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參數(shù)資料
| 型號(hào)： | LC07410LG |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PBGA40 |
| 封裝： | 4.40 X 3.60 MM, FLGA-40 |
| 文件頁數(shù)： | 14/22頁 |
| 文件大小： | 473K |
| 代理商： | LC07410LG |
LC07410LG
No.A1345-21/36
Programmable Filter
A second order biquad filter that allows coefficients to be freely set is used for the programmable filter.
A notch filter, LPF, or other filter can be configured by setting the coefficients, a1, a2, b0, b1, and b2, in 16-bit 2’s
complement notation in a register. Make sure that the corresponding filter is OFF when setting or modifying
coefficients.
ADRS
Bit
Name
Init
Description
[7]
FILTER2
0b
Set the programmable filter2
1: ON 0: OFF
0Dh
[6]
FILTER1
0b
Set the programmable filter1
1: ON 0: OFF
1Bh
[7:0]
A1[15:8]
00h
1Ch
[7:0]
A1[7:0]
00h
Set the programmable filter1 coefficient a1
1Dh
[7:0]
A2[15:8]
00h
1Eh
[7:0]
A2[7:0]
00h
Set the programmable filter1 coefficient a2
1Fh
[7:0]
B0[15:8]
40h
20h
[7:0]
B0[7:0]
00h
Set the programmable filter1 coefficient b0
21h
[7:0]
B1[15:8]
00h
22h
[7:0]
B1[7:0]
00h
Set the programmable filter1 coefficient b1
23h
[7:0]
B2[15:8]
00h
24h
[7:0]
B2[7:0]
00h
Set the programmable filter1 coefficient b2
25h
[7:0]
A1[15:8]
00h
26h
[7:0]
A1[7:0]
00h
Set the programmable filter2 coefficient a1
27h
[7:0]
A2[15:8]
00h
28h
[7:0]
A2[7:0]
00h
Set the programmable filter2 coefficient a2
29h
[7:0]
B0[15:8]
40h
2Ah
[7:0]
B0[7:0]
00h
Set the programmable filter2 coefficient b0
2Bh
[7:0]
B1[15:8]
00h
2Ch
[7:0]
B1[7:0]
00h
Set the programmable filter2 coefficient b1
2Dh
[7:0]
B2[15:8]
00h
2Eh
[7:0]
B2[7:0]
00h
Set the programmable filter2 coefficient b2
DSP Route Setting
The route of digital filter is selected by the SEL_USE_DSP register.
ADRS
Bit
Name
Init
Description
0Fh
[1]
SEL_USE_DSP
0b
DSP Route setting
1: DSP inserted in PB (DAC) side
0: DSP inserted in REC (ADC) side
Note: Programmable Filter and Wind Cut HPF functions serve as the DSP functions.
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