Introduction Semiconductor's wireless product portfolio includes

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AMIS-50050: Spread Spectrum Baseband Controller
Introduction
Semiconductor's wireless product portfolio includes AMIS-50050 spread spectrum baseband controller. Semiconductor's AMIS-5005x products simplify design direct sequence spread spectrum radios. They contain baseband circuitry needed implement radio, thus providing economical solution extensive digital hardware requirements high performance spread spectrum radios. AMIS-50050 power device optimal portable battery powered applications. utilizes 3.3V power supply interfaces microprocessor logic.
Features
power with user controlled `shutdown' modes 3.3V (+/-10 percent) Narrow band spread spectrum operation, independently selectable transmit receive Performs baseband functions required implementation direct sequence spread spectrum used radio frequency band User programmable transmission protocol with pass through packetization formatting Generic microprocessor interface Full half duplex operation High process gain 2047chips/bit) with data rates from 100bps 4Mbps Independent transmit receive code generators Gold code -chip Barker code options Programmable preamble lengths faster acquisition when there been recent transmission reception Byte-wide transmit receive FIFOs error checking receiver addressing Optional data scrambling Support for: binary phase shift keying (BPSK); differential binary phase shift keying (DBPSK); quadrature phase shift keying (QPSK); differential quadrature phase shift keying (DQPSK) Continuous tracking feature transferring multiple packets data high data rates without reacquiring synchronized packet
AMIS-50050 power device optimal portable battery powered applications. utilizes 3.3V power supply interfaces microprocessor logic. AMIS-50050 consists microprocessor interface full duplex transmit/receive message processor circuit. Included AMIS-50050 message transmit processor circuits data scrambler, packet generator, generator, pseudonoise (PN) code generator, modulation mode formatter. AMIS-50050 message processor receive circuits include receive code generator, receive synchronization tau-dither tracking loop, integrate dump control, data descrambler, packet decoder, checker, demodulator, signal strength indicator. Each transmit receive code generator consists 11-bit generators, allowing selection code, code, "Gold code" combination codes. Semiconductor's AMIS-50050 uses separate transmit receive 64MHz VCOs, which allow fully independent transmit receive operations. Semiconductor's wireless interface generic microprocessor programming data transfer modulator/demodulator radio transmission medium. 8530 operation HDLC protocol emulated message packetization error checking. packetization selected data transmitted received from host. AMIS-50050 high performance part, capable chipping rates 64Mchips/second transmit receive modes. This results maximum data rate 2Mbps using QPSK DQPSK modulation code length maximum data rate 1Mbps achieved using BPSK DBPSK modulation code length lower chipping rates capable generating code lengths 2047 chips. lowest possible chipping rate 300Hz. flexibility design allows optimal combination transmitted power, system process gain, system bandwidth rate order achieve reliable communication channel with minimum interference other adjacent channels co-channel users.
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Block Diagram
Figure AMIS-50050 Block Diagram
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Package Availability
68-pin PLCC
Figure 68-pin PLCC Package Assignments
Table 68-pin PLCC Package 68-pin PLCC Height 5.08mm Body Size 25mm Lead Spacing 1.27mm
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
64-pin PQFP/TQFP
Figure 64-pin PQFP/TQFP Package Assignments
Table 64-pin PQFP/TQFP Package Lead PQFP Height 3.0mm Lead TQFP Height 1.2mm Body Size 10mm Lead Spacing 0.50mm Body Size 14mm Lead Spacing 0.80mm
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Table Descriptions Name Type AGND1 Analog GND1 Ground VDD1 OSC1 OSC2 PLL[3:0] TXD0 TXD1 EPOCH1 GND2 EXT[3:0] VDD2 EXT[7:4] EXT[9:8] RESET GND3 DATA[7:0] ADDR[6:0] VDD3 GND4 DUMP EPOCH2 RCVRY TEST RXD1 RXD0 VREFD AGND2 VCO2 AVDD2 DACOUT1 DACOUT0 RBIAS VREF AGND3 RSSI1 RSSI2 AVDD3 AVDD1 VCO1 Input Padosc Output Output Output Output Output Ground Output Output Output Output Input Input Input Input Ground BIDirection Input Ground Output Output Output BIDirection Input Analog Analog Analog Analog Analog Input Analog Analog Output Analog Output Analog Input Analog Input Analog Analog Input Analog Input Analog Analog Analog
Functional Description
Crystal oscillator external reference input, this input divided OSCDIV generate reference clock transmit Xtal output Off-chip programming; Bit0, Enable1, Bit1; Sclk, Bit2, Enable0, Bit3, Sdata Transmit data output Transmit data output, output clock Transmit generator Epoch signal, PLCC package only) Transmit generator output, internally disabled (PMR External control port (lower bits), user defined functions radio control External control port (upper bits), user defined functions radio control External control port (upper bits), user defined functions radio control PLCC package only) Active high initiates interrupt microprocessor Active sets registers standby states Active selects chip reading writing interface Active initiates read operation interface Active initiates write operation interface interface data interface address
Integrate dump control logic output Receive Generator Epoch signal PLCC package only) Receive generator output Clock recovery input narrow band mode, track-on (active high) output spread spectrum mode indicates external circuitry that code locked tracking received code manufacturing test only should tied ground normal operation Receive data input mode output clock external shift register Receive data input Reference voltage integrate dump comparators switches Receive control voltage output Receive output during TRACK operation Note: DACOUT0 DACOUT1 provided event that separate gain control necessary SLIP TRACK operation Receive output during SLIP operation Current reference DACs analog buffers nominal resistor value AGND3 Reference voltage DACs value mid-scale between Analog input received signal strength indicator from receiver, range zero VREF (full scale internal ADC) Analog input received signal strength indicator from receiver, range zero VREF (full scale internal ADC) This input usable "SLIP" mode.
