ASCell3911 ASCell3911 MHz, Band Transmitter with Burst Inter

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ASCell3911 ASCell3911 MHz, Band Transmitter with Burst Inter

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MHz, Band Transmitter with Burst Interference Resistant Protocol
ASCell3911
ASCell3911
MHz, Band Transmitter with Burst Interference Resistant Protocol
Preliminary Data Sheet
Data Sheet ASCell3911
Features
Supports triple band operation: Europe MHz-, Japan band. Designed conform 220, Ch.1 par.15 requirements. Robust FFSK transmission with highly stable frequency deviation. Provides packet oriented message transmission. Supports event-oriented single-message- status-oriented continuous-message- transmission. Includes transmission protocol encoding high reliability presence burst interferers (e.g. GSM). Maximum available power load. Wide supply range between current, typical available power. Provides automatic antenna tuning high resonant antennas. Supports clock external allows clock free total shut down whole system. Provides clock free system wake-up buttons well conventional wake-up Lowest standby current, typical <0,5 Wide operating temperature range from Only MHz) MHz) tolerance reference frequency required. Provides chip XTAL oscillator allows external reference frequency. Typically only XTAL, capacitors inductors externally required.
General Description
ASCell3911 power, triple band (868 MHz), single channel Filtered Frequency Shift Keying (FFSK) transmitter designed work remote control link together with ASCell3912 receiver system cell. ASCell3911 performs packet oriented message transmission, single message- continuos- message mode using special protocol ensure high reliability even presence strong pulsed interferers close adjacent bands like e.g. GSM. contains five line micro-controller (µC) interface configuration down-load, write data, support data clock- reset- signals operate highly efficient power up/down management including clock-free total shut-down whole transmitter system. also provides wake-up from clock free shut-down multiple buttons. external components ASCell3911 need only reference XTAL, capacitors inductors.
Applications
Key-less entry systems. Short-range packet oriented data transmission. Domestic remote control systems. Industrial remote control systems. Remote metering.
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Security applications alarm systems.
Rev. Jannuary 2001
Data Sheet ASCell3911
PAGND RFAVDD WAKEUP AGND XTAL
DVDD ENABLE DATA CLOCK MCCLK RES/TST DGND
ASCell3911
TSSOP-14
This pin-out preliminary will change real implementation! Figure Preliminary pin-out ASCell3911.
Functional Description
ASCell3911 direct modulated FFSK transmitter. Data transmission packet oriented, including burst interference resistant protocol encoder. block diagram ASCell3911 shown Figure Transmit data enters ASCell3911 packets interface. ASCell3911, data packets encoded burst interference resistant protocol encoder. Then data converted conversion unit block into pair analog base-band signals, representing frequency shift. pair low-pass filters smoothes transitions keep spectrum clean. Then modulation signal shifted quadrature converter with help signal carrier frequency directly Finally power amplifier provides programmable output power. multi-band, single channel synthesizer supports required signal. frequency reference synthesizer receiver control block interface, single-pin board XTAL oscillator (XO) available. overwritten CMOS clock signal, external frequency reference used. transmitter control block, containing sophisticated power up/down circuitry, which also allows clock-free lowpower standby, controls ASCell3911. wake-up transmitter (ASCell3911 configuration download ASCell3911, interface which also supports clock implemented.
Rev. Jannuary 2001
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Data Sheet ASCell3911
ASCell3911
RF-power RF-band
Quadrature up-converter I-mixer Driving amplifier RFPAGND
RF-power Tune
Smoothing filter
conversion Protocol encoder
wire interface
Antenna tuning
DATA ENABLE CLOCK
010110
Q-mixer
Smoothing filter
TX-control
Tune
RF-synthesizer Phase shifter
RF-band
WAKEUP MCCLK RES/TST DVDD DGND
Phase det.
AVDD AGND
f/16, f/32, f/64
Frequency divider
Reference frequency
+/-Q
Loop filter Char. pump XTAL oscillator
XTAL
Figure
Block diagram ASCell3911. Customizable blocks shaded.
