psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 16
psb21391
Manufacturer Part Number
psb21391
Description
Siemens Codec With Upn Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21391.pdf
(253 pages)
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Part Number:
PSB21391
Manufacturer:
infineon
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Data Sheet
• FIFO buffer with 64 bytes per direction and programmable FIFO thresholds for
• D-channel access control
• Implementation of IOM-2 MONITOR and C/I-channel protocol to control peripheral
• Realization of layer 1 state machine in software possible
• Watchdog timer
• Programmable reset sources
• Test loops and functions
Codec part
• Applications in digital terminal equipment featuring voice functions
• Digital signal processing performs all CODEC functions
• Fully compatible with the ITU-T G.712 and ETSI (NET33) specification
• PCM A-Law/ -Law (ITU-T G.711) and 8/16-bit linear data; maskable codec data
• Flexible configuration of all internal functions
• Three analog inputs for the handset microphone, the speakerphone and the headset
• Two differential outputs for a handset earpiece (200 ) and a loudspeaker (50
• Flexible test and maintenance loopbacks in the analog front end and the digital signal
• Independent gain programmable amplifiers for all analog inputs and outputs
• Full digital speakerphone (SCOUT-PX PSB 21393 only) and loudhearing support
• Enhanced voice data manipulation for features like:
• Two transducer correction filters
• Side tone gain adjustment
• Flexible DTMF, tone and ringing generator
• Direct and indirect CRAM access
efficient transfer of data packets
devices
5V power supply, 25
processor
without any external components (speakerphone test and optimization function is
available)
- Three-party conferencing
- Voice monitoring
for 3.3V power supply)
6
PSB 21391
PSB 21393
2001-03-07
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