CX06833-3x/4x SMXXD Modem Data Sheet
Figure 1-1. SMXXD Modem Simplified Interface Diagram
Telephone
Line
TIP
TELEPHONE LINE
RING
Interface
Discrete
TIP
RING
PARALLEL
HOST BUS OR
SERIAL DTE
INTERFACE
HANDSET (OPTIONAL)
Components
CX06833
Single Chip Modem
144-Pin TQFP
CX20442
Voice Codec
(VC)
MIC
SPEAKER
32-Pin TQFP
(Optional)
(OPTIONAL)
102228_001
Figure 1-2. SMXXD Modem Major Interfaces
DAA Hardware
CX06833
Single Chip Modem
144-Pin TQFP
TELEPHONE
LINE
Telephone
Line Interface
Codec
Line Interface
Discrete
TIP
RING
Components
TELEPHONE
HANDSET
Voice Relay,
HS Pickup
(Optional)
TIP
RING
PARALLEL
Microcontroller
Unit (MCU)
Modem Data
Pump (MDP)
HOST BUS OR
SERIAL DTE
INTERFACE
HS Hybrid
Components
(Optional)
CX20442
Voice Codec (VC)
32-Pin TQFP
(Optional)
(Mic/Speaker)
Interface
(Optional)
MIC
SPEAKER
Digital Speaker
Circuit (Optional)
SOUNDUCER
Serial EEPROM
ROM
(256K x 8)
2K (256 x 8) to
256K (32K x 8)
(Optional)
RAM
1M (128K x 8)
(Optional)
RAM
(32K x 8)
Flash ROM
2M (256K x 8)
(Optional)
102228_002
102228A
Conexant
1-3
CONEXANT [ CONEXANT SYSTEMS, INC ]