Burst interference Resistant Protocol Encoder
order combat disturbances strong bursted interferes, e.g. phone transmissions, message packet (net data packet) encoded with special protocol adding redundancy repetitive transmission suitable manner. (gross) data packet formed (encoded) from message packet (net data packet) splitting the, data information bytes, which extended byte number parity long words. Therefore bits data encoded (expanded) long (gross) data packet. bits long (gross) data packet into transmission sequence that alternates synchronization packet- (gross) data packet transmission shown Figure synchronization packet simple 0101sequence bit. With this method, strong, simultaneous interferers combat.
Rev. Jannuary 2001
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Data Sheet ASCell3911
Transmission Protocol
SYNC 0-1-Sequence Data Packet SYNC 0-1-Sequence Data Packet
Word Pattern Data Packet
12.28
Pattern SYNC
010101. 13.81 .010101
Figure
Transmission protocol ASCell3911.
4.1.1 Transmission Modii ASCell3911 supports different transmission modii: event oriented Single Message Transmission (SMT) where RETX times alternate synchronization data packets transmitted. RETX [4.0] repetition factor part ASCell3011 configuration information. limited transmission time this mode needs less power than supports direct information about duration transmitted command. configuration "SMT/CMT" this mode. status oriented Continuous Message Transmission (CMT) where alternate synchronization data packets transmitted long more buttons pressed. This mode less power efficient than duration command directly transported duration transmission power. configuration "SMT/CMT" this mode.
transmission modus selected modus control "SMT/CMT" ASCell3911 configuration information. default. 4.1.2 Duty-Cycle Operation certain countries, required reduce average transmit power allowed keep peak power high. Therefore duty-cycled operation mode implemented ASCell3911. selecting this operation mode, duty cycle transmit signal 50%, related observation interval This function implemented burst interference resistant protocol encoder. duty cycle operation Duty Cycle Operation "DCO" transmitter configuration information. duty cycle operation selected. default.
Modulation
ASCell3911 uses Filtered (FFSK) modulation with crystal controlled frequency deviation kHz, gross data rate RTXGR 18,25 kbit/s, slightly dependent selected band. Values transmit (gross) data rates frequency deviations given Table
Rev. Jannuary 2001
Page
Data Sheet ASCell3911
58,59 60,54 60,57
fCTX 315,000 433,920 868,300 Table
kbit/s
Nominal transmit (gross) data rates frequency deviations different frequency bands.
protocol encoder delivers transmit (gross) data rate conversion block which delivers base-band equivalents modulation. After filtering smoothing filters spectrum control, baseband FFSK signals delivered direct conversion mixer.
Direct Up-Conversion Mixer
modulation base-band signals converted with help local oscillator signal band. direct conversion mixer optimized high linearity carrier leakage.
Driving Amplifier
driving amplifier differential open collector output optimized driving small, symmetrical highimpedance loop antennas. amplifier drives maximum current mARMS. maximal differential voltage swing about VPP. Therefore, output power function connected load impedance. With RLOAD differential resonant load maximum peak output power antenna) obtained. output power steps steps with means [1.0] control word. PWR1 Table PWR0 Available output power Default Comment
Output power programming value available output power RLOAD
Please note that finally radiated power (from antenna) lower strongly dependent efficiency (function size) antenna used. combat influences temperature changes, process tolerances, diving amplifier operated level control loop which tries keep voltage swing across load resonant circuit limited range around nominal impedance constant. Setting Level ContRol (LCR) turns level control.
Antenna Tuning
ASCell3911 optimized drive small, symmetrical loop antennas. This antennas have usually high quality factor therefore sometimes suffer optimum antenna tuning caused manufacturing tolerances antenna (PCB) objects close antenna. combat these effects ASCell3911 contains antenna tuning changing parallel capacitance antenna three steps. tuning criterion minimization angle complex load impedance used. ANTenna Tuning (ANTT) ASCell3911 configuration (default), antenna tuning performed turn power. antenna tuning disabled power center capacitance value used default. antenna re-tuned time when downloading ANTT during operation. When disabling antenna tuning during operation downloading ANTT previous tuning value kept. case result antenna tuning read from ANTenna tuning Factor (ANTF[1.0]) from status information
Rev. Jannuary 2001 Page
Data Sheet ASCell3911
ANTF1 Table
ANTF0
Variable parallel capacitance
Comment
Default Default
Antenna tuning factor corresponding tuning capacitance value.
