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SPIRIT1 数据表(PDF) 26 Page - STMicroelectronics

部件名 SPIRIT1
功能描述  Low data rate, low power sub-1GHZ transceiver
PDF  94 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

SPIRIT1 数据表(HTML) 26 Page - STMicroelectronics

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Characteristics
SPIRIT1
26/94
Doc ID 022758 Rev 3
6.2.6
Sensors
Characteristics measured over recommended operating conditions unless otherwise
specified. All typical values are referred to TA = 25 °C, VBAT = 3.0 V.
SETTIME
PLL RX/TX settling time
Settling time from RX to TX
and from TX to RX
8.5
µs
CALTIME
PLL calibration time
54
µs
Table 14.
N-Fractional
ΣΔ frequency synthesizer characteristics (continued)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
Table 15.
Analog temperature sensor characteristics
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
TERR
Error in temperature
Across all the temperature range
-
±2.5
-
°C
TSLOPE Temperature coefficient
2.5
mV/
°C
VTS-OUT Output voltage level
0.92
V
TICC
Current consumption
Buffered output (low output
impedance, about 400 Ohm)
600
µA
Not buffered output (high output
impedance, about 100 k
Ω)
10
µA
Table 16.
Battery indicator and low battery detector(1)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
VBLT
Battery level thresholds
2.1
2.7
V
VBOT
Brownout threshold
Measured in slow battery
variation (static) conditions
(inaccurate)
1.535
V
Measured in slow battery
variation (static) conditions
(accurate)
1.684
V
BOThyst Brownout threshold hysteresis
70
mV
1.
For battery powered equipment, the TX does not transmit at a wrong frequency under low battery voltage conditions. It
either remains on channel or stops transmitting. The latter can of course be realized by using a lock detect and/or by
switching off the PA under control of the battery monitor. For testing reasons this control is enabled/disabled by SPI.



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