ISL6422 Datasheet, PDF (15/19 Pages) Intersil Corporation – Dual Output LNB Supply and Control Voltage Regulator with I2C Interface for Advanced Satellite Set-Top Box Designs

ISL6422
TABLE 15. STATUS REGISTER SR5 CONFIGURATION
SR5H SR5M SR5L
CABF2 OUVF2 OLF2 BCF2
FUNCTION
1
0
0
X
X
X
X
X SR5 is selected
1
0
0
X
X
X
0
X I_OUT ≤ set limit, Normal Operation
1
0
0
X
X
X
1
X I_OUT > Static/Dynamic Limiting Mode/Power blocks disabled
1
0
0
X
X
X
X
0 I_OBCK ≤ set limit, Normal Operation
1
0
0
X
X
X
X
1 I_OBCK > Dynamic Limiting Mode/Power blocks disabled
1
0
0
X
X
0
X
X V_IN/V_OUT within specified range
1
0
0
X
X
1
X
X V_IN/V_OUT is not within specified range
1
0
0
X
0
X
X
X Cable is connected, Io is >20mA
1
0
0
X
1
X
X
X Cable is open, Io <2mA
NOTE: X indicates “Read Only” state.
TABLE 16. TONE REGISTER SR6 CONFIGURATION
SR6H SR6M SR6L ENT2 MSEL2 TTH2
X
X
FUNCTION
1
0
1
X
X
X
X
X SR2 is selected
1
0
1
0
0
X
X
X Int Tone = 22kHz, modulated by EXTM2, T_r, T_f = 10µs typ
1
0
1
0
1
X
X
X Ext 22k modulated input, T_r, T_f = 10µs typ
1
0
1
1
0
X
X
X Int Tone = 22kHz, modulated by ENT2 bit, T_r, T_f = 10µs typ
1
0
1
X
X
0
X
X TXT2 = 0; Decoder Rx threshold is set at 200mV max
1
0
1
X
X
1
X
X TXT2 = 0; Decoder Tx threshold is set at 400mV min
NOTE: X is a “Don’t Care” for the Write mode.
TABLE 17. COMMAND REGISTER SR7 CONFIGURATION
SR7H SR7M SR7L DCL2 VSPEN2 ISEL2R ISEL2H ISEL2L
FUNCTION
1
1
0
X
X
X
X
X SR7 is selected
1
1
0
0
X
0
X
X I_OUT1 = 275mA max.
1
1
0
0
X
1
0
0 I_OUT1 = 350mA max.
1
1
0
0
X
1
0
1 I_OUT1 = 515mA max.
1
1
0
0
X
1
1
0 I_OUT1 = 635mA max.
1
1
0
0
X
1
1
1 I_OUT1 = 800mA max.
1
1
0
1
X
X
X
X Dynamic current limit NOT selected
1
1
0
0
X
X
X
X Dynamic current limit selected
1
1
0
X
0
X
X
X SELVTOP H/W pin Enabled
1
1
0
X
1
X
X
X SELVTOP H/W pin Disabled
NOTE: X is a “Don’t Care” for the Write mode.
15
FN9190.1
April 10, 2007