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ML7344J Datasheet(PDF) 98 Page - List of Unclassifed Manufacturers

No. de pieza ML7344J
Descripción Electrónicos  Sub-GHz band short range wireless transceiver IC
PDF  151 Pages
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Fabricante Electrónico  ETC2 [List of Unclassifed Manufacturers]
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ML7344J Datasheet(HTML) 98 Page - List of Unclassifed Manufacturers

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●Energy detection value (ED value) adjustment
ED value is calculated by RSSI signal (analog signal) from RF part, By performing the following adjustment, it
is possible to correct the variation in LSIs.
[ED value]
ED value is calculated as following formula,
RSSI value = 1.35 * (input level[dBm] – variations[dBm] – other losses[dBm]) + offset
ED value (CCA threshold) = (RSSI value + RSSI_ADJ) * RSSI_MAG_ADJ
Value
Item
High Sensitivity Mode
High Linearity Mode
offset
164.5
156
Variation (individual, temp.)[dBm]
10
7
Other loss[dBm]
Antenna, matching circuits loss
RSSI_ADJ
The setting of [RSSI_VAL:B1 0x14]
RSSI_MAG_ADJ
The setting of [RSSI_ADJ: B0 0x66]
[ED value asjustment]
At first, inputting the low-level signal to ANT terminal. Adjusting the RSSI_ADJ value so that ED_VALUE
[ED_RSLT:B0 0x3A(7-0)] indicates the target value of the low-level signal.. Next inputting the high-level signal
and adjusting the RSSI_MAG_ADJ value so that ED_VALUE indicates the target value of the high-level signal.
Repeat several times in accordance with the required accuracy.
RSSI_ADJ
(B0 0x66)
RSSI_MAG_ADJ
(B1 0x13)
RF input level
high
low-



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