Schematics

5
5
4
4
3
3
2
2
1
1
D D
C C
B B
A A
Note: 51-4
Note: 51-3
Please refer to MT6762 Baseband design notice for VCN33 LDO selection guide
Note 51-2:
If WiFi 5G were no need, VCN33 could be chosen from PMIC output (VCN33_PMU)
For R5015 size, please select 0402 size or larger one
Schematic design notice of "51_CONNECTIVITY_CONSYS_MT6631"
Note 51-1:
Note 51-5:
If WiFi 5G not support, connect pin 34(WF_RF_5G) to GND
Note 51-3:
Pin 36 (AVDD28_FM) must be connected to VCN28 even if FM not support
Note 51-4:
MT6631N
Close to
MT6631
MT6631N/A
WF _CT RL1
4
WF _CT RL2
4
BT_ DATA
4
BT_ CLK
4
WF _CT RL0
4
WF _IP
4
WF _IN
4
BT_ IP
4
WF _QN
4
BT_ IN
4
GPS _I
4
WF _QP
4
GPS _Q
4
CONN_ HRST _B 4
BT_ QP
4
CONN_ TOP _DA TA 4
CONN_ WB _PT A 4
BT_ QN
4
CONN_ XO_ IN_B B
4
CONN_ TOP _CL K 4
PMIC _CL K_W CN
9
RF_ GPS _RX _W CN 79
RF_ WF 5G_TX_W CN 78
RF_ WF 5G_PDET 7 8
RF_ WF 5G_RX_W CN 7 8
AVD D18 _W BT
77
AVD D18 _GP S
77
FM_A VDD 28
77
AVD D33 _W BT
77
VCN1 8_P MU
8
VCN2 8_P MU
8,79
AVD D18 _W BT 77
AVD D18 _GP S 77
FM_A VDD 28 77
AVD D33 _W BT77
VCN3 3_P MU
8
FM_A NT_N 48
FM_A NT_P 4 8
RF_ WF 2G_TX_W CN 78
Size
DES IGNER:
Shee t of
DOC UMENT NO .:
DEP ART MENT:
D
77 48
V10
Page Name = 77_WCN_MT6631
Page Modif y Date = Friday, Fe bruary 11 , 202 2
DEP ART MENT = WI NGTE CH-SZ DES IGNE R = PE NGLI ZHONG
Design Name = 98829_1_11M12_20220404_1150
Size
DES IGNER:
Shee t of
DOC UMENT NO .:
DEP ART MENT:
D
77 48
V10
Page Name = 77_WCN_MT6631
Page Modif y Date = Friday, Fe bruary 11 , 202 2
DEP ART MENT = WI NGTE CH-SZ DES IGNE R = PE NGLI ZHONG
Design Name = 98829_1_11M12_20220404_1150
Size
DES IGNER:
Shee t of
DOC UMENT NO .:
DEP ART MENT:
D
77 48
V10
Page Name = 77_WCN_MT6631
Page Modif y Date = Friday, Fe bruary 11 , 202 2
DEP ART MENT = WI NGTE CH-SZ DES IGNE R = PE NGLI ZHONG
Design Name = 98829_1_11M12_20220404_1150
JP7 704 JP-COPPER-0 201
C77 04 10 0pF ;5%;5 0V;0 201
C77 01
0.1uF ;20% ;6.3V ;020 1
JP7 703 JP-COPPER-0 201
L77 05
L02 01_ NF
R77 21
16K ;5%;0 201
L77 12
120 oHM;50 0mA ;040 2
C7713 1.0UF;20%;6.3V;0201
C77 03 4.7 UF;10 %;10 V;04 02
L77 09
9.1NH;3 %;02 01
C77 11
470 0pF ;20%;6.3V ;0201
C7714
100pF;5%;50V;0201
C77 18
1.0UF ;20% ;6.3V ;020 1
C77 24
100 pF;5 %;50 V;02 01
C77 19
1.0UF ;20% ;6.3V ;020 1
R77 68
0;1A ;040 2
JP7 702 JP-COPPER-0 201
JP7 701 JP-COPPER-0 201
C77 02
100 pF;5 %;50 V;02 01
C77 07
0.01 uF;10 %;25 V;02 01
R77 24
51K ;5%;0 201
MT6631
U770 2
MT66 31N/B
AVDD28_FSOURCE
1
TOP_CLK
4
CEXT
6
GPS_IP
12
GPS_QP
10
GPS_IN
11
GPS_RFIN
39
WF_CTRL 0
23
WF_R F_5G
34
HRST_B
2
FM_LANT_P
38
AVDD28
36
FM_LANT_N
37
GPS_QN
9
XO_IN
8
WF_CTRL 1
22
WF_CTRL 2
21
WF_I P
20
WF_VDET _2G
29
AVDD33_WBT
33
NC1
32
BT_DAT A
25
WF_AUX_ 2G
30
WF_AUX_5G
35
AVDD18_WBT1
26
WB_RF_2G
31
WF_VDET _5G
28
BT_CLK
24
BT_QP
14
TOP_DATA
3
AVDD18_WBT2
27
BT_IN
15
AVDD18
40
NC2
7
WB_PTA
5
BT_QN
13
WF_QN
17
WF_QP
18
WF_I N
19
BT_IP
16
DVSS
41
L77 04
L02 01_ NF
GPS _Q
RF_ WF 5G_PDET_ MATC H