Transmit voltage control output
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Electrical Specifications
Absolute Maximum Ratings
Table Absolute Maximum Ratings Parameter Min. VDD/AVDD Input voltage, pins Input current, pins Storage temperature Lead temperature -0.3 -0.3
Max. VDD+0.3
Units
seconds
Note: Stresses beyond those listed under "Absolute Maximum Ratings" cause damage device. This stress rating only functional operation device these, other conditions beyond those indicated operational sections this specification implied. Exposure absolute maximum rating conditions extended periods affect device reliability.
Operational Range
Table Operational Range Symbol Parameter VDD/AVDD Supply voltage Operating temperature
Min.
Typ.
Max.
Units
Electrical Operating Characteristics
Table Characteristics Symbol Parameter OSCI Vil* OSCI Vih* Input voltage Input high voltage Output voltage Output high voltage Input leakage Output leakage Input voltage Input high voltage 0.9VDD
Conditions
Min. 0.7VDD
Max. 0.25VDD
Units
-1mA VDD/AVDD impedance VDD/AVDD
+/-10 +/-10 0.1LVDD
Note: These levels needed OSCI input being driven external clock.
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Characteristics
Table Characteristics Symbol Parameter Zero DIFF STEP DIFF GAIN RXDRES GAIN RXDRES
Min.
Typ. 10.3
Max. +/-200
Units MHz/V
current source, least significant current with input current source, with input differential non-linearity first step least significant full scale differential non-linearity gain RXD0/1 resistance Comparator input voltage Comparator input high voltage
+/-100
+/-155 +/-0.1 1.56 +/-0.3
Note: Specified typical values from characterization 25oC, 3.3V AVDD, VDD. means full scale. Source sink STEP1 includes offset. Successive steps defined ADC/LSB value.
Characteristics
Table Characteristics Symbol Conditions ISLEEP ITXS IRXS IALL IPIN ITXON1 ITXON2 IRXON Sleep mode standby standby Full duplex Full duplex with disabled
Max.
Units
Notes: tests done AVDD 3.6V, 1Mbps BPSK, 64MHz chipping, internal transmit code mixing Gold codes, 50pF load using indicated condition.
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Microcontroller Interface Read/Write Timing
Read Timing Characteristics
Table Read Timing Characteristics Symbol Parameter Tcsd Tcsdz Trdz Tcsur Tchr Tadrsur Read chip select valid data Read valid data Chip select high data disable Read high data disable Read chip select setup Read chip select hold Read address setup
Min.
Max.
Units
Note: Figure Read Timing Diagram
Write Timing Characteristics
Table Write Timing Characteristics Symbol Parameter Tcsuw Tchw Tadrsuw Tadrh Tdsu Write chip select setup Write chip select hold Write address setup Write address hold Write data setup time Write data hold
Max.
Units
Note: Figure Write Timing Diagram
Figure Microcontroller Read Timing
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
Figure Microcontroller Write Timing
Figure Input Test Waveforms Measurement Levels
Figure Output Test Load
Semiconductor Sept. www.amis.com
AMIS-50050: Spread Spectrum Baseband Controller
AMIS-50050 Ordering Codes
Table Ordering Codes Device Number 08906-002-XTP -XTD) 08906-003-XTP -XTD) 08906-004-XTP -XTD) 08906-808-XTP -XTD)
Tape Reel Tube/Tray
Package Lead PLCC Lead PQFP Lead TQFP Lead TQFP (green/RoHS)
Company Product Inquiries
more information about Semiconductor, technology product, visit site http://www.amis.com North America Tel: +1.208.233.4690 Fax: +1.208.234.6795 Europe Tel: 55.33.22.11 Fax: 55.31.81.12
Devices sold AMIS covered warranty patent indemnification provisions appearing Terms Sale only. AMIS makes warranty, express, statutory, implied description, regarding information forth herein regarding freedom described devices from patent infringement. AMIS makes warranty merchantability fitness purposes. AMIS reserves right discontinue production change specifications prices time without notice. Semiconductor's products intended commercial applications. Applications requiring extended temperature range, unusual environmental requirements, high reliability applications, such military, medical life-support life-sustaining equipment, specifically recommended without additional processing AMIS such applications. Copyright ©2006 Semiconductor, Inc.
Semiconductor Sept. www.amis.com

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