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參數(shù)資料
| 型號(hào)： | SC14428 |
| 廠商： | National Semiconductor Corporation |
| 元件分類(lèi)： | 基帶處理器 |
| 英文描述： | Baseband Processor for FP & PP DECT and WDCT |
| 中文描述： | 基帶處理器的計(jì)劃生育 |
| 文件頁(yè)數(shù)： | 1/6頁(yè) |
| 文件大?。?/td> | 113K |
| 代理商： | SC14428 |
S
2004 National Semiconductor Corporation
www.national.com
ADVANCED INFORMATION
March 2004
SC14428
Baseband Processor for FP & PP DECT and WDCT
1.0 General description
.The SC14428 is a CMOS IC optimized to handle all the
audio, signal and data processing needed within a DECT
(1.9 GHz) or 2.4GHz ISM digital band base stations and
handsets.
A four channel ADPCM transcoder, a very low power 16 bit
Codec and Analog Frontend are integrated. Direct connec-
tions towards PSTN or ISDN line interface are possible.
The SC14428 has a programmable Generic DSP opti-
mized for telecom applications.
The SC14428 is designed to fit to any radio interface. A
dedicated TDMA controller handles all physical layer slot
formats and radio control.
National
Semiconductor’s
CR16C microprocessor takes care of all the higher protocol
stack.
standard
CompactRISC
TM
2.0 Features
■
Complies with DECT ETS 300 175-2,3 & 8 SWAP-CA
V1.3 Rev 1.3 20000616
■
1.8Volt operating voltage with 2.65V (typ) IO pads.
■
Two chip low drop voltage regulators
■
16 bit CompactRISCTM CR16C Microprocessor with
programmable clock speeds up to 20.736 MHz.
■
Four channel DMA controller.
■
Serial Debug interface, Nexus Class-1 compliant.
■
16kbyte shared, 6kbyte non shared RAM
■
4kbyte shared RAM for TAM DSP
■
Versions with ROM, FLASH and data FLASH
■
Programmable 16 bits system bus interface with bus
master and slave operation.
■
User programmable GENeric DSP with fixed telecom
processing routines.
■
Four full duplex 32 kbits/sec ADPCM transcoder.
■
On-chip Dedicated Instruction Processor (DiP) for all
TDMA based events, which supports DCT 1.152MHz,
0.576MHz and 0.288MHz data rates.
■
ISM band and DECT with 9.216, 10.368 and 13.824 MHz
xtals.
■
Protected and unprotected full and double slot B-fields
■
Flexible 1.152 Mbit/sec three wire interface to radio front
synthesizer.
■
One 16-bit linear CODEC
■
Selectable Fast Antenna Diversity operation or RSSI
measurement with peak hold ADC.
■
Three input general purpose 8 bit ADC
■
Two general purpose timers and watch dog timer.
■
Two Capture timers for frequency measurement for e.g.
metering, ringing and call progress tone detection.
■
Three general purpose I/O ports with two edge/level pro-
grammable interrupts
■
Full duplex UART and MICROWIRE
TM
interface.
■
SPI
TM
interface (Master/Slave).
■
Flexible 8 kHz synchronous Serial interface to external
codecs and ISDN interface circuits.
■
Three programmable chip selects
■
Integrated opamp for caller-id
■
(80 pin PFQP and 80,)128,160 pins TQFP packages.
3.0 System Diagram
CompactRISC
TM
is a trademark of National Semiconductor Corporation
SC14428
ISDN OR
DATA
PSTN
INTERFACE
PSTN
INTERFACE
SC14428
CID
HANDSFREE
ISDN
PSTN1
PSTN2
SC14428
SC14428
SC14428
SC14428
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