User's Manual

ESP-32S User Manual
Shenzhen Ai-Thinker Technology Co., Ltd http://www.ai-thinker.com
4.5.2 Transmit
Table 12: Transmit Characteristics – BLE
Parameter
Conditions
Min
Typ
Max
Unit
RF transmit power
-
-
+7.5
+10
dBm
RF power control range
-
-
25
-
dB
Adjacent channel transmit power
F=F0+1 MHz
-
-14.6
-
dBm
F=F0-1 MHz
-
-12.7
-
dBm
F=F0 + 2 MHz
-
-44.3
-
dBm
F=F0-2 MHz
-
-38.7
-
dBm
F=F0 + 3 MHz
-
-49.2
-
dBm
F=F0-3 MHz
-
-44.7
-
dBm
F=F0+>3 MHz
-
-50
-
dBm
F=F0->3 MHz
-
-50
-
dBm
△ f1avg
-
-
-
265
kHz
A f2
-
247
-
-
kHz
△ f2avg/△ f1avg
-
-
-0.92
-
-
ICFT
-
-
-10
-
kHz
Drift rate
-
-
0.7
-
kHz/50 µs
Drift
-
-
2
-
kHz
4.6 Reflow Profile
Table 13: Reflow Profile
Item
Value
Ts max to TL (Ramp-up Rate)
3°C/second max
Preheat
Temperature Min. (Ts Min.)
Temperature Typ. (Ts Typ.)
Temperature Min. (Ts Max.)
Time (Ts)
150°C
175°C
200°C
60 ~180 seconds
Ramp-up rate (TL to Tp)
3°C/second max
Time maintained above: -Temperature (T
L
)/Time (T
L
)
217°C/60 ~150 seconds
Peak temperature (Tp)
260°C max, for 10 seconds
Target peak temperature (Tp Target)
260°C +0/-5°C
Time within 5°C of actual peak (tp)
20~40 seconds
Ts max to TL (Ramp-down Rate)
6°C/second max
Tune25°C to Peak Temperature (t)
8 minutes max