ADNB-7052-EV Avago Technologies US Inc., ADNB-7052-EV Datasheet - Page 19

• Manufacturer Part Number: ADNB-7052-EV
• Description: OPTICAL MOUSE EVALUATION KIT
• Manufacturer: Avago Technologies US Inc.
• Series: LaserStream™r
• Type: Optical Mouser

Specifications of ADNB-7052-EV

• Contents: Mouse Sensor, VCSEL, Lens, Laser Assembly Clip and Documentation
• Description/function: Laser Mouse Bundle
• Interface Type: SPI
• Product: Display Modules
• Touch Panel: No Touch Panel
• For Use With/related Products: ADNS-7050
• Lead Free Status / Rohs Status: Details
• Other names: Q2656643; Q2755626

Notes on Power-up
The ADNS-7050 does not perform an internal power up
self-reset; the POWER_UP_RESET register must be written
every time power is applied. The appropriate sequence is
as follows:
1. Apply power
2. Drive NCS high, then low to reset the SPI port
3. Write 0x5a to register 0x3a
4. Wait for t
5. Write 0xFE to register 0x28
6. Read from registers 0x02, 0x03, and 0x04 (or read
During power-up there will be a period of time after the
power supply is high but before any clocks are available.
The table below shows the state of the various pins dur-
ing power-up and reset.
State of Signal Pins after VDD is Valid
Pin
NCS
MISO
SCLK
MOSI
XY_LASER
MOTION
LASER_NEN
Pin
NCS
MISO
SCLK
MOSI
XYLASER
LASER_NEN
MOTION
1
these same 3 bytes from burst motion register 0x42)
one time regardless of the motion pin state.
WAKEUP
On Power-Up
Functional
Undefined
Ignored
Ignored
Undefined
Undefined
Undefined
Status when Shutdown Mode
Undefined*
Ignore if NCS = 1*
Ignore if NCS = 1*
High(Off)
High(Off)
Undefined *
Functional*
2
1
2
3
4
NCS High before Reset
Hi
Undefined
Ignored
Ignored
Undefined
Undefined
Undefined
*1 NCS pin must be held to 1 (high) if SPI bus is shared with other
*2 Depend on last state.
*3 SCLK is ignore if NCS is 1 (high). It is functional if NCS is 0 (low).
*4 MOSI is ignore if NCS is 1 (high). If NCS is 0 (low), any command
Note:
There are long wakeup times from shutdown and forced Rest. These
features should not be used for power management during normal
mouse motion.
Notes on Shutdown and Forced Rest
The ADNS-7050 can be set in Rest mode through the
Configuration_Bits register (0x11). This is to allow for
further power savings in applications where the sensor
does not need to operate all the time.
The ADNS-7050 can be set in Shutdown mode by writing
0xe7 to register 0x3b. The SPI port should not be accessed
when Shutdown mode is asserted, except the power-up
command (writing 0x5a to register 0x3a). (Other ICs on
the same SPI bus can be accessed, as long as the sensor’s
NCS pin is not asserted.) The table below shows the state
of various pins during shutdown. To deassert Shutdown
mode:
1. Write 0x5a to register 0x3a.
2. Wait for t
3. Write 0xFE to register 0x28.
4. Any register settings must then be reloaded.
devices. It is recommended to hold to 1 (high) during Power Down
unless powering up the Sensor. It must be held to 0 (low) if the
sensor is to be re-powered up from shutdown (writing 0x5a to
register 0x3a).
present on the MOSI pin will be ignored except power-up command
(writing 0x5a to register 0x3a).
WAKEUP
NCS Low before Reset
Low
Functional
Functional
Functional
Undefined
Undefined
Undefined
.
After Reset
Functional
Depends on
NCS
Depends on
NCS
Depends on
NCS
Functional
Functional
Functional