MC44302ADW Просмотр технического описания (PDF) - Motorola => Freescale
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производитель
MC44302ADW Datasheet PDF : 28 Pages
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MC44302A
Figure 19. Representative Block Diagram
VCC
IF Input
8
9
VCC
RF AGC
13
Output
VCC
15
RF
AGC
Delay
14
AGC
Filter
VCC
25
IF
Amp
AGC
Control
Circuit
Gated
AGC
Peak
AGC
AGC
Discharge
VCC
AFT
Switch
12
AFT
Output
PLL Filter
VCO
(Main VCO Loop) Coil
11
19 20 21
VCC
Sound
Quadrature
Coil (FM)
Sound
AFT Filter/
Peak
White Filter
Sound
De–
Emphasis
(FM)
7
4
26
Sound Inputs
(FM)
(AM)
2
23
AFT
AFT
Clamp
Amp
Limiter
Phase
Detector
90°
Limiter
VCO
Sweep
VCO
Freq
Doubler
0°
Phase
Shift 90°
Video 1
Det
90°
Sound
Q Det
FM
AFT
FM IF & Detector
AM IF &
Detector
Switch
1
Switch
2
Switch
3
Switch
4
Control
Logic
Vol
Control
Audio
Switch
24
Audio Output
(Constant)
27 Audio Output
(Variable)
VCC
Volume
1
Control
Acquisition
Circuit
Sync
Horiz PLL
Sep
OSC
White
Spot Inv
Mode
Switch
Video Invert
Switch
Audio Input/
Audio–Video
Switch
3
17
16
Flyback/
Video Input
Horizontal PLL Filter
18
28
10
Lock Detector/
Filter
(Acquisition Circuit)
Intercarrier
Sound Output
5
6
22
(Neg)
(Pos)
Gnd
Video Outputs
From
External
Audio
Source
VCC PAL 1
PAL 2
SECAM
Video
Mode
Switch
Audio 1
Audio 2
NTSC
Video 1 Video 2
This device contains 2,641 active transistors.
8
MOTOROLA ANALOG IC DEVICE DATA
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