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MFG:NSC  Package Cooled:QFP  

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Part Number: SC14428

 

MFG: NSC

Package Cooled: QFP

 

Description: The SC14428 is a CMOS IC optimized to handle all the audio, signal and data processing needed within a...


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SC14428 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 connections towards PSTN or ISDN line interface are possible.

The SC14428 has a programmable Generic DSP optimized 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 standard CompactRISCTM CR16C microprocessor takes care of all the higher protocol stack.

SC14428 Maximum Ratings

Parameter Description Conditions Min Max Units
Vbat1_max Max Battery supply voltage VBAT1     5.5 V
Vbat2_max Max Battery supply voltage VBAT2     5.5 V
Ibat1_max Max negative current into VBAT1     300 mA
Ibat2_max Max negative current into VBAT2     300 mA
Ivddiotot_max Max total current into VDDIOs     90 mA
Ivddio_max Max current through I/O pins     20 mA
Vdd_max Max Core supply voltage
(VDD-VSS / AVD-AVS / AVD2-AVS / VDDRF-VSSRF)
    2.0 V
Vddiof_max Max I/O Supply voltage for devices with FLASH
(VDDIO-VSS)
Note2   3.0 V
Vddio_max Max I/O supply voltage for devices without FLASH
(VDDIO-VSS)
Note3   3.6 V
Vldo1_ctrl_max Max voltage on pin LDO1_CTRL Note4 VSS-0.3 5.25 V
Vldo2_ctrl_max Max voltage on pin LDO2_CTRL Note4 VSS-0.3 5.25 V
Vpon_max Max voltage on pin PON   VSS-0.3 2.85 V
Vcharge_max Max voltage on pin CHARGE   VSS-0.3 2.85 V
Vbat3_max Max voltage on pin VBAT3   VSS-0.3 2.85 V
Vadc1_max Max voltage on pin ADC1   VSS-0.3 2.85 V
Vrdidig_max ax voltage on pin RDI digital mode (max 3.6V)   VSS-0.3 VDDIO+0.3 V
Vrdiana_max Max voltage on pin RDI analog mode   VSS-0.3 2.0 V
Vdig_max Max voltage on digital Input pins (max 3.6V)   VSS-0.3 VDDIO+0.3 V
Vana_max Max voltage on any other input (incl analog pads)   VSS-0.3 2.0 V
Iprot_max Max current through prot. diodes on any pin to VDDIO     100 mA
Iprotcid_max Max current through prot. diode pins CID+/- to AGND     1.0 mA
Iprotmic_max Current through prot. diode pin MIC+/- to AGND     2.4 mA
Iprotpon_max Max current through prot. circuit of PON pin. Note5   0.6 mA
Iprotcharge_max Max current through prot. circuit of CHARGE pin. Note5   0.6 mA
Iprotvbat3_max Max current through prot. circuit of VBAT3 pin. Note5   0.6 mA
Iprotadc1_max Max current through prot. circuit of ADC1 pin.     0.6 mA
Tstorage Storage temperature   -65 +150 °C
Ppackage Package power dissipation @ 25 °C     500 mW
Ilu Latch-up current all pins according JEDEC 78 TA = 65 °C   100 mA
Ilu_rdi_25 Latch-up current RDI pin TA = 25 °C   100 mA
Ilu_rdi_60 Latch-up current RDI pin TA = 65 °C   50 mA
Vesd_mm ESD voltage according to man machine model     100 V
Vesd_hbm ESD voltage according to human body model     1000 V

SC14428 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 programmable interrupts
Full duplex UART and MICROWIRETM interface.
SPITM 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.

SC14428 datasheet

SC14428
PDF/DataSheet Download

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