ADNS-6000 Avago Technologies US Inc., ADNS-6000 Datasheet - Page 39

• Manufacturer Part Number: ADNS-6000
• Description: Laser Mouse Sensor
• Manufacturer: Avago Technologies US Inc.

Specifications of ADNS-6000

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

LP_CFG0
Access: Read/Write
Data Type: 8-bit unsigned integer
USAGE: This register is used to set the laser current and bin matching parameter. It is to be used together with register
0x2D where register 0x2D must contain the complement of register 0x2C in order for the laser current to be pro-
grammed. Writing to this register causes a fault test to be performed on the XY_LASER pin. The test checks for stuck
low and stuck high conditions. During the test, LASER_NEN will be driven high and XY_LASER will pulse high for 12us
and pulse low for 12us (times are typical). Both pins will return to normal operation if no fault is detected.
LP_CFG1
Access: Read/Write
Data Type: 8-bit unsigned integer
USAGE: The value in this register must be a complement of register 0x2C for laser current to be as programmed,
otherwise the laser current is set to 33.85%. Registers 0x2C and 0x2D may be written in any order after power ON
reset or SROM download.
39
Field Name
Match
LP
Field
Field
6
Bit
Bit
LP
- LP
0000
0000
0000
0000
0000
1111
1111
1111
6
- LP
:
0
3
Match
LPC
7
7
7
Description
Match the sensor to the VCSEL characteristics. Set per the bin table specification for the
VCSEL bin in use.
Controls the 7 bit DAC for adjusting laser current.
One step is equivalent to (1/192)*100% = 0.5208% drop of relative laser current.
Refer to the table below for example of relative laser current settings.
LP
0
0
0
0
1
1
1
1
:
2
LPC
LP
6
6
6
6
LP
LPC
Address: 0x2C
Default Value: 0x7F
Address: 0x2D
Default Value: 0x80
0
0
1
1
0
0
1
1
:
LP
1
5
5
5
5
LPC
LP
4
4
LP
4
0
1
0
1
0
1
0
1
4
:
0
LPC
LP
3
3
3
3
LPC
Relative Laser Current
2
LP
2
2
2
99.48%
98.96%
98.43%
97.92%
34.90%
34.38%
33.85%
100%
:
LPC
1
LP
1
1
1
LPC
LP
0
0
0
0