Bluetooth Section Description (M201) - LG KG245 Service Manual

3. TECHNICAL BRIEF

3.15 Bluetooth Section Description (M201)

BLUETOOTH
R228
330
BT_EN
2V8_VBT
5
1
VCC
PCM_TX
4
3
USC3
GND
U205
2
TC7SH08FS
1) U203(BH28FB1WHFV) : Provide power for bluetooth block
2) U205(TC7SH08FS) : PCM Sync Clock rate converter for bluetooth clock(8kHZ)
3) U206(MAX4717EBC-T) : Analog switch for bluetooth block
4) M201(LBMA-2C67B2) : Bluetooth module
VBAT
U203
VIN VOUT
3 4
GND BGND
2 6
STBY NC
1 5
BH28FB1WHFV
C232 C231 C230
0.1u 2.2u 15p
2V8_VMEM
C236
0.1u
PCM_SYNC8
C240
0.1u
C2 C4
PCM_EN
IN1 NO1
A2 A4
IN2 NO2
C3 C1
USC1
COM1 NC1
A3 A1
USC2
COM2 NC2
R240
U206
10K
MAX4717EBC-T
Figure 3-29. BLUETOOTH CIRCUIT
2V8_VBT
C233 C234
2.2u 15p
16
_BT_RST RESETB
C237
1
NA
PIO0
2
PIO1
7
PIO2
8
PIO3
9
PIO4
10
PIO5
PCM_RX
28
NC
PCM_TX
13
USC_1 SPI_CLK
14
SPI_CSB
12
USC_2 SPI_MOSI
15
SPI_MISO
LBMA-2C67B2
- 46 -
ANT201
GND1
R227
FEED GND2
0
AMAN542015LG02
L201 C248 (SNGF0008801)
NA NA
2V8_VBT
22
VDD_1_8V
21
VDD_DIG
3
VDD_VREGIN
L202
C249
4
22nH
15p
GND1
6
GND2
11
GND3
25
GND4
R232 47
27
UART_TX DEBUG_RX
R233 47
24
UART_RX DEBUG_TX
23
UART_RTS
26
UART_CTS
19
R235 47
PCM_IN PCM_TX
R236 47
17
PCM_OUT PCM_RX
18
R237 47
PCM_SYNC PCM_SYNC8
20 R238 47
PCM_CLK USC0
M201
C238 C239
2.2u 2.2u