參數(shù)資料
型號： ISL6424
廠商： Intersil Corporation
英文描述： Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs
中文描述： 雙輸出LNB電源和控制穩(wěn)壓器，帶有I2C接口的先進衛(wèi)星機頂盒設(shè)計
文件頁數(shù)： 10/12頁
文件大?。?/td> 374K
代理商： ISL6424
10
FN9175.3
September 13, 2005
System Register Format
R, W = Read and Write bit
R = Read-only bit
All bits reset to 0 at Power-On
Transmitted Data (
I
2
C
bus WRITE mode)
When the R/W bit in the chip is set to 0, the main
microprocessor can write on the system registers (SR1/SR2)
of the ISL6424 via I
2
C bus. These will be written by the
microprocessor as shown below. The spare bits of SR1/SR2
can be used for other functions.
TABLE 3. SYSTEM REGISTER 1 (SR1)
R, W
R, W
R, W
R, W
R, W
R, W
R, W
R
SR1
DCL
ISEL1
ENT1
LLC1
VSEL1
EN1
OLF1
TABLE 4. SYSTEM REGISTER 2 (SR2)
R, W
R, W
R, W
R, W
R, W
R, W
R
R
SR2
ISEL2
ENT2
LLC2
VSEL2
EN2
OTF
OLF2
TABLE 5. SYSTEM REGISTER (SR1 AND SR2) CONFIGURATION
SR
DCL
ISEL1
ENT1
LLC1
VSEL1
EN1
OLF1
FUNCTION
0
X
X
X
0
0
X
X
SR1 is selected
0
X
X
X
0
0
1
X
Vout1 = 13V, Vboost1 = 13V + Vdrop
0
X
X
X
0
1
1
X
Vout1 = 18V, Vboost1 = 18V + Vdrop
0
X
X
X
1
0
1
X
Vout1 = 14V, Vboost1 = 14V + Vdrop
0
X
X
X
1
1
1
X
Vout1 = 19V, Vboost1 = 19V + Vdrop
0
X
X
0
X
X
1
X
22kHz tone is controlled by DSQIN1 pin
0
X
X
1
X
X
1
X
22kHz tone is ON, DSQIN1 is disabled
0
X
0
X
X
X
1
X
Iout1 = 425mA max.
0
X
1
X
X
X
1
X
Iout1 = 775mA max.
0
1
X
X
X
X
1
X
Dynamic current limit NOT selected
0
0
X
X
X
X
1
X
Dynamic current limit selected
0
X
X
X
X
X
0
X
PWM and Linear for channel 1 disabled
SR
ISEL2
ENT2
LLC2
VSEL2
EN2
OTF
OLF2
FUNCTION
1
X
X
X
X
X
X
X
SR2 is selected
1
X
X
0
0
1
X
X
Vout2 = 13V, Vboost2 = 13V + Vdrop
1
X
X
0
1
1
X
X
Vout2 = 18V, Vboost2 = 18V + Vdrop
1
X
X
1
0
1
X
X
Vout2 = 14V, Vboost2 = 14V + Vdrop
1
X
X
1
1
1
X
X
Vout2 = 19V, Vboost2 = 19V + Vdrop
1
X
0
X
X
1
X
X
22kHz tone is controlled by DSQIN2 pin
1
X
1
X
X
1
X
X
22kHz tone is ON, DSQIN2 is disabled
1
0
X
X
X
1
X
X
Iout2 = 425mA max.
1
1
X
X
X
1
X
X
Iout2 = 775mA max.
1
X
X
X
X
0
X
X
PWM and Linear for channel 2 disabled
NOTE: OTF and OLF1&2 are “Read Only” bits and X is a “Don’t Care” for the function specified.
ISL6424
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