MSM7503 |
RFQ for MSM7503 Required Field |
 |
| Product | Manufacturers | Pack | D/C |
| MSM7503 | - | QFP80 | - |
The MSM7503 is a high performance, low power CODEC LSI device integrating a 2-wire time division transmission (ping-pong transmission) interface function and has a basic function of man-machine interface to that of the MSM7502.
The MSM7503 operates from single 5 V power supply and is ideal for digital telephone terminals such as pushbutton telephone sets and digital PBXs.
The MSM7503 ping-pong transmission interface supports a bidirectional communication of up to 800 m long on the 2-wire twisted pair line, and can send and receive voice data at 64 kbps and control data at 16 kbps.
The man-machine interface consists of analog speech path, key-scanner, tone generators,CODEC meeting the /A companding law, and processor interface, which are controlled via 8-bit data buses.
Features |
| • Single +5 V Power Supply• Low Power Dissipation Power ON Mode : 50 mW Typ. 100 mW Max. Power Down Mode : 15 mW Typ. 30 mW Max.• Pin-Pong Transmission : Burst of 8 kHz, Transmission of 256 kbps, AMI coding, 2-wire time division transmission• Transmission data configuration : Transmit Start bit (1 bit), K-bit (1 bit), Control bit (2 bits), Voice bit (8 bits), DC balance bit (1 bit), totalling 13 bits Receive Sync bit (4 bits), K-bit (1 bit),Control bit (2 bits), Voice bit (8 bits), |
|
Symbol |
Parameter |
Conditions |
Limits |
Unit |
|
VDD |
Power Supply Voltage |
AG, DG = 0 V |
0 to 7 |
V |
|
VAIN |
Analog Input Voltage |
0.3 to VDD + 0.3 |
V | |
|
VDIN |
Digital Input Voltage |
0.3 to VDD + 0.3 |
V | |
|
TSTG |
Storage Temperature |
- |
55 to +150 |
°C |
