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MSM7544

Features: • Single power supply: +5 V ±5%• Low power consumption Operating mode: 20 mW Typ. 31.5 mW Max. VDD = 5 V Power save mode: 4.5 mW Typ. 8 mW Max. VDD = 5 V Power down mode: 1.5 mW Typ. 3 mW Max. VDD = 5 V• ITU-T Companding law MSM7543: -law MSM7544: A-law• The trans...

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SeekIC No. : 004429094 Detail

MSM7544: Features: • Single power supply: +5 V ±5%• Low power consumption Operating mode: 20 mW Typ. 31.5 mW Max. VDD = 5 V Power save mode: 4.5 mW Typ. 8 mW Max. VDD = 5 V Power down mode: 1.5 m...

MSM7544 Data Sheet

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Part Number:
MSM7544
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: 2024/11/26

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Product Details

Description



Features:

• Single power supply: +5 V ±5%
• Low power consumption
   Operating mode: 20 mW Typ. 31.5 mW Max. VDD = 5 V
   Power save mode: 4.5 mW Typ. 8 mW Max. VDD = 5 V
   Power down mode: 1.5 mW Typ. 3 mW Max. VDD = 5 V
• ITU-T Companding law
   MSM7543: -law
   MSM7544: A-law
• The transmission characteristics of the devices comply with ITU-T G.714
• Built-in PLL eliminates a master clock
• Serial data rate: 64/128/256/512/1024/2048 kHz
                              96/192/384/768/1536/1544 kHz
• Adjustable transmit gain
• Adjustable receive gain
• Built-in reference voltage supply
• Built-in analog loop back test mode
• Differential type analog output. Directly drives a 600 line transformer
• Package options:
   20-pin plastic skinny DIP (DIP20-P-300-2.54-S1) (Product name : MSM7543RS)
                                                                                (Product name : MSM7544RS)
   24-pin plastic SOP (SOP24-P-430-1.27-K) (Product name : MSM7543GS-K)
                                                                    (Product name : MSM7544GS-K)
   26-pin plastic TSOP (TSOPII26/20-P-300-1.27-K) (Product name : MSM7543TS-K)
                                                                                (Product name : MSM7544TS-K)


Pinout

Connection Diagram


Specifications

Symbol
Parameter
Conditions
Limits
Unit
VDD
 Power Supply Voltage
-
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 MSM7543 and MSM7544 are single-channel CODEC CMOS ICs for voice signals ranging from 300 to 3400 Hz. These devices contain filters for A/D and D/A conversion.

Designed especially for a single-power supply and low-power applications, these MSM7544 are optimized for telephone terminals in digital wireless systems, ISDN terminals, and digital PBXs.

The MSM7543 and MSM7544 use newly-designed operational amplifiers to keep small current deviations caused by power voltage fluctuations.

The MSM7544 use the same transmission clocks as those used in the MSM7508B and MSM7509B.The analog output signal, which is of a differential type and can drive a 600 W load, can directly drive a handset receiver.




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