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PDF ( 数据手册 , 数据表 ) SX1243

零件编号 SX1243
描述 Low Cost Integrated Transmitter IC
制造商 Semtech
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SX1243 数据手册, 描述, 功能
SX1243
WIRELESS & SENSING
SX1243 - Low Cost Low Current Integrated Transmitter
310 to 928MHz Frequency Agile
DATASHEET
GENERAL DESCRIPTION
The SX1243 is an ultra-low-cost, fully integrated FSK or
OOK transmitter suitable for operation between 310 and
450 MHz, 860 and 870 MHz, as well as 902 and 928 MHz.
For applications where economy is paramount, the SX1243
may be used without the requirement for configuration via
an MCU. However, in conjunction with a microcontroller the
communication link parameters may be re-configured.
Including, output power, modulation format and operating
channel.
The SX1243 offers integrated radio performance with cost
efficiency and is suited for operation in North America FCC
Part 15.231, FCC Part 15.247 FHSS and Digital Modulation
Techniques, 15.249, and Europe EN 300 220.
ORDERING INFORMATION
Part Number
SX1243IULTRT
Temperature Range
-40 °C to +85 °C
Package
DFN-UT8
MOQ / Multiple
3000 pieces
Pb-Free, Halogen Free, RoHS/WEEE compliant product.
APPLICATIONS
Š Garage Door Openers
Š Low-Cost Consumer Electronic Applications
Š Remote Keyless Entry (RKE)
Š Remote Control / Security Systems
KEY PRODUCT FEATURES
Š +10 dBm or 0 dBm Configurable output power
Š Bit rates up to 100 kbps
Š OOK and FSK modulation.
Š 1.8 to 3.7 V supply range.
Š Low BOM Fully Integrated Tx
Š Fractional-N PLL with 1.5 kHz typical step
Š Frequency agility for FHSS modulation
Š FCCwww.DataSheet.co.kr CFR Part 15.247 Digital Modulation Techniques
NRESET
1
DATA
2
GND
3
XTAL
4
PA
CP M/N
PFD
Sigma
/Delta
RFOUT
8
7 TX_READY
CTRL
6
VDD
5
1.8 to 3.7 V
SX1243, Rev 3, May 2012
©2012 Semtech Corporation
Page 1
www.semtech.com
Datasheet pdf - http://www.DataSheet4U.net/







SX1243 pdf, 数据表
WIRELESS & SENSING
SX1243
Integrated Transmitter IC
DATASHEET
3. Digital Specification
The following table gives the operating specifications for the digital inputs and outputs of the SX1243.
Table 5 Digital Signals Specification
Symbol Description
VIH
VIL
VOH
VOL
fCTRL
tch
tcl
trise
tfall
tsetup
Digital input level high
Digital input level low
Digital output level high
Digital output level low
CTRL Clock Frequency
CTRL Clock High time
CTRL Clock Low time
CTRL Clock rise time
CTRL Clock Fall time
DATA Setup time
thold DATA hold time
t0, t2
t1
Time at “1” on DATA during
Recovery command
Time at “0” on DATA during
Recovery command
Conditions
Imax = 1 mA
Imax = -1 mA
From Data transition to CTRL rising
edge
www.DataSheet.co.kr
From CTRL rising edge to DATA
transition
See Figure 9 and Figure 10
Min Typ Max Unit
0.8 -
- VBAT
- - 0.2 VBAT
0.9 -
- VBAT
- - 0.1 VBAT
- - 10 MHz
45 -
- ns
45 -
- ns
- - 5 ns
- - 5 ns
45 -
- ns
45 -
- ns
- - 5 us
See Figure 10
5 - - us
SX1243, Rev 3, May 2012
©2012 Semtech Corporation
Page 8
www.semtech.com
Datasheet pdf - http://www.DataSheet4U.net/







SX1243 equivalent, schematic
WIRELESS & SENSING
SX1243
Integrated Transmitter IC
DATASHEET
5.4. Test Parameters
Ten Test bits DT(9:0) exist in the SX1243. They are only use for the industrial test of the device, and therefore they are pad
protected. It means that their value cannot be modified without applying a specific logical level to some of the SX1243 pads
during a write access.
5.5. Status Parameters
DS(12:5) are read-only bits, organized as follows:
Name
Number
Description
Default
Advanced
Mode
Power
&Go 1
Power
&Go 2
RES
DS(28:13) Reserved
Chip
Version
DS(12:5) Chip identification number
RES
DS(4:2) Reserved
TX_READY DS(1)
TX_READY, see section [6.5.1]
0 Æ Transmitter not Ready
1 Æ Transmitter is Ready
RES
DS(0)
Reserved
-
“0001 0001” --> V1A
-
-
-
Table 12 Status Read-Only Parameters
www.DataSheet.co.kr
SX1243, Rev 3, May 2012
©2012 Semtech Corporation
Page 16
www.semtech.com
Datasheet pdf - http://www.DataSheet4U.net/










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