Mitsubishi M52770SP Datasheet
MITSUBISHI ICs (TV)
M52770SP
NTSC/PAL TV SIGNAL PROCESSOR
DESCRIPTION
The M52770SP is a single chip CTV processor which has VIF/SIF,
luminance, chrominance, mono sound, OSD display, RGB
interface, and deflection.
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.
FEATURES
• Built-in 1H Delay Line using Bi-CMOS technology
• Multistandard PLL demodulator for IF
• Alignment - free sound demodulator
• Flexible source selection with internal CVBS and external CVBS
or Y/C input signal
• Audio switch integrated
• Integrated chroma trap and bandpass filters with auto-calibration
• Luminance delay line integrated
• 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
• Vertical count-down circuit
• Vertical saw tooth generator integrated
• I2C Bus control of various functions
• Easy interfacing with SECAM decoder for multistandard
applications
• Small amount of peripheral components
APPLICATION
NTSC/PAL TELEVISION
QUICK REFERENCE DATA
• Supply voltage pin11(VIF), pin31(video/chroma)..................5.0V
pin27(Start-up), pin53(Output Stage)...........9.0V
• Supply current pin11 and pin31....................................... 107mA
pin27 and pin53..........................................56mA
• 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
Harf Tone.................... 3.7 to 5V
-(R-Y) input.............................................1.05VP-P
-(B-Y) input.............................................1.33VP-P
PIN CONFIGURATION (TOP VIEW)
VIF GND
AFT OUT
SIF LIMITER IN
RF AGC OUT
QIF OUT
IF AGC FILTER
SPOT KILLER
VIF IN(1)
VIF IN(2)
VIF V
FAST BLK
SCP OUT
H OUT
V
DD DECOUPLING
AFC 1 FILTER
H OSC
MUTE FILTER
R OUT
G OUT
B OUT
DEFLECTION GND
V OUT(RAMP/PULSE)
START-UP VCC
V RAMP FEEDBACK
V RAMP C
VIDEO/CHROMA V
AFC 2 FILTER
QIF IN
CC
SCL
SS
V
SDA
B IN
CC
1
2
3
4
5
7
8
9
13
14
15 50
16 49
17 48
18 47
19
20
21
22 43
23
24
25
26
27
28
29
30
31
32
Outline 64P4B
• Output signals VIF CVBS det out.....................................2.2VP-P
RF AGC output range.........................0.3 to 8.7V
Video switch out.......................................2.1V P-P
RGB output Pedestal voltage.................2.2V
Horizontal output amplitude.....................4.0VP-P
Vertical ramp amplitude...........................2.0VP-P
64
VIF VIDEO OUT
63
VIF APC FILTER1
62
VIF VCO (2)
VIF VCO (1)
61
60
FM DIRECT OUT
596
EXT AUDIO IN
58
AUDIO BYPASS
AUDIO OUT
57
VIF APC FILTER2
56
-(R-Y) IN
5510
-(B-Y) IN
5411
5312
CC
Hi V
52
SECAM REF.
51
VIDEO CLAMP
M52770SP
X-TAL 4.43
SYNC SEP IN(2)
SYNC SEP IN(1)
Y SW OUT
VIDEO/CHROMA GND
46
45
TV IN
CHROMA APC FILTER
44
EXT IN
KILLER FILTER
42
41
X-TAL 3.58
CONTRAST CONTROL
40
R IN
39
BLK HOLD
38
37
G IN
X-RAY IN
36
VIDEO IN
35
34
ID FILTER
CHROMA IN
33
amplitude........................4.2VP-P
BLOCK DIAGRAM
MITSUBISHI ICs (TV)
M52770SP
NTSC/PAL TV SIGNAL PROCESSOR
EXT AUDIO IN
FM DIRECT OUT
AUDIO BYPASS
SPOT KILLER
VIF GND
VIF VCC
SIF LIMITER IN
Hi VCC
VIF APC FILTER2
VIF VIDEO OUT
QIF OUT
QIF IN
VIF APC FILTER1
VIF VCO (2)
VIF VCO (1)
AUDIO OUT
571713
AF AMP
5864 5975
AF AMP
LIMITER
8
LIMITER
11 1
5363 60
QIF AMP
VCO
61 62 56 3
SCL
SDA
AUDIO MUTE SW
I/F
BUS
4.5/6.0
SYSTEM auto
SYSTEM SET
SYSTEM
DECODE
VCO ADJ
4
PI
+
4
PI
-
FAST BLK
B IN
R IN
39
12
28
CUT OFF
R EXT
INPUT
B EXT
INPUT
DRIVE
VICE
SER-
BLUE
BACK
ID OUT
DET
APC
VIDEO
R OUT
22
R G B
G EXT
INPUT
R B
BRIGHT
COLOR
ID
SYSTEM
DET
LOCK
DET
B OUT
24
HV
BLK
CLAMP
AMP
DRIVE
BRIGHT
RGB
MATRIX
CONTRAST
REF
FILTER
ADJ DET
G OUT
G IN
23
37
TRIG
V SYNC
SEP
SYNC
CONTRAST
START-UP VCC
V OUT(RAMP/PULSE)
SECAM REF.
26
52
27
REF
SECAN
V. RAMP
SERVICE SW
VERTICAL
COUNT DOWIN
50/60 OUT
EO
ELIMINATE
BGP
SW
PAL
CHROMA
DEMODULATOR
F/F
DET
KILLER
BPF
2ND AMP
CHROMA
V RAMP C
DEFLECTION GND
V RAMP FEEDBACK
25
29
30
DELECTION
GND
V. SIZE
H STOP
HORIZONTAL
COUNT DOWIN
32FH
AFC GAIN
GENE
TINT
CONT
PHASE
ID
DET
DET
ACC
(ACC)
1ST AMP
HPF
AFC 2 FILTER
32
AFC-2
VCO
AFC-1
1H DL
VCXO
APC DET
CHROMA
X-RAY IN
36
X-RAY IN
DET
MUTE
MUTE
VDD
decoupling
VSS
VIDEO CHROMA
H-PHASE
H OUT
153435
21
MUTE FILTER
OUT
H OSC
20
AFC 1 FILTER
SCP OUT
-(B-Y) IN
-(R-Y) IN
55 54 14 19
VDD DECOUPLING
V
SS
KILLER FILTER
X-TAL 3.58
41
X-TAL 4.43
VIDEO/CHROMA GND
GND
VIDEO/CHROMA VCC
31 46
VCC
CHROMA APC FILTER
44
ID FILTER
SYNