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AS3911 Datasheet(PDF) 5 Page - ams AG

Part # AS3911
Description  NFC Initiator / HF Reader IC
PDF  159 Pages
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Manufacturer  AMSCO [ams AG]
Direct Link  http://www.ams.com
Logo AMSCO - ams AG

AS3911 Datasheet(HTML) 5 Page - ams AG

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ams Datasheet
Page 5
[v2-11] 2016-Jun-13
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AS3911 − Pin Assignment
Note(s):
1. Pins in bold have different functionality in comparison to the AS3910.
9VSP_RF
Analog
output
Supply regulator output for antenna drivers
10
RFO1
Antenna driver output
11
RFO2
12
VSN_RF
Supply pad
Ground of antenna drivers
13
TRIM1_3
Analog I/O
Input to trim antenna resonant circuit
14
TRIM2_3
15
TRIM1_2
16
TRIM2_2
17
TRIM1_1
18
TRIM2_1
19
TRIM1_0
20
TRIM2_0
21
VSS
Supply pad
Ground, die substrate potential
22
RFI1
Analog input
Receiver input
23
RFI2
24
AGD
Analog I/O
Analog reference voltage
25
CSI
Analog input
Capacitor sensor input
26
VSN_A
Supply pad
Analog ground
27
IRQ
Digital output
Interrupt request output
28
MCU_CLK
Microcontroller clock output
29
MISO
Digital output
/ tristate
Serial Peripheral Interface data output
30
MOSI
Digital input
Serial Peripheral Interface data input
31
SCLK
Serial Peripheral Interface clock
32
/SS
Serial Peripheral Interface enable (active low)
#
VSS
Exposed Pad
Ground, die substract potential, connect to VSS on PCB
Pin Number
Pin Name
Pin Type
Description
32-pin QFN



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