanical data and package dimensions Figure 22. Flexiwatt25 (horizontal) mechanical data and package dimensions 6 Revision history Table 5. Document revision history