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IF Amplifier. D7678 Datasheet

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IF Amplifier. D7678 Datasheet






D7678 Amplifier. Datasheet pdf. Equivalent




D7678 Amplifier. Datasheet pdf. Equivalent





Part

D7678

Description

Video and Sound IF Amplifier



Feature


Silicore VIDEO AND SOUND IF AMPLIFIER FO R COLOR AND MONOCHROME TV RECEIVERS CHM C FUNCTION P I F S TA G E z z z z z Thr ee Controlled IF Amplifier stages Vi d e o D e m o d u l a t o r C o n t r o l l e d b y P i c t u r e D7678 Carrie r Black Noise and White Noise Inverter Peak AGC DC Amplifier for RF AGC Output S I F S TA G E z z Three Controlled I F Amplifier Stages.
Manufacture

Shaoxing

Datasheet
Download D7678 Datasheet


Shaoxing D7678

D7678; Quadrature Detector Outline Drawing F E AT U R E P I F S TA G E z z z z z z z H i g h G a i n , Wi d e B a n d I F A m p l i f i e r : 5 0 d B ( Ty p . ) a t 5 8 M H z G a i n R e d u c t i o n w i t h E x c e l l e n t St a b i l i t y : 5 5 d B ( Ty p . ) a t 5 8 M H z E x c e l l e n t D G / D P C h a r a c t e r i s t i c s : D G 7 % ( Ty p . ) , D P 3 . 5 d e g.


Shaoxing D7678

. ( Ty p . ) Excellent S/N Characterist ics Due to Delayed 3 Stage AGC Action. Fast AGC Action Due to Noise Inverter a nd Peak AGC. S w i t c h O f f t h e Vi d e o p a r t w i t h V T R S w i t c h . Dual Differential AFT Output. S I F S TA G E z z z Excellent Limiter Char acteristics. Excellent AM Rejection. 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.


Shaoxing D7678

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 TECHNOLOG Y CO.,LTD www. Silicore. com. cn 1/13 CHMC Silicore PIN CONNECTION D7678 I F IN 1 FIL 2 RFAGC CON 3 RFAGC OUT 4 SI F IN 5 SIF TA 6 OUT AF 7 IF TA 8 9 IF TA 10 SIF TA 11 Vcc 12 VF OUT 13 GND 14 AGC FIL 15 FIL 16 IF IN BLOCK DIAGRAM 11 5 6 BIAS CIRCUIT LIMITER 15 16 1 2 1nd IF 2nd IF 3nd.

Part

D7678

Description

Video and Sound IF Amplifier



Feature


Silicore VIDEO AND SOUND IF AMPLIFIER FO R COLOR AND MONOCHROME TV RECEIVERS CHM C FUNCTION P I F S TA G E z z z z z Thr ee Controlled IF Amplifier stages Vi d e o D e m o d u l a t o r C o n t r o l l e d b y P i c t u r e D7678 Carrie r Black Noise and White Noise Inverter Peak AGC DC Amplifier for RF AGC Output S I F S TA G E z z Three Controlled I F Amplifier Stages.
Manufacture

Shaoxing

Datasheet
Download D7678 Datasheet




 D7678
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




 D7678
Silicore
PIN CONNECTION
IF IN 1
FIL 2
RFAGC CON 3
RFAGC OUT 4
SIF IN 5
SIF TA 6
OUT AF 7
IF TA 8
BLOCK DIAGRAM
11 5
9 IF TA
10 SIF TA
11 Vcc
12 VF OUT
13 GND
14 AGC FIL
15 FIL
16 IF IN
6
D7678
BIAS
CIRCUIT
15
16 1nd 2nd 3nd
1 IF IF IF
2
LIMITER
LIMITER
AGC2
4
AGC3
AGC1
3 14
SOUND
DET
7
10
9
VIDEO AMP 8
NOISE
INVERTER
12
13
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
2/13




 D7678
Silicore
D7678
MAXIMUM RATINGS (Ta=25 )
CHARACTERISTIC
S u p p l y Vo l t a g e
(Pin 11)
O p e n L o o p Vo l t a g e
(Pin 4)
Video DC Output Current (Pin 12)
Power Dissipation
(note)
Ambient Temperature
Storage Temperature
SYMBOL
Vcc
V4
I12
PD
Ta
Ts t g
R AT I N G
15
15
6
1.4
-20~65
-55~150
UNIT
V
V
mA
W
ELECTRICAL CHARACTERISTICS
PI F S TA G E ( Ta = 2 5 , Vc c = 1 2 V,f p = 5 8 . 7 5 M H z, f s = 5 4 . 2 5 M H z)
CHARACTERISTIC
Recommended
S u p p l y Vo l t a g e
Supply Current
VIDEO DC Output
Vo l t a g e
Te r m i n a l Vo l t a g e 5
SYM-
BOL
Vcc
(V11)
Icc
(I11)
TEST
CIRCUIT
-
1
V12 1
V5 1
Te r m i n a l Vo l t a g e 7 V 7
RF AGC Residual
O u t p u t Vo l t a g e
RF AGC Leak
Current
Video Sensitivity
AGC Range
Sync Tip Level
Vo l t a g e
Maximum IF Input
Vo l t a g e
White Noise
Threshold
White Noise Clamp
Level
Lack Noise
Threshold
V4
S AT
I4
LEAK
Vi
Pin1-16
A
(IF)
VSYNC
(V12)
VIN MAX
PIF
Vw TH
(V12)
Vw CL
(V12)
VB TH
(V12)
1
1
1
2
2
2
2
2
2
2
TEST
CONDITION
-
S1:ON, S3:2,
S5:2, S4:1
S1:OFF, S3:2,
S5:2, S4:1
S1:ON, S3:2,
S5:2, S4:1
S1:ON, S3:2,
S5:2, S4:1
S1:OFF, S3:2,
S5:2, S4:1
S1:OFF, S3:2,
S5:2, S4:1
(Note 1)
(Note 2)
(Note 3)
(Note 4)
(Note 5)
(Note 5)
(Note5)
MIN.
10.8
35
5.2
3.5
4.8
-
-
60
60
2.3
100
5.8
3.7
1.4
T Y P. M A X . U N I T
12.0 13.2 V
50 65 mA
5.5 5.8
V
4.4 5.3
V
6.0 7.2
V
- 0.5 V
-1
A
150 250 Vrms
64 -
dB
2.5 2.7
V
120 - mVrms
6.2 6.6
V
4.1 4.5
V
1.6 1.8
V
SHAOXING SILICORE TECHNOLOGY CO.,LTD
www. Silicore. com. cn
CHMC
3/13






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