Specifications
p
age
8 of 18
BL
-
M7668BU4
IEEE 802.11a/b/g/n/ac 2T2R USB WIFI Module&BT2.1+EDR/4.2/5.0
Modul
e
&BT2.1+EDR/4.2
/
5.0
Modul
e
&BT2.1+EDR/4.2
/
5.0
R
ese
t
C
19
NI
/
10pF
C0201
R2
R
S
T
_N
3
.
3V
10K
-
ohm
R0201
3
2.5
U7
XO
1
4
2
C44
E3SB40E00010DE
NI
/
0.5pF
C0201
3
.
3V
3
.
3V
A
N
T
SEL2
R
23
R
26
NI
/
10K-ohm
NI
/
10K-ohm
R0201
R0201
UART_TXD
USB
2.
0
Part
Di
f
f
90
ohm
[4]
USBDM
USBDM
[4]
USBDP
USBDP
76
BT_H OST_WAKE
75
3D_SYNC
74
UART_ TXD1
73
UART_ RXD1
72
PCM _OUT1
Buck_1V3_OUT
Pin 64
WF1AFE_1V3_IN
Pin 63
AVDD13_RXFE_BT
C128
10pF
C0201
C61
0.1uF
C0402
3.3V
Function:
1.
GPIO0
=3DVsync
2.
BGF_INT_B =
WOBLE
3.
WIFI_INT_B =
WOWLAN
4.
PMU_EN =
RESET#
DVDD11
C51
1uF
C0402
Pin 68
DVDD_1V1_IN
TP24TP23TP22TP21
Pin 61
BT_3V3_IN
C40
NI / 10pF
C0201
Pin 59
C166
100pF
C0201
C32
1uF
C0402
AVDD22
Buck_1V3_OUT
C18
10nF
C0201
Pin 58
AVDD18
C59
NI / 0.1uF
C0201
Pin 10
DVDD11
C48
NI / 1uF
C0201
Pin 7
AVDD18
Pin 4
C58
0.1uF
C0402
WIFI_HOST_WAKE (LOW ACTIVE)1
U6
MT7668AU
WIFI_INT_B
57
GPIO1
3.3V
C42
10pF
3.3V
XTAL
3.3V
USB_1V8_IN
C31
1uF
C0402
Pin 13
USB_3V3_IN
SSUSB_1V1_IN
SSUSB_1V8_IN
USBDP
USBDM
2
PCIE_CKRXN
3
PCIE_CKRXP
4
AVDD18_SSUSB
5
SSUSB_TXN
6
SSUSB_TXP
7
AVDD10_SSUSB
8
SSUSB_RXN
9
SSUSB_RXP
10
AVDD18_USB
11
USB_DP
12
USB_DM
OSC_EN
WF1_RFIO_G
AVDD33_WF1_PA_G
WF1_LNA_EXT_G
WF1_LNA_EXT_A
WF1_RFIO_A
AVDD33_WF1_A_PA
AVDD33_WF1_A_TX
AVDD33_WF0_PA_G
WF0_RFIO_G
WF0_LNA_EXT_G
56
55 WF1_RFIO_G
54
53
52
51 WF1_RFIO_A
50
49
48
47 WF0_RFIO_G
46 WF0_LNA_EXT_G
WF1_RFIO_G
WF1_RFIO_A
WF0_RFIO_G
WF0_LNA_EXT_G
3.3V
C0201
C39
10pF
C0201
Pin 49 50
WF1A_TX_3V3
C140
NI / 10pF
C0201
C71
2.2uF
C0603
Pin 14
DVDD11
13
AVDD33_USB
45
WF0_LNA_EXT_A
3.3V
DVDD_1V1_IN
PMU_EN
14
DVDD
15
PMU_EN
WF0_RFIO_A
AVDD33_WF0_A_PA
44 WF0_RFIO_A
43
WF0_RFIO_A
C41
3.3V
AVDD25_V2P5NA 16
AVDD25_V2P5NA
42
AVDD33_WF0_A_TX
10pF
C0201
3.3V
C165
4.7uF
C0603
C24
0.1uF
C0402
17
LX 18
19
AVDD33_BUCK
LX
AVSS33_BUCK
ANTSEL0
ANTSEL2
ANTSEL3
41
40 ANTSEL2
39
Pin 48
WF0G_PA_3V3
