Xplore Technologies Corp. MC7750 Manual Do Utilizador

Electrical Specifications

Rev 4 Sep.11

Proprietary and Confidential - Contents subject to change

Figure 4-2: Expanded RF block diagram

Host interface pin assignments

The MC7750 host I/O connector provides pins for power, serial communications,
and control. Pin assignments are listed in

Table 4-1.

See the following tables for

pin details based on interface types:

•

Table 4-2, Power and ground specifications, on page 29

•

Table 4-3, USB interface, on page 29

•

Table 4-4, SIM interface signal, on page 30

•

Table 4-5, Module control signals, on page 33

Note: On any given interface (USB, SIM, etc.), leave unused inputs and outputs as no-
connects.

Diplexer

SP5T

DRX_LB2

PRX_LB1

BC0+B5+GSM850

B8+GSM900

PRX_LB2

PRX_MB2

PRX_MB1

DRX_MB1

B13

DRX_LB1

DRX_MB2

DRX_HB

B1d

BC0/B5

GSM850/900

GSM1800/1900

TX_LB4

TX_MB1

TX_LB2

TX_LB1

TX_LB3

TX_MB3

RF Diversity/GPS

Connector 2

SP2T

GPS

LNA

GNSS

SP2T

RF Main

Connector

SP10T

RTR8600

BC1/B2

SP2T

PRX_I

DRX_Q

PRX_Q

DRX_I

BASEBAND:
MDM9600 or

PMIC8028

GNSS_I

GNSS_Q

TX_I

TX_Q

Jammer Det

TCXO

DAC_REF

RTR_SSB

GNSS

Connector 1

B13d

BC1d + B2d

BC0d + B5d + B8d

Power Det

B1d

GSM1800 + GSM1900

TX_MB4

BC1 + B2

BC0 + B5

B13

BC1/B2