Datenblatt-pdf.com

GW3887AIKZ-TK Schematic ( PDF Datasheet ) - Conexant

Teilenummer GW3887AIKZ-TK
Beschreibung Wireless LAN Integrated Medium Access Controller
Hersteller Conexant
Logo Conexant Logo 




Gesamt 12 Seiten
GW3887AIKZ-TK Datasheet, Funktion
GW3887A
Wireless LAN Integrated Medium Access Controller with
Baseband Processor
The Conexant GW3887A Wireless LAN Integrated Media Access Controller
with Baseband Processor is part of both the PRISM GT™ single band and
PRISM WWR™ dual band radio chip sets. The GW3887A directly interfaces
with Conexant’s ISL3686B Single Band Direct Conversion Transceiver.
Adding Conexant’s ISL3084 5GHz VCO and ISL3980 Power Amp completes
an end-to-end WLAN chip set solution compliant with 802.11b/g standards.
Additionally, the GW3887A directly interfaces with Conexant’s ISL3692 Dual
Band Direct Conversion Transceiver. Adding Conexant’s ISL3092 11GHz
VCO and ISL3992 Dual Band Power Amp completes an end-to-end WLAN
chip set solution compliant with 802.11a/b/g/h/i/j standards. The 802.11
protocol is implemented in firmware supporting custom WLAN solutions.
The GW3887A improvements over the GW3887 include the addition of an
internal 48MHz oscillator, which eliminates several external components
from the radio design.
Software implements the full IEEE 802.11 Wireless LAN MAC protocol. It
supports BSS and IBSS operation under DCF, and operation under the
optional Point Coordination Function (PCF). Active scanning is performed
autonomously once initiated by host command. Host interface command
and status handshakes allow concurrent operations from multi-threaded I/
O drivers.
Orthogonal Frequency Division Multiplexing (OFDM) of 52 sub-carriers
modulated with BPSK, QPSK, 16QAM or 64QAM and a variety of
convolutional coding rates provides 8 selectable data rates at 2.4GHz and
5GHz. Differential phase shift keying modulation schemes, DBPSK and
DQPSK with data scrambling capability along with Complementary Code
Keying provide an additional 4 selectable data rates at 2.4GHz.
Built-in flexibility allows the GW3887A to be configured for a range of
applications. The MAC is based on the ARM 946E processor core that
offers a wide variety of code development support tools.
The GW3887A is housed in a thin plastic BGA package suitable for USB
2.0 Wireless LAN small form factor circuit card applications.
Features
• Firmware implements the full IEEE
802.11a/b/g/h/i/j Wireless LAN MAC
protocols
• Internal WEP Engine allows 64 or 128 bit
Encryption
• AES Hardware Accelerator
• Start-up modes allow the USB vendor and
device ID to be initialized from a small
external serial EEPROM. This allows
firmware to be downloaded from the host.
• On-chip SRAM memory
• A low frequency crystal oscillator can
maintain time, which allows the high
frequency clock source to be powered off
during sleep mode.
• Firmware controlled antenna diversity
• Data Rates: 1, 2, 5.5, 6, 9, 11, 12, 18, 24,
36, 48, & 54Mbps
• Modulation: OFDM with BPSK, QPSK,
16QAM, 64QAM; DBPSK; DQPSK and
CCK
• Convolutional coding and interleaving on
all OFDM rates
• Targeted for OFDM Multipath Delay
Spreads >800ns for 6Mbps, and >100ns
for 54Mbps
• Targeted for CCK Multipath Delay
Spreads >90ns at 11Mbps, >200ns at
5.5Mbps and >360ns at 1 and 2Mbps
• Direct interface with the ISL3692 and
ISL3686 Direct Conversion transceiver
• USB 2.0 Wireless LAN Adapters
A/D
BB
PROCESSOR
MAC
USB
2.0
Interface
D/A
GW3887A
SRAM
Figure 1: Simplified Block Diagram
Preliminary Data Sheet
November 12, 2004
Conexant Systems, Inc.
Proprietary - Use Pursuant to NDA
DO-406971-DS
Issue 2






