ISL5239
TABLE 26. LOOK-UP TABLE REAL DATA
TYPE: PRE-DISTORTER, ADDRESS 0x17
BIT
15:0
BIT
15:13
12
11:9
8
7:6
5:4
3:1
0
BIT
15:0
BIT
15:0
BIT
15:0
BIT
FUNCTION
LUT Data I
FUNCTION
Reserved
Serial Output Enable
Reserved
Serial Input Enable
Reserved
Power Integrator Period
Reserved
Thermal Coefficient B
FUNCTION
Thermal Coef. A
FUNCTION
Thermal Coef. B
FUNCTION
Power Integrator <15:0>
FUNCTION
DESCRIPTION
Real distortion data written to or read back from LUT. Selectable as (-0.5...(0.5-increment)) in increments
of 2 -16 . Default = 0.
TABLE 27. MEMORY EFFECT CONTROL
TYPE: PRE-DISTORTER, ADDRESS: 0x18
DESCRIPTION
Not used.
Set to high to enable the external serial interface output pins. Default is low, disabled.
Not used
Set to high to enable the external serial interface input pin SERIN data to override the processor settings.
Default is low, disabled, processor settings over-ride serial inputs.
Not used.
Select the number of samples in the power integrate/dump operation. Also controls the SERCLK
frequency.
00 - 128 samples, SERCLK runs at CLK/4.
01 - 64 samples, SERCLK runs at CLK/2.
10 - 32 samples, SERCLK runs at CLK.
Not used.
Set to high to select A 2 , low to select B (default).
TABLE 28. MEMORY EFFECT COEFFICIENT A
TYPE: PRE-DISTORTER, ADDRESS: 0x19
DESCRIPTION
Coefficient A for memory effect selectable from (-1.0...(1-increment)) in increments of 2 -15 . If control word
0x18, bit 8 high, reading this control word returns the value from SERIN.
TABLE 29. MEMORY EFFECT COEFFICIENT B
TYPE: PRE-DISTORTER, ADDRESS: 0x1a
DESCRIPTION
Coefficient B for memory effect selectable from (-1.0...(1-increment)) in increments of 2 -15 . If control word
0x18, bit 8 high, reading this control word returns the value from SERIN.
TABLE 30. MEMORY EFFECT POWER INTEGRATOR LSW
TYPE: PRE-DISTORTER, ADDRESS: 0x1b
DESCRIPTION
Power integrator LSW.
TABLE 31. MEMORY EFFECT POWER INTEGRATOR MSW
TYPE: PRE-DISTORTER, ADDRESS: 0x1c
DESCRIPTION
15:0
Power Integrator <31:16> Power integrator MSW. The Power Integrator [31:0] forms an unsigned fixed point number with 9 integer
and 23 fractional bits (u9.23).
26
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