over operating free-air temperature range (unless otherwise noted)(1)(2)
|
MIN |
TYP |
MAX |
UNIT |
Supply voltage |
VBAT,
VIO (shorted to
VBAT) |
Pins: 10, 37, 39, 44,
54 |
Direct battery
connection(3) |
2.1(4) |
3.3 |
3.6 |
V |
Ambient
thermal slew |
–20 |
|
20 |
°C/minute |
(1) Operating temperature is limited by crystal frequency
variation.
(2) When operating at an ambient temperature of over 75°C, the
transmit duty cycle must remain below 50% to avoid the auto-protect feature of
the power amplifier. If the auto-protect feature triggers, the device takes a
maximum of 60 seconds to restart the transmission.
(3) To ensure WLAN performance, ripple on the supply must be less
than ±300 mV.
(4) The minimum voltage specified includes
the ripple on the supply voltage and all other transient dips. The brownout
condition is also
2.1 V, and care must be taken
when operating at the minimum specified voltage.