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MFG:250 Package Cooled:OKI
Part Number: MSM7503
MFG: 250
Package Cooled: OKI
Description: The MSM7503 is a high performance, low power CODEC LSI device integrating a 2-wire time division trans...
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MSM7503
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DataSheet
General Description
MSM7503 General Description
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.
MSM7503 Maximum Ratings
|
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 |
MSM7503 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),
DC balance bit (1 bit), totalling 16 bits
• Control Data Interface supports synchronous and asynchronous communications
• Built-in Power-on Reset by the power supply voltage monitoring
• Output of the ping-pong transmission monitoring signal
• CODEC complied by the ITU-T companding law
• Calling Tone Interval : Controlled by processor
• Calling Tone Combination : Controlled by processor, 6 modes
• Calling Tone Volume : Controlled by processor, 4 modes
• Ringing Tone Interval : Controlled by processor
• Ringing Tone Frequency : Controlled by processor, 6 modes
• Ringing Tone Level : Controlled by processor, 4 levels
• Built-in PB Tone Generator
• Built-in Speech path Control Switches
• General Latch Output for External Control : 2 bits
• Watch-dog Timer : 500 ms
• 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),
DC balance bit (1 bit), totalling 16 bits
• Control Data Interface supports synchronous and asynchronous communications
• Built-in Power-on Reset by the power supply voltage monitoring
• Output of the ping-pong transmission monitoring signal
• CODEC complied by the ITU-T companding law
• Calling Tone Interval : Controlled by processor
• Calling Tone Combination : Controlled by processor, 6 modes
• Calling Tone Volume : Controlled by processor, 4 modes
• Ringing Tone Interval : Controlled by processor
• Ringing Tone Frequency : Controlled by processor, 6 modes
• Ringing Tone Level : Controlled by processor, 4 levels
• Built-in PB Tone Generator
• Built-in Speech path Control Switches
• General Latch Output for External Control : 2 bits
• Watch-dog Timer : 500 ms
MSM7503 Connection Diagram
MSM7503
PDF/DataSheet Download
- Datasheet: MSM7503
- File Size: 251376 KB
- Manufacturer: OKI
- Click here to Download
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MSM7503 Relative Products
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