Read Panasonic KX-HDV430 Service Manual online
9
KX-HDV430 Series
4.2.4.
PoE Circuit
The IC202 integrates a PD(Powered Device) controller and a DC-DC CONVERTER.
PD CONTROLLER
• a resistance(R209:26.7Kohm) for signature detection.
• classification currents (R211:90.9Kohm 1%) for power classification(HDV330 supports Class 3)
• classification currents (R211:90.9Kohm 1%) for power classification(HDV330 supports Class 3)
DC-DC CONVERTER
• Current limit/ Current Sense(R207)
• Output voltage feedback(R204,R213,R201)
• Output voltage feedback(R204,R213,R201)
RGMII I/F
IC101
MII I/F
IC601
MII I/F
IC601
MDI_LC_P
MDI_PC_P
MDI_PC_N
MDI_PD_P
MDI_PD_N
MDI_PB_N
MDI_PB_P
MDI_PA_N
MDI_PA_P
MDI_LD_N
MDI_LD_P
MDI_LC_N
MDI_LA_P
MDI_LA_N
MDI_LB_P
MDI_LB_N
L2_VDD11
TI_TXD[2]
006:2D
R259
1
2
3
45
6
7
8
DG
TI_TXD[1]
006:2D
L2_VDD11
TI_TXD[0]
006:2D
L2_DVDD
TI_TXEN
006:2D
L2_VDDPLL11
L2_AVDD
R258
PHY_INT
L2_DVDD
TI_TXD[3]
006:2D
L2_AVDD11
E_RXCLK
001:6B
E_TXCLK
001:6B
E_RXD[1]
001:6B
E_TXEN
001:6B
E_RXD[2]
001:6B
E_TXD[3]
001:6B
E_RXD[3]
001:6B
E_TXD[2]
001:6B
E_TXD[1]
001:6B
E_RXDV
001:6A
E_RXD[0]
001:6B
E_TXD[0]
001:6B
TI_RXD[3]
006:
TI_RXCLK
006:
TI_RXD[1]
006:
TI_RXD[2]
006:
TI_RXDV
006:
TI_TXCLK
006:
TI_RXD[0]
006:
R227
DG
R247
R226
DG
E_MDCLK
001:6A
PHY_RST
001:5A
E_MDIO
001:6A
25MOUT
001:5C
DG
C238
R215
R220
L2_DVDD
IC203
3
LAN2MDICN
4
LAN2MDIDP
5
LAN2MDIDN
6
AVDDH1
7
AGND
8
MDIREF
9
AVDDL2
10
RTT1
11
AVDDH2
25
M2P_RXD1
26
M2P_RXD0
27
M2P_RXDV
28
M2P_RXCLK
29
M2P_TXCL
K
30
M2P_TXEN
31
M2P_TXD0
32
M2P_TXD1
33
M2P_TXD2
47
M1P_TXD1
48
M1P_TXD2
49
M1P_TXD3
50
DVDDIO_1_2
51
DVDDIO2
52
DVDDL3
53
DIS_SPIS
54
LAN2LED1
55
LAN2LED2/EM_PWRLIGHT
76
LAN1MDIB
N
77
AVDDL3
78
LAN1MDICP
79
LAN1MDIC
N
80
LAN1MDIDP
81
LAN1MDID
N
82
PLLVDDL
83
PLLGN
D
84
AVDDH6
1
AVDDL1
2
LAN2MDICP
12
DVDDIO1
13
GPIO57/INTERRUPT
14
DVDDL1
23
M2P_RXD3
24
M2P_RXD2
34
M2P_TXD3
35
DVDDL
2
36
DVDDIO_2_
2
45
M1P_TXEN
46
M1P_TXD0
56
LAN2LED0/RESERVED
57
DIS_8051
58
DISAUTOLOAD
74
LAN1MDIA
N
75
LAN1MDIBP
85
LAN2MDIA
P
86
LAN2MDIA
N
87
LAN2MDIB
P
15
HSON
37
DVDDIO_1_
1
59
LAN1LED2/RESERVED
88
LAN2MDIBN
89
GND
16
HSOP
17
SVDDL
18
HSIP
19
HSIN
20
AVDDH3
21
RESERVED
22
DVDDIO_2_1
38
M1P_RXD
3
39
M1P_RXD2
40
M1P_RXD
1
41
M1P_RXD0
42
M1P_RXD
V
43
M1P_RXCLK
44
M1P_TXCLK
60
LAN1LED0/MID29
61
LAN1LED1
62
EN_PHY
63
SMI_SEL
64
AVDDH4
65
XTALO
66
XTALI
67
*RESET
68
*SPIS_CSI
69
MDC
70
MDIO
71
SPIS_DO
72
AVDDH
5
73
LAN1MDIAP
R238
R257
R241
1
8
27
36
45
R240
R263
18
27
36
45
R264
DG
R266
DG
C297
DG
R265
L212
L213
C266
100p
DG
LAN port(JK201)
C202
R209
C201
PoE_G
C207
R210
C203
R211
C205
C206
R212
C208
PoE_DC
R213
C220
C219
R214
R206
C217
C216
R205
C215
C214
PoE_G
PoE_G
C213
R204
C211
PoE_G
C210
R202
DG
D218
L202
R201
C221
R208
R207
Q202
IC202
1
VAUX
2
CT1
6
VDD48I
3
CT2
4
SP1
5
SP2
7
GND1
8
VDD5
9
RCURR
10
RCLASS
11
LVMODE
12
FB
13
COMP
14
CSS
15
CS
21
GND2
20
VDD48O
19
PDRV
18
VBP
17
VBN
16
NDRV
C293
Q203
UVLO=36V
Signature
Detection
Classification
Current Sense
<- DC Power
Output voltage
feedback
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