Freescale Semiconductor KITVR500EVM, Руководство пользователя

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Getting to Know the Hardware
KTVR500UG Rev. 1.0 8/2014
8 Freescale Semiconductor, Inc.
3.6.1 LDO Input Supply Source Selection
It is possible to modify the LDO input supply sources by removing the Jumpers J12, J13, J14, J17 and connecting another power supply,
as one of the buck converters outputs.
Figure 4. LDO Schematic Configuration
J30 SW4
Pin 1 – SW4 Output
Pin 2 – GND
J31 SW2
Pin 1 – SW2 Output
Pin 2 – GND
J32 SW3
Pin 1 – SW3 Output
Pin 2 – GND
Table 5. Connector Description
Connector Function Pin definition
J20 Debug Port 1 Debugging connector for future development tools
J26 BDM Connector
Pin 1 - BKGD_JM60
Pin 2 - GND
Pin 3 - NC
Pin 4 - RST_JM60
Pin 5 - NC
Pin 6 - USB_PWR
J28 Mini USB Connector
Pin 1 - VBUS
Pin 2 - D-
Pin 3 - D+
Pin 4 - NC
Pin 5 - GND
Chassis - GND
J33 Debug Port 2 Debugging connector for future development tools
J34 Debug Port 3 Debugging connector for future development tools
J35 Debug Port 4 Debugging connector for future development tools
Table 4. Terminal Blocks Descriptions (continued)
LDO INPUT SENSE POINTS
V_LDO1 V_LDO2 V_LDO3 V_LDO4 V_LDO5
LDO OUTPUT SENSE POINTS
REFOUT
Default:
1-2 shunt
VLDOIN45 VLDOIN23 VLDOIN1
REFIN
VHALF
V_LDO1
V_LDO5
V_LDO4
V_LDO2
V_LDO3
REFOUT
VLDOIN45
VLDOIN23
VLDOIN1
REFIN
VHALF
V_LDO1 V_LDO2 V_LDO3 V_LDO4 V_LDO5
REFOUT
VIN
V_SW3
C4
2.2UF
TP40
DNP
C31
1.0UF
C35
0.1UF
TP9
DNP
TP38
DNP
C34
4.7uF
TP11
DNP
J12
HDR 1X2 TH
1 2
C62
4.7uF
TP37
DNP
TP13
DNP
TP12
DNP
C37
0.1UF
TP30
DNP
J13
HDR 1X2 TH
1 2
J14
HDR 1X2 TH
1 2
C10
2.2UF
LDO
REF
REG
MC34VR500V1ES
U1B
LDO1
18
VLDOIN45
40
VHALF
29
VLDOIN1
17
LDO5
41
REFIN
30
REFOUT
31
LDO2
26
LDO3
28
VLDOIN23
27
LDO4
39
C54
1.0UF
C29
1.0UF
R11
0
C33
1.0UF
TP36
DNP
C32
2.2UF
TP34
DNP
C63
1.0UF
TP18
DNP