User Manual
PRODUCT NAME : RF Module
MODEL NAME : TWFM-K305D
H/W version : v100
The information contained herein is the exclusive property of LG Innotek
and shall not be distributed, reproduced or disclosed in whole or no in part
without prior written permission of LG Innotek.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
1 / 8
Table of Contents
No Description Page
1 Features 2
2 Block Diagram 2
3 Absolute Maximum Ratings 3
4 Operating Test Conditions 4
5 Electrical Characteristics 4
6 Pin Description 5
7 Outline Drawing 6
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
1. Features
TWFM-K305D is the module for IEEE 802.11b/g/n wireless LAN.
TWFM-K305D is based on MTK MT7601U solution.
IEEE 802.11 b/g/n single band WLAN infrastructure
Size : 45mm x 20mm x 10 mm
Auto-calibration
1T2R mode with 150Mbps PHY rate
USB 2.0 interface
Supports drivers for Windows 7, Vista, XP, 2000 and Linux
Security : WFA, WPA, WPA2, WPS2.0, WAPI
Application : DTV, DVR, HD DVD Player, Blue-ray Disk Player, STB
PAGE :
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© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
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3. Absolute Maximum Ratings
Parameter Min Max Unit
Storage Temperature -20 +80
Storage Humidity (@ 40℃)
Caution : The specifications above the Table define levels at which permanent damage
to the device can occur. Function operation is not guaranteed under these conditions.
Operating at absolute maximum conditions for extend periods can adversely affect the
long-term reliability of the device.
• Other conditions
- 90 %
℃
1) Do not use or store modules in the corrosive atmosphere, especially where chloride
gas, sulfide gas, acid, alkali, salt or the like are contained.
Also, avoid exposure to moisture.
2) Store the modules where the temperature
and relative humidity do not exceed 5 to 40℃ and 20 to 60%.
3) Assemble the modules within 6 months.
Check the soldering ability in case of 6 months over.
4. Operating Test Conditions
Parameter Min Typ Max Unit
Operating Temperature
Operating Humidity (40℃)
Supply Voltage 3.15 3.3 3.45 Vdc
1)
0 - +65
℃
- - 85 %
1)
It can be applied in condition of TX/RX switching at 1 second intervals
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
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5. Electrical Characteristics
5-1. RF Characteristics for IEEE802.11b (11Mbps mode unless otherwise specified)
Items Contents
Specification IEEE802.11b
Mode DSSS/CCK
Channel frequency 2400 ~ 2483 MHz
Data rate 1,2,5.5,11Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level 13 16 19 dBm
Spectrum Mask
1st side lobes ( to fc ±11MHz)
2nd side lobes ( to fc ±22MHz)
- - -30 dBr
- - -50 dBr
Modulation Accuracy (EVM) - - 35 %
Power On/Off ramp - - 2.0 Usec
Freq. Tolerance -25 - 25 ppm
Chip Clock Freq. Tolerance -25 - 25 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens. (FER ≤ 8%) - -76 dBm
Maximum Input Level (FER ≤ 8%) -10 - - dBm
* Normal Condition : 25℃, VDD=3.3V.
* RF characteristics is board limit. It can differ according to standards
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
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5-2. RF Characteristics for IEEE802.11g (54Mbps mode unless otherwise specified)
Items Contents
Specification IEEE802.11g
Mode OFDM
Channel frequency 2400 ~ 2483 MHz
Data rate 6,9,12,18,24,36,48,54Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level 11 14 17 dBm
Spectrum Mask
at fc ±11MHz
at fc ±20MHz
at fc ≥ ± 30MHz
- - -20 dBr
- - -28 dBr
- - -40 dBr
Constellation Error (EVM) - - -25 dB
Freq. Tolerance -20 - 20 ppm
Chip Clock Freq. Tolerance -20 - 20 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens. (PER ≤ 10%) - - -65 dBm
Maximum Input Level (PER ≤ 10%) -20 - - dBm
* Normal Condition : 25℃, VDD=3.3V.
