LMH6525 Datasheet, PDF (6/15 Pages) National Semiconductor (TI) – Four-hannel Laser Diode Driver with Dual Output

Pin Description (Continued)
Pin #
27.
28.
Description
Laser driver output channel B
Ground Connection B
Remarks
Truth Tables
IOUT Control
ENABLE
ENR
EN2
EN3
EN4
0
X
X
X
X
1
0
0
0
0
1
1
0
0
0
1
1
1
0
0
1
1
0
1
0
1
1
0
0
1
Oscillator Control
ENABLE
0
1
1
ENOSC
X
0
1
ENR
EN2
X
X
X
X
X
X
Note: Note: EN2, EN3, EN4 AND ENOSC are LVDS SIGNALS USING THE LMH6525.
EN2, EN3 and EN4 are LVDS signals using the LMH6526.
Waveforms
EN3
X
X
X
EN 4
X
X
X
IOUT
OFF
OFF
A_R * I_INR
A_R * I_INR + A₂ * I_IN2
A_R * I_INR + A₃ * I_IN3
A_R * I_INR + A₄ * I_IN4
OSCILLATOR
OFF
OFF
ON
Functional Timing Diagram
20110110
www.national.com
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