User's Manual

DE910 Series Hardware User Guide
1vv0301183 Rev.1 – 2015-2-13
Reproduction forbidden without written authorization from Telit Communications S.p.A. - All Rights
Reserved. Page 14 of 70
3. DE921 Module Connections
3.1. Pin-Out
Pad no. Function I/O VOLTAGE
ACTIVE
LOW
IF UNUSED PU/PD
W18
ADC1 I 2.85V Ground
X19
ADC0 I 2.85V Ground
A3
Reserved
Leave Open
B4
Reserved
Leave Open
A5
Reserved
Leave Open
B6
Reserved
Leave Open
A7
Reserved
Leave Open
B8
Reserved
Leave Open
A9
Reserved
Leave Open
B10
R
eserved
Leave Open
V16
Reserved
Leave Open
S19
Reserved
Leave Open
S20
ON/OFF I VBATT X Must be Used PU
D20
Reserved Leave Open
N21
PCM_FS O VCC_1V8 Leave Open
R21
PCM_CLK O VCC_1V8 Leave Open
T21
PCM_DOUT O VCC_1V8 Leave Open
V21
PCM_DIN I VCC_1V8 Leave Open
L1
Reserved I Leave Open
N1
GND Ground
J1
GND Ground
M20
Leave Open O VCC_1V8 Leave Open
B1
GND Ground
C1
GNSS_ANT I 5V Leave Open
E1
GND Ground
R1
GPIO8 I/O VCC_1V8 Leave Open PU
G1
GPIO3 I/O VCC_1V8 Leave Open PD
K2
GPIO5 I/O VCC_1V8 Leave Open PU
M2
GPIO6 I/O VCC_1V8 Leave Open PU
P2
GPIO7 I/O VCC_1V8 Leave Open PD