MITSUBISHI ICs (TV)
M52770ASP
NTSC/PAL TV SIGNAL PROCESSOR
DESCRIPTION
The M52770ASP is a single chip CTV processor which has
PIN CONFIGURATION (TOP VIEW)
VIF/SIF, luminance, chrominance, mono sound, OSD display,
RGB interface, and deflection.
VIF GND
1
64
VIF VIDEO OUT
And it is possible to control each parameters by I2C bus. A
baseband 1H delay line is built-in, and conjunction with SECAM
decoder M52325AP simplifies multi system CTV chassis.
2
3
AFT OUT
SIF LIMITER IN
RF AGC OUT
QIF OUT
63 VIF APC FILTER1
62
61
VIF VCO (2)
VIF VCO (1)
4
5
60 FM DIRECT OUT
59 EXT AUDIO IN
FEATURES
• Built-in 1H Delay Line using Bi-CMOS technology
6
IF AGC FILTER
QIF IN
7
58
57
56
55
54
AUDIO BYPASS
AUDIO OUT
VIF APC FILTER2
-(R-Y) IN
• Multistandard PLL demodulator for IF
• Alignment - free sound demodulator
• Flexible source selection with internal CVBS and external CVBS
or Y/C input signal
8
SPOT KILLER
VIF IN(1)
9
10
VIF IN(2)
-(B-Y) IN
VIF VCC 11
• Audio switch integrated
12
13
53 Hi VCC
FAST BLK
SCL
• Integrated chroma trap and bandpass filters with auto-calibration
• Luminance delay line integrated
52 SECAM REF.
51 VIDEO CLAMP
• RGB control circuit with cut-off and drive
• Linear RGB inputs and fast blanking
• Horizontal synchronaization with two control loops and alignment-
free H-oscillator
SCP OUT 14
H OUT 15
VSS 16
50
49
48
47
46
45
44
43
42
X-TAL 4.43
SYNC SEP IN(2)
SYNC SEP IN(1)
Y SW OUT
SDA
VDD DECOUPLING
AFC 1 FILTER
H OSC
17
18
19
20
21
22
23
24
• Vertical count-down circuit
• Vertical saw tooth generator integrated
• I2C Bus control of various functions
VIDEO/CHROMA GND
TV IN
•
Easy interfacing with SECAM decoder for multistandard
applications
CHROMA APC FILTER
MUTE FILTER
R OUT
EXT IN
• Small amount of peripheral components
G OUT
KILLER FILTER
B OUT
41 X-TAL 3.58
APPLICATION
NTSC/PAL TELEVISION
CONTRAST CONTROL
DEFLECTION GND 25
40
39
26
27
28
R IN
V OUT(RAMP/PULSE)
START-UP VCC
B IN
QUICK REFERENCE DATA
• Supply voltage pin11(VIF), pin31(video/chroma)..................5.0V
38 BLK HOLD
37 G IN
pin27(Start-up), pin53(Output Stage)........... 9.0V
• Supply current pin11 and pin31....................................... 107mA
pin27 and pin53..........................................56mA
X-RAY IN
36
V RAMP FEEDBACK 29
V RAMP C
30
VIDEO IN
35
VIDEO/CHROMA VCC
31
34
33
ID FILTER
• Input signals
VIF input sensitivity...................................47dBµ
SIF limiting sensitivity............................... 40dBµ
External audio input....................................1VP-P
External CVBS/Y inputs............................. 1VP-P
External chroma input (burst amplitude)..0.3VP-P
External RGB inputs................................ 0.7VP-P
Fast blanking Internal TV.................. 0 to 0.8V
External RGB............1.2 to 3.3V
AFC 2 FILTER 32
CHROMA IN
Outline 64P4B
• Output signals VIF CVBS det out.....................................2.2VP-P
RF AGC output range.........................0.3 to
8.7V
Harf Tone.................... 3.7 to 5V
Video switch out.......................................2.1VP-P
-(R-Y) input.............................................1.05VP-
P
RGB output
Pedestal voltage................. 2.2V
amplitude........................ 4.2VP-P
-(B-Y) input.............................................1.33VP-P
Horizontal output amplitude..................... 4.0VP-P
Vertical ramp amplitude........................... 2.0VP-P