TDA8927 Datasheet, PDF (23/36 Pages) NXP Semiconductors – Power stage 2 x 80 W class-D audio amplifier

Philips Semiconductors
Power stage 2 × 80 W class-D
audio amplifier
Objective specification
TDA8927
COMPONENT
R4, R5,
R6 and R7
R10
R11, R12,
R13 and R14
R15 and R16
R19
R20
R21
R22
R24
DESCRIPTION
input resistors
VALUE
10 kΩ
diagnostic resistor
snubber resistors
1 kΩ
5.6 Ω; >0.25 W
resonance suppression resistors
mode select resistor
mute select resistor
resistor needed when using an
asymmetrical supply
resistor needed when using an
asymmetrical supply
bias resistor for powering-up the power
stage
24 Ω
39 kΩ
39 kΩ
10 kΩ
9.1 kΩ
200 kΩ
COMMENTS
4 × SMD1206
SMD1206
4 × SMD1206
2 × SMD1206
SMD1206
SMD1206
SMD1206
SMD1206
SMD1206
15.6 Curves measured in reference design
10²
handbook, halfpage
THD+N
(%)
10
MLD627
1
10^−1
10^−2
10^−₁³_0−2
10^−1
1
(1)
(2)
(3)
10
10²
10³
Po (W)
2 × 8 Ω SE; V_P = ±25 V:
(1) 10 kHz.
(2) 1 kHz.
(3) 100 Hz.
Fig.13 THD + N as a function of output power.
10²
handbook, halfpage
THD+N
(%)
10
1
10^−1
10^−2
10^−3
10
10²
MLD628
(1)
(2)
10³
10⁴
10⁵
fi (Hz)
2 × 8 Ω SE; V_P = ±25 V:
(1) P_o = 10 W.
(2) P_o = 1 W.
Fig.14 THD + N as a function of input frequency.
2001 Dec 11
23