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SC14408

National Semiconductor
Part Number SC14408
Manufacturer National Semiconductor
Description Complete Baseband Processor for DECT Handsets
Published Apr 8, 2005
Detailed Description SC14408 May 2001 V 1.0 SC14408 Complete Baseband Processor for DECT Handsets General Description The SC14408 is a CMOS...
Datasheet PDF File SC14408 PDF File

SC14408
SC14408

Overview
SC14408 May 2001 V 1.
0 SC14408 Complete Baseband Processor for DECT Handsets General Description 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 Analog Frontend is integrated.
Direct connections towards microphone and a (dynamical) loudspeaker are provided.
Duplex quality handsfree operation is integrated.
The SC14408 is designed to fit to any radio design.
A dedicated TDMA controller handles all physical layer slot formats and radio control.
National Semiconductors standard CompactRISCTM CR16B 16 bit microcontroller takes care of all the higher protocol stack.
I Embedded 16 bit CompactRISCTM Micro Controller.
(CR16B) with programmable clock speeds.
I 384 kbyte Flash.
I ACCESSBUSTM or MICROWIRETM interfaces 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 Ω loudspeaker driver.
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.
I Seven programmable control signals for radio front end.
I Full and double slot, protected and unprotected Bfields.
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: ACCESSBUSTM, MICROWIRETM and CompactRISCTM are trademarks of National Semiconductor Corporation.
Features I Integrated DECT Baseband transceiver optimized for GAP handsets according to ETS 300 175-2, 175-3 & 17...


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