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PMB27251 PDF预览

PMB27251

更新时间: 2024-11-14 20:02:27
品牌 Logo 应用领域
英飞凌 - INFINEON 电信电信集成电路
页数 文件大小 规格书
1页 16K
描述
Telecom Circuit, 1-Func, PQFP128,

PMB27251 技术参数

生命周期:Obsolete包装说明:,
Reach Compliance Code:unknownHTS代码:8542.39.00.01
风险等级:5.7JESD-30 代码:S-PQFP-G128
功能数量:1端子数量:128
封装主体材料:PLASTIC/EPOXY封装形状:SQUARE
封装形式:FLATPACK认证状态:Not Qualified
标称供电电压:5 V表面贴装:YES
电信集成电路类型:TELECOM CIRCUIT端子形式:GULL WING
端子位置:QUADBase Number Matches:1

PMB27251 数据手册

  
DECT Digital Circuit for Basestations  
PMB 27251/2  
General Description  
Type  
Package  
P-TQFP-128-1 (SMD)  
The DECT-Digital Circuit for Basestations is one of the  
devices of the Siemens chip set for the digital cordless  
telephone specified by the DECT standard.  
PMB 27251/2  
Features  
The device designed for single cordless fixed stations is a  
highly integrated circuit and realizes most of the system  
functions needed in such an equipment. The circuit contains  
a digital signal processor, an 8-bit 80C51-compatible  
microcontroller and the burst mode controller. Furthermore  
the circuit handles the interfacing of the different components  
of the DECT chipset.  
• 8-bit µC with integrated ROM/RAM  
• 32 bit/s ADPCM-transcoder  
• Digital filtering and gain stages  
• Echocancellation  
• Burst mode controller  
• Internal calls possible  
• Power supply voltage: 5 V ± 5 %  
• Low power consumption  
• Advanced low power CMOS technology  
• Encryption  
The device is fabricated using Siemens advanced CMOS  
technology and wilI be available in a 128 pin package.  
• PMB 27251: 6 K RAM  
• PMB 27252: 64 K ROM, 4 K RAM  
Data Port  
(32 kbit/s)  
Crystal 20.736 MHz  
Timers /  
RF-Interf.  
Synchro-  
nization  
Clocks  
DSP  
Input Data RAM  
Serial In  
CRC  
De-  
scramble  
Control RAM  
Interpolation  
Decimation  
ADPCM  
Trans-  
coder  
Speech Data  
(PMB 2920)  
Codec  
Filter  
Internal Switch  
TDMA Data  
1.152 Mbit/s  
Output Data RAM Serial Out  
Control RAM CRC  
Scramble  
Burst-Error-Concealment  
Tone Generation  
Encryption  
Decryption  
Burst Mode Logic  
Power  
Control  
Internal ROM  
64 KBytes  
Port X  
Keypad  
Port 0  
Addit.  
D
A
RSSI  
2
8-Bit CPU  
Timers  
Tonedect.  
I C Bus  
Internal RAM  
4 KBytes  
Interrupts  
Watchdog  
Microcontroller Unit  
ITB08461  
Block Diagram PMB 27252  
Siemens Aktiengesellschaft  
1

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