83885 SENSONOR TECHNOLOGIES AS, 83885 Datasheet - Page 4

• Manufacturer Part Number: 83885
• Description: IC, SENSOR, GYRO, SAR100, 28LCC
• Manufacturer: SENSONOR TECHNOLOGIES AS

Specifications of 83885

• No. Of Axes: 1
• Sensor Case Style: LCC
• No. Of Pins: 28
• Supply Voltage Range: 4.45V To 5.5V
• Operating Temperature Range: -40°C To +90°C
• Ic Generic Number: SAR100 - 100
• Interface: SPI
• Interface Type: SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

7.2
TS1440 rev.4
Name
MOSI
MISO
LOAD
SCLK
Characteristics
High ('1') level
Low ('0') level
Input rise time
Input fall time
Output fall time
Output rise time
Output enable delay
Data rate
Capacitive load, MISO
Note 1:
Note 2:
Note 3:
Name
Read Commands
RARH
RARLX
RTMP
RSR
SafeGuard Commands
SGDIS1
SGDIS2
SGDIS3
SGEN
Error Handling Commands
PRCEN
Note 1:
Note 2:
Note 3:
SPI Commands
The three SafeGuard disable commands MUST be issued in the -1,-2,-3 sequence, and with the addresses shown. Any in-
between commands or incorrect addresses will reset the SafeGuard disable sequence. A single SGEN command re-
enables the SafeGuard.
The RARH command latches high and low bytes such that a sequence of RARH first followed by RARLX guarantees bits
from the same Angular rate sample.
In case of a recoverable error condition, issuing this command re-enables continued angular rate readout. Note that for this
command to function the SafeGuard must be disabled. See also chapter 8 for details.
Signal Description
Master Out, Slave In.
After a negative edge on LOAD, 8-bit command is shifted in on MOSI, clocked by SCLK (MSB first).
Master In, Slave Out.
Output from previous command is stored in a Data Register. At a negative edge on LOAD, the
content of the Data Register is loaded to the Data Output Register. While command byte is shifted
into the Command Register, Data Output is shifted out on MISO (MSB first).
Chip Select/Transfer Start Strobe.
As long as LOAD=1, the MISO output is in a high-Z mode (tri-stated). A negative edge on LOAD
initiates an SPI transfer. The new command is executed after a positive edge on LOAD. If a positive
edge occurs on LOAD before at least 8 bits are shifted in on MOSI, the command will be ignored.
Serial Data Clock.
MOSI is read on the positive edge of SCLK, and MISO is shifted out on the negative edge of SCLK.
With load of 100pF connected to V
Characteristic is based on proven library I/O cell performance.
By design.
Command
10000000
10001110
10110000
10110100
01001110
01100011
00010010
01010101
10101010
11010111
01010000
10101000
Address
-
-
-
-
-
-
Symbol
VH
VL
trI
tfI
tPHL
tPLH
tPHZ
tPLZ
tPZH
tPZL
fSCLK
CMISO
DATASHEET
SS
.
Status byte
dddd dddd
0101 dddd
dddd dddd
1000 0000
1000 0000
1000 0000
0000 0000
1000 0000
Output
Note
2
2
2
2
1,2
1,2
1,2
3
2
Description
Read angular rate, high byte
Read angular rate, low byte extended
Read internal temperature
Read status register
SafeGuard disable command 1
SafeGuard disable command 2
SafeGuard disable command 3
SafeGuard enable command
Re-enable signal processing after error
condition
4/13
0.7VDD
Min
Nom
Specifications
SAR100 Single-Axis Gyro
ButterflyGyro
1/(20fSCLK)
1/(20fSCLK)
0.3VDD
Max
0.97
100
8.5
8.6
1.2
8.4
8.2
8.5
Note
2
1
3
June 2010
Mbits/s
Units
pF
ns
ns
ns
V
V
s
s
™