5.RF Performance Table 10 RF Performance Description Min Typ. Max Unit Input frequency 2400 2483.5 MHz Input impedance 50 ohm Input impedance -10 dB
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17Output power of PA for 72.2Mbps 15.5 16.5 17.5 dBm Output power of PA for 11b mode 19.5 20.5 21.5 dBm Sensitivity CCK, 1 Mbps -98 dBm CCK, 11 Mbps -91 dBm 6 Mbps (1/2 BPSK) -93 dBm 54 Mbps (3/4 64-QAM) -75 dBm HT20, MCS7 (65 Mbps, 72.2 Mbps) -72 dBm Adjacent Channel Rejection OFDM, 6 Mbps 37 dB OFDM, 54 Mbps 21 dB HT20, MCS0 37 dB HT20, MCS7 20 dB 6.Power Consumption
18Table 11 Power Consumption Parameters Min Typical Max Unit Tx802.11b, CCK 11Mbps, P OUT=+17dBm 170 mA Tx 802.11g, OFDM 54Mbps, P OUT =+15dBm 140 mA Tx 802.11n, MCS7, P OUT =+13dBm 120 mA Rx 802.11b, 1024 bytes packet length , -80dBm 50 mA Rx 802.11g, 1024 bytes packet length, -70dBm 56 mA Rx 802.11n, 1024 bytes packet length, -65dBm 56 mA Modem-Sleep① 15 mA Light-Sleep② 0.9 mA Deep-Sleep③ 10 uA Power Off 0.5 uA ❶Modem-Sleep requires the CPU to be working, as in PWM or I2S applications. According to 802.11 standards (like U-APSD), it saves power to shut down the Wi-Fi Modem circuit while maintaining a Wi-Fi connection with no data transmission. E.g. in DTIM3, to maintain a sleep 300mswake 3ms cycle to receive AP’s Beacon packages, the current is about 15mA. ❷During Light-Sleep, the CPU may be suspended in applications like Wi-Fi switch. Without data transmission, the Wi-Fi Modem circuit can be turned off and CPU suspended to save power according to the 802.11 standard (U-APSD). E.g. in DTIM3, to maintain a sleep 300ms-wake 3ms cycle to receive AP’s Beacon packages, the current is about 0.9mA. ❸Deep-Sleep does not require Wi-Fi connection to be maintained. For application with long time lags between data transmission, e.g. a temperature sensor that checks the temperature every 100s ,sleep 300s and waking up to connect to the AP (taking about 0.3~1s), the overall average current is less than 1mA.
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197.Reflow ProfileTable 12 Instructions TS max to TL (Ramp-up Rate) 3 ℃/second max Preheat Temperature Min.(TS Min.) Temperature Typical.(TSTyp.) Temperature Min.(TS Max.) Time(TS) 150℃175℃200℃60~180 seconds Ramp-up rate (TL to TP) 3 ℃/second max Time Maintained Above: --Temperature(TL)/Time(TL) 217 ℃/60~150 seconds Peak Temperature(TP) 260 ℃max. for 10 seconds Target Peak Temperature (TP Target) 260℃+0/-5℃Time within 5 ℃of actual peak(tP) 20~40 seconds TS max to TL (Ramp-down Rate) 6 ℃/second max Tune 25 ℃to Peak Temperature (t) 8 minutes max
208.SchematicsFigure 4 Schematics of ESP-12FWiFi Module
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