User's Manual

RTL8822CE
Datasheet
Single-Chip 802.11 ac/a/b/g/n 2T2R WLAN Controller
with PCI-E Interface
10
Track ID: Rev. 0.1
Symbol
Type
Pin No
Description
Voltage
REFCLK_N/REFCL
K_P
I
47,48
PCI Express Differential Reference Clock Source: 100MHz ± 300ppm
CLKREQ#
I/O/D
33
Reference Clock Request Signal.Also used by L1 PM substates.
This signal is used by the RTL8822CE to request for the PCI Express
reference clock.
3.3V
WAKE#
O/D
32
Power Management Event: Open drain, active low.
Used to reactivate the PCI Express slot’s main power rails and reference
clocks.
This WAKE# can be shared with BT wake up host function via sideband
signals.
3.3V
PERST#
I
31
PCI Express Reset Signal: active low.
When the PERST# is asserted at power-on state, the RTL8822CE returns to
a pre-defined reset state and is ready for initialization and configuration
after the de-assertion of the PERST#.
3.3V
5.3. USB Transceiver Interface
Table 3. USB Transceiver Interface
Symbol
Type
Pin No
Description
HSDP
IO
56
High-Speed USB D+ Signal
HSDM
IO
57
High-Speed USB D- Signal
5.4. RF Interface
Table 4. RF Interface
Symbol
Type
Pin No
Description
RFIO_BT
I/O
76
BT RF input/output.
RFI_WL2G_S1
I
3
WLAN 2G RF input for path S1 in external LNA/FEM configuration
RFIO_WL2G_S1/BT
I/O
O
4
(1) RF input/output of BT and path S1 WLAN 2G. (TDM for Tx) (LNA
sharing for Rx)
(2) Or RF output of path S1 WLAN 2G in external PA/FEM configuration
TSSI_S1
I
6
TSSI input from external PA/FEM
RFI_WL5G_S1
I
7
WLAN 5G RF input for path S1 in external LNA/FEM configuration
RFIO_WL5G_S1
I/O
O
9
(1) WLAN 5G RF input/output for path S1
(2) Or WLAN 5G RF output for path S1 in external PA/FEM configuration
RFI_WL2G_S0
I
11
WLAN 2G RF input for path S0 in external LNA/FEM configuration
RFIO_WL2G_S0
I/O
O
12
(1) RF input/output of path S0 WLAN 2G
(2) Or RF output of path S0 WLAN 2G in external PA/FEM configuration
TSSI_S0
I
14
TSSI input from external PA/FEM
RFIO_WL5G_S0
I/O
O
17
(1) WLAN 5G RF input/output for path S0
(2) Or WLAN 5G RF output for path S0 in external PA/FEM configuration