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PDF ADNS-6530 Data sheet ( Hoja de datos )
| Número de pieza | ADNS-6530 | |
| Descripción | Integrated COB LaserStream sensor | |
| Fabricantes | AVAGO | |
| Logotipo |  |
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ADNS-6530
Integrated COB LaserStream sensor
Data Sheet
Description
The Avago Technologies ADNS-6530 integrated Chip-
con-board (COB) LaserStream sensor along with the
ADNS-6150 (SFF) lens form a complete and compact laser
mouse tracking system. It is the laser-illuminated small
form factor (SFF) navigation system. Targeted at cordless
applications. The chip integrates the sensor and VCSEL
into a single package, providing a small form factor. This
new opto-mechanical architecture allows for more com-
pact and cost-effective mouse designs. Powered by latest
Avago Technologies LaserStreamTM engine, the mouse
can track on more than traditional LED-based optical
navigation, especially on glossy and reflective ones. In
addition, the high-performance, low power architecture
is capable of sensing high-speed mouse motion while
prolonging battery life-two performance areas essential
in demanding cordless applications.
There is no moving part in the complete assembly for
ADNS-6530 laser mouse system, thus it is high reliability
and less maintenance for the end user. In addition, preci-
sion optical alignment is not required, facilitating high
volume assembly.
Theory of Operation
The ADNS-6530 integrated COB LaserStream sensor com-
prises of sensor and VCSEL in a single package.
The advanced class of VCSEL was engineered by Avago
Technologies to provide a laser diode with a single longi-
tudinal and a single transverse mode. In contrast to most
oxide-based single-mode VCSEL, this class of Avago Tech-
nologies VCSEL remains within single mode operation
over a wide range of output power. It has significantly
lower power consumption than a LED. It is an excellent
choice for optical navigation applications.
The sensor is based on LaserStream™ technology, which
measures changes in position by optically acquiring
sequential surface images (frames) and mathematically
determining the direction and magnitude of movement.
It contains an Image Acquisition System (IAS), a Digital
Signal Processor (DSP), and a four wire serial port. The
IAS acquires microscopic surface images via the lens and
illumination system. These images are processed by the
DSP to determine the direction and distance of motion.
The DSP calculates the ∆x and ∆y relative displacement
values. An external microcontroller reads the ∆x and ∆y
information from the sensor serial port. The microcon-
troller then translates the data into PS2, USB, or RF signals
before sending them to the host PC or game console.
Features
• Small form factor, integrated chip-on-board pack-
age
• Low power architecture
• New LaserStream technology
• Self-adjusting power-saving modes for longest bat-
tery life
• High speed motion detection up to 20 ips and 8g
• Enhanced SmartSpeed self-adjusting frame rate for
optimum performance
• Motion detect pin output
• Internal oscillator – no clock input needed
• Selectable 400 and 800 cpi resolution
• Wide operating voltage: 2.7V-3.6V nominal
• Four wire serial port
• Minimal number of passive components
• Laser fault detect circuitry on-chip for Eye Safety
Compliance
• Advanced Technology VCSEL chip
• Single Mode Lasing operation
• 832-865 nm wavelength
Applications
• Laser Mice
• Optical trackballs
• Integrated input devices
• Battery-powered input devices
1 page  
Figure 4. Exploded view drawing
Shown with ADNS-6530 integrated COB LaserStream sensor and ADNS-6150 SFF lens, the components self-align as
they are mounted onto defined features on the base plate.
The ADNS-6530 integrated COB LaserStream sensor is designed for mounting on a through-hole PCB, looking down.
There are an aperture stop and guide holes on the package that align to the ADNS-6150 SFF lens.
The VCSEL is used for illumination, provides a laser diode with a single longitudinal and a single transverse mode. It
is particularly suited as lower power consumption and highly coherent replacement of LEDs. It also provides wider
operation range while still remaining within single-mode, reliable operating conditions.
