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HCD-ECL77BT/ECL99BT
HCD-ECL77BT/ECL99BT
5-8.
SCHEMATIC DIAGRAM - MAIN Board (5/8) -
1
2
MAIN BOARD
(5/8)
A
BT_3V3
R275
R275
R276
R276
2.2K
2.2K
2.2K
2.2K
CP_SCL
R111
R111
33
33
CP_SDA
R69
R69
33
33
NFC_BT
B
BT_3V3
U18
U18
1
AIO1
2
AIO0
BT_RESET
R273
R273
1K
1K
3
RESET
4
GND
5
PIO9
6
PIO1 0
7
PIO11
8
PIO12
9
PIO13
BT_3V3
10
PIO14
11
PIO15
12
GND
13
R104
R104
0
0
STB_3.3V
VDD
14
VDD_USB
15
TP46
TP46
+1V8
16
GND
17
USB_DP
18
USB_DN
C
BT_RX
R267
R267
33
33
BT_TX
R269
R269
33
33
BT_I2S_IN
TP44
TP44
BT_LRCK
TP47
TP47
BT_BCLK
TP48
TP48
BT_I2S_OUT
TP49
TP49
D
C275
C275
"18PF/5%"
"18PF/5%"
D17
D17
BAT54S
BAT54S
C456
C456
NC/15PF
NC/15PF
D16
D16
2PIN/2.0mm
2PIN/2.0mm
BAT54S
BAT54S
1
1
2
C278
C278
"18PF/5%"
"18PF/5%"
2
XP8
XP8
E
NFC(RC-S712) MODULE APPLICATION
26
3
4
Bluetooth pattern antenna
TP61
TP61
TP45
TP45
C123
C123
5pF/50V/NP0
5pF/50V/NP0
ANT
R249
R249
R231
R231
GND
NC/0
NC/0
NC/0
NC/0
SPK_LP
R291
R291
TP42
TP42
C558 NC/33pF/50V/NP0
C558 NC/33pF/50V/NP0
48
GND
47
C559 NC/33pF/50V/NP0
C559 NC/33pF/50V/NP0
MIC_A_N
46
MIC_A_P
45
C560 NC/33pF/50V/NP0
C560 NC/33pF/50V/NP0
MIC_B_N
44
MIC_B_P
43
C561 NC/33pF/50V/NP0
C561 NC/33pF/50V/NP0
MIC_BIAS
42
GND_S
BT_BM153
BT_BM153
41
C309 4.7uF/10V/X5R
C309 4.7uF/10V/X5R
SPK_RP
SPK_R_P
40
C310 4.7uF/10V/X5R
C310 4.7uF/10V/X5R
SPK_RN
SPK_LN
R292
R292
SPK_R_N
39
C311 4.7uF/10V/X5R
C311 4.7uF/10V/X5R
SPK_LP
SPK_L_P
38
C312 4.7uF/10V/X5R
C312 4.7uF/10V/X5R
SPK_LN
SPK_L_N
37
GND
36
LED0
35
LED1
34
VDD_CHG
33
LED_BLUE
GND
32
VDD_BAT
BT_3V3
31
VRE_IN
SPK_RP
R301
R301
for debug
BT_3V3
GND
CSB
BT_CLK
SPK_RN
R290
R290
MOSI
MISO
STB_3.3V
STB_3.3V
R134
R134
4.7K
4.7K
R92
R92
20K
20K
TP56
TP56
NFC_INT
R93
R93
20K
20K
C284
C284
NPN_3DG3904M
NPN_3DG3904M
1000pF/50V/X7R
1000pF/50V/X7R
C287
C287
NFC
R106
R106
2.2K
2.2K
Q9
Q9
47pF/50V/NP0
47pF/50V/NP0
R105
R105
C290
C290
100K
100K
100pF/50V/NP0
100pF/50V/NP0
NFC
R452
R452
C294
C294
100pF/50V/NP0
100pF/50V/NP0
26
5
6
7
+12VA
R299 22K
R299 22K
REF
10K/1%
10K/1%
R289
R289
10K/1%
10K/1%
+ +
+ +
CE545
CE545
100uF/16V
100uF/16V
100uF/16V
100uF/16V
C272 100pF/50V/NP0
C272 100pF/50V/NP0
C289
C289
A
A
1000pF/50V/X7R
1000pF/50V/X7R
C308
C308
A
6
4.7uF/10V/X5R
4.7uF/10V/X5R
7
BT_L
BT_L
10K/1%
10K/1%
5
AS4558M
AS4558M
R288
R288
C473
C473
U406B
U406B
4700pF/50V/X7R
4700pF/50V/X7R
10K/1%
10K/1%
C305
C305
REF
+12VA
A
10K/1%
10K/1%
R311
R311
10K/1%
10K/1%
C273 100pF/50V/NP0
C273 100pF/50V/NP0
C274
C274
1000pF/50V/X7R
1000pF/50V/X7R
C307
C307
A
2
4.7uF/10V/X5R
4.7uF/10V/X5R
1
BT_R
BT_R
3
10K/1%
10K/1%
AS4558M
AS4558M
C472
C472
R287
R287
C293
C293
U406A
U406A
4700pF/50V/X7R
4700pF/50V/X7R
10K/1%
10K/1%
REF
+12VA
A
R174
R174
NC/100K
NC/100K
D11
D11
LL4148
LL4148
Q545
Q545
PNP_MMBT8550C
PNP_MMBT8550C
R173
R173
100K
100K
NFC_BT
R146
R146
TP57
TP57
R135
R135
100K
100K
10K
10K
R171
R171
470K
470K
NPN_3DG3904M
NPN_3DG3904M
2.2K
2.2K
Q18
Q18
R172
R172
100K
100K
8
R103
R103
2.2
2.2
V_12V
CE546
CE546
CP_SCL
CP_SCL
10
CP_SDA
10
CP_SDA
BT_TX
8
BT_TX
BT_RX
8
BT_RX
BT_RESET
8
BT_RESET
LED_BLUE
8
LED_BLUE
BT_R
BT_R
6
BT_L
BT_L
6
NFC_INT
NFC_INT
10
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