XTAL Oscillator (XO)
ASCell3911 contains single-pin used frequency reference ASCell3911 synthesizer digital blocks receiver control block, conversion micro controller interface. external frequency reference shall used, XTAL overwritten standard CMOS digital signal.
Synthesizer
synthesis transmit carrier frequency performed fully integrated triple band, single channel synthesizer. consists voltage-controlled oscillator (VCO), feedback frequency divider, phase detector, charge pump, integrated loop filter. working between inherently generating shifted signals. feedback divider divide different bands selected different XTAL frequency values frequency control word FB[1,0], whereas crystal control "CRYSTAL" range control "RANGE". truth table selection different frequencies given Table 19,6875 13,5600 13,5672 used Table Multiplier CRYSTAL =FB0 RANGE =FB1 fCTX 315,000 433,920 868,300 used
Transmitter configuration different output frequencies. "CRYSTAL" "RANGE" bits configuration information.
Note: come conflict with international regulations power should radiated until CRYSTAL RANGE bits have been properly set.
Microprocessor Clock Generation
ASCell3911 control block provides clock external micro-controller. provide rather constant clock frequency MCLK frequency bands, dividing XTAL frequency crystal control "CRYSTAL" CRYSTAL generates clock frequency. With this clock same software frequency bands envisaged. ASCell3911 configuration clock given Table 19,6875 13,5600 13,5672 Division factor CRYSTAL =FB0 fMCLK/ 3,2813 3,3900 3,3918
Rev. Jannuary 2001
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Data Sheet ASCell3911
used Table
used
clock frequencies different frequency bands. CRYSTAL configuration information.
Three Wire Interface
three-wire interface consists lines: DATA input (DATA). ENABLE, active input (ENABLE). CLOCK input (CLOCK).
They used input message blocks download configuration read ASCell3911 status data. 4.9.1 Three-Wire Interface Transmission Scheme Figure shows three-wire interface transmission protocol. first three bits operation code, which determine direction data transfer. type transferred data.
Three-wire interface transmission protocol Operation code W/NR Guard Data
Configuration write operation
Message data write operation B0:b0 Status read operation B0:b1 B0:b2 DT127 B15:b7
Unused data read operation
Legend:
W/NR Write Read Reserved Data (general sense) Transmit (message) Data Status data write ASCell3911
Information TYpe Guard read write switch Configuration data Arbitrary bits read from ASCell3911
Figure
Three-wire interface transmission protocol.
Rev. Jannuary 2001
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Data Sheet ASCell3911
4.9.2 Interface Timing Figure shows timing write operation into configuration message data register. First operation code transmitted followed guard instruction message bits.
D_CLK DATA D_EN
STR5 STR0
Figure
Write timing configuration- message data register.
writing message data order B0:b0, B0:B1 over Bi:bj B15:b15 where (0.7th) (0.15th) Byte. Figure shows timing read operation from status register. After writing operation code ASCell3911, ASCell3911 DATA line stays high impedance state clock cycle starts transmission selected status message sequence.
D_CLK
ASCll3912 gap=1
DATA D_EN
Figure
Read timing status register.
TX-State N_STOP_ TRANSMIT D_EN DATA D_CLK
Standby
Startup/reset
Active
Transmission
Standby
wake
start transmission
stop transmission
Figure
interface timing data transmission CMT-mode where controller sets N_STOP_TRANSMIT transmission stops. line shows Signal N_STOP_TRANMIT mode where ASCell3911 stops transmission.
