Alereon AL5721 Manuale d'uso - Pagina 3

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Pin #
Pin Name
1
NC
2
3.3V
3
NC
4
GND
5
NC
6
NC
7
NC
8
NC
9
GND
10
NC
11
NC
12
NC
13
NC
14
NC
15
GND
16
USB VBUS
17
Host_Select
18
GND
19
NC
20
W_Disable#
21
GND
22
Association_CLR
23
NC
24
NC
25
NC
26
GND
27
GND
28
Assoc. D+
29
GND
30
Assoc. D-
31
NC
32
Assoc. VBUS
33
NC
34
GND
35
GND
UG-AL5721_1.0
AL5721 Pin Function Description
I/O
Description
No Connection
+3.3V Regulated power from host system
No Connection
Ground connection
No Connection
No Connection
No Connection
No Connection
Ground connection
No Connection
No Connection
No Connection
No Connection
No Connection
Ground connection
I
+5V USB Vbus Signal from host system
I
(1) High = True 3.3V CMOS signal, allows host
system to provide control of selection among
multiple hosts associated to UWB radio.
(2) Test function, holding Host_Select high at
+3.3V power application to the AL5721 and then
switching it low places the aL5721 into
Administrative Mode for control by Alereon
manufacturing test utility software
Ground connection
No Connection
I
Low = True 3.3V CMOS signal, assertion of
W_Disable# completely disables the radio system.
Ground connection
I
High = True 3.3V CMOS signal, assertion of
Association_CLR clears all stored host
associations
No Connection
No Connection
No Connection
Ground connection
Ground connection
I/O
USB D+ of Association signal
Ground connection
I/O
USB D- of Association signal
No Connection
I
+5V USB Vbus Signal from association connector
No Connection
Ground connection
Ground connection
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