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UAA4000THOMSONN/a3000avaiRemote Control Transmitter


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UAA4000
Remote Control Transmitter
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UAA4000
REMOTE CONTROL TRANSMITTER
I ULTRASONIC OR INFRA-RED TRANSMIS-
I DIRECT DRIVE
TRANSDUCER
I DIRECT DRIVE OF VISIBLE LED WHEN US-
ING INFRA-RED
I VERY LOW POWER REQUIREMENTS
I PULSE POSITION MODULATION GIVES EX-
CELLENT IMMUNITY FROM NOISE AND
MULTIPATH REFLECTIONS
I SINGLE POLE KEY MATRIX
I SWITCH RESISTANCE UP TO Ikt2 TOLER-
I FEW EXTERNAL COMPONENTS
I ANTI-BOUNCE CIRCUITFIY ON CHIP
FOR ULTRASONIC
QUICK REFERENCE DATA
I POWER SUPPLY : 9 V, STANDBY 6 pA, OP-
ERATING 8 mA
I MODULATION : PULSE POSITION WITH OR
WITHOUT CARRIER
I CODING: 5 BITS WORD GIVING A PRIMARY
COMMAND SET OF 32 COMMANDS
I KEY ENTRY : 8 x 4 SINGLE POLE KEY MA-
I DATE RATE : SELECTABLE 1 BIT/SEC TO
10 K BIT/SEC
I CARRIER FREQUENCY: SELECTABLE OHZ
(no carrier) TO 200kHz
DESCRIPTION
The UAA4000 is an easily expandable, 32 com-
mand, pulse position modulation transmitter draw-
ing zero standby current.
(Plastic Package)
ORDER CODE l UAA4000
PIN CONNECTIONS
GND AND mac C] 1 V 18 Cl CARRIER TIMECONSTANT
E 2 17 CI STABILIZEDVOLTAGE
OUTPUTS
l: 3 16 C) PPM TIMECONSTANT
vCC 1: 4 15 T) mm
SELECTION MATRIX
oOOXX E 5 14 Cl XXXto CURRENT SINKS
001XX E 6 13 l] XXX11
t:i'fkh',TlohMdgl'f, 010XX l: 7 12 C] 111XX SELECTION MATRIX
011XX E a ll CI 110XX CURRENT SOURCES
100XX l: 9 10 Il 101XX
May1993 1/5
2 D 7512:1237 UUI:I=E'+ 23 El
400001 EPS
UAA4000
BLOCK DIAGRAM
R Rs."'
cv,.-" SWITCH
(si. CURRENT Vcc
SUPPLY SWITCH
REGULATOR REG
SWITCH :Q. . _ Cs.. ..
MATRIX 1 CODE ic'':':' "a OUTPUT
23323:; REGISTER ICC.', MULTIPLEX TO TOR
i» C&men _ TIME
'u''. _ t MODULATOR CONSTANT
SWITCH '
MATRIX t
CURRENT . CARRIER TIME
souncss -- OSCILLATOR CONSTANT
ABSOLUTE MAXIMUM RATINGS
I Parameter
Vcc V 4
Maximum Power
Ic Maximum Current Pin 3
THERMAL DATA
Symbol Parameter Value Unit
Rho-a) Junction-ambient Thermal Resistance 70 °CNV
ELECTRICAL CHARACTERISTICS Tarnb = 25''C, Vcc = 9V, fo = 40kHz, t1 = 18ms
4. 7pF Capacitor on Pin 17 (unless otherwise specified) (see test circuit next page)
Symbol Parameter , Pins Mln. Typ. Max. Unit
Vcc Operating Supply Voltage 4 7 9 11 V
Operating Supply Current 4 8 16 mA
Standby Supply Current 4 30 WA
Stabilized Voltage 17 3.9 4.2 4.5 V
Output Current Available 17 1 mA
Output Voltage Swing (unloaded) 2, 3 8 Vcc V
Output Current(peak value) 2,3 5 mA
External Switch Resistance 1 kn
External Switch Closing Time 6 ms
External Carrier Oscillator(R2 required, Ce = 680pF) 18 20 40 80 kn
External PPM Resistor(R1 required, C1 = O.68WF) 16 15 30 60 kn
Ratio tMI 2, 3 1.4 1.5 1.6
Ir, Pulse Width 2, 3 2 3 4 ms
tl, Inter-word Gap 2, 3 50 54 58 ms
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B 'i"li'3iil37 DDTEBES 173 El
4M4! EPS
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ic,good price


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