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PDF RTL8188ER-CG Data sheet ( Hoja de datos )
| Número de pieza | RTL8188ER-CG | |
| Descripción | SINGLE-CHIP IEEE 802.11b/g/n 1T1R WLAN | |
| Fabricantes | Realtek | |
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RTL8188ER-CG
SINGLE-CHIP IEEE 802.11b/g/n 1T1R WLAN
DATASHEET
(CONFIDENTIAL: Development Partners Only)
Rev. 0.3
22 May. 2012
Track ID:
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
1 page  
RTL8188ER
Datasheet
1. General Description
The Realtek RTL8188ER is a highly integrated single-chip 802.11n Wireless LAN (WLAN) network PCIe
interface (PCIe 1.0/1.0a/1.1 compliant) controller. It combines a WLAN MAC, a 1T1R capable WLAN
baseband, and WLAN RF in a single chip. The RTL8188ER provides a complete solution for a high
throughput performance integrated wireless LAN device.
The RTL8188ER WLAN baseband implements Orthogonal Frequency Division Multiplexing (OFDM)
with 1 transmit and 1 receive path and is compatible with the IEEE 802.11n specification. 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 RTL8188ER WLAN Controller 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.
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 RTL8188ER WLAN Controller 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 RTL8188ER WLAN 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
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with PCIe Interface
1
Track ID: JATR-2265-11 Rev. 0.3
5 Page 
Figure 3. Single-Band 11n (1x1) dual antenna Solution
4. Pin Assignments
RTL8188ER
Datasheet
GPIO7
GPIO4
GPIO0/WLAN_ACT
GPIO2/BT_STATE
GPIO3/BT_PRI
GPIO1/ SPS/LDO_SEL
VD33D
VD33D
VD12D
GPIO6
ANT_SEL_P/LED0
TRSWN
TRSWP
PAPE
42 41 40 39 38 37 36 35 34 33 32 31 30 29
43 28
44 27
45 26
46 25
47 24
48 RTL8188ER 23
49 22
50 21
51 20
52 19
53 LLLLLLL TXXXV 18
54 17
55
57 GND (Exposed Pad)
56
16
15
1 2 3 4 5 6 7 8 9 10 11 12 13 14
LX_SPS
GND
PERSTN
CLKREQn
WAKEn
VD12D
ANT_SEL_2
ANT_SEL_N/LED1
NC
GPIO8/CK_OUT
VD12A
VD33A
XI
XO
Figure 4. Pin Assignments
4.1. Package Identification
„Green‟ package is indicated by a „G‟ in the location marked „T‟ in Figure 4.
5. Pin Descriptions
The following signal type codes are used in the tables:
I: Input
T/S: Tri-State bi-directional input/output pin
O: Output
S/T/S: Sustained Tri-State
Single-Chip IEEE 802.11b/g/n 1T1R WLAN Controller
with PCIe Interface
7
Track ID: JATR-2265-11 Rev. 0.3
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet RTL8188ER-CG.PDF ] | |
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