Rev. Jannuary 2001
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Data Sheet ASCell3911 4.10 Transmitter Control Block
transmitter control block ASCell3911 manages internal state switching timings which necessary transmitter operation. also incorporates interface wires wake-up, button management, power management clock handling together with micro controller (µC). lines are: Active Wake Input with turn-off reaction delay allow button scanning (WAKEUP). Micro Controller CLocK output (MCCLK).
WAKEUP line incorporates wake time-out tWTO which allows together with MCCLK output sophisticated wake-up button scanner function, which suitable button- micro-controller- initiated system wake-ups.
Transmitter Operation Timing
transmit operation started under button control under contol.
Button Initiated Wake-Up.
Figure shows interconnection ASCell3911 with typical button initiated wake-up, which assumed typical application most remote control cases. Figure presents related timing power down transmitter.
Figure
Interconnection example ASCell3911 with typical where pressing button wakes ASCell3911 which wakes starting clock. scan which button pressed when sets WUI/BSO temporarily 0-level output.
Button Initiated Wake-Up Single Message Transmission (SMT) Continous Message Transmission (CMT) closed Button open WUI/BSO ASCell WAKEUP ASCell MCCLK data transfer ASCell act. (SMT) active (SMT) Transmit (SMT) ASCell act. (CMT) active (CMT) Transmit (CMT)
Button pressed Single message transmitted (SMT) clock starts therewith wakes pulls WAKEUP scan buttons scans buttons (max. releses WAKEUP after scanning buttons writes configuration message packet ASCell3911 power down (SMT, CMT) ASCell3911 start transmit (SMT, CMT) Clock turned TCLK clock cycles after write (SMT) Button released WAKEUP timeout Stop transmission (CMT)
input output
Figure
Typical ASCell3911 interface timing button initiated wake-up power down transmission.
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Rev. Jannuary 2001
Data Sheet ASCell3911
ASCell3911 clock-free standby mode, clock running. ASCell3911 WAKEUP well Wake Input Button Scan Output (WUI/BSO) configured inputs. button closed WAKEUP inputs ASCell3911 WUI/BSO forced ASCell3911 waked powers After starts support clock MCCLK pin. activated WUI/BSO starts operate with clock from ASCell3911. After initialization changes WUI/BSO maximum tWTO output sets low. During this time able scan (identify) pressed button(s). Then sets WUI/BSC back input wait which indicates release buttons. After message establishment writes transmit-message transmitter configuration three-wire interface ASCell3911. This indicated data transfer" Figure configuration data contains also Single Message Transmission Continuous Message Transmission "SMT/CMT" identifying transmission mode. When complete transmit message transmitter configuration available ASCell3911 automatically starts encode transmit message. transmission shut-down ASCell3911 depends been selected. 5.1.1 Single Message Transmission duration pressing button meaning. Only event relevant. Therefore clock from MCCLK stopped shortly after start transmission assumed that there task However TCLK cycles clock provided allow regular shut-down. provided additional clock cycles programmed TCLK[4.0] programming word. transmission lasts, independent last button released earlier WAKEUP goes until four times alternate synchronization data packets have been transmitted. Then ASCell3911 automatically stops transmission turns whole system again clock-fee standby. 5.1.2 Continuos Message Transmission duration pressing button defining duration transmission. During least button pressed, ASCell3911 will transmit continuously sync data packets. Therefore clock from MCCLK stopped shortly after start transmission assumed that there task However TCLK cycles clock provided allow regular shut-down. wakeup timeout time tWTO, after last button been released, ASCell3911 stops transmission turns whole system again clock-fee standby.
Micro Controller Initiated Wake-Up
Figure shows interconnection ASCell3911 with typical initiated wake-up. Figure presents related timing power down transmitter.
Figure
Interconnection example ASCell3911 with typical where wakes ASCell3911. case ASCell3911 stopped transmitting after wakeup reaction delay when sets WAKEUP
Rev. Jannuary 2001
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Data Sheet ASCell3911
Initiated Wake-Up Single Message Transmission (SMT) active ASCell WAKEUP ASCell active data transfer ASCell transmit
wakes ASCell3911 writes configuration message packet ASCell3911 ASCell3911 starts power down ASCell3911 stops
input output
Initiated Wake-Up Continous Message Transmission (CMT) active ASCell WAKEUP ASCell active data transfer ASCell transmit
wakes ASCell3911 writes configuration message packet ASCell3911 ASCell3911 starts shuts down ASCell3911 WAKEUP timeout ASCell3911 stops
input output
Figure
Typical ASCell3911 interface timing initiated wake-up power down transmission.
