LMH6525 Datasheet, PDF (5/15 Pages) National Semiconductor (TI) – Four-hannel Laser Diode Driver with Dual Output

Connection Diagrams
28-Pin LLP (LMH6525)
28-Pin LLP (LMH6526)
Top View
20110106
Top View
20110107
Pin Description
Pin #
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
Description
Laser driver output channel A
LVDS Oscillator Enable pin
LVDS Oscillator Enable pin B (only LMH6525)
Read Channel Enable pin
Chip Enable pin
Supply Voltage A
Ground Connection A
Read Channel current setting
Channel 2 current setting
Channel 3 current setting
Channel 4 current setting
Oscillator Frequency setting Channel A
Oscillator Frequency setting Channel B
Oscillator Amplitude setting Channel A
Oscillator Amplitude setting Channel B
Channel select B (LMH6525)
Channel select A (LMH6526)
LVDS input Channel 2B
LVDS input Channel 2
LVDS input Channel 3B
LVDS input Channel 3
LVDS input Channel 4B
LVDS input Channel 4
NC
Supply Voltage
Supply Voltage
Supply Voltage
Remarks
Internal Oscillator activated if logical input is high
Internal Oscillator activated if logical input is low
Read Channel active if pin is high
Chip Enabled if pin is high
1 mA input current result in 150 mA output current
1 mA input current result in 300 mA output current
1 mA input current result in 150 mA output current
1 mA input current result in 150 mA output current
Set by external resistor to ground
Set by external resistor to ground
Set by external resistor to ground
Set by external resistor to ground
Channel selected if pin is high
Channel 2 active if logical input is low
Channel 2 active if logical input is high
Channel 3 active if logical input is low
Channel 3 active if logical input is high
Channel 4 active if logical input is low
Channel 4 active if logical input is high
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