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参数资料
| 型号： | LC9947G |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDFM20 |
| 封装： | PLASTIC, DIP-20 |
| 文件页数： | 7/9页 |
| 文件大小： | 101K |
| 代理商： | LC9947G |
5. Dark signal
Block all light falling on the imaging element surface and measure the CCD output signal from the center of the
image. At this time, do not take the difference between the signal level and the optical black segment level, but rather
take the difference with the no signal level that has no pixel information. See Figure 5.
Fig. 5 Structure of the 1H Period
CCD B&W Camera Block Diagram
Fig. 6 CCD B&W Camera Block Diagram
Block Descriptions
No. 4971-7/9
LC9947G
OSC
Generates the basic frequency (28.636 MHz) for synchronization signals and timing pulses
Timing pulse generator IC
Generates the pulses required for the video signal (SYNC, blanking, etc.) and the pulses required for driving
the CCD. This IC includes a built-in CCD horizontal driver and provides an electronic iris function.
Driver IC
Amplifies the pulses described above to their prescribed levels and drives the CCD device.
Level shifting circuit
Drive pulse level shifter
Signal processing IC
Video signal processing, including sample and hold, clamping, AGC, gamma correction, white clipping, and
pedestal addition.
Optical black segment
Optical black
segment
No signal
segment
Valid pixel segment
NSUB driver
Integrator
Imaging segment
transfer pulse
Level
shifting
circuit
Vertical driver
IC
LC89901V
CCD
LC9947G
(EIA)
Timing
IC
LC99012A
or
LC99012A-S
Signal processing
IC
LA7265W
Storage segment transfer pulse
Horizontal segment transfer driver
Reset pulse
Iris intensity
signal
Video output
Level
shifting
circuit
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC9948G | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:1/5 Optical Size CCIR B/W Solid-State Image Sensor |
| LC9949G | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:1/6 Optical Size EIA B/W Solid-State Image Sensor |
| LC99501-RB5 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Video Camera Circuit |
| LC9965 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
| LC9967 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Optoelectronic |
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