UHF ASK/FSK Transmitter T5754
UHF ASK/FSK Transmitter T5754
UHF ASK/FSK Transmitter T5754
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2. Pin Configuration<br />
Figure 2-1.<br />
Pinning TSSOP8L<br />
CLK<br />
PA_ENABLE<br />
ANT2<br />
ANT1<br />
1<br />
2<br />
3<br />
4<br />
8<br />
7<br />
6<br />
5<br />
ENABLE<br />
GND<br />
VS<br />
XTAL<br />
Table 2-1.<br />
Pin Description<br />
Pin Symbol Function Configuration<br />
VS<br />
1 CLK<br />
Clock output signal for micro con roller<br />
The clock output frequency is set by the<br />
crystal to f XTAL /4<br />
100Ω<br />
CLK<br />
100Ω<br />
2 PA_ENABLE<br />
Switches on power amplifier, used for<br />
<strong>ASK</strong> modulation<br />
PA_ENABLE<br />
50 kΩ<br />
U REF = 1.1V<br />
20 µA<br />
ANT1<br />
3<br />
ANT2<br />
Emitter of antenna output stage<br />
4<br />
ANT1<br />
Open collector antenna output<br />
ANT2<br />
2<br />
<strong>T5754</strong><br />
4511I–RKE–02/07
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