CSG14K_CSG8K datasheet(102/114 Pages) OSRAM

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CSG14K_CSG8K

Functional Description

Datasheet

• PUBLIC

DS000571

• v2-01 • 2023-Feb-10

113

│ 101

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 register “Chuck Temperature” (see Figure 126).

●

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 126). 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 129. Note that

the registers should only be written to the specified BLOCK_IDs.

Figure 129:

Enable OB Outputs Sequence

Bank

Address

BLOCK_ID

Value

DATA_CH_CTRL

1027

DATA_CH_CTRL

1027

Using the DOUT_OB_* channels is optional. Using the channels requires routing additional

output channels to the receiving system.

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