參數(shù)資料
型號(hào)： ISL5416EVAL1
廠商： Intersil Corporation
英文描述： Four-Channel Wideband Programmable DownConverter
中文描述： 四通道可編程寬帶下變頻器
文件頁(yè)數(shù)： 51/71頁(yè)
文件大?。?/td> 1128K
代理商： ISL5416EVAL1
51
18:16
CIC STAGES. Number of CIC integrator/comb pairs (1-5). Stages are enabled starting with the largest accumulator.
000 = 1 stage;
001 = 2 stages;
010 = 3 stages;
011 = 4 stages;
100 = 5 stages;
Load with the number of stages minus 1.
15:0
CIC DECIMATION FACTOR. Load with (decimation - 1).
TABLE 58. NCO/MIXER/CIC CONTROL (IWA = *005h)
RESET STATE = 0x00000000h
P(31:0)
FUNCTION
TABLE 59. PN GAIN (IWA = *006h)
RESET STATE = 0x00000000h
P(31:0)
FUNCTION
31:16
UNUSED.
15:0
PN LEVEL. Level of the PN generator data that is added to the mixer output when the PN generator is enabled in IWA = *001h, bit 16.
TABLE 60. FIR1, FIR2, POST-RESAMPLER CONTROL (IWA = *007h)
RESET STATE = 0x00000000h
P(31:0)
FUNCTION
31:19
UNUSED.
18:16
DECIMATION OF THE RESAMPLER DECIMATOR BLOCK. Load with the desired decimation factor minus one.
000 = Decimation of 1
111 = Decimation of 8
15
RESERVED. Set to 0.
14:12
FIR2 REQUIRED CLOCKS. This value should be set to: ceil (#TAPS/8) - 1.
11
RESERVED. Set to 0.
10:8
FIR2 DECIMATION. Available decimation through FIR2 block is 1-8. Set the value to: decimation factor - 1.
7
FIR1 ENABLE HBF MODE.
1 = Half Band Filter mode.
0 = normal mode.
6:4
FIR1 REQUIRED CLOCKS. Set to:
ceil (#TAPS/4) - 1.
3
RESERVED. Set to 0.
2:0
FIR1 DECIMATION. Available decimation through FIR1 block is 1-8. Set the value to: decimation factor - 1.
TABLE 61. AGC CONTROL, MEAN/MEDIAN, DELAY, MODE (IWA = *008h)
RESET STATE = 0x00000000h
P(31:0)
FUNCTION
31:16
UNUSED.
15
RESERVED. Set to 0.
14
REAL TIME AGC GAIN OUTPUT SOURCE.
0 = the continuously updated loop filter output is provided to the output section as the “real time” AGC gain.
1 = the sampled loop filter output (sampled when the interval count is 0) is provided to the output section as the “real time” AGC gain.
13:8
DATA DELAY. This value is the number of samples that data is delayed to allow for AGC settling.
0x00 = no delay.
0x3F = 1 sample
. . .
0x01 = 63 samples.
7
LOOP GAIN
1 MEAN/MEDIAN.
1 = AGC settles to mean of the signal if LG1 is selected.
0 = AGC settles to median of the signal.
ISL5416
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