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products:wizfi250:wizfi250ds:5.technicalspecification

Technical specification

Absolute maximum rating

Supply Power Max +3.6 Volt
Storage Temperature - 40° to 85° Celsius
Voltage ripple +/- 2% Max Values not exceeding Operating voltage

Recommendable operation condition

Temperature, humidity

The WizFi250 can withstand the operational requirements as listed in the table below.

Operating Temperature -20° to 85° Celsius
Humidity range Max 95%, Non condensing, relative humidity

* The maximum operating ambient temperature can be up to 85°. Exposure to absolute-maximum-rated conditions may cause performance degradation and affect device reliability. For the best performance -20° to 75° is recommended.

Voltage

Power supply for the WizFi250 module will be provided by the host via power pins.

Symbol Parameter Min Typ. Max Unit
VBAT_WL power supply for WizFi250 3.0 3.3 3.6 V
VDDIO_3V3_WL host Interface power supply 3.0 3.3 3.6 V
VBAT_MICRO backup operating voltage 3.0 3.3 3.6 V
VDD_3V3 power supply for MCU 3.0 3.3 3.6 V

Current consumption

The WizFi250 on operation output current consumption :

MCU mode WiFi mode
(802.11n)
Typ.
(RMS)
Max.
Normal mode Not Associated 14 mA 18 mA
Normal mode Associated 67 mA 69 mA
Normal mode Associated
(IEEE Power Save mode)
32 mA 65 mA
Stop mode Associated
(IEEE Power Save mode)
14 mA 17 mA
Stop mode Not Associated 3 mA 23 mA

The WizFi250 on TX mode output current consumption :
(Typical spec is defined @3.3V 25℃ ; MAX. spec is defined @3.0V 70℃)

Current Consumption Typ. Max.
Tx output power @16.5 dBm on 11b 1M 385 mA 430 mA
Tx output power @ 16.5 dBm on 11b 11M 370 mA 410 mA
Tx output power @ 15 dBm on 11g 6M 345 mA 380 mA
Tx output power @ 13 dBm on 11g 54M 290 mA 320 mA
Tx output power @ 14.5 dBm on 11n MCS0 315 mA 350 mA
Tx output power @ 12 dBm on 11n MCS7 265 mA 295 mA

The WizFi250 on RX mode current consumption :
(Typical spec is defined @3.3V 25℃; MAX. spec is defined @3.0V 70℃)

Current Consumption Typ. Max.
Rx @ 11b 1M 120 mA 150 mA
Rx @ 11b 11M 120 mA 150 mA
Rx @ 11g 6M 120 mA 150 mA
Rx @ 11g 54M 120 mA 150 mA
Rx @ 11n MCS0 120 mA 150 mA
Rx @ 11n MCS7 120 mA 150 mA

Wireless specifications

WizFi250 complies with following features and standards;

Features Description
WLAN Standards IEEE 802 11 b/g/n
Antenna Connecter Port One printed antenna, one U.FL connector for external antenna
Frequency Band 2.400 GHz ~ 2.484 GHz
Number of Sub Channels CH1 to CH14
Modulation DSSS, CCK, OFDM, BPSK, QPSK,16QAM, 64QAM
Supported data rates 11b 1, 2, 5.5, 11 (Mbps)
11g 6, 9, 12, 18, 24, 36, 48, 54 (Mbps)
11n HT20 MCS0(6.5Mbps) to HT20 MCS7(65Mbps)

Specifications of WiFi’s output power, evm, sensitivity

The WizFi250 WiFi output power is listed in the table below:

Characteristics Typ. Criteria Unit
RF Average Output Power, 802.11b CCK Mode 1M 16.5 +/- 1.5 dBm
11M 16.5 +/- 1.5 dBm
RF Average Output Power, 802.11g OFDM Mode 6M 15 +/- 1.5 dBm
54M 13 +/- 1.5 dBm
RF Average Output Power, 802.11n OFDM Mode MCS0 14.5 +/- 1.5 dBm
MCS7 12 +/- 1.5 dBm

WiFi TX EVM following the IEEE spec as listed in the table below:

Characteristics IEEE Spec Unit
RF Average Output EVM (11b) @1 Mbps -10 dB
@11 Mbps -10 dB
RF Average Output EVM (11g) @6 Mbps -5 dB
@54 Mbps -25 dB
RF Average Output EVM (11n) @ MCS0 -5 dB
@ MCS7 -28 dB

The WizFi250 Wi-Fi sensitivity as listed in the table below:

Receiver Characteristics Typ. Max. Unit
PER <8%, Rx Sensitivity @ 1 Mbps -96 -89 dBm
PER <8%, Rx Sensitivity @ 11 Mbps -88 -84 dBm
PER <10%, Rx Sensitivity @ 6 Mbps -90 -83 dBm
PER <10%, Rx Sensitivity @ 54 Mbps -74 -70 dBm
PER <10%, Rx Sensitivity @ MCS0 -89 -83 dBm
PER <10%, Rx Sensitivity @ MCS7 -71 -67 dBm
products/wizfi250/wizfi250ds/5.technicalspecification.txt · Last modified: 2015/03/16 10:33 (external edit)