Samsung VP-L900, Руководство по обучению

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Circuit Operating Description
6-26 Samsung Electronics
6-3 CAMERA signal
The signal which is input with the LENS is delivered in CCD Sensor.
(It passes through the OLPF.)It creates an electric signal with conversion of the CCD.
From the IC it becomes the CDS and the AGC(Auto Gain Control).
10Bit AD it is converted.The Dis after being rough, it is input in DSP IC.
The input digital signal separates with the Y and the Color. The digital the signal passes Y Signal Process and
Color Signal Process. Each after having become the DA, it outputs the signal where the Y+Sync and
Color Burst have become the Mix from Encoder Block of the DSP.
6-3-1 TG/SSG
The Main the Clock from DSP TG Block it uses a circuit and all Pulse which are necessary from Camera System it
makes. [CCD drive Clock(H1,H2,RG,V1,V2,V3,V4,Vsb), CDS Clock(SHP,SHD,AD Clock,Clamp Pulse), Sync
Signal(HD,VD,4Fsc...) and Lcd/Cvf Drive Pulse] The Timming is decided consequently in the CCD.
By a circuit the Trimming being possible, it will use the Registor of the DSP and it will be able to control the Delay
and the Timming
(1) CCD Drive clock
The horizontality transmission Clock from CCD Pixel outputs the signal which creates is the Pulse.
By a previously Pixel the output is decided CCD pixel DATA in 1 Field.
The horizontality the transmission clock 1H is the clock which it controls at period.
The XSUB(Shutter Pulse) is used with the Pulse which eliminates an electric charge.
(2) CDS/AGC/AD IC clock
The PBLK (PREblacking), the OBCLP (Optical black clamp) it is a H period.
The SHP (sample hold plate), the SHD (sample hold data) and the ADclock it is a pixel unit clock.
The pixel the unit clcok follows in actual PCB plan condition and the effect is many in the noise.
It will be able to change the timing of the each clock in order, the Register is allocated.
(3) SSG(sync signal generator)
It outputs a motive signal.(FLD, VD, HD)
By a necessity there is also a case which outputs composite video sync.
CCD
CDS/AGC
/ADC
ICA01
DIS IC
ICD01
control
parts
MICOM
MICOM I/F
OSC
TG/SSG
Y Gamma
C Gamma
Color
siginal
control
brightness
siginal
control
Encoder
Y+Sync
C+Burst
to VCR
Block
(Camera Mode Main OSC)
ICP01 DSP
V.DRIVER
ICP02
Fig. 6-21