SC14408C80VD National Semiconductor, SC14408C80VD Datasheet

SC14408C80VD

Manufacturer Part Number

SC14408C80VD

Description

Processor, Complete Baseband Processor for DECT Handsets

Manufacturer

National Semiconductor

Datasheet

1.SC14408C80VD.pdf (5 pages)

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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 Ana-

log Frontend is integrated. Direct connections towards mi-

crophone 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 CompactRISC

CR16B 16 bit microcontroller takes care of all the higher

protocol stack.

Features

I Integrated DECT Baseband transceiver optimized for

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

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

I Advanced battery management unit

I Very low power in active and paging mode.

System Diagram

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

175-8.

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

termined) output.

verter.

________________________________________________________________________________________________

I Embedded 16 bit CompactRISC

I 384 kbyte Flash.

I ACCESSBUS

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

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

I On-chip dedicated TDMA instruction co-processor

I Seven programmable control signals for radio front

I Full and double slot, protected and unprotected B-

I Duplex quality handsfree operation.

I Tone generator. Tones consisting of 3 frequencies can

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

marks of National Semiconductor Corporation.

(CR16B) with programmable clock speeds.

8 bit ADC with selectable ranges.

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.

end.

fields.

be programmed

loudspeaker driver.

, MICROWIRE

or MICROWIRE

and CompactRISC

interfaces

Micro Controller.

V 1.0

May 2001

www.national.com

are trade-

Related parts for SC14408C80VD

SC14408C80VD Summary of contents

Page 1

... 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 chip LCD controller (6X30 segments) TM Note: ACCESSBUS , MICROWIRE marks of National Semiconductor Corporation. 1 May 2001 V 1.0 TM Micro Controller. TM interfaces TM ...

Page 2

Pin type definitions PD7/P3[ PD1/P3[1] 3 PD5/P3[5] 4 PD4/P3[4] 5 PD3/P3[3] 6 PD2/P3[2] 7 VDD 8 VSS 9 RFCLK 10 VDDRF VSSRF 11 Xtal1 12 CAP 13 AVS 14 AVD 15 16 RSSI RDI 17 CMPREF 18 ...

Page 3

P2[7..0] P1[7..0] P0[7..0] PWM UART ACCESS DMA BUS1 ACCESS ICU BUS2 LCD DRIVER DSP RAM HANDS FREE CODEC DSP AFE 80 HEADSET FIGURE 1. SC14408 Block diagram CR16B CompactRISC 16 bit micro controller sclk 16 bits System Bus Interface 8 ...

Page 4

Package information FIGURE 2. 80 pins Quad Flat Pack. NS Package: vje80a , 4 www.national.com ...

Page 5

... Product status definitions National Semiconductor B.V reserves the right to make changes without notice to any products herein to improve reliability, function or design. National does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights, nor the right of others. ...

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