Details, datasheet, quote on part number: PSB7280B
DatasheetDownload PSB7280B datasheet


Features, Applications
Product rochure for JADE Joint Audio Decoder Encoder PSB 7280

The PSB is a device which implements voice compression algorithms defined in the ITU-TS G.711, G.722 and the G.728 Recommendation. It fits best into every application where audiocompression is needed. 1. Potential applications

ISDN Videophones Video Conference Systems Corporate Network voice concentrators, multiplexers and gateways Data-over-voice and Voice-over-data terminals Networks (e.g. LANs) for packetized voice Digital Added Main-Line (DAML) & Digital circuit Multiplication Equipment (DCME) Voice storage e.g. in PC based applications

G.711/G.722/G.728 Compression/Decompression for one audio channel Programmable G.711/G.722/G.728 modes with mixed modes of operation (e.g. G.722 in receive and G.728 in transmit direction) A/ law recognition in G.711 mode (according to G.725 Appendix I) Digital sampling rate conversion (16kHz-8kHz) for G.722 audio with 8kHz Codec (bandwidth reduced to 3.4 kHz) Accepts/outputs uncompressed audio in 16-bit linear format Inband controlled H.221 oriented audio protocol,. e.g. for direct serial connection to Videotec (VCP of 8x8 Inc., formerly IIT Inc.) Access to audio channels and HDLC/serial transparent data controllers from DSP or an external Host. Programmable on-chip PLL for internal clock generation from ISDN low frequency clock All Program and Data memory on-chip Flexible interfaces (e.g. IOM-2/PCM, serial audio interface, parallel 8-bit host interface, external memory interface) Supply voltage 0,5 m CMOS technology

6. Documentation (Please contact our sales office for details) Date of issue/version Preliminary Data Sheet V2.2 8/96 Perliminary Delta Sheet V2.2 8/96 Application Sheet V2.1 7/96 Technical Audit Report AU-531, volume 1 1/97 Ics for Video Communications 3/96 Per Video um die Welt 5/96 Video Communication PC 5/95 Worldwide video communication for analog 1/96 and digital telephon networks Errata sheet V2.1-2.2 8/96 Codec Application Note V1.1-1.4 8/95 Video Ref. Board (DVC5) Package 1/96 Preliminary Version 1.1 7. Development and support Tools Availability Video Ref. Board SIPB 7280 VISO Ref. Board SIPB 7285 8. Applications Video Conferencing


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