UHF ASK/FSK Receiver ATA3745 - Atmel Corporation
UHF ASK/FSK Receiver ATA3745 - Atmel Corporation
UHF ASK/FSK Receiver ATA3745 - Atmel Corporation
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<strong>ATA3745</strong><br />
2. Pin Configuration<br />
Figure 2-1.<br />
Pinning SO20<br />
NC<br />
<strong>ASK</strong><br />
CDEM<br />
AVCC<br />
AGND<br />
DGND<br />
MIXVCC<br />
LNAGND<br />
LNA_IN<br />
NC<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
8<br />
9<br />
10<br />
20<br />
19<br />
18<br />
17<br />
16<br />
15<br />
14<br />
13<br />
12<br />
11<br />
DATA<br />
ENABLE<br />
TEST<br />
POUT<br />
MODE<br />
DVCC<br />
XTO<br />
LFGND<br />
LF<br />
LFVCC<br />
Table 2-1. Pin Description<br />
Pin Symbol Function<br />
1 NC Not connected<br />
2 <strong>ASK</strong> <strong>ASK</strong> high<br />
3 CDEM Lower cut-off frequency data filter<br />
4 AVCC Analog power supply<br />
5 AGND Analog ground<br />
6 DGND Digital ground<br />
7 MIXVCC Power supply mixer<br />
8 LNAGND High-frequency ground LNA and mixer<br />
9 LNA_IN RF input<br />
10 NC Not connected<br />
11 LFVCC Power supply VCO<br />
12 LF Loop filter<br />
13 LFGND Ground VCO<br />
14 XTO Crystal oscillator<br />
15 DVCC Digital power supply<br />
16 MODE Selecting 433.92 MHz/315 MHz. Low: 4.90625 MHz (USA), High: 6.76438 MHz (Europe)<br />
17 POUT Programmable output port<br />
18 TEST Test pin, during operation at GND<br />
19 ENABLE Enables the polling mode. Low: polling mode off (sleep mode). High: polling mode on (active mode)<br />
20 DATA Data output/configuration input<br />
4901B–RKE–11/07<br />
3
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