SX1223 데이터 시트보기 (PDF) - Semtech Corporation
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SX1223 Datasheet PDF : 25 Pages
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SX1223
3 ELECTRICAL CHARACTERISTICS
3.1 ABSOLUTE MAXIMUM OPERATING RANGES
Stresses above the values listed below may cause permanent device failure. Exposure to absolute maximum
ratings for extended periods may affect device reliability.
Symbol
VDDmax
Tmax
Description
Supply voltage
Storage temperature
Min.
Max.
Unit
-0.4
3.9
V
-55
125
°C
The device is ESD sensitive and should be handled with precaution.
3.2 SPECIFICATIONS
3.2.1 Operating Range
Symbol
VDD
T
CLop
Description
Supply voltage (*)
Temperature
Load capacitance on digital ports
Min.
Max.
Unit
2.0
3.6
V
-40
85
°C
-
25
pF
(*) Divided in two ranges:
- (sv1) high range, 2.2 V – 3.6 V, using on-chip regulators,
- (sv2) low range, 2.0 V – 2.5 V, without using the regulators.
3.2.2 Electrical Specifications
The table below gives the electrical specifications of the transmitter under the following conditions:
Supply Voltage = 3.3 V, temperature = 25 °C, 2-leve l FSK, fc = 915 MHz, Output power = 10 dBm, Bit rate = 38.4
kb/s, ∆f = 100 kHz, XTAL = 16 MHz, modulation by pulling the VCO in open loop (mw2), and conditions as defined
in section 6, unless otherwise specified.
Symbol
IDDSL
IDDST
IDDFS
IDDT
FR
FDA
FDA_L
∆FDA
BR
BR_3
SPICLK
Description
Conditions
Min Typ Max
Supply current in sleep
mode
-
0.3
1
Supply current in standby
mode
Crystal oscillator running,
CLKOUT off
-
0.2 0.3
Supply current in FS mode Frequency synthesizer
running
-
5
6
Supply current during
transmission
10 dBm - 25.8
-
0dBm -
14
-
Frequency range
425
-
475
850
-
950
Frequency deviation
For FR from 850 to 950 MHz 5
-
255
Frequency deviation
For FR from 425 to 475 MHz 5
-
200
Variation of frequency
deviation
- 15
-
+ 15
Bit rate
Modulation modes mw1 mw2 1.2
- 153.6
Bit rate for mw3 mode
Modulation mode mw3
1.2
-
19.2
SPI clock frequency (SCK) SCK duty cycle 50% +/-10%
1
Unit
µA
mA
mA
mA
mA
MHz
MHz
kHz
kHz
%
kbit/s
kbit/s
MHz
© Semtech 2007
www.semtech.com
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