Datasheet > SC14408

SC14408

更新时间： 2024-09-29 22:43:27

品牌	Logo	应用领域
美国国家半导体 - NSC		手机
页数	文件大小	规格书
5页	98K
描述
Complete Baseband Processor for DECT Handsets

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中文翻译

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数据手册

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SC14408 数据手册

May 2001

V 1.0

SC14408

Complete Baseband Processor for DECT Handsets

General Description

I Embedded 16 bit CompactRISC^TMMicro Controller.

(CR16B) with programmable clock speeds.

I 384 kbyte Flash.

The SC14408 is a CMOS chip optimized to handle all the

audio, signal and data processing needed within a DECT

(1.9GHz) or in the 2.4GHz ISM digital band handset. An

ADPCM transcoder, a very low power CODEC and Ana-

log Frontend is integrated. Direct connections towards mi-

crophone and a (dynamical) loudspeaker are provided.

Duplex quality handsfree operation is integrated.

I ACCESSBUS^TMor MICROWIRE^TMinterfaces

I 6 kilobyte on-chip Data Memory.

I One full duplex ADPCM transcoder.

I On-chip 14-bit linear CODEC.

I 14 upto 44 dB gain differential microphone input buffer.

I 80 W loudspeaker driver.

The SC14408 is designed to fit to any radio design.

I Software controlled gain on audio input and output.

I Peak hold ADC for RSSI measurement.

I Five general purpose inputs can be multiplexed on an

8 bit ADC with selectable ranges.

I On-chip dedicated TDMA instruction co-processor

which supports DECT and ISM-bands providing 1.152

Mb/s, 1.024 Mb/s, 0.576 Mb/s, 0.512 Mb/s, 0.288 Mb/s

and 0.256 Mb/s.

A dedicated TDMA controller handles all physical layer

slot formats and radio control.

National Semiconductors standard CompactRISC^TM

CR16B 16 bit microcontroller takes care of all the higher

protocol stack.

Features

I Seven programmable control signals for radio front

end.

I Integrated DECT Baseband transceiver optimized for

GAP handsets according to ETS 300 175-2, 175-3 &

175-8.

I Two on board low drop voltage regulators with 2.5V and

3.0- 3.8V (with external resistors the voltage can be de-

termined) output.

I 2V upto 3.6V battery input with onboard step up con-

verter.

I Advanced battery management unit

I Very low power in active and paging mode.

I Full and double slot, protected and unprotected B-

fields.

I Duplex quality handsfree operation.

I Tone generator. Tones consisting of 3 frequencies can

be programmed

I Linear PCM interface for external codec.

I ISM band support with 8/9 x 10.368 Mc xtal = 9.216 Mc

I On chip LCD controller (6X30 segments)

Note: ACCESSBUS^TM, MICROWIRE^TMand CompactRISC^TMare trade-

marks of National Semiconductor Corporation.

________________________________________________________________________________________________

System Diagram

www.national.com

12 3 4 5

中文翻译

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与SC14408相关器件

型号	品牌	获取价格	描述	数据表
SC14408B80VD	NSC	获取价格	Complete Baseband Processor for DECT Handsets
SC14408B80VDX	NSC	获取价格	暂无描述
SC14408B80VV	NSC	获取价格	Complete Baseband Processor for DECT Handsets
SC14408B80VVX	NSC	获取价格	暂无描述
SC14408C128VV	NSC	获取价格	IC,RF/BASEBAND CIRCUIT,CMOS,QFP,80PIN,PLASTIC
SC-1441	ETC	获取价格	CRYSTAL CLOCK OSCILLATORS
SC14420CQ	TI	获取价格	TELECOM, CELLULAR, BASEBAND CIRCUIT, PQFP80, PLASTIC, QFP-80
SC14422	NSC	获取价格	Complete Baseband Processor for DECT Base Stations
SC14422DRVJG	TI	获取价格	TELECOM, CORDLESS, BASEBAND CIRCUIT, PQFP100, LQFP-100
SC14422DVJG	TI	获取价格	TELECOM, CORDLESS, BASEBAND CIRCUIT, PQFP100, LQFP-100

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