Philips MX3550D/37S - Internal IC Diagram

8-2
STA505 AUDIO APPLICATION CIRCUIT
TLV320A INTERNAL IC DIAGRAM
8-2
Control
Interface
Digital
Filters
Digital
Audio
Interface
–
DAC

6 to –73 dB,
1 dB Steps
Headphone
Driver
–
DAC

6 to –73 dB,
1 dB Steps
Headphone
Driver
CLKOUT
Divider
(1x, 1/2x)
OSC
CS
SDIN
SCLK
MODE
DVDD
BVDD
DGND
LRCIN
DIN
LRCOUT
DOUT
BCLK
AVDD
VMID
AGND
RLINEIN
LLINEIN
HPVDD
HPGND
RHPOUT
ROUT
LOUT
LHPOUT
XTI/MCLK
XTO
CLKOUT
DSPcodec
TLV320AIC23
1.0X
1.0X
VADC
VMID
50 k
50 k
–
ADC
2:1
MUX
VDAC
–
ADC
2:1
MUX
Mute,
0 dB, 20 dB
VMID
50 k
10 k
VADC
12 to –34.5 dB,
1.5 dB Steps
1.0X
1.5X
VDAC
12 to –34 dB,
1.5 dB Steps
MICBIAS
MICIN
CLKIN
Divider
(1x, 1/2x)
Line
Mute
Line
Mute
Side Tone
Mute
Bypass
Mute
Bypass
Mute
.
L18 22H
L19 22H
C30
1F
C20
100nF
C99
100nF
C101
100nF
C107
100nF
C106
100nF
C23
470nF
C55
1000F
C21
100nF
C58
100nF
C58
100nF
R57
10K
R59
10K
R63
20
R98
6
R100
6
C53
100nF
C60
100nF
C31
1F
C52
330pF
R104
20
C109
330pF
15
M3
IN1A
IN1A
IBIAS
CONFIG
PWRDNPWRDN
FAULT
TRI-STATE
TH_WAR
TH_WAR
+3.3V
IN1B
V
DD
V
DD
V
SS
V
SS
V
CC
SIGN
V
CC
SIGN
GND-Reg
GND-Clean
IN2A
IN1B
IN2A
IN2B
PROTECTIONS
&
LOGIC
REGULATORS
29
23
24
25
27
26
28
30
21
22
33
34
35
36
M2
M5
M4
17
16
OUT1A
GND1A
OUT1A
V
CC
1A
14
12
10
11
OUT1B
GND1B
OUT1B
V
CC
1B
13
L113 22H
L112 22 H
C32
1F
+V
CC
C108
470nF
C33
1F
7
M17
M15
M16
M14
8
9
OUT2A
GND2A
OUT2A
V
CC
2A
6
4
2
3
OUT2B
GND2B
OUT2B
V
CC
2B
5
19
31
20
GNDSUB
1
IN2B
32
C110
100nF
C111
100nF
R103
6
R102
6