- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄298896 > C1851BCU (NEC Corp.) I2C BUS-COMPATIBLE US MTS PROCESSING LSI PDF資料下載
參數(shù)資料
| 型號(hào)： | C1851BCU |
| 廠商： | NEC Corp. |
| 英文描述： | I2C BUS-COMPATIBLE US MTS PROCESSING LSI |
| 中文描述： | I2C總線兼容美國的多邊貿(mào)易體制處理LSI |
| 文件頁數(shù)： | 13/60頁 |
| 文件大?。?/td> | 447K |
| 代理商： | C1851BCU |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁當(dāng)前第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
20
PC1851B
Data Sheet S13417EJ2V0DS00
2.3 dbx Noise Reduction Block
All the filters required for TV-dbx Noise Reduction are incorporated. These filter responses are adjusted by
setting all the FILTER SETTING bits (Write register, subaddress 02H, bits D0 to D5).
(1) LPF
This LPF has traps at fH and 24 kHz each. The fH trap filter minimizes interference by the fH signal which is not
synchronized with the pilot signal (for example, leakage of the synchronous idle and buzz from the video signal).
(2) 408-Hz LPF
This filter is a de-emphasis filter. Its transfer function is as follows:
f
1 + j
5.23k
T(f) =
f
1 + j
408
(3) Variable Emphasis
It is also called the spectral VCA. It is controlled by the spectral RMS. The transfer function is as follows:
f
1 + 51b
1 + j
x
20.1k
b + 1
S–1 (f, b) =
f
1 + 51
1 + j
x
20.1k
b + 1
where “b” is the variable transferred from the spectral RMS for controlling.
(4) Wide-band VCA
A VCA whose operating frequency range is mainly low to mid frequencies and controlled by the wide-band RMS.
The transfer function is as follows:
W–1 (a) = a
where “a” is the variable transferred from the wide-band RMS for controlling.
(5) 2.19-kHz LPF
This filter is a de-emphasis filter. Its transfer function is as follows:
f
1 + j
62.5k
T(f) =
f
1 + j
2.19k
(6) Spectral RMS Filter
A filter that limits the band width of the signal input to the RMS which controls the variable emphasis. The
transfer function is as follows:
ff
( j
)
2
j
7.66k
3.92k
T (f) =
x
ff
f
1 + j
+ ( j
)
2
1 + j
7.31k
7.66k
3.92k
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| C1926 | TELECOM TRANSFORMER |
| C1972 | TELECOM TRANSFORMER |
| C200-24308-15-P-C-C | 15 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, CRIMP |
| C200-24308-15-P-C-N | 15 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, CRIMP |
| C200-24308-15-P-P-C | 15 CONTACT(S), MALE, D SUBMINIATURE CONNECTOR, SOLDER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C1854 | 制造商:TE Connectivity 功能描述:TRANSFORMER - Tape and Reel |
| C1854/J | 功能描述:BLOCK 制造商:eaton 系列:* 零件狀態(tài):有效 標(biāo)準(zhǔn)包裝:1 |
| C1854-J | 制造商:Cooper Bussmann 功能描述:BLOCK - Bulk |
| C1856 | 制造商:TE Connectivity 功能描述:TRANSFORMER - Tape and Reel |
| C1858 | 制造商:n/a 功能描述:_ |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。