• 无线模块
  • 无线模块
  • 无线模块
  • 无线模块

Wireless Module

K21

Specification table

 

item description
product name k21
major chipset rtl8273bu
host interface usb2.0
standard

wifi:    eee 802.11b, ieee 802.11g,

ieee 802.11n

b t:      v2.1+edr/bt v3.0/bt v3.0+hs/bt v4.0

frequency range 2.4ghz~2.4835ghz
    modulation type

802.11b:    cck, dqpsk, dbpsk

802.11g:    64 qam, 16 qam, qpsk, bpsk

802.11n:    64 qam, 16 qam, qpsk, bpsk

b t:   8dpsk, π/4 dqpsk, gfsk

working mode infrastructure,   ad-hoc
      data transfer rate

wifi:802.11b: 11, 5.5, 2, 1 mbps

802.11g: 54, 48, 36, 24, 18, 12, 9, 6 mbps

802.11n: mcs 0 to 7 for ht20mhz ;

mcs 0 to 7 for ht40mhz

b t:    1 mbps for basic rate

2,3mbps for enhanced data rate

    spread spectrum

ieee 802.11b: dsss (direct sequence spread spectrum)

ieee 802.11g/n:ofdm (orthogonal frequency division multiplexing)

bt:fhss(frequency-hopping spread spectrum)

      sensitivity @per

wi fi: 1m: -92dbm@8%per

6m: -89dbm@10%per

11m:-86dbm@8%per

54m:-73dbm@10%per

135m:-67dbm@10%per

b t:    -89dbm@1mbps, -85dbm@2mbps, -83dbm@3mbps

rf power

16dbm@11b,    14dbm@11g , 13dbm@11n

bt: max +10dbm

antenna type connect to the external antenna through the half hole
  the transmit distance

wifi: indoor 100m, outdoor 300m, according the local environment

bt: 10m max.

product dimension(l*w*h) 12.2*13*1.6mm (lxwxh) ;tolerance: +-0.2mm
power supply 3.3v +/-0.3v
power consumption

standby mode 96ma@3.3v ,

tx mode 255ma@3.3v

clock source 40mhz
working temperature 0°c to +70°c
storage temperature -55°c to +125°c