參數(shù)資料
型號(hào)： M61203CFP
廠商： Mitsubishi Electric Corporation
英文描述： NTSC TV SIGNAL PROCESSOR
中文描述： NTSC電視信號(hào)處理器
文件頁(yè)數(shù)： 12/51頁(yè)
文件大?。?/td> 786K
代理商： M61203CFP
NTSC TV SIGNAL PROCESSOR
M61203CFP
MITSUBISHI ICs (TV)
MITSUBISHI
ELECTRIC
(1) Horizontal blanking pulse adjustment
The timing and pulse width of the horizontal blanking pulse should be as shown in the following figure by
adjusting the variable resistor of the single shot multi vibrator.
The variable resistor at pin 15 of TTL IC 'M74LS221P' is used to fix the timing at 8μs and that at pin 7 is used to
fix the pulse width at 12μs.
Setup instruction for evaluation PCB
(2) VIF VCO adjustment
Before measurement of M61203CFP, VIF VCO must be adjusted by the following procedure.
(1) Input I
(45.75MHz : 0, 58.75MHz : 1)
(2) Input I
(3) Set the DC voltage at pin 60 (AFT OUT) to 2.5V by adjusting I
(4) Input I
2
C bus data of VIF Freq (01H D6), according as IF frequency.
2
C bus data of VIF Defeat ON (07H D7 = 1).
2
C bus data of VCO control (01H D0-D5).
2
C bus data of VIF Defeat OFF (07H D7 = 0).
pin 7 (H OUT)
Horizontal blanking
pulse
8μs
12μs
Voltage
45.75MHz
(or 58.75MHz)
2.5V
Frequency
(3) H VCO adjustment
Before measurement of M61203CFP, H VCO must be adjusted by the following procedure.
(a) Set the frequency at pin 7 (H OUT) to about 15.734kHz by adjusting I
(10H D3-D5).
2
C bus data of H VCO control
12
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