SX1231-31SKB915 Semtech, SX1231-31SKB915 Datasheet - Page 12

• Manufacturer Part Number: SX1231-31SKB915
• Description: TVS
• Manufacturer: Semtech

Specifications of SX1231-31SKB915

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

2.4. Chip Specification
The tables below give the electrical specifications of the transceiver under the following conditions: Supply voltage VBAT1=
VBAT2=VDD=3.3 V, temperature = 25 °C, FXOSC = 32 MHz, F
without pre-filtering, FDA = 5 kHz, Bit Rate = 4.8 kb/s and terminated in a matched 50 Ohm impedance, unless otherwise
specified.
Note
2.4.1. Power Consumption
Table 4
2.4.2. Frequency Synthesis
Table 5
Rev 3 - April 2010
ADVANCED COMMUNICATIONS & SENSING
Symbol
FR
FXOSC
TS_OSC
TS_FS
TS_HOP
FSTEP
Symbol
IDDSL
IDDIDLE
IDDST
IDDFS
IDDR
IDDT
Unless otherwise specified, the performances in the other frequency bands are similar or better.
Power Consumption Specification
Frequency Synthesizer Specification
Description
Synthesizer Frequency Range
Crystal oscillator frequency
Crystal oscillator wake-up time
Frequency synthesizer wake-up
time to PllLock signal
Frequency synthesizer hop time
at most 10 kHz away from the
target
Frequency synthesizer step
Description
Supply current in Sleep mode
Supply current in Idle mode
Supply current in Standby mode
Supply current in Synthesizer
mode
Supply current in Receive mode
Supply current in Transmit mode
with appropriate matching, sta-
ble across VDD range
Conditions
Programmable
See section 7.1
From Standby mode
FSTEP = FXOSC/2
Conditions
RC oscillator enabled
Crystal oscillator enabled
RFOP = +17 dBm, on PA_BOOST
RFOP = +13 dBm, on RFIO pin
RFOP = +10 dBm, on RFIO pin
RFOP =
RFOP =
Page 12
-1 dBm, on RFIO pin
0 dBm, on RFIO pin
RF
19
= 915 MHz, Pout = +13dBm, 2-level FSK modulation
200 kHz step
12 MHz step
20 MHz step
25 MHz step
1 MHz step
5 MHz step
7 MHz step
Min
290
424
862
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
61.0
Typ
250
32
80
20
20
50
50
80
80
80
1.25
Typ
-
-
-
0.1
1.2
16
95
45
33
20
16
9
1020
Max
Max
DATASHEET
340
510
500
150
1.5
www.semtech.com
SX1231
1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
uA
uA
mA
mA
mA
mA
mA
mA
mA
mA
Unit
MHz
MHz
MHz
MHz
us
us
us
us
us
us
us
us
us
Hz
Unit