Motorola MOTOTRBO XPR 7550e - Figure 8-19. VCO Schematic Diagram (4 of 4)

Circuit Board/Schematic Diagrams and Parts List for 800/900 MHz 8-21
VCO OUT COUPLING CAPS AT VCO MATCH
C0300
C0301
E0300
DC_LIN_VRF1_2.775V
DC_LIN_VRF1_2.775V_VCO
IN
C0326
C0329
C0327
DC_LIN_VRF1_2.775V_VCO
U0301
C0328
TL_VCO_OUT_SHIELD
OUT
6
5
4
11
3
9
1
12 10
8 7 2
G1
J3
V2
V1
RFC
GND1 GND4 GND3
GND2
J1
VDD
CTGND
GND5
J2
C0320
C0322
VCO3_OUT
VCO1_OUT_SW_TL_50OHM
VCO1_OUT
VCO3_OUT_SW_TL_50OHM
DNP
DNP
C0332
C0330
C0321
C0324
C0325
VCO2_OUT_SW_TL_50OHM
DIG_VCOV1
VCO2_OUT
R0302
R0303
DC_LIN_VRF1_2.775V_VCO
R0305
Q0301
R0301
R0306
DIG_VCOV2
DC_LIN_VRF1_2.775V_VCO
3
1
4
5
2
E2
B1 E1
C2
C1
R0304
DIG_VCO1_800B2_EN
DIG_VCO2_900_EN IN
IN
Figure 8-19. VCO Schematic Diagram (4 of 4)