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| GSM Co-Processor for Advanced Features (GOLD-SX) PMB 2708 General Description The GOLD-SX is part of a complete chip set which covers all functions of a mobile radio for the Global System for Mobile communications, GSM. A mobile terminal which contains this chip set can meet all performance requirements set down in the Technical Specifications for GSM, PCN and PCS-1900. GOLD-SX is used for advanced features. The function of the GOLD-SX is dependent on its firmware. The first version of the GOLD-SX performs Half-Rate speech encoding including Voice Activity Detection (VAD) and Discontinuous Transmission (DTX), as well as Half-Rate speech decoding including Discontinuous Reception (DRX, Comfort Noise). The second version performs Enhanced Full-Rate speech coding including all the DTX functions as in Half-Rate speech coding. Features Firmware: The GOLD-SX is available in two versions with different mask programmed ROM code: * Half-Rate Codec (GOLD-SXH): - GSM Half-Rate Speech Codec (GSM 6.02, 6.06, 6.07, 6.20) - Voice activity detection, VAD (GSM 6.42) - Discontinuous transmission, DTX (GSM 6.41) - Comfort noise generation, DRX (GSM 6.22) Type Package PMB 2708_1-F (GOLD-SXH) P-TQFP-64-1 (SMD) PMB 2708_2-F (GOLD-SXE) P-TQFP-64-1 (SMD) - Serial data exchange with Half-Rate Channel Codec and voiceband unit on GOLD-SP - Serial data exchange with system simulator interfacing box (GSM 11.10) * Enhanced Full-Rate Codec (GOLD-SXE): - GSM Enhanced Full-Rate Codec (GSM 6.51, 6.53, 6.54, 6.60) - Voice activity detection, VAD (GSM 6.82) - Discontinuous transmission, DTX (GSM 6.81) - Comfort noise generation, DRX (GSM 6.62) - Serial data exchange with Enhanced Full-Rate Channel Codec and voiceband unit on GOLD-SP - Serial data exchange with system simulator interfacing box (GSM 11.10) Hardware: * DSP core of type SPCE (Siemens Signal Processor Core Enhanced) offering high performance (39 MIPS @ 39 MHz, 2.7 V) and current consumption (approx. 1.3 mA/MIPS) * 12 K Program ROM and 0.25 K RAM, 8 K Data ROM on-chip * PLL-based clock generation (13-MHz input) * Package: P-TQFP-64, 10 x 10 mm2, 0.50 mm pitch * 3-V supply voltage ( 10 %) XRAM 2K YRAM 2K Prog. ROM 12 K Prog. RAM 0.25 K Data ROM 8K Program Signal Processor Core Data 39 MHz PLL Clock Unit 13 MHz 9.75 MHz 6.5 MHz Block Diagram Test Select SIF 1 SIF 2 Bound. Scan to GOLD-SP to DAI Test Box ITB08488 Siemens Aktiengesellschaft 1 |
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