參數(shù)資料
型號(hào)： ISL5239
廠商： Intersil Corporation
英文描述： Pre-Distortion Linearizer
中文描述： 預(yù)失真線性化電路
文件頁(yè)數(shù)： 28/31頁(yè)
文件大?。?/td> 653K
代理商： ISL5239
28
TABLE 36. COEFFICIENT INDEX
TYPE: CORRECTION FILTER, ADDRESS: 0x29
BIT
FUNCTION
DESCRIPTION
15:8
Reserved
Not used.
7:0
Coefficient Address
Pointer to current LUT location. Default is 0. 0x00-0x7F are I coefficients, 0x80-0xff are Q coefficients.
Master register to slave register transfer occurs after the processor interface last write to the Q
coefficient. The circuit uses the slave registers. All reads are from the slave register values. There are
13 each I and Q coefficients.
TABLE 37. COEFFICIENT VALUE
TYPE: CORRECTION FILTER, ADDRESS: 0x2a
BIT
FUNCTION
DESCRIPTION
15:0
Coefficient Data
Coefficient data access. Default = 0, non centered coef. Default = 1 - 2
(1-15)
centered coef.
TABLE 38. STATUS
TYPE: CORRECTION FILTER, ADDRESS: 0x2b
BIT
FUNCTION
DESCRIPTION
15:4
Reserved
Not used.
3:2
Reserved
Internal use only.
1
I Channel Saturation
When high indicates the correction filter saturated at least one sample since the last control word 0x28,
bit 2 command.
0
Q Channel Saturation
When high indicates the correction filter saturated at least one sample since the last control word 0x28,
bit 2 command.
TABLE 39. CONTROL
TYPE: OUTPUT DATA CONDITIONER, ADDRESS: 0x30
BIT
FUNCTION
DESCRIPTION
15:8
Reserved
Not used.
8
Reserved
Internal use only.
7:4
Output Word Width
Select the width of the output data bus IOUT<17:0> and QOUT<17:0>.
0000 - 8 bits
0001 - 9 bits
0010 - 10 bits
0011 - 11 bits
0100 - 12 bits
0101 - 13 bits
0110 - 14 bits
0111 - 15 bits
1000 - 16 bits
1001 - 17 bits
1010 - 18 bits (default)
3
Output Format
Set high to select offset binary, low to select 2’s compliment.
2
Status clear
Set high to clear all status bits, low to enable bits to be active.
1
Bypass
Set high (default) to bypass, low to enable output processing.
0
Reserved
Not used.
ISL5239
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