ADNV-6330 Avago Technologies US Inc., ADNV-6330 Datasheet - Page 7

• Manufacturer Part Number: ADNV-6330
• Description: IC LASER MOUSE VSCEL
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNV-6330

• Wavelength: 842nm
• Voltage - Input: 1.9V
• Current Rating: 12mA
• Power (watts): 4.5mW
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Package / Case: -
• Lead Free Status / Rohs Status: Details

Laser Output Power
LASER Output Power
The laser beam output power as measured at the navi-
gation surface plane is specified below. The following
conditions apply:
1. The system is adjusted according to the above proce-
2. The system is operated within the recommended op-
3. The VDD3 value is no greater than 50mV above its value
. No allowance for optical power meter accuracy is as-
Disabling the LASER
LASER_NEN is connected to the base of a PNP transistor
which when ON connects V
operation, LASER_NEN is low. In the case of a fault
condition (ground at XY_LASER or RBIN), LASER_NEN
goes high to turn the transistor off and disconnect V
from the LASER.
Microcontroller
Figure 6. Single Fault Detection and Eye-safety Feature Block Diagram
7
Parameter
Laser output power
dure.
erating temperature range.
at the time of adjustment.
sumed.
RESET
NPD
DD3
Symbol
LOP
voltage sense
fault control
current set
to the LASER. In normal
ADNS-6000
block
DRIVER
LASER
RBIN
Minimum
DD3
Maximum
716
Single Fault Detection
ADNS-6000 is able to detect a short circuit, or fault,
condition at the RBIN and XY_LASER pins, which could
lead to excessive laser power output. A low resistance
path to ground on either of these pins will trigger the
fault detection circuit, which will turn off the laser drive
current source and set the LASER_NEN output high.
When used in combination with external components
as shown in the block diagram below, the system will
prevent excess laser power for a single short to ground
at RBIN or XY_LASER by shutting off the laser. Refer to the
PC board layout notes for recommendations to reduce
the chance of high resistance paths to ground existing
due to PC board contamination.
In addition to the continuous fault detection described
above, an additional test is executed automatically
whenever the LP_CFG0 register is written to. This test
will check for a short to ground on the XY_LASER pin, a
short to VDD3 on the XY_LASER pin, and will test the fault
detection circuit on the XY_LASER pin.
VDD3
GND
Units
uW
LASER_NEN
XY_LASER
Notes
Per conditions above
VDD3
LASER