msm7584c Oki Semiconductor, msm7584c Datasheet - Page 2

• Manufacturer Part Number: msm7584c
• Description: Pi /4 Shift Qpsk Modem/adpcm Codec
• Manufacturer: Oki Semiconductor

¡ Semiconductor
BLOCK DIAGRAM
RO0 to RO1
AOUT–
AOUT+
RESET
DOUT
SGCR
PDN0
PDN1
PDN2
SGCT
VFRO
EXCK
SGM
AIN–
AIN+
DEN
GSX
SAO
PWI
IFIN
DIN
Q+
Q–
I+
I–
150 W driving AMP
+1
–1
+1
–1
–1
+1
–
+
T
+1
–
+
DC adjust
DC adjust
SW1
Phase detector
To internal SG
inside modem
2b
R
Transmitter
filter
RC
filter
Receiver
RC
VDD
generator
SW2
IFSEL
(From CR)
Noise
LPF
LPF
converter
converter
SW3
A/D
D/A
ATT
ATT
Control
register
Delay detector
VREF
Power detect
generator
D
SW4 SW5
E
C
TONE
D/A
D/A
LPF
BPF
SL1
SL2
To MODEM
To CODEC
+
+
ATT
ATT
S
E
L
(From CR)
Root Nyquist
TXCSEL
ATT
3.84M
S
E
L
LPF
To D/A
DPLL
AFC
Detect
pander
Voice
Com-
Expander
From CR
8b
S
E
L
Conv.
ADPCM
DECODER
A/D
CODER
Controller
ADPCM
Register
MAPPING
1/10
Serial
PLL
Judge
S
E
L
S/P
Offset adjust
384k
P/S
S/P
&
+
–
MSM7584C
RXD
RXC
RXSC
VDDM
DGM
AGM
RPR
AFC/RCW
SLS
BSTO
TXD
TXW
TXCI
TXCO
RSGAIN
RSSI
SGRS
DIO
WE
SAD
SAS
TAS
RWCK
CS1
CS2
VOXO
IS
PCMSI
PCMSO
BCLK
SYNC
PCMRI
PCMRO
IR
VOXI
RXMUTE
MLV2
MLV1
MLV0
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