TDA8927 Datasheet, PDF (22/36 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
15.5 Reference design bill of materials
Table 1 Two-chip class-D audio amplifier PCB (Version 2.1; 03-2001) for TDA8926J or TDA8927J and TDA8929T
(see Figs 9 and 10)
COMPONENT
DESCRIPTION
VALUE
In1 and In2
Cinch input connectors
Out1, Out2, V_DD, supply/output connectors
GND and V_SS
S1
on/mute/off switch
U1
power stage IC
TDA8926J/27J
U2
controller IC
TDA8929T
L2 and L4
L5, L6 and L7
demodulation filter coils
power supply ferrite beads
33 µH
C1 and C2
C3
supply decoupling capacitors for
V_DD to V_SS of the controller
clock decoupling capacitor
220 nF/63 V
220 nF/63 V
C4
12 V decoupling capacitor of the
220 nF/63 V
controller
C5
12 V decoupling capacitor of the power 220 nF/63 V
stage
C6 and C7
C8 and C9
supply decoupling capacitors for
V_DD to V_SS of the power stage
bootstrap capacitors
220 nF/63 V
15 nF/50 V
C10, C11,
C12 and C13
snubber capacitors
560 pF/100 V
C14 and C16 demodulation filter capacitors
470 nF/63 V
C15 and C17 resonance suppress capacitors
220 nF/63 V
C18, C19,
C20 and C21
common mode HF coupling capacitors 1 nF/50 V
C22 and C23 input filter capacitors
330 pF/50 V
C24, C25,
C26 and C27
input capacitors
470 nF/63 V
C28, C29,
C30 and C31
common mode HF coupling capacitors 1 nF/50 V
C32 and C33 power supply decoupling capacitors 220 nF/63 V
C34 and C35 power supply electrolytic capacitors 1500 µF/35 V
C36, C37,
C38 and C39
C40 and C41
C43
C44
D1
D2
R1
analog supply decoupling capacitors 220 nF/63 V
analog supply electrolytic capacitors
diagnostic capacitor
mode capacitor
5.6 V zener diode
7.5 V zener diode
clock adjustment resistor
47 µF/35 V
180 pF/50 V
220 nF/63 V
BZX79C5V6
BZX79C7V5
27 kΩ
COMMENTS
2 × Farnell: 152-396
2 × Augat 5KEV-02;
1 × Augat 5KEV-03
PCB switch Knitter ATE 1 E M-O-M
DBS17P package
SO24 package
2 × Sumida CDRH127-330
3 × Murata BL01RN1-A62
2 × SMD1206
SMD1206
SMD1206
SMD1206
SMD1206
2 × SMD0805
4 × SMD0805
2 × MKT
2 × SMD1206
4 × SMD0805
2 × SMD1206
4 × MKT
2 × SMD0805
2 × SMD1206
2 × Rubycon ZL very low ESR (large
switching currents)
4 × SMD1206
2 × Rubycon ZA low ESR
SMD1206
SMD1206
DO-35
DO-35
SMD1206
2001 Dec 11
22