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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 con...

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SeekIC No. : 004429078 Detail

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, ...

MSM7503 Data Sheet

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Part Number:
MSM7503
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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


Pinout

Connection Diagram


Specifications

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



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 of MSM7503 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.




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