ASCell3911 initially shut down. active powered wake-up timer. wakes ASCell3911 setting ASCell3911 turns uses external clock reference frequency. After message establishment writes transmit-message transmitter configuration three-wire interface ASCell3911. This indicated data transfer" Figure configuration data contains also SMT/CMT identify transmission mode. When complete transmit message transmitter configuration available ASCell3911 automatically starts encode transmit message. transmission shut-down ASCell3911 depends been selected. 5.2.1 Single Message Transmission duration WAKEUP meaning. Only WAKEUP rising edge event relevant. Therefore immediately asleep when complete transmit message transmitter configuration available ASCell3911 ASCell3911 uses long ASCell3911 receives still clock from system. transmission lasts, independent WAKEUP goes until four times alternate synchronization data packets have been transmitted. Then ASCell3911 automatically stops transmission and, used, turns whole system again standby. 5.2.2 Continuos Message Transmission duration WAKEUP defining duration transmission. During WAKEUP ASCell3911 will continuously transmit sync data packets. Therefore awake long transmission required. wakeup timeout time after WAKEUP been ASCell3911 stops transmission and, used, turns Also asleep. However, ASCell3911 uses external clock, this available until this time. whole system again standby.
Rev. Jannuary 2001 Page
Data Sheet ASCell3911
interface implemented ASCell3911 system cell general, non-specialized example only. modified customer's demand.
Transmitter Configuration Status Information
download configurations message data read status information data three-wire interface ASCell3911 used. content format three byte long ASCell3911 configuration register shown Table written first. Name CRYSTAL RANGE SMT/CMT Meaning Quartz crystal frequency Frequency range Duty cycle operation Single Message Transmission Continuous Message Transmission Transmission repetition factor Parameters 0=13,5600 13,5672 MHz, 1=19,6875 0=315,000 433,920 MHz, 1=868,300 Default Default Default Comment
4.10
RETX[5.0]
0DEZ 64DEZ
Default: 4DEZ minimum reaction time. Default: 16DEZ Default
11.15 16.17
TCLK[4.0] [1.0]
MCCLK delay clock cycles Transmit power level reduction
0DEZ 32DEZ 0DEZ: 1DEZ: 2DEZ: 3DEZ: POUT0 POUT0 POUT0 POUT0
20.23 Table
ANTT
Antenna tuning Level control
Tune Disable tuning Control level level control
Default
Default used
ASCell3911 instruction loaded into configuration register.
content format byte long ASCell3911 status register shown Table readout first. Name ANTF[1.0] Meaning Antenna tuning factor Parameters used Default Comments Default
Table ASCell3911 status information status register.
used
Rev. Jannuary 2001
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Data Sheet ASCell3911
Electrical Characteristics
Symbol ESDRF Tstg Tlead
Absolute Maximum Ratings (non operating)
Parameter Positive supply voltage Negative supply voltage Voltage every input Input current into except supply pins Electrostatic discharge Electrostatic discharge pins Storage temperature Lead temperature -0,5 GND-0,5 VCC+0,5 Units
Note
Latch-up Test
Test according 883C, Method 3015.7. HBM: R=1,5 C=100 positive pulses against supply pin(s), negative pulses against supply pin(s). (re-flow wave soldering), (manual soldering). pins except RF-pins. RF-pins are: RF+, RF-, XTAL.