GW3887AIKZ-TK Datasheet, Funktion
GW3887A Data Sheet
Table 1: GW3887A Signal Descriptions (Sheet 5 of 5)
Pin Name
TX_IFagc
GNDD1
NC
GNDD0
Qoout_P
Qoout_N
Ioout_P
Ioout_N
Iin_P
Qin_N
Iout_N
BGA Ball
Assignment
t14
t15
t16
t2
t3
t4
t5
t6
t7
t8
t9
Pad Type
analog
analog
none
analog
analog
analog
analog
analog
analog
analog
analog
Pin I/O
TYPE
none
none
none
none
none
none
none
none
none
none
none
Description
Iout for Tx AGC DAC
Digital ground for DACs other than offset
No connect, no pad
Offset DACs digital ground
Iout+ for Q offset DAC (QOFFSET+)
Iout- for Q offset DAC (QOFFSET-)
Iout+ for I offset DAC (IOFFSET+)
Iout- for I offset DAC (IOFFSET-)
Input signal + for I Rx ADC (RXI+)
Input signal for Q Rx ADC (RXQ-)
Iout- for I Tx DAC (TXI-)
2 Thermal Information
Thermal resistance information is provided in Table 2.
November 12, 2004
Table 2: Thermal Resistancea
Product
θJA (oC/W)
BGA Package
42
a. θJA is measured with the component mounted on high effective
thermal conductivity test board in free air. Refer to DO-406099-TC
Technical Brief(TB379) - Thermal Characterization of Packaged
Semiconductor Devices for details.
Maximum Storage Temperature Range . . . . . . . -65°C to 150°C
Maximum Junction Temperature . . . . . . . . . . . . 125°C
NOTE:
For recommended soldering conditions refer to DO-405727-TC Technical Brief (TB334) - Guidelines for
Soldering Surface Mount Components to PC Boards.
Conexant Systems, Inc.
DO-406971-DS
6
Proprietary - Use Pursuant to NDA
Issue 2

6 Page









GW3887AIKZ-TK pdf, datenblatt
GW3887A Data Sheet
14 Order Information
November 12, 2004
Table 6: Ordering Information
Part
Number
Package
Package
Drawing #
Temp. Range
(°C)
Pack Method
Minimum
Orderable
Quantities
GW3887AIK
GW3887AIK-TK
GW3887AIKZ-TKa
192 Pin BGA
192 Pin BGA
Lead Free192 Pin BGA
V192.14x14B
-40 to 85
Tray
Tape and Reel
Tape and Reel
90
1000
1000
a. Lead Free products employ special lead free material sets; molding compounds / die attach materials and 100% lead free termination fin-
ishes, which are compatible with both SnPb and lead free soldering operations. Lead Free products are MSL classified at lead free peak
reflow temperatures that meet or exceed the lead free requirements of IPC/JEDEC J Std-020B.
For additional information, contact Conexant Systems, Inc. (together with its subsidiaries, “Conexant”) at 1-888-855-4562 (toll-free within the U.S. and
Canada) or 1-732-345-7500, or visit the Conexant internet site at www.conexant.com.
IMPORTANT NOTICE: Conexant has taken all commercially reasonable effort to ensure that the information contained in this document is accurate,
however we realize that errors do occur. Conexant continually strives to improve the quality of its products and documentation and, as such, may
make changes to this document at any time without notice. If you find errors, or information that may be missing, please contact your Conexant sales
representative. Conexant advises all customers to ensure that they have the latest version of this data sheet and to verify, before placing orders, that
information being relied on is current and complete. Conexant does not, however, assume any responsibility for the use of the information in this data
sheet, nor for any infringements of patents or other rights of third parties which may result from its use. Readers of this document who are designers
remain responsible for their own system designs and for ensuring that their overall system design satisfies their design objectives, taking due account
of the specifications of all equipment and software which may be incorporated into their design. Please be reminded that differences in system
hardware and software design or configuration may affect actual performance.
No licenses to patents, copyrights, trade secrets or other intellectual property of Conexant or any of its subsidiaries are granted by this document.
Conexant assumes no liability whatsoever, and disclaims any express or implied warranty relating to the sale or license of the products described in
this document, including liability or warranties relating to fitness for a particular purpose, merchantability, or infringement. This Conexant proprietary
document is intended only for use as specified in a non-disclosure agreement with the company or one of its subsidiaries.
This document is the property of Conexant. No part of this document may be copied, reproduced, stored in a retrieval system, translated, or
transmitted in any form, or by any means, nor may any part of this document be used as the basis for manufacture or sale of any items or software
without the express written consent of Conexant.
PRISM GT and WorldRadio are trademarks of Conexant. Third party brands, names, and marks are the property of their respective owners.
Copyright © 2003, 2004 GlobespanVirata, Inc., a wholly owned subsidiary of Conexant Systems, Inc.
ALL RIGHTS RESERVED
Conexant Systems, Inc.
DO-406971-DS
12
Proprietary - Use Pursuant to NDA
Issue 2

12 Page





SeitenGesamt 12 Seiten
PDF Download[ GW3887AIKZ-TK Schematic.PDF ]


Link teilen




Besondere Datenblatt

TeilenummerBeschreibungHersteller
GW3887AIKZ-TKWireless LAN Integrated Medium Access ControllerConexant
Conexant

TeilenummerBeschreibungHersteller
CD40175BC

Hex D-Type Flip-Flop / Quad D-Type Flip-Flop.

Fairchild Semiconductor
Fairchild Semiconductor
KTD1146

EPITAXIAL PLANAR NPN TRANSISTOR.

KEC
KEC


www.Datenblatt-PDF.com    |   2020   |  Kontakt  |   Suche