AS3930
Datasheet - P i n A s s i g n m e n t s
4.2 QFN 4x4 16 LD
Figure 5. QFN Pin Assignments (Top View)
16
15
14
13
NC
1
12
SCL
NC
LF1P
LFN
2
3
4
5
AS3930A
6
7
8
11
10
9
CS
NC
DAT
4.2.1
Pin Descriptions
Table 2. QFN 4x4 16 LD Pin Descriptions
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
NC
NC
LF1P
LFN
XIN
XOUT
V SS
WAKE
DAT
NC
CS
SCL
SDI
SDO
V CC
GND
Pin Type
-
-
Analog I/O
Supply pad
Digital output
-
Digital input
Digital output / tristate
Supply pad
Description
Not connected
Input antenna
Antenna ground
Crystal oscillator input
Crystal oscillator output
Substrate
Wake-up output IRQ
Data output
Not connected
Chip select
SDI interface clock
SDI data input
SDI data output (tristate when CS is low)
Positive supply voltage
Negative supply voltage
www.ams.com/LF-Receiver/AS3930
Revision 1.5
5 - 32
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