PMB27202 [INFINEON]
Telecom Circuit, 1-Func, PQFP128, PLASTIC, TQFP-128;
| 型号： | PMB27202 |
| 厂家： | 
Infineon |
| 描述： | Telecom Circuit, 1-Func, PQFP128, PLASTIC, TQFP-128 电信 电信集成电路 |
| 文件： | 总1页 (文件大小：16K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DECT Digital Circuit for Handhelds
PMB 27201/2
General Description
Type
Package
P-TQFP-128-1 (SMD)
The DECT-Digital Circuit for Handhelds is one of the devices
of the Siemens chip set for the digital cordless telephone
specified by the DECT standard.
PMB 27201/2
Features
The device designed for cordless handhelds is a highly
integrated circuit and realizes most of the system functions
needed in such an equipment.
• 8-bit µC with integrated ROM/RAM
• Integrated LCD controller
• 32-kbit/s ADPCM-transcoder
• Digital filtering and gain stages
• Burst mode controller
• Power-down mode programmable
• Low voltage detection
• Power supply 3.0 … 5.1 V
• Low power consumption
• Advanced low power CMOS technology
• Encryption
• PMB 27201: 64 K ROM, 4 K RAM
• PMB 27202: 48 K ROM, 2 K RAM
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 and feature
LCD controller.
The device is fabricated using Siemens advanced CMOS
technology and will be available in a 128 pin package.
Further baseband controllers are PMB 27221 (romless
version with 4 K RAM).
Data Port
(32 kbit/s)
Crystal 10.368 MHz
Timers /
RF-Interf.
Synchro-
nization
Clocks
DSP
Input Data RAM
Control RAM
Serial In
CRC
De-
scramble
Interpolation
Decimation
ADPCM
Trans-
coder
Speech Data
(PMB 2920)
Codec
Filter
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
RSSI
Battery
Control
Internal ROM
48 kBytes
Port X
Keypad
Port Y
Keypad
Port 0
Addit.
D
A
Timers
2
8-Bit CPU
LCD-Drivers
Interrupts
I C Bus
Internal RAM
2 kBytes
Watchdog
Microcontroller Unit
ITB08460
Block Diagram PMB 27202
Siemens Aktiengesellschaft
1
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