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PEF7274

Features: • 4 full duplex ADPCM Voice Coders• 16/24/32/40 kbit/s compression rate• CCITT G.726, G.721 compliant• Compression rate individually programmable during operation• Cascadable for PCM-8 Systems• Parameterizable Echosupression• Programmable tone ge...

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SeekIC No. : 004459505 Detail

PEF7274: Features: • 4 full duplex ADPCM Voice Coders• 16/24/32/40 kbit/s compression rate• CCITT G.726, G.721 compliant• Compression rate individually programmable during operation&#...

PEF7274 Data Sheet

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Part Number:
PEF7274
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: 2025/12/28

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Product Details

Description



Features:

• 4 full duplex ADPCM Voice Coders
• 16/24/32/40 kbit/s compression rate
• CCITT G.726, G.721 compliant
• Compression rate individually programmable during operation
• Cascadable for PCM-8 Systems
• Parameterizable Echosupression
• Programmable tone generation
• A-Law, -Law or 16 bit linear operation
• Pprogrammable FAX/Modem-tone detection,compliant to G.164
• Optional Artificial Echo Loss compliant to ETSI ETS 300 175
• Stand-alone operation in PCM-4 Systems without microcontroller
• A-law or -law default set per pin strapping
• 2 PCM-Interfaces 1.536, 2.048 or 4.096 MHz providing 12 to 64 time slots
• Frame Strobe Signals for standard codec filters, long frame and short frame timing
• Serial Microcontroller Interface
• DECT synchronization clock
• JTAG Boundary Scan compliant to IEEE 1149.1
• Sub-micron CMOS Technology
• P-MQFP-44 Package


Specifications

Parameter
Symbol
Limit Values
Unit
Voltage on any pin with respect to ground
VS
0.3 to VDD+0.3
V
Maximum voltage on any pin
Vmax
7
V
Ambient temperature under bias PEB
PEF
TA
TA
0 to 70
40 to 85
Storage temperature
Tstg
65 to 125

Note: Stresses above those listed here may cause permanent damage to the device.Exposure to absolute maximum rating conditions for extended periods may affect device reliability.




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