7.7.2 Bridge Tied Load (BTL) Configuration Curves
Free-air room temperature 25°C (unless otherwise noted), Measurements were made using TAS806MDEVM board and Audio Precision System 2722 with Analog Analyzer filter set to 20-kHz brickwall filter. All measurements taken with audio frequency set to 1 kHz and device PWM frequency set to 384 kHz, with Class D Bandwidth=80kHz (Listed in Register 0x53), Spread Spectrum Enable, Ferrite bead + Capacitor as the output filter, BD Modulation, unless otherwise noted.
1.
PVDD = 12 V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 6 Ω |
Figure 32. THD+N vs Frequency
1.
PVDD = 4.5V~16V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 8 Ω |
Figure 34. Output Power vs Supply Voltage
1.
PVDD = 12V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 6 Ω |
Figure 36. THD+N vs Output Power
1.
PVDD = 12 V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 6 Ω, PO = 1 W |
Figure 38. Crosstalk
1.
PVDD = 5V, 7.4V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 4 Ω |
Figure 40. Efficiency vs Output Power
1.
PVDD = 7.4V, 12V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 6 Ω |
Figure 42. Efficiency vs Output Power
1.
PVDD = 12 V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 8 Ω |
Figure 33. THD+N vs Frequency
1.
PVDD = 7.4V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 4 Ω |
Figure 35. THD+N vs Output Power
1.
PVDD = 12V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 8 Ω |
Figure 37. THD+N vs Output Power
1.
PVDD = 12V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 8 Ω , PO = 1 W |
Figure 39. Crosstalk
1.
PVDD = 7.4V, 12V |
Ferrite bead + Capacitor |
Spread Spectrum Enable |
FSW = 384 kHz |
BD Modulation |
Load = 8 Ω |
Figure 41. Efficiency vs Output Power