Philips HTS3576/78, Service Manual

Page: 28 / 35

8 - 1 8 - 1
AMP BOARD
TABLE OF CONTENTS
Circuit Diagram .................................................................................. 8-1
PCB Layout Top View ....................................................................... 8-2
PCB Layout Bottom View .................................................................. 8-3
INTERNAL IC DIAGRAM - TAS5508APAG
Power Supply
VR_
PLL
AVDD_
PLL
AVSS_
PLL
AVDD_REF
VBGA
P
VRA_
PLL
VRD_
PLL
DVDD
DV
SS
AVDD
AVSS
MCLK
XTL_OUT
XTL_IN
PLL_FLTM
PLL_FLTP
OSC CAP
SCLK
LRCLK
SDIN1
SDIN2
SDIN3
SDIN4
SDA
SCL
RESET
PDN
MUTE
HP_SEL
BKND_ERR
12C
Serial
Control
I/F
C
lock,
P
LL,
and Seria
l
Dat
e
I/F
Device
Control
Sy
st
e
m
C
o
nt
rol
DA
P
C
o
nt
rol
PWM
C
o
nt
rol
8x8
C
ro
ssb
er
Mix
er
8x2
C
ro
ssb
er
Mix
er
8
8 4
8
8 8
2
2
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
0
Det
7
Blquads
Soft
Tone
Soft
Vol
Loud
Comp DRC
9
Volume
Control
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
DC
Block
De
Emph Interpolate SRC NS PWM
PWM Section
PSVC
Ou
tpu
t C
o
nt
rol
PWM_MPP and MR
PWM_MPP and ML
PWM AP and AM2 R Front
PWM AP and AM1 L Front
PWM AP and AM3 L Rear
PWM AP and AM4 R Rear
PWM AP and AM7 Center
PWM AP and AM8
Subwoofer
PWM AP and AM5 L Surround
PWM L Lineout
PWM AP and AM5 R Surround
PWM R Lineout
VALID
PSVS
INTERNAL IC DIAGRAM - TAS5352ADDV
System
Microcontroller
12C
TAS5518
VALID
Left-
Channel
Output
Right-
Channel
Output
RESET_AB
RESET_CD
SD
OTW
SD
OTW
PWM_A
PWM_B
PWM_C
PWM_D
M1
M2
M3
Hardwire
Mode
Control
34.5V
System
Power
Supply
GND
GND
GNDD(12V)/VDD(12V)
12V
PVDD
VAC
PVDD
Power
Supply
Decoupling
GVDD
VDD
VREG
Power Supply
Decoupling
Hardwire
DC Llmit
4
4 4
Input
H-Bridge 2
Input
H-Bridge 1
PVDD_A
¡B
B
¡B
C
¡B
D
GND_A
¡B
B
¡B
C
¡B
D
GVDD_A
¡B
B
¡B
C
¡B
D
GND VDD VREG
AGHD OC_AD
J
Output
H-Bridge 2
Output
H-Bridge 1
2-Channel
H-Bridge
BTL Mode
BST_A
BST_B
OUT_A
OUT_B
OUT_C
OUT_D
BST_C
BST_D
Bootstrap
Capacitors
Bootstrap
Capacitors
2nd-Order L-C
Output Filter
for Each
Half-Bridge
2nd-Order L-C
Output Filter
for Each
Half-Bridge