Symbol IDDTX+6
Operating Conditions
Parameter Positive supply voltage Ground Operating temperature Current consumption transmitting POUT+6 Current consumption transmitting POUT+0 Current consumption turned Power-On-Reset threshold voltage 315,000 433,920 868,300 315,000 433,920 868,300 Conditions Notes Units
IDDTX+0
IDDOFF VPOR
Frequency Generation
unless specified otherwise. Device functional Symbol Parameter Conditions Notes 19,6865 13,55931) 13,56691)
19,6875 13,5600 13,5672
19,6885 13,56071) 13,56751)
Units
Page
Crystal oscillator (XOSC) 315,000 MHz: frequency 433,920 MHz: 868,300 MHz: Crystal oscillator (XOSC) 315,000 MHz: (-40 °C), fequency tolerance 433,920 MHz: (-40 °C), 868,300 MHz: (-40
fTxo
Rev. Jannuary 2001
Data Sheet ASCell3911
fCTX Carrier frequency proper configuration external crystal. 314,9841) 433,8981) 868,2791) 315,000 433,920 868,300 315,0161) 433,9421) 868,3231)
Minimum maximum value given external crystal therefore parameter production tested.
Transmit Operation
unless specified otherwise. Device functional Symbol Parameter Magnitude frequency deviation Gross data rate Conditions Notes 315,000 433,920 868,300 315,000 433,920 868,300
+68,4 +61,7 +61,7 18,235 18,225 19,226
Units kbps kbps kbps
RTXGR
fFSK RLOAD
smoothing filter cutoff frequency Nominal differential load resistance Resonance resistance RLOAD fCTX load resonance circuit with impedance ZLOAD -1,5 -1,5 -3,0 -7,5 -7,5 -9,0 -13,5 -13,5 -15,0
POUT+6
Available output power, 315,000 MHz: 0DEZ into RLOAD 433,920 MHz: (differential) 868,300 MHz: turned level control Available output power, 315,000 MHz: 1DEZ into RLOAD 433,920 MHz: (differential) 868,300 MHz: turned level control Available output power, 315,000 MHz: 2DEZ into RLOAD 433,920 MHz: differential 868,300 MHz: turned level control Available output power, 315,000 MHz: 3DEZ into RLOAD 433,920 MHz: (differential) 868,300 MHz: turned level control Spurious emission power transmitting fCTX±fXO POUT+6 into res. circuit with ZLOAD (differential) Spurious emission power transmitting fCTX±fMCLK POUT+6 into res. circuit with ZLOAD (differential) Spurious emission power transmitting 315,000 POUT+6 into res. circuit with ZLOAD (differential) 315,000 MHz: 433,920 MHz: 868,300 MHz: turned level control 315,000 MHz: 433,920 MHz: 868,300 MHz: turned level control 2*315,000 MHz: 3*315,000 MHz: 4*315,000 MHz: 5*315,000 MHz: turned level control
-1,5 -6,0 -6,0 -7,5 -12,0 -12,0 -13,5
+1,5 +1,5 -4,5 -4,5 -6,0 -10,5 -10,5 -12,0
POUT0
POUT-6
POUT-12
POUT,SPX2)
POUT,SPM
POUT,SP32)
Rev. Jannuary 2001
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Data Sheet ASCell3911
POUT,SP42)
Spurious emission power transmitting 433,920 POUT+6 into res. circuit with ZLOAD (differential)
2*433,920 MHz: 3*433,920 MHz: 4*433,920 MHz: 5*433,920 MHz: turned level control
POUT,SP82)
Spurious emission power 2*868,300 MHz: transmitting 3*868,300 MHz: 868,300 POUT+6 turned level control into res. circuit with ZLOAD (differential) Antenna tuning range Antenna tuning steps Time between different transmitted messages.
tTX2
Minimum maximum value given external crystal therefore parameter production tested. Spurious power measured reactive load with 2000 transmit frequency fCTX given spurious emission values backwards calculated knowing transfer function output resonant circuit. radiated spurious emissions dependent antenna selectivity efficiency therefore production tested. Spurious emission suppression carrier harmonics part antenna design.
