SDA2008 ,Infrared Remote Control TransmitterFeatures
0 Complete security of the keyboard against operating errors
. Instruction extension u ..
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SDA2008
Infrared Remote Control Transmitter
Infrared Remote Control Transmitter _ _ r' _ ", SDA 2008
DIP 18
The SDA 2008 IC represents a follow-on development of the infrared transmitter IC SAB 3210.
It includes a disconnectable 8-stage divider, thus enabling the oscillator to operate up to
500 kHz with a ceramic oscillator instead of an LC circuit.
Features
0 Complete security of the keyboard against operating errors
0 Instruction extension up to 60 instructions is possible by using diodes
and by means of a shift key (keyboard changeover)
0 Start bit programmable by external voltage
o Wide supply voltage range between 5 V and 16 V
0 Low current consumption, typically 3 mA. The battery can be switched off
by an external transistor
0 No external column resistors necessary
Maximum ratings
all voltages referred to la, == 0 V
Supply voltage Vss 18 V
Input voltage Vi 18 V
Power dissipation per output Pa 100 mW -
Total power dissipation Plot 500 mW
Storage temperature range Tsto -40 to 125 'C
Operating range
referred to VDD ....-., O V
Supply voltage V53, 5 to 16 V
Supply voltage" l/ss, 5.5 to 16 V
Ambient temperature TA /~ _ "OTtr70" ', °C -
1) Instruction extension with diodes
SDA 2008
Characteristics
all voltages referred to VDD
Supply current
(outputs not connected)
Leakage Current, total current
of outputs Ca, Cb, Cc, Cd, ETA, IRA
(refer to test circuit)
Inputs
Oscillator input CLK I
Operating frequency
with prescaler
Operating frequency for external clock
with disconnected prescaler
IRA remote control signal output
H output voltage
(refer to test circuit)
[-4 mA; Vsswev
H resistor with respect to Vss
ETA switch-on transistor output
H output current
Vor ,=Vss-4 V
l min I typ I max I
fs 3 7 mA
Iz.3,4,5.7.e 1 pA
hr 160 560 kHz
hr 20 70 kHz
Vn H8 Vss-S V
R, H8 100 Q
[W I 100
i i100
00 I'"
