CS1630 datasheet(48/56 Pages) APEX

48 / 56 page

CS1630/31

DS954F2

6.39 Configuration 58 (Config58) – Address 90

6.40 Configuration 59 (Config59) – Address 91

654

SHUTDWN3

SHUTDWN2

SHUTDWN1

SHUTDWN0

LOW_SAT2

LOW_SAT1

LOW_SAT0

DIM_TEMP

Number

Name

Description

[7:4]

SHUTDWN[3:0]

Configures the 8-bit code value corresponding to temperature threshold

TempShutdown. If the temperature exceeds this threshold, the device enters an

external overtemperature state and shuts down.

The wakeup temperature code is configured as an offset from the eOTP tem-

perature code and the shutdown temperature code is configured as an offset

from the wakeup temperature code; TempeOTP < TempWakeup < TempShutdown

[3:1]

LOW_SAT[2:0]

Sets the lower saturation limit for the 8-bit temperature code provided to the

color system from the fast low pass filter before it is used for polynomial com-

putations.The lower saturation limit is given by:

[0]

DIM_TEMP

Configures the external overtemperature protection (eOTP) dim with tempera-

ture feature, which decreases the second stage dim level once the tempera-

ture measured using the external NTC connected to pin eOTP exceeds the

temperature threshold set using eOTP[4:0], TempeOTP (see “Configuration 59

(Config59) – Address 91” on page 48).

0 = Disable

1 = Enable

654

eOTP4

eOTP3

eOTP2

eOTP1

eOTP0

HI_SAT2

HI_SAT1

HI_SAT0

Number

Name

Description

[7:3]

eOTP[4:0]

Configures 8-bit code value CODETEMPeOTP corresponding to the tempera-

ture TempeOTP set point at which the eOTP dim with temperature feature is

enabled.

[2:0]

HI_SAT[2:0]

Sets the higher saturation limit for the 8-bit temperature code provided to the

color system before it is used for polynomial computations.

000 = CODETEMPShutdown

001 = 100

010 = 120

011 = 140

100 = 160

101 = 180

110 = 200

111 = 220

CODETEMPShutdown

CODETEMPWakeup

SHUTDWN



[3:0] 4





LOW_SAT[2:0]







CODETEMPeOTP

eOTP



[4:0] 4





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