CSG14K_CSG8K datasheet(101/113 Pages) AMSCO

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v1-00 • 2020-Dec-15

112

│ 100

In section 7.8.5 we described how to read out data from OTP fuses.

Calibration of the temperature sensor readout value involves two steps:

Calculate the calibration gain coefficient using following equation:

Equation 18:

�� =

��,��[°��] + 273.15

Which uses following parameters:

●

Twafer,expected is the expected temperature at wafer test, which is close to 60 ⁰C. The exact value

is stored in OTP

●

Twafer,measured is the measured (uncalibrated) temperature sensor value at wafer test. The values

can be calculated based on the temperature sensor readout values TSENS_REF and

TSENS_CONV, as

stored in OTP registers “TSENSx_CONV” and “TSENSx_REF” (see

Figure 124). Using both values, the corresponding temperature value can be calculated using

Equation 19.

This calibration gain coefficient is fixed and only needs to be calculated once.

Note that a separate calibration gain coefficient needs to be calculated for both temperature sensors.

Calculate the calibrated temperature measurement value using following equation:

Equation 19:

�� [°��] = �� × (��,��[°��] + 273.15) − 273.15

7.8.7

Enable Optical Black Outputs

The OB pixels on the right side of the pixel array that are used for on-chip OB correction can be read

out through the DOUT_OB_* output channels. By default, these channels are disabled.

To enable the DOUT_OB_* channels, use the SPI sequence listed in Figure 127. Note that the

registers should only be written to the specified BLOCK_IDs.

Figure 127:

Enable OB Outputs Sequence

Bank

Address

BLOCK_ID

Value

DATA_CH_CTRL

1027

DATA_CH_CTRL

1027

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