ADXL180WCPZ-RL Analog Devices Inc, ADXL180WCPZ-RL Datasheet - Page 35

• Manufacturer Part Number: ADXL180WCPZ-RL
• Description: IC ACCELEROMETER CONFIG 16-LFCSP
• Manufacturer: Analog Devices Inc
• Series: iMEMS®r

Specifications of ADXL180WCPZ-RL

• Axis: X or Y
• Acceleration Range: ±50g, 100g, 150g, 200g, 250g, 350g, 500g
• Voltage - Supply: 5 V ~ 14.5 V
• Output Type: Analog
• Bandwidth: 100Hz ~ 800Hz Selectable
• Mounting Type: Surface Mount
• Package / Case: 16-LFQFN, CSP Exposed Pad
• Package Type: LFCSP EP
• Operating Supply Voltage (min): 5V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Product Depth (mm): 5mm
• Product Height (mm): 1.43mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Interface: -
• Lead Free Status / Rohs Status: Compliant
• Other names: ADXL180WCPZ-RLCT

Table 32. Phase 2 Mode 2 User Bit Mapping
User Bit
U11
U10
U09
U08
U07
U06
U05
U04
U03
U02
U01
U00
Mode 3
Device Data
In Phase 2 Mode 3, the 10-bit data codes, −512 (0x200) to −481
(0x21F), are used to transmit the device data. The data coding
is shown in Table 34 and in Figure 27. One 4-bit nybble of the
device data (encoded as one of 16 nybble codes) is transmitted
in each 10-bit message. The number of the data nybble is identi-
fied by the preceding nybble number (NN) code as detailed in
Table 33. This allows a total of (16 × 4) = 64 unique bits of device
data to be transmitted during Phase 2. Each message is repeated
Table 33. Phase 2 Mode 3 Device Data Mapping
Device Data Nybble No.
1
2
3
4
5
6
7
8
9
10
1
Device Data Bit Name
SYEN
RG2
RG1
RG0
UD7
UD6
UD5
UD4
UD3
UD2
UD1
UD0
NN1 DATA1
PHASE 1
32 MESSAGES
Protocol ID
Number of nybbles sent
Manufacturer
Sensor type
Sensor range
BDE and RS
User data (UD Bits[7:4])
User data (UD Bits[3:0])
Serial number (Bits[31:28])
Serial number (Bits[27:24])
NN1 DATA1
2
Figure 27. Mode 3 Device Data Transmission
NN2 DATA2
32 MESSAGES
Definition
Rev. A | Page 35 of 60
PHASE 2
NN2 DATA2
32 times for each nybble number. The specific meaning of each
data nybble is defined in Table 33. The total number of messages
transmitted during Phase 2 in Mode 3 is (32 × 16) = 512.
User Register (UREG)
The User Register UREG[7:0], in Mode 3 transmit during
Nybble 7 (UREG[7:4]) and Nybble 8 (UREG[3:0]).
Use with State Vector Enabled
When Mode 3 is selected with the state vector enabled and the
auto-zero not enabled, the full range sensor data coding is used
(see the Data Frame Transmission Format section). Therefore,
the positive and negative full-scale ends of the sensor data range
overlap with the device data and status data codes. The state vector
distinguishes between the types of transmitted data. The state
vector identifies the device data (state vector = 001b) and status
codes as status/error data (state vector = 110b). Normal opera-
tion sensor data has a state vector of 000b (see Table 19).
Illegal Configuration: Mode 3 and 8-Bit Data
A configuration error is flagged if Phase 2 Mode 3 is selected
and the configuration register is programmed to select the 8-bit
data mode. In this case, the error state is entered immediately
instead of Phase 1. See the Error Detection section for more
information.
16
Analog Devices
Accelerometer
100 g
50 g
200 g
Other
RS = 0, BDE = 0
RS = 0, BDE = 1
RS = 1, BDE = 0
RS = 1, BDE = 1
0 to 255
0 to 255
NN16
DATA
16
32 MESSAGES
Binary Code
0000
0001
0010
XXXX
XXXX
001
10000
101
00001
0011
0000
0001
0010
0011
XXXX
XXXX
PHASE 3
NN16
3
DATA
16
Nybble Sent
0011
0000
1010
0001
0000
0001
0010
0011
0000
0001
0010
0011
XXXX
XXXX
XXXX
XXXX
ADXL180