Hardware Development Guide of Module Product
All Rights reserved, No Spreading abroad without Permission of ZTEWelink
28
MF206A
PIN
Signal Definition
Voltage
I/O
PIN Attribute
PU/PD
Remark
68
NC
--
--
--
--
--
69
GND
--
--
Ground
--
--
70
GPS_ANT
--
--
GPS antenna
--
--
71
GND
--
--
Ground
--
--
72
JTAG_TRST_N
P1
DI
JTAG reset
PD
--
73
JTAG_RTCK
P1
DO
JTAG return clock
--
--
74
JTAG_TCK
P1
DI
JTAG clock input
-PU
--
75
JTAG_TDO
P1
Z
JTAG test data output
--
--
76
JTAG_TDI
P1
DI
JTAG test data input
PU
--
77
JTAG_TMS
P1
DI
JTAG test mode select
PU
--
78
GND
--
--
Ground
--
--
79.-
108.
GND
--
--
Heat-dissipation welder --
--
NOTE:
―NC‖ indicates Not Connected internal. That is, there is no connection inside the module. P1 and P2
refer to the power-supply signal level group 1 and 2.
If not used, almost all pins should be left disconnected. The only exceptions are the following pins as
shown in the Table 3-3 below:
Table 3–3 Mandatory Pins of Module
PIN
Signal Definition
Remark
1
ANT_MAIN
5
POWER_ON
Pull-up to 1.8V internally.
23
VPH_PWR
It must be able to provide sufficient current in a
transmitting burst which typically rises to 2.0A.
43
USB_VBUS
45
USB_DP
Require differential impedance of 90Ω.
46
USB_DM
Require differential impedance of 90Ω.
48
VREG_RUIM
49
UIM_DATA