CXA2542AQ
The ISET pin is used to connect external resistance. This external resistance sets the current which
determines the focus search, track jump, and sled kick levels.
• Focus search current
VBG
1
2
I1 =
×
R
(VBG: approximately 1.27V)
I1
I2
I2 = 2I1
FS1
• Track jump current (TM3 and TM4 current)
1
VBG
I =
×
2
R
• Sled kick current (TM5 and TM6 current, when D1 = D0 = 0 during 1X$ commands)
VBG
I =
R
Use external resistance of between 30kΩ and 240kΩ.
Using external resistance outside this range may cause oscillation.
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