ADNS-9500 Avago Technologies US Inc., ADNS-9500 Datasheet - Page 8

• Manufacturer Part Number: ADNS-9500
• Description: Ultimate Gaming Laser Sensor
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-9500

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 7. Block diagram of ADNS-9500
Regulatory Requirements
x Passes FCC B and worldwide analogous emission limits
x Passes IEC-1000-4-3 radiated susceptibility level when
x Passes
x Passes IEC-61000-4-2 Electrostatic Discharge Immunity
x Passes IEC/EN 60825-1 Eye Safety Class 1 when
Design Considerations for Improving ESD Performance
For improved electrostatic discharge performance, typical
creepage and clearance distance are shown in the table
below. Assumption: base plate construction as per the
Avago supplied 3D model file when use with ADNS-
6190-002 lens. The lens flange can be sealed (i.e. glued)
to the base plate. Note that the lens material is polycar-
bonate and therefore, cyanoacrylate based adhesives or
other adhesives that may damage the lens should NOT be
used.
8
VDD5/VDD3
VDD3/REFB
Typical Distance (mm)
Creepage
Clearance
PWR_OPT
when assembled into a mouse with shielded cable and
following Avago recommendations.
assembled into a mouse with shielded cable and
following Avago recommendations.
assembled into a mouse with shielded cable and
following Avago recommendations.
Test (ESD) and provides sufficient ESD creepage/
clearance distance to withstand discharge up to 15KV
when assembled into a mouse according to usage
instructions above.
operating with the laser output power pre-calibrated
by Avago Technologies without external hardware and
software control of laser current.
–VCSEL
VDDIO
DGND
REFA
GND
EN61000-4-4/IEC801-4
ADNS-9500
Oscalator
Image
VCSEL
LASER Drive
ADNS-6190-002
17.3
1.8
EFT
tests
NCS
SCLK
MOSI
MISO
MOTION
XYLASER
LASER_NEN
+VCSEL
when
Eye Safety
The ADNS-9500 sensor and the associated components
in the schematic of Figure 6 are intended to comply with
Class 1 Eye Safety Requirements of IEC 60825-1. Avago
Technologies calibrates the sensor’s laser output power
(LOP) to Class 1 eye safety level and store the registers
values that control the LOP prior shipping out, thus no
LOP calibration is required in complete mouse system at
manufacturer site.
ADNS-9500 sensor is designed to maintain the laser
output power using ADNS-6190-002 lens within Class 1
Eye Safety requirements over components manufactur-
ing tolerances under the recommended operating con-
ditions and application circuits of Figure 6 as specified in
this document. Under normal operating conditions, the
sensor generates the drive current for the VCSEL. Increas-
ing the LOP by other means on hardware and software
can result in a violation of the Class 1 eye safety limit of
716PW. For more information, please refer to Eye Safety
Application Note.
LASER Drive Mode
The laser is driven in pulsed mode during normal operation.
A calibration mode is provided which drives the laser in
continuous (CW) operation for testing purpose.
The default setting of laser is in Forced_Disable mode,
which the laser is turned OFF. The laser have to be turned
ON during power up sequence by setting Forced_ Disabled
bit (Bit-0) of LASER_CTRL0 register to 0.
Disabling the LASER
LASER_NEN is connected to the gate of an external P-
channel MOSFET transistor which, when ON connects
REFB to the laser. In normal operation, LASER_NEN is low.
In the case of a fault condition, LASER_NEN goes high to
turn the transistor off and disconnect REFB from the laser.