7.4.1 Summary International Regulations about Radiated Power following limits radiated RF-transmit- spurious emissions given national international regulations given design support. Symbol PTX,E Parameter Transmission power Europe 300-220) (2000.09) Table Spurious emission intensity Europe 300-220) (2000.09) Table Conditions Notes 1000 MHz, Class Units
PTX,SEE
74MHz, 87.5 118MHz, 230MHz 862MHz: 1000MHz: 1000MHz:
PTX,U PTX,SEU
Transmission power MHz: limited (FCC Spurious emission intensity (FCC CFR15) µV/m (100 µV/m 3m): (150 µV/m (200 µV/m >960 (500 µV/m 315,??? 315,??? MHz: <322 MHz, (500 µV/m GHz, µV/m
PTX,J PTX,SEJ
Transmission power Japan (???) Spurious emission intensity Japan (???)
Transmitted spurious power bandwidth isotropic antenna giving distance electrical field-strength given regulations.
Rev. Jannuary 2001
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Data Sheet ASCell3911
Symbol RDATA fCLOCK
Timing Parameters
Parameter wire interface data rate wire interface clock frequency wire interface timing wire interface timing wire interface timing Conditions Notes Units Mbit/s WAKEUP defined running Start-up lock
TXOON
turn time Time between ENABLE writing message transmit start Time between WAKEUP transmit start Wakeup timeout after WAKEUP
TWTO TTCLK
Time button scanning turn delay
Time that MCCLK output cycles MCCLK stays active after whereas ranges from ENABLE writing message Power-On-Reset duration
TPOR
Digital Characteristics
unless specified otherwise. reference. Symbol Parameter Conditions Units
WAKEUP (input), ENABLE (input), CLOCK (input) High level input voltage level input voltage High level input current level input current VDD-0,5 +/-5 VIH= VDD-0,5
Page
MCCLK (output) High level output voltage level output voltage Rise time Fall time Cycle cycle jitter High level input voltage level input voltage High level input current level input current level output voltage CLoad CLoad
DATA (input output), TST/RST (input output)
High level output voltage
Rev. Jannuary 2001
Data Sheet ASCell3911
Rise time Fall time High level input voltage level input voltage High level input current level input current
CLoad CLoad VDD-0,5
XTAL used reference frequency input)
Description
Note: Name PAGND RFAVDD WAKEUP AGND XTAL DGND RES/TST MCCLK CLOCK DATA ENABLE DVDD Type Dir. Description Power amplifier analog GND. Power amplifier output (open collector). Power amplifier output (open collector). PLL, mixer Analog VDD. WAKEUP Input. PLL, mixer Analog GND. connection. controller block, conversion Digital GND. Power-on-RESet output, TeST input/output test mode. Micro Controller CLocK output. Data CLOCK input. Message configuration DATA input, status DATA output. ENABLE serial interface. controller block, conversion Digital VDD.
ordering preliminary will fixed fab-in.
Application Schematic
Figure
Basic application schematic ASCell3911.
Rev. Jannuary 2001
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Data Sheet ASCell3911
Package Information
Figure
Physical dimensions TSSOP-14. Common Dimensions Symbol Minimal (mm/mil) 6,25/0,246 4,30/0,169 0,50/0,020 0,65 6,40/0,252 4,40/0,173 0,60/0,024 6,50/0,256 4,50/0,177 0,70/0,028 0,05/0,002 0,19/0,0075 Nominal (mm/mil) 0,10/0,004 Maximal (mm/mil) 1,10/0,0433 0,15/0,006 0,30/0,0118
Table
Package dimensions.
ASCell's functional in-spec circuits, which usually available samples with documentation demoboard. However they intentionally used basis ASIC derivatives. ASCell fits into customer's application will immediately qualified transfered ASSP ordered regular product. Copyright 2000, Austria Mikro Systeme International 8141 Austria. Telefon +43-(0)3136-500-0, Telefax +43-(0)3136-52501, E-Mail info@amsint.com rights reserved. part this publication reproduced, stored retrieval system, transmitted, form means, without prior permission writing copyright holder. best knowledge, Austria Mikro Systeme International asserts that information contained this publication accurate correct.
Rev. Jannuary 2001
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ASCell3911 ASCell3911 MHz, Band Transmitter with Burst Inter

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