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MSM7502

Features: • Single +5 V Power Supply• Low Power Dissipation Power ON Mode : 30 mW Typ. 53 mW Max. Power Saving Mode : 2 mW Typ. 5 mW Max.• In compliance with ITU-T's companding law• Transmission clocks : 64, 128, 256, 512, 1024, 2048 kHz 96, 192, 384, 768, 1536, 1544 kHz...

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SeekIC No. : 004429077 Detail

MSM7502: Features: • Single +5 V Power Supply• Low Power Dissipation Power ON Mode : 30 mW Typ. 53 mW Max. Power Saving Mode : 2 mW Typ. 5 mW Max.• In compliance with ITU-T's companding law...

MSM7502 Data Sheet

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Part Number:
MSM7502
Supply Ability:
5000

Price Break

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

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Upload time: 2024/11/23

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Product Details

Description



Features:

• Single +5 V Power Supply
• Low Power Dissipation
   Power ON Mode : 30 mW Typ. 53 mW Max.
   Power Saving Mode : 2 mW Typ. 5 mW Max.
• In compliance with ITU-T's companding law
• Transmission clocks : 64, 128, 256, 512, 1024, 2048 kHz
                                     96, 192, 384, 768, 1536, 1544 kHz
• Built-in PLL
• Built-in Reference Voltage Supply
• 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
• Key Scanning I/O
   Output : 8 bits
   Input : 8 bits
• Direct Connection to Handset : 1.2 k driving available
• Built-in Pre-amplifier for Loud-speaker
• Hand-free Interface
• m-law/A-law Switchable CODEC
• LCD Deflection Angle Voltage : Controlled by processor, 8 levels
• Package :
   80-pin plastic QFP (QFP80-P-1420-0.80-BK) (Product name : MSM7502GS-BK)


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Conditions
Limits
Unit
VDD
 Power Supply Voltage
AG, DG = 0 V
0.3 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 MSM7502, developed especially for low-power and multi-function applications in touchtone telephone sets and digital telephone terminals of digital PBXs, is a single +5 V power supply CODEC device. The MSM7502 consists of the analog speech paths directly connectable to a handset,the calling circuit directly connectable to a piezosounder, the push-button key scanning interface between push buttons and control processors, the dial tone generator, the m-law/A-law CODEC,and the processor interface. The functions of MSM7502 can be controlled via 8-bit data bus.

For the CODEC of the MSM7502, an MSM7543 is used as a core CODEC, so the MSM7502 provides the available bit clock range wider than the family product MSM6895.

In addition, the MSM7502 performs the greater key interface function and offers the upgraded side-tone level, receive level, and speaker pre-amplifier output level.




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