User's Manual

BT860
Datasheet
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www.lairdtech.com/bluetooth
21
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Table 18: BSC Interface Timing Specifications
Reference Characteristics Min. Max. Unit
1 Clock frequency -
100
400
800
1000
kHz
2 START condition setup time 650 - ns
3 START condition hold time 280 - ns
4 Clock low time 650 - ns
5 Clock high time 280 - ns
6 Data input hold time 0 - ns
7 Data input setup time 100 - ns
8 STOP condition setup time 280 - ns
9 Output valid from clock - 400 ns
10 Bus free time 650 - ns
9 A NTENNA P ERFORMANCE
Table 19, Figure 13, and Figure 14 show the antenna gain and performance.
Table 19: Antenna gain
Unit in dBi @ 2440MHz XY-Plane XZ-Plane YZ-Plane
Efficiency
AT3216-B2R7HAA
Peak Avg. Peak Avg. Peak Avg.
1.7 -2.9 2.3 -2.3 0.2 -5.4 55%
Figure 13: Antenna Return Loss