27201/2 General Description DECT-Digital Circuit Handhelds device

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27201/2 General Description DECT-Digital Circuit Handhelds device

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DECT Digital Circuit Handhelds
27201/2
General Description DECT-Digital Circuit Handhelds devices Siemens chip digital cordless telephone specified DECT standard. device designed cordless handhelds highly integrated circuit realizes most system functions needed such equipment. circuit contains digital signal processor, 8-bit 80C51-compatible microcontroller burst mode controller. Furthermore circuit handles interfacing different components DECT chipset feature controller. device fabricated using Siemens advanced CMOS technology will available package. Further baseband controllers 27221 (romless version with RAM).
Type 27201/2 Features
Package P-TQFP-128-1 (SMD)
8-bit with integrated ROM/RAM Integrated controller 32-kbit/s ADPCM-transcoder Digital filtering gain stages Burst mode controller Power-down mode programmable voltage detection Power supply power consumption Advanced power CMOS technology Encryption 27201: ROM, 27202: ROM,
Data Port kbit/s)
Crystal 10.368
Clocks Input Data
Timers RF-Interf. Serial
Synchronization Descramble TDMA Data 1.152 Mbit/s Scramble
Speech Data (PMB 2920)
Interpolation Decimation
Codec Filter
ADPCM Transcoder
Control
Output Data Serial Control Encryption Decryption Power Control
Burst-Error-Concealment Tone Generation
Burst-Mode-Logic
Internal kBytes 8-Bit Internal kBytes
Timers
Port Keypad
Port Keypad LCD-Drivers Interrupts
Port Addit.
RSSI Battery Control
Microcontroller Unit
Watchdog
ITB08460
Block Diagram 27202
Siemens Aktiengesellschaft

27201/2 General Description DECT-Digital Circuit Handhelds device

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