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Silicore
VIDEO IF PROCESSOR FOR B/W TV
GENERAL DESCRIPTION
The CD1366CP is a silicon monolithic integrated circuit designed for VIF section in B/W television receivers. This IC has functions
CD1366CP
including video IF amplifier, video low-level detector, RF AGC, IF AGC and no ise ch ancellor. This IC is encapsulated in 14 pin dual in-line package with heat tab.
FEATURES
High input sensitivity; TYP. 30dB. It can be used bo th of keyed type AGC and peak type AGC. It can be operated with the power supply voltage above 7V. Since the video detector has wide bandwid th, it's suitable for the sound carrier frequency of 4.5, 5.5, 6.0, 6.5 MHz. As input is differential mode, it can be used with SAW filter. All function s for VIF stage are provided by th is sing le ch ip IC and this IC will realize reduction of assembly cost as well as reduction of nu mb er of external components.
BLOCK DIGRAM
5 6 4 2 12 7 Vcc=12V 3
PIN CONNECTION
TUN IN RFAGC
NOISE CANCEL VIDEO AMP
1 2 3 4 5 6 7 TAB GND
14 13 12
TUN GND REG NF NF IN IF IN IF
OUT VF FIL RFAGC
RF AGC
IF AGC
TAB
IF AMPLIFIER LOW LEVER DETECTOR
CD1366CP
11 10 9 8
ADJ RFAGC OUTRFAGC Vcc
8
9
10
11
1
14
13
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PIN DESCRIPTION
Pin 1 2 3 4 5 6 7 Description Detector Co il Keying Pulse Input Video Output AGC Ti me Const. RF AGC A DJ. VR. Tuner AGC Output Supply Voltage (1) Symbol TUN INIFAGC OUTVF FILIFAGC Pin 8 9 10 11 Description VIF Input VIF Input Capacitor Capacitor Supply Vo ltage (2) Ground Detector Co il
CD1366CP
Symbol INIF INIF NF NF REG GND TUN
ADJRFAG C 12 OUTRFAG C 13 Vcc 14
ABSOLUTE MAXIMUM RATINGS (Ta=25C)
Characteristics Supply Voltage Pin 7 Input Signal Vo ltage Power Dissipation Operating Te mp erature Storage Temp erature Symbol V7 V8 V9 Pd Topt Tstg Value 15 3 875(Ta=75C) Free Air -20~75 -40~125 Unit V Vpp mW C C
ELECTRICAL CHARACTERISTICS
(Vcc=12V, Ta=25A 3C, f=58.75MHz, fM=15.75kHz) Symbol Icc Vi(sens) Vi(max.) Vo Vo S/N V6 H V6 L D.G. D.P. BW Rin Cin SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn Test Condition I7+I1 2 , RA=1 5 0 Mod=80%, Vo =1.4Vpp MOD=80%, -1dB Poin t Mod=80%, Vi=3 mVrms No Signal V5 =0V V5 =7V Stair Step fM=3.58MHz Stair Step fM=3.58MHz -3dB Poin t 5.5 1.5 3.3 100 1.0 3.3 8 1 .4 3 .8 50 9 0 11 0.5 10 10 1.7 4.3 Min. Typ. Max. Unit 40 50 30 60 35 mA dB dB Vpp V dB V V % deg MHz k pF
2/5
Characteristic Total Supply Cu rren t Input Sensitivity Maximu m Input Voltage Video Output Vo ltage Video Output DC Voltage Signal To Noise Ratio RF AGC Voltage (High) RF AGC Voltage (Low) Differential Gain Differential Phase Video Detector Band Width Input Resistance Input Capacitance
MOD=80%~0% Vi=3mVr ms 40
CHMC
Silicore
TEST CIRCUIT
0.22uF 470K 0.01uF MGC 10K VR S1 2 47uF 1 Vcc=12V S3 2 A 0.01uF 47uF 100 1K V
CD1366CP
0.01uF
V 1
6.8K 1
0.01uF 150
2 S2
1K 1
2
56
4
2
12
7
3
8 0.01uF 0.01uF
9
10 0.01uF
11 0.01uF
1 680
14
13
V
50
DET COIL
TEST CIRCUIT SWITCH SITUATION TABLE
CHARACT ERISTICS Icc VIS VIM VOVF (pp) Vo S/N V6H S1 1 1 1 1 1 2 1 S2 2 2 2 2 2 2 1 S3 2 1 1 1 1 1 1 CHARACT ERISTICS V6 L DG DP BWv RI CI S1 1 1 1 1 1 1 S2 2 2 2 2 2 2 S3 1 1 1 1 1 1
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APPLICATION CIRCUIT
0.22uF 470K 0.01uF
CD1366CP
KEYING PULSE RFAGC 0.01uF 6.8K 47uF RFAGC ADJ 10K 1K Vcc=12V 0.01uF 150 47uF SIF OUTPUT VIDEO OUT 6.5MHz TRAP 7 3
0.01uF 5 6 4 2 12
8 0.01uF
9 10 0.01uF
11 0.01uF
1
14 13 680~3K
SAWF 38MHz
38MHz DET COIL
PIF IN
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CHARACTERISTICS CURVES
CD1366CP
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