XR18W753IL48-F Exar Corporation, XR18W753IL48-F Datasheet - Page 15
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XR18W753IL48-F
Manufacturer Part Number
XR18W753IL48-F
Description
IC RF TXRX 868-956MHZ 48QFN
Manufacturer
Exar Corporation
Type
RF Receiversr
Series
-r
Datasheet
1.XR18W753IL48-F.pdf
(27 pages)
Specifications of XR18W753IL48-F
Package / Case
48-VFQFN Exposed Pad
Frequency
868MHz ~ 954MHz
Data Rate - Maximum
250kbps
Modulation Or Protocol
DSSS
Applications
ISM
Power - Output
0dBm
Sensitivity
-94dBm
Voltage - Supply
2.2 V ~ 3.6 V
Current - Receiving
19mA
Current - Transmitting
22mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
-40°C ~ 85°C
Operating Frequency
100 KHz, 400 KHz
Operating Supply Voltage
2.2 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Noise Figure
12 dB
Supply Current
0.5 mA, 1.7 mA, 19 mA, 22 mA
Data Rate
250Kbps
Rf Ic Case Style
QFN
No. Of Pins
48
Supply Voltage Range
2.97V To 3.63V
Operating Temperature Range
-40°C To +85°C
Memory Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
XR18W753IL48-F
Manufacturer:
EXAR/艾科嘉
Quantity:
20 000
REV. 1.0.0
3.2 DETAILED REGISTERS DESCRIPTIONS
A
0x13
0x14
0x15
0x16-0x1F
DDRESS
REGISTER NAME
ED_AV_TIME
MODEM_ED
MODEM_LQI
Reserved
DESCRIPTION
Measurement time for ED Measurement
b[3:0] = 0000 --> 8 symbols
b[3:0] = 0001 --> 5.0 mSec
b[3:0] = 0010 --> 5.5 mSec
b[3:0] = 0011 --> 6.0 mSec
b[3:0] = 0100 --> 6.5 mSec
b[3:0] = 0101 --> 7.0 mSec
b[3:0] = 0110 --> 7.5 mSec
b[3:0] = 0111 --> 8.0 mSec
b[3:0] = 1000 --> 8.5 mSec
b[3:0] = 1001 --> 9.0 mSec
b[3:0] = 1010 --> 9.5 mSec
b[3:0] = 1011 --> 10.0 mSec
b[3:0] = 11xx --> 10.0 mSec
b[7:4] not used
Via this register, the ED measurement time can be defined. In case
value 0 is chosen, the measurement time is compliant to the defini-
tion of the IEEE802.15.4b standard. In the 902-928 MHz band, the
measurement time equals 128us. For the 868 MHz band, this sym-
bol time equals 320us.
LQI Value, updated as a result of successful ED measurement.
The result of the ED measurement is available in this register.
The value is normalized and on average will be independent from
the ED measurement time (ED_AV_TIME). Note that the value of
MODEM_ED also depends on the content of ED_THRESH (0x2E).
LQI Value, updated after complete frame reception.
During reception of a data packet, the correlation values of the
symbol mapping is accumulated and divided by the number of sym-
bols in the packets. The number is a normalized Link Quality Indi-
cation.
SINGLE CHIP 868MHZ TO 956MHZ RF TRANSCEIVER
15
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XR18W753
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