3.3V
Buck_1V3_OUT
L10
C37
10pF
C38
NI / 10pF
C70
2.2uF
R32
10K-ohm
R0201
C72
NI / 10pF
C0201
1 2
C26 SPM25202R2MPCC
10uF
C0603
Buck_1V3_OUT
C0201
Pin 42
WF0A_TX_3V3
C0201 C0603
Pin 43
WF0A_PA_3V3
DVDD11
TP20
AVDD22
C167
100pF
C0201
C25
10nF
C0201
C45
2.2uF
C0603
C46
1uF
C0402
AVDD22
AVDD18
C27
1uF
C0402
C47
1uF
C0402
3.3V
Buck_1V3_OUT
C30
Pin 26
Pin 32
WF0AFE_1V3_IN
C60
0.1uF
4.7uF
MISC_3V3_IN
C0603
C0402
AVDD22
Pin 30
DVDD_1V1_IN
DVDD11
C52
1uF
C0402
Pin 27
ALDO_2V2_Out
VBUS
VOUT Range 0.6V to Vin
3.3V
CON4
WIFI_REG_ON
R109
1
R / 000 / ohm / 0201 / 5%
R101
R / NC / ohm / 0201 / 5%
Reset_Module (LOW ACTIVE)
VBUS
VIN Range
2.8V to
5.5V
4
VIN
3
LX
2
L23
VSW
1
2
3.3V
BT_HOST_WAKE
VCC(5V)
2
R3
R / ohm / 0201 / 5%
3
VBUS
R100 R / 0 / ohm / 0402 / 5%
R / 10k / 0201 / 5%
R105
R106
5
GND
1
SPM25202R2MPCC
4
U2D-
R / NC/ ohm / 0201 / 5%
R102
FB EN
U8 BL
Reset_Module (LOW ACTIVE)
C63
4.7uF
C0603
DM
5
DP
6
GND
R99 R / 0
U2D+
10P
4
10P
USBDM
[3]
USBDP
[3]
3.3V
C64
R / 100k / 0402 / 1%
C65
NI / 22pF
C0402
7
GND
8
C0201 C0201
3D_SY NC
4.7uF
C0603
R5
R0402
REG_FB
R6
3D_SY NC
9
Reset
10
WLAN_DEV_WAKE
PMU_EN (LOW ACTIVE)
WIFI_HOST_WAKE (LOW ACTIVE)
R / 10K/ ohm / 0201 / 5%
R107
R108
R / NC/ ohm / 0201 / 5%
C66
NC
C0402
R / 82 / K / 0402 / 1%
R0402
R / 365 / K / 0402 / 1%
R0402
USB_1.25mm_10pin
R / 10K/ ohm / 0201 / 5%
R103
R104
R / NC/ ohm / 0201 / 5%
3.3V
R1
R
2
3.3V
77
EPAD
20
21
22
23
24
25
AVDD13_CLDO
BGF_INT_B
AVDD13_CLD0
GPIO0
CLDO
UART_ TXD
CLDO
UART_ RXD
VREF
VREF PHYL DO
AVDD33_MISC
ALDO
DVDDIO_ANTSEL
DVDD
ANTSEL1
AVDD13_WF0_AFE
PCM_OUT
PCM_I N
DVDDIO
DVDD
PCM_ CLK
PCM_SYNC
PDET0
PDET1
71
PCM_ IN1
26
70
3.3V
69
27
3.3V
28
68
29
30
31
32
XO
33
34
1ANTSEL5
36
67
66
65
64
63
XO_OUT
AVDD13_WF1_AFE
K
eepout
L
2
&
R
ef
XO
AVDD13_RXFE_BT
62
RFIP_BT
61
RFIP_BT
AVDD22_XO
RFIP_BT
ANTSEL5
ANTSEL4
AVDD22_WF0
AVDD13_WF0_TRX
AVDD33_BT
SYSRST_B
AVDD22_WF1
AVDD13_WF1_TRX
60
RST_N
59
37
38
58
/ ohm /
0402 /
5
%
C
PDF pdfFactory Pro www.fineprint.cn