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PDF RTL8188RE-GR Data sheet ( Hoja de datos )
| Número de pieza | RTL8188RE-GR | |
| Descripción | Single Chip IEEE 802.11b/g/n 1T1R WLAN Controller w/PCI Express Interface | |
| Fabricantes | Realtek | |
| Logotipo |  |
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RTL8188RE-GR
SINGLE-CHIP IEEE 802.11b/g/n 1T1R WLAN
CONTROLLER w/PCI EXPRESS INTERFACE
DATASHEET
(CONFIDENTIAL: Development Partners Only)
Rev. 1.0
28 May 2010
Track ID: JATR-2265-11
Realtek Semiconductor Corp.
No. 2, Innovation Road II, Hsinchu Science Park, Hsinchu 300, Taiwan
Tel.: +886-3-578-0211. Fax: +886-3-577-6047
www.realtek.com
Datasheet pdf - http://www.DataSheet4U.net/
1 page  
www.DataSheet.co.kr
RTL8188RE
Datasheet
1. General Description
The Realtek RTL8188RE-GR is a highly integrated single-chip Wireless LAN (WLAN) PCI Express
network interface controller compatible with the 802.11n specification. It combines a MAC, a 1T1R
capable baseband, and RF in a single chip. The RTL8188RE provides a complete solution for a high
throughput performance wireless client.
The RTL8188RE baseband implements Orthogonal Frequency Division Multiplexing (OFDM) with 1
transmit and 1 receive path and is compatible with the IEEE 802.11n specification 2.0. Features include one
spatial stream transmission, short guard interval (GI) of 400ns, spatial spreading, and transmission over
20MHz and 40MHz bandwidth.
For legacy compatibility, Direct Sequence Spread Spectrum (DSSS), Complementary Code Keying (CCK)
and OFDM baseband processing are included to support all IEEE 802.11b and 802.11g data rates.
Differential phase shift keying modulation schemes, DBPSK and DQPSK with data scrambling capability,
are available, and CCK provides support for legacy data rates, with long or short preamble. The high-speed
FFT/IFFT paths, combined with BPSK, QPSK, 16QAM, and 64QAM modulation of the individual
subcarriers and rate compatible punctured convolutional coding with coding rate of 1/2, 2/3, 3/4, and 5/6,
provide higher data rates of 54Mbps and 150Mbps for IEEE 802.11g and 802.11n OFDM respectively.
The RTL8188RE builds in an enhanced signal detector, an adaptive frequency domain equalizer, and a
soft-decision Viterbi decoder to alleviate severe multi-path effects and mutual interference in the reception
of multiple streams. Robust interference detection and suppression are provided to protect against
Bluetooth, cordless phone, and microwave oven interference.
Efficient IQ-imbalance, DC offset, phase noise, frequency offset, and timing offset compensations are
provided for the radio frequency front-end. Selectable digital transmit and receive FIR filters are provided
to meet transmit spectrum mask requirements and to reject adjacent channel interference, respectively.
The RTL8188RE supports fast receiver Automatic Gain Control (AGC) with synchronous and
asynchronous control loops among antennas, antenna diversity functions, and adaptive transmit power
control function to obtain the better performance in the analog portions of the transceiver.
The RTL8188RE MAC supports 802.11e for multimedia applications, 802.11i for security, and 802.11n for
enhanced MAC protocol efficiency. Using packet aggregation techniques such as A-MPDU with BA and
A-MSDU, protocol efficiency is significantly improved. Power saving mechanisms such as Legacy Power
Save, and U-APSD, and APSD, reduce the power wasted during idle time, and compensates for the extra
power required to transmit OFDM. The RTL8188RE provides simple legacy and 20MHz/40MHz
co-existence mechanisms to ensure backward and network compatibility.
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with PCI Express Interface
1
Track ID: JATR-2265-11 Rev. 1.0
Datasheet pdf - http://www.DataSheet4U.net/
5 Page 
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5.3. Power Pins
Symbol
LX
VD33A
VD33D
VD15A
VD15D
VD12A
VD12D
GND
RETX
Type
P
P
P
P
P
P
P
P
P
Table 3. Power Pins
Pin No
Description
7 Switching Regulator Output
1, 6, 19, 27, 37 VDD 3.3V for Analog
5 VDD3.3V for Digital
22, 26, 39
VDD 1.5V for Analog
54 VDD 1.5V for Digital
40, 62
Analog 1.2V Regulator Output
9, 53
Digital 1.2V Regulator Output
8, 61
Ground
38 24k (1%) Precision Resistor for Bandgap
RTL8188RE
Datasheet
5.4. RF Interface
Symbol
TRSWN[0]/GPIO8/LED2
Type
O
PAPE[0]
TRSWP[0]
TX2G_ON[0]
TX2G_OP[0]
RX2G_IP[0]
RX2G_IN[0]
ANT_SEL_P/LED0
O
O
O
O
I
I
O
ANT_SEL_N/LED1
O
Table 4. RF Interface
Pin No Description
4 Transmit/Receive Path Select 0
Shared with LED2; can be selected by control register
17 2.4GHz Transmit Power Amplifier Power Enable 0
18 Transmit/Receive Path Select 0
20 RF TX0 Negative Signal
21 RF TX0 Positive Signal
23 RF RX0 Positive Signal
24 RF RX0 Negative Signal
35 Antenna Control Positive Signal
Shared with LED0; can be selected by control register
36 Antenna Control Negative Signal
Shared with LED1; can be selected by control register
5.5. LED Interface
Symbol
LED0/ANT_SEL_P
Type
O
LED1/ANT_SEL_N
O
LED2/TRSWN[0]/GPIO8 O
Table 5. LED Interface
Pin No Description
35 LED Pins (Active Low)
Shared with ANT_SEL_P; can be selected by control register
36 LED Pins (Active Low)
Shared with ANT_SEL_N; can be selected by control register
4 LED Pins (Active Low)
Shared with TRSWN[0] or GPIO8, can be selected by control register
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with PCI Express Interface
7
Track ID: JATR-2265-11 Rev. 1.0
Datasheet pdf - http://www.DataSheet4U.net/
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