Motorola MOTOTRBO XPR 7550e - Figure 6-14. Power Management and Audio Schematic Diagram (3 of 3)

6-16 Circuit Board/Schematic Diagrams and Parts List for UHF
E3300
R3320
Q3320
R3321
DC_LIN_VBUS_SUPPLY
ISNSN
ISNSP
VBUS_FET_CTRL
3
1
2
10K
47K
Q3322
5
4
8
7
6
3
2 1
C3321
DC_LIN_5V_VBUS
R3330
R3331
R3332
R3333
GPIO_GCAI_SEL2
GPIO_GCAI_SEL1
GPIO2_GCAI
ONEWIRE_GCAI
GPIO4_GCAI
GPIO1_GCAI
USB0_DP_SHIELD
USB0_DM_SHIELD
IO
IO
R3334
DP_GPIO1_GCAI_SHIELD
DM_GPIO2_GCAI_SHIELD
USBGPIO_CTRL
DC_LIN_5V
IO
IO
Q3327
USBGPIOSW
3
1
2
10K
47K
C3330
U3330
DC_LIN_5V
12 9
7
10
6 3
8
5
11
2
4
1
VCC1
GND2
S1
B1_1
A1
B1_0
VCC2
S0
GND1
B0_1
A0
B0_0
C3315
C3380
C3379
C3310
DC_RAWB+
VGCAIEN
U3310
C3384
R3313
R3314
ADJ
BYPASS_PIN
85
7
2
4
3
G1
1
6
ADJ
GND
SHUTDOWN
BYPASS
INPUT
CTGND
OUTPUT
NC1
NC2
NC
NC
C3378
DC_LIN_VBUS_SUPPLY
5V VBUS 500MA CURRENT LIMIT CIRCUITRY
5.1 VBUS SUPPLY
USB GPIO MUX
Figure 6-14. Power Management and Audio Schematic Diagram (3 of 3)