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參數(shù)資料
| 型號(hào)： | CXA1782CR |
| 廠商： | Sony Corporation |
| 英文描述： | RF Signal Processing Servo Amplifier for CD players(用于CD播放器的伺服放大器(可處理射頻信號(hào))) |
| 中文描述： | 射頻信號(hào)處理伺服放大器（用于光盤播放器的伺服放大器的CD播放器（可處理射頻信號(hào)）） |
| 文件頁數(shù)： | 18/31頁 |
| 文件大小： | 535K |
| 代理商： | CXA1782CR |
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– 18 –
CXA1782CQ/CR
Focus Servo
FZC
9k
51k
FE
1
2
3
4
10k
2200p
22k
FEO
FEI
100k
DFCT
FS4
Focus
phase
Compensation
68k
100k
FE_O
6
FOCUS COIL
7
FE_M
100k
17
ISET 120k
11μ
22μ
FS2
FS1
50k
50k
8
11
5
4.7μ
0.01μ
510k
0.1μ
FSET
FLB
40k
0.47μ
0.1μ
680k
FDFCT
FGD
SRCH
The above figure shows a block diagram of the focus servo.
Ordinarily the FE signal is input to the focus phase compensation circuit through a 68k
resistance; however,
when DFCT is detected, the FE signal is switched to pass through a low-pass filter formed by the internal
100k
resistance and the capacitance connected to Pin 3. When this DFCT prevention circuit is not used,
leave Pin 3 open. The defect switch operation can be enabled and disabled with command.
The capacitor connected between Pin 5 and GND is a time constant to raise the low frequency in the normal
playback state.
The peak frequency of the focus phase compensation is approximately 1.2kHz when a resistance of 510
is
connected to Pin 11.
The focus search height is approximately ±1.1Vp-p when using the constants indicated in the above figure.
This height is inversely proportional to the resistance connected between Pin 17 and VEE. However, changing
this resistance also changes the height of the track jump and sled kick as well.
The FZC comparator inverted input is set to 15% of V
CC
and VC (Pin 48); (V
CC
– VC)
×
15%.
510k
resistance is recommended for Pin 11.
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| CXA1816-0000-000N00M40E8 | 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray |
| CXA1816-0000-000N00M427F | 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray |
| CXA1816-0000-000N00M427H | 功能描述:大功率LED - 白色 Warm White, 2700K 1682lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:2700 K 光通量:1682 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray |
| CXA1816-0000-000N00N20E6 | 功能描述:大功率LED - 白色 Warm White, 3500K 1762lm, 450mA, 80CRI RoHS:否 制造商:Cree, Inc. 照明顏色:Warm White 顏色溫度:3500 K 光通量:1762 lm 顯示角:115 deg 正向電流:450 mA 正向電壓:37 V 安裝風(fēng)格:SMD/SMT 系列:CXA1816 封裝:Tray |
| CXA1816-0000-000N00N20E7 | 制造商:Cree 功能描述:LED Uni-Color White 2-Pin SMD Tray 制造商:Cree 功能描述:LED, HB, WHITE, 1590LM, Series:XLamp CXA1816, LED Color:White, CCT:3000K, Luminous Flux @ Test:1590lm, Forward Current @ Test:450mA, Forward Current If Max:900mA, Forward Voltage @ Test:37V, Viewing Angle:115, Opto Case Style:- , RoHS Compliant: Yes 制造商:Cree 功能描述:XLamp CXA Light Emitting Diode White |
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