* RF characteristics is board limit. It can differ according to standards
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
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5-3. RF Characteristics for IEEE802.11gn (MCS7 mode unless otherwise specified)
Items Contents
Specification IEEE802.11n – 2.4GHz
Mode OFDM
Channel frequency 2400 ~ 2483 MHz
Data rate 6.5,13,19.5,26,39,52,58.5,65Mbps
TX Characteristics Min. Typ. Max. Unit
Power Level (HT20 : MCS7) 10 13 16 dBm
Power Level (HT40 : MCS7) 10 13 16 dBm
Spectrum Mask (HT20)
at fc ±11MHz
at fc ±20MHz
at fc ±30MHz
- - -20 dBr
- - -28 dBr
- - -40 dBr
Constellation Error (EVM) - - -28 dB
Freq. Tolerance -20 - 20 ppm
Chip Clock Freq. Tolerance -20 - 20 ppm
RX Characteristics Min. Typ. Max. Unit
Minimum Input Level Sens.
(HT20,PER ≤ 10%)
Minimum Input Level Sens.
(HT40,PER ≤ 10%)
- - -64 dBm
- - -61 dBm
Maximum Input Level (PER ≤ 10%) -20 - - dBm
* Normal Condition : 25℃, VDD=3.3V.
* RF characteristics is board limit. It can differ according to standards
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
6. Pin Description
Connector Pin No. Pin Name I/O Pin Description
1 3_3VD P VDD 3.3V
2 GND P Ground
CON2
3 UDM I/O USB Communication signal(USB_DN)
4 UDP I/O USB Communication signal(USB_DP)
1 N/C - Not connected
2 GND P Ground
CON3
3 RST_N - Reset
4 WL_WAKE_HOST - Wake-up host
7 / 8
< TOP View >
Pin #4
Pin #1
CON2
< Bottom View >
CON3
Note. Recommend a Module install sequence for prevent USB device failure
- Connect the GND and then supply 3.3V power
- Connect to data signal (USB_DP, USB_DN)
Pin #4
Pin #1
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
3D View
K.S Lee
'18. 08. 13
H.S Kim
S.D Chol
'18. 08. 13
'18. 08. 13
User Manual
REV. NO : v1.00
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6. Outline Drawing
MODEL NAME : TWFM-K305D
PAGE :
8 / 8
© 2018 LGIT. All rights reserved.
REG. DATE : 2018.10.25
User Manual
REV. NO : v1.00
REV. DATE : 2018.10.25
MODEL NAME : TWFM-K305D
PAGE :
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FCC Information
This device complies with part 15 of the FCC Results. Operation is subject to the following two conditions :
(1) This Device may not cause harmful interface, and
(2) This device must accept any interference received, including interference that
may cause undesired operation.
Note: This equipment has been tested and found to comply with the limits for CLASS B digital device, pursuant
to Part 15 of FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful interference to radio or television
reception, which can be determined by turning the equipment off and on, the user is encouraged to try correct
the interference by one or more of the following measures:
1.1. Reorient or relocate the receiving antenna.
1.2. Increase the separation between the equipment and receiver.
1.3. Connect the equipment into an outlet on a circuit different from that to which receiver is connected.
1.4. Consult the dealer or experienced radio/TV technician for help.
WARNING
Changes or modifications not expressly approved by the manufacturer could void the user’s authority to
operate the equipment.
“CAUTION : Exposure to Radio Frequency Radiation.
Antenna shall be mounted in such a manner to minimize the potential for human contact during normal
operation. The antenna should not be contacted during operation to avoid the possibility of exceeding the FCC
radio frequency exposure limit.
IC Information
This device complies with Industry Canada license-exempt RSS standard(s). Operation in subject to The
following two conditions: (1) this device may not cause interference, and (2) this device must accept any
interference, including interference that may cause undesired operation of the device.
Cet appareil est conforme avec Industrie Canada RSS standard exempts de licence(s), Son utilisation est
soumise à Les deux conditions suivantes: (1) cet appareil ne peut pas provoquer d’interférences et (2) cet
appareil doit accepter Toute interférence, y compris les interférences qui peuvent causer un mauvais
fonctionnement du dispositif.
Information for OEM Integrator
This device is intended only for OEM integrators under the following conditions:
1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and
2) The transmitter module may not be co-located with any other transmitter or antenna.
End product labelling
The label for end product must include
“Contains FCC ID: YZP-TWFMK305D, Contains IC: 7414C-TWFMK305D”.
“ CAUTION: Exposure to Radio Frequency Radiation.
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This
equipment should be installed and operated with minimum distance of 20cm between the radiator and your
body. This transmitter module is authorized only for use in device where the antenna may be installed such that
20 cm may be maintained between the antenna and users.”
© 2018 LGIT. All rights reserved.
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