SX1239IMLTRT Semtech, SX1239IMLTRT Datasheet - Page 13

• 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

2.4.3. Receiver
All receiver tests are performed with RxBw = 10 kHz (Single Side Bandwidth) as programmed in RegRxBw, receiving a
PN15 sequence with a BER of 0.1% (Bit Synchronizer is enabled), unless otherwise specified. The LNA impedance is set
to 200 Ohms, by setting bit LnaZin in RegLna to 1. Blocking tests are performed with an unmodulated interferer. The
wanted signal power for the Blocking Immunity, ACR, IIP2, IIP3 and AMR tests is set 3 dB above the nominal sensitivity
level.
Table 6
Rev 3 - Jan 2011
ADVANCED COMMUNICATIONS & SENSING
Symbol
RFS_F
RFS_O
CCR
ACR
BI
AMR
IIP2
IIP3
BW_SSB
IMR_OOK
TS_RE
TS_RE_AGC
TS_RE_AGC
&AFC
Receiver Specification
Description
FSK sensitivity, highest LNA gain
OOK sensitivity, highest LNA gain
Co-Channel Rejection
Adjacent Channel Rejection
Blocking Immunity
Blocking Immunity
Wanted signal at sensitivity
+16dB
AM Rejection , AM modulated
interferer with 100% modulation
depth, fm = 1 kHz, square
2nd order Input Intercept Point
Unwanted tones are 20 MHz
above the LO
3rd order Input Intercept point
Unwanted tones are 1MHz and
1.995 MHz above the LO
Single Side channel filter BW
Image rejection in OOK mode
Receiver wake-up time, from PLL
locked state to RxReady
Receiver wake-up time, from PLL
locked state, AGC enabled
Receiver wake-up time, from PLL
lock state, AGC and AFC enabled
Conditions
FDA = 5 kHz, BR = 1.2 kb/s
FDA = 5 kHz, BR = 4.8 kb/s
FDA = 40 kHz, BR = 38.4 kb/s
FDA = 5 kHz, BR = 1.2 kb/s*
BR = 4.8 kb/s
Programmable
Wanted signal level = -106 dBm
RxBw
RxBw
RxBw
RxBw
RxBw
RxBw
Page 13
= 10 kHz, BR = 4.8 kb/s
= 10 kHz, BR = 4.8 kb/s
= 200 kHz, BR = 100 kb/s
= 200 kHz, BR = 100 kb/s
= 200 kHz, BR = 100 kb/s
= 10 kHz, BR = 4.8 kb/s
Offset = +/- 10 MHz
Offset = +/- 10 MHz
Offset = +/- 10 MHz
Offset = +/- 25 kHz
Offset = +/- 50 kHz
Offset = +/- 1 MHz
Offset = +/- 2 MHz
Offset = +/- 1 MHz
Offset = +/- 2 MHz
Offset = +/- 1 MHz
Offset = +/- 2 MHz
Highest LNA gain
Highest LNA gain
Lowest LNA gain
Lowest LNA gain
Min
-13
-23
2.6
37
27
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-105
-120
-118
-114
-112
Typ
+75
+35
+20
163
265
-10
-45
-40
-32
-36
-33
-25
-45
-40
-32
-18
1.7
3.0
4.8
42
42
30
96
-
DATASHEET
www.semtech.com
SX1239
Max
-109
500
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
dBm
dBm
dBm
dBm
dBm
dB
dB
dB
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
kHz
dB
ms
us
ms
us
ms
us
Unit