Automotive Module Series
AG525R-GL QuecOpen
Hardware Design
AG525R-GL_QuecOpen_Hardware_Design 66 / 104
PCIE_TX_M
PCIE_TX_P
PCIE_RST
PCIE_RX_P
COEX_UART_ RXD
BT_UART_TXD
BT_UART_CTS
PCM_SYNC
Module
PCIE_REFCLK_M
PCIE_REFCLK_P
PCIE_WAKE
PCIE_CLKREQ
PCM_CLK
PCIE_RX_M
COEX_UART_ TXD
BT_UART_RXD
BT_UART_RTS
PCM_IN
PCM_OUT
WLAN_EN
BT_EN
WLAN_SLP_CLK
WLAN_PWR_EN1
WLAN_PWR_EN2
PCIE_CLKREQ_N
WLAN&BT PHY
PCIE_WAKE
PCIE_RST
PCIE_REFCLKP
PCIE_REFCLKM
PCIE_RXM
PCIE_RXP
PCIE_TXP
PCIE_TXM
COEX_UART_ RXD
COEX_UART_ TXD
BT_UART_TXD
BT_UART_RXD
BT_UART_CTS
BT_UART_RTS
PCM_CLK
PCM_SYNC
PCM_IN
PCM_OUT
WLAN_EN
BT_EN
SLEEP_CLK
R1
100K
R2
100K
VDD_EXT
WLAN_PWR_EN1
WLAN_PWR_EN2
VDD_WIFI_VM
VDD_WIFI_VH
VDD_WIFI_VM
VDD_WIFI_VH
C1
100 nF
C2
100 nF
C3
100 nF
C4
100 nF
Figure 29: Reference Circuit for Connection with WLAN&BT PHY
T
o ensure the signal integrity of PCIe interface, C1 and C2 should be placed close to the module.
C3 and
C4 should be placed close to the PHY.
The extra stubs of trace must be as short as possible.