msm7503 Oki Semiconductor, msm7503 Datasheet - Page 3

• Manufacturer Part Number: msm7503
• Description: Multi-function Pcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
BLOCK DIAGRAM
MLDYI
MPAO
MPBO
RMO0
XOUT
RMO1
TPAO
MPAI
MPBI
TEST
TPAI
TPBI
RPO
R1N
R2N
CAO
RMI
SPO
T1N
T2N
SA0
R1I
R2I
SPI
X1
X2
+
SW9
0 dB
Voltage Detect
SW10
20 dB
VOL10
VOL9
0 dB
Crystal Oscillator
-
-
VOL6
VA
-
+
-
VD
Detector
VOL13
Start bit
R • Mix
VOL8
-
1024 kHz
-
AG
Transmit Polarity Definition
Reset
DG
+
-8.7 dB
-6.8 dB
VOL11
VOL12
SW5
VOL1
VOL2
VOL7
-3 dB
VOL5
0 dB
0 dB
0 dB
T • Mix
-
SW19
SW5
SW17
SW14
SW13
SW18
SW21
SW15
SW11
SW20
SW3
SW4
SW6
SW8
SGT SGC
Communication Suppervisor
SG GEN.
T • Counter
Start-Stop
Sampling
I/O CLK
WDT Output
SW16
SW1
SW2
SW7
Scanning Output
R Tone GEN.
S Tone GEN.
DIV
F Tone GEN.
VLCD GEN.
400 ¥ 16
400 ¥ 20
PB GEN.
1 kHz
PO0~PO7
Latch
400
425
440
450
5.7 dB
VOL3
VOL4
0 dB
64 kHz
Man-machine INTF
AOUT
CODEC
PCMOUT
m/A
PCMIN
Scanning Input
AIN
PI0~PI7
Processor
INTF
SW12
MSM7503
8 kHz
3/41
PS
SYNC
CLK1
CLK2
CLK3
CLC
FHW
FD
FK
BHW
BD
BDS
CTEST
LRSTN
TO
CAI
WRN
RDN
CEN
DB0
to
DB7
AD0
AD1
LA
LB
VLCD