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零件编号 | D7678 | ||
描述 | Video and Sound IF Amplifier for Clolr and Monochrome TV Receivers | ||
制造商 | Shaoxing | ||
LOGO | |||
1 Page
Silicore
VIDEO AND SOUND IF AMPLIFIER FOR COLOR
AND MONOCHROME TV RECEIVERS
CHMC D7678
FUNCTION
PIF STAGE
z Three Controlled IF Amplifier stages
z Video Demodulator Controlled by Picture
Carrier
z Black Noise and White Noise Inverter
z Peak AGC
z DC Amplifier for RF AGC Output
SIF STAGE
z Three Controlled IF Amplifier Stages
z Quadrature Detector
Outline Drawing
F E AT U R E
PIF STAGE
z High Gain, Wide Band IF Amplifier : 50dB(Typ.) at 58MHz
z Gain Reduction with Excellent Stability : 55dB(Typ.) at 58MHz
z Excellent DG/DP Characteristics : DG 7%(Typ.), DP 3.5deg.(Typ.)
z Excellent S/N Characteristics Due to Delayed 3 Stage AGC Action.
z Fast AGC Action Due to Noise Inverter and Peak AGC.
z Switch Off the Video part with VTR Switch.
z Dual Differential AFT Output.
SIF STAGE
z Excellent Limiter Characteristics.
z Excellent AM Rejection.
z L a rg e U n d i s t o r t e d A u d i o O u t p u t Vo l t a g e w i t h Q u a d r a t u r e D e t e c t o r.
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
1/13
Silicore
TEST CIRCUIT
1.DC TEST CIRCUIT
5.1K 3.3K
3.9K
12
SW4
1.6K
A
D7678
47uF 12V
16 15 14 13
12 11 10
9
SW1
123
4
5
67
8
C=0.01uF
2 1.6K
A2
SW5 1
100 SW3 1
15V or 12V
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
8/13
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页数 | 13 页 | ||
下载 | [ D7678.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
D7678 | Video and Sound IF Amplifier for Clolr and Monochrome TV Receivers | Shaoxing |
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