ADBM-A350-200 Avago Technologies US Inc., ADBM-A350-200 Datasheet - Page 7

• Manufacturer Part Number: ADBM-A350-200
• Description: Vigor Colossus OFN Module
• Manufacturer: Avago Technologies US Inc.

Specifications of ADBM-A350-200

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

DC Electrical Specifi cations
Electrical Characteristics over recommended operating conditions. Typical values at 25° C, VDD=VDDIO=1.8V at default
LED setting 13 mA.
Notes on Power-up Sequence
Below is the power up sequence for ADBM-A350:
1. Apply power.
2. Set NCS pin high, Shutdown pin low. Set IO_Select pin
3. If in TWI mode, set A0 and A1 according to the Table
4. Read Product ID to ensure sensor is power up properly.
5. Perform soft reset by writing 0x5A to address 0x3a.
6. Write 0xC9 to address 0x61.
Note on register settings
Please refer to the OFN A350 fi rmware design guide for
tuning of Speed Switching, Assert/De-assert, Finger
Presence Detect and XY Quantization register settings.
Notes on Shutdown and Reset
The ADBM-A350 can be set in Shutdown mode by
asserting or setting SHTDWN pin high. During the
shutdown state, supply voltages VDD must be maintained
above the minimum level. If these conditions are not met,
then the sensor must be restarted by powering down
then powering up again for proper operation. Any register
settings must then be reloaded.
During the shutdown state, supply voltage VDD must
be maintained above the minimum level. For proper
operation, SHTDWN pulse width must be at least t
7
Parameter
V
Digital peak supply current
LED+ peak supply current
Input Low Voltage
Input High Voltage
Input hysteresis
Input leakage current
Output Low Voltage
Output High Voltage
Input Capacitance
DDIO
to low (for TWI) or high (for SPI).
TWI slave address in datasheet. This step is skipped if
SPI mode is used.
DC Supply Current
I
I
I
Symbol
I V
V
V
V
V
V
C
PEAK
PEAK
leak
IL
IH
HYS
OL
OH
in
DDIO
VDD
LED+
Minimum
-0.05
V
100
V
DDIO
DDIO
-0.2
* 0.7 V
P-SHTDWN
Typical
0
±1
V
DDIO
DDIO
.
-0.1
Shorter pulse widths may cause the chip to enter an
undefi ned state. In addition, the SPI or TWI port of the
sensor should not be accessed when SHTDWN is asserted.
Other devices 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.
After deasserting SHTDWN, wait t
the SPI port. Reinitializing the sensor from shutdown state
will retain all register data that were written to the sensor
prior to shutdown.
The reset of the sensor via SOFT_RESET register or through
the NRST pin would reset all registers to the default value.
Any register settings must then be reloaded.
Note: There are long wakeup times from shutdown. These features
should not be used for power management during normal sensor
motion.
Pin
IO_NCS_A1
IO_MISO_SDA
IO_CLK
IO_MOSI_A0
XY_LED
EVENT_INT
NRST
IO_Select
GPIO
Maximum
20
10
35
V
V
±10
0.2
10
DDIO
DDIO
*0.35 V
+0.05 V
Units
A
mA
mA
mV
A
V
V
pF
Notes
At LED register setting of 27 mA
IO_MOSI_A0, IO_CLK, IO_MISO_SDA,
IO_NCS_A1, NRST, SHTDWN,
IO_SELECT
IO_MOSI_A0, IO_CLK, IO_MISO_SDA,
IO_NCS_A1, NRST, SHTDWN,
IO_SELECT
IO_MOSI_A0, IO_CLK, IO_MISO_SDA,
IO_NCS_A1, NRST, SHTDWN,
IO_SELECT
I
I
MOSI, NCS, SCLK, SHTDWN
out
out
Low current
SHTDWN active
Undefi ned
Undefi ned
Undefi ned
Undefi ned
High
SPI: High, TWI: Low
Undefi ned
= 1.2 mA
= 600 A
Functional
WAKEUP
before accessing