Figure 3-48. Bluetooth/Controller Interface With Clock Sources; Figure 3-49. Bluetooth Functional Block Diagram - Motorola APX 5000 Service Manual

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Theory of Operation
: Bluetooth
Bluetooth Block
OPT_BD_GPIO_0_OPT_RST
OPT_BD_GPIO_5(OMAP GPIO7)
APX 5000/
APX 6000/
APX 6000XE/
SRX2200
VOCON Board
80-pin
connector
The Bluetooth IC transceiver is connected to a dedicated Bluetooth antenna. Between the IC and
antenna is a band-pass filter as sown in is shown in
OMAP_GPIO7
APX 5000/ APX 6000/
APX 6000XE/ SRX2200
Expansion Board
80-PIN CONNECTOR
SW_B+
SW_B+
GROUND
UC3_RESET
BT_PTT
USB_BOOT
OPT_BD_GPIO_2
AVR_STATUS_1.8
OMAP P18
AC_SPKR_UNMUTE_1.8
OMAP K15
OPT_BD_DETECT
OPT_BD_GPIO_4
BT_SPARE_1.8
OMAP K14
CPLD GPIO 29
OPT_USB_DP
OPT_USB_DM
SSI_CLK
SSI_FSYNC
SSI_BLACK_RX
SSI_RED_RX
SSI_BLACK_TX
SSI_RED_TX

Figure 3-48. Bluetooth/Controller Interface with Clock Sources

USB1
USB
BT_PTT
GPIO
USART0
BT_HCI
SSI
PCM_AUD

Figure 3-49. Bluetooth Functional Block Diagram

M8
RESET_N
J2
PB17 (GPIO49)
VOLTAGE
D10
PA20 (GPIO20)
TRANSLATION
B10
1.8V - 3.3V
PA21 (GPIO21)
A2
PB07 (GPIO39)
VOLTAGE
C3
TRANSLATION
PA29
1.8V - 3.3V
F1
PA30
BT_SPARE_DIR
E12
VBUS
D11
DP
D12
DM
AUD_CLK
AUD_FSTNC
AUD_IN
AUD_OUT
26 MHz TCXO
Figure 3-49.
SPI0
USART1
TIMER1
GPIO
ATMEL AVR32
AT32UC3A0512
USART1 TX
TC1 OCA
GPIO
GPIO
BT_WAKE
BT_EN
BT_RF
TI NL5500
Bluetooth/GPS
16 MB
SDRAM
ATMEL AVR32
AT32UC3A0512
12 MHz
NL5500
BT/GPS
32.768
KHz
SPI
UART
NFC
BLOCK
TX_CLK
WAKEUP
ANTENNA
LF
Antenna
BT
Antenna
2.45 GHz BPF
3-67

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