SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 12

• Manufacturer Part Number: SX1239IMLTRT
• Description: IC, RF RECEIVER, 1.02GHz, QFN-24
• Manufacturer: Semtech

Specifications of SX1239IMLTRT

• Applications: Wireless Sensor Networks, Automated Meter Reading, Home And Building Automation
• Receiving Current: 16mA
• Data Rate: 300Kbps
• Modulation Type: FSK, OOK
• Sensitivity Dbm: -120dBm
• Rohs Compliant: Yes
• Rf Ic Case Style: QFN
• No. Of Pins: 24
• Sensitivity (dbm): -120dBm
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / Rohs Status: Supplier Unconfirmed

2.4. Chip Specification
The tables below give the electrical specifications of the receiver under the following conditions: Supply voltage VBAT1=
VBAT2=VDD=3.3 V, temperature = 25 °C, FXOSC = 32 MHz, F
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 - Jan 2011
ADVANCED COMMUNICATIONS & SENSING
Symbol
FR
FXOSC
TS_OSC
TS_FS
TS_HOP
FSTEP
FRC
BRF
BRO
Symbol
IDDSL
IDDIDLE
IDDST
IDDFS
IDDR
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
RC Oscillator frequency
Bit rate, FSK
Bit rate, OOK
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
After calibration
Conditions
Programmable
See section 7.1
From Standby mode
FSTEP = FXOSC/2
Programmable
Programmable
Conditions
RC oscillator enabled
Crystal oscillator enabled
Page 12
RF
= 915 MHz, 2-level FSK modulation without pre-filtering,
19
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
1.2
1.2
Min
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
61.0
62.5
Typ
250
32
80
20
20
50
50
80
80
80
1.25
Typ
-
-
-
-
-
0.1
1.2
16
9
32.768
1020
Max
Max
DATASHEET
340
510
500
150
300
1.5
www.semtech.com
SX1239
1
-
-
-
-
-
-
-
-
-
-
-
-
-
mA
mA
uA
uA
mA
Unit
MHz
MHz
MHz
MHz
us
us
us
us
us
us
us
us
us
Hz
kHz
kbps
kbps
Unit