The ADNS-6150 SFF lens is designed for use with ADNS-6530 integrated COB LaserStream sensor. The VCSEL contained
in the package and the lens provides the directed illumination and optical imaging necessary for proper operation of
the sensor. ADNS-6150 SFF lens is precision molded optical components and should be handled with care to avoid
scratching of the optical surfaces.
Avago Technologies provides a STEP or IGES file drawing describing the base plate molding features for lens and PCB
alignment.
5 Page 
Eye Safety
The ADNS-6530 integrated COB LaserStream sensor and
the associated components in the schematic of Figure 5
are intended to comply with Class 1 Eye Safety Require-
ments of IEC 60825-1. Avago Technologies suggests that
manufacturers perform testing to verify eye safety on
each mouse. It is also recommended to review possible
single fault mechanisms beyond those described below
in the section “Single Fault Detection”. Under normal
conditions, the sensor generates the drive current for
the VCSEL.
In order to stay below the Class 1 power requirements,
LASER_CTRL0 (register 0x1a), LASER_CTRL1 (register
0x1f ), LSRPWR_CFG0 (register 0x1c) and LSRPWR_CFG1
(register 0x1d) must be programmed to appropriate val-
ues. The ADNS-6530 integrated COB LaserStream sensor
which comprised of the sensor and VCSEL; is designed to
maintain the output beam power within Class 1 require-
ments over components manufacturing tolerances and
the recommended temperature range when adjusted
per the procedure below and implemented as shown
in the recommended application circuit of Figure 7. For
more information, please refer to Eye Safety Application
Note AN5297.
VDD
AVDD
GND
AGND
ADNS -6530
Laser Mouse Sensor
Image Array
DSP
Oscillator
LASER Drive
NCS
SCLK
MOSI
MISO
MOTION
LASER_NEN
-VC SEL
VCSEL
+VCSEL
Figure 8. Block diagram of ADNS-6530 integrated COB LaserStream sensor
LASER Drive Mode
The laser is driven in pulsed mode during normal op-
eration. A calibration mode is provided which drives the
laser in continuous (CW) operation.
LASER Power Adjustment Procedure
1. The ambient temperature should be 25°C ± 5°C.
2. Set VDD to its permanent value.
3. Set the Range bit (bit 7 of register 0x1a) to 0.
4. Set the Range_C complement bit (bit 7 of register
0x1f ) to 1.
5. Enable the Calibration mode by writing to bits [3,2,1]
of register 0x1A so the laser will be driven with 100%
duty cycle.
6. Write the Calibration mode complement bits to reg-
ister 0x1f.
7. Set the laser current to the minimum value by writing
0x00 to register 0x1c, and the complementary value
0xFF to register 0x1d.
8. Program registers 0x1c and 0x1d with increasing
values to achieve an output power as close to 506uW
as possible without exceeding it. If this power is ob-
tained, the calibration is complete, skip to step 12.
9. If it was not possible to achieve the power target, set
the laser current to the minimum value by writing
0x00 to register 0x1c, and the complementary value
0xff to register 0x1d.
10. Set the Range and Range_C bits in registers 0x1a and
0x1f, respectively, to choose to the higher laser cur-
rent range.
11. Program registers 0x1c and 0x1d with increasing
values to achieve an output power as close to 506uW
as possible without exceeding it.
12. Save the value of registers 0x1a, 0x1c, 0x1d, and 0x1f
in non-volatile memory in the mouse. These regis-
ters must be restored to these values every time the
ADNS-6530 is reset.
13. Reset the mouse, reload the register values from
non-volatile memory, enable Calibration mode, and
measure the laser power to verify that the calibration
is correct.
Good engineering practices such as regular power meter
calibration, random quality assurance retest of calibrated
mice, etc. should be used to guarantee performance, reli-
ability and safety for the product design.
Parameter
Laser output power
Symbol
LOP
Minimum
Maximum
716
Units
uW
Notes
Class 1 limit with recommended VCSEL and lens.
11
11 Page | ||
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| PDF Descargar | [ Datasheet ADNS-6530.PDF ] | |
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