ADIS16505-2SLASHPCBZ datasheet(30/41 Pages) AD

30 / 41 page

ADIS16505

Data Sheet

Rev. C | Page 30 of 41

X-Axis Delta Velocity (X_DELTVEL_LOW and

X_DELTVEL_OUT)

Table 63. X_DELTVEL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x30, 0x31

Not applicable

Table 64. X_DELTVEL_LOW Bit Definitions

Bits

Description

[15:0]

X-axis delta velocity data; additional resolution bits

Table 65. X_DELTVEL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x32, 0x33

Not applicable

Table 66. X_DELTVEL_OUT Bit Definitions

Bits

Description

[15:0]

X-axis delta velocity data; twos complement,

±100 m/sec range, 0 m/sec = 0x0000;

1 LSB = +100 m/sec ÷ 215 = ~+0.003052 m/sec

The X_DELTVEL_LOW (see Table 63 and Table 64) and

X_DELTVEL_OUT (see Table 65 and Table 66) registers

contain the delta velocity data for the x-axis.

Y-Axis Delta Velocity (Y_DELTVEL_LOW and

Y_DELTVEL_OUT)

Table 67. Y_DELTVEL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x34, 0x35

Not applicable

Table 68. Y_DELTVEL_LOW Bit Definitions

Bits

Description

[15:0]

Y-axis delta velocity data; additional resolution bits

Table 69. Y_DELTVEL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x36, 0x37

Not applicable

Table 70. Y_DELTVEL_OUT Bit Definitions

Bits

Description

[15:0]

Y-axis delta velocity data; twos complement,

±100 m/sec range, 0 m/sec = 0x0000;

1 LSB = +100 m/sec ÷ 215 = ~+0.003052 m/sec

The Y_DELTVEL_LOW (see Table 67 and Table 68) and

Y_DELTVEL_OUT (see Table 69 and Table 70) registers

contain the delta velocity data for the y-axis.

Z-Axis Delta Velocity (Z_DELTVEL_LOW and

Z_DELTVEL_OUT)

Table 71. Z_DELTVEL_LOW Register Definition

Addresses

Default

Access

Flash Backup

0x38, 0x39

Not applicable

Table 72. Z_DELTVEL_LOW Bit Definitions

Bits

Description

[15:0]

Z-axis delta velocity data; additional resolution bits

Table 73. Z_DELTVEL_OUT Register Definition

Addresses

Default

Access

Flash Backup

0x3A, 0x3B

Not applicable

Table 74. Z_DELTVEL_OUT Bit Definitions

Bits

Description

[15:0]

Z-axis delta velocity data; twos complement,

±100 m/sec range, 0 m/sec = 0x0000;

1 LSB = +100 m/sec ÷ 215 = ~+0.003052 m/sec

The Z_DELTVEL_LOW (see Table 71 and Table 72) and

Z_DELTVEL_OUT (see Table 73 and Table 74) registers

contain the delta velocity data for the z-axis.

Delta Velocity Resolution

Table 75 and Table 76 offer various numerical examples that

demonstrate the format of the delta velocity data in both 16-bit

and 32-bit formats.

Table 75. 16-Bit Delta Velocity Data Format Examples

Velocity (m/sec)

Decimal

Hex

Binary

+100 × (215 − 1)/215

+32,767

0x7FFF

0111 1111 1111 1111

+100/214

0x0002

0000 0000 0000 0010

+100/215

0x0001

0000 0000 0000 0001

0x0000

0000 0000 0000 0000

−100/215

−1

0xFFFF

1111 1111 1111 1111

−100/214

−2

0xFFFE

1111 1111 1111 1110

−100

−32,768

0x8000

1000 0000 0000 0000

Table 76. 32-Bit Delta Velocity Data Format Examples

Velocity (m/sec)

Decimal

Hex

+100 × (231 − 1)/231

+2,147,483,647

0x7FFFFFFF

+100/230

0x00000002

+100/231

0x00000001

0x00000000

−100/231

−1

0xFFFFFFFF

−100/230

−2

0xFFFFFFFE

−100

+2,147,483,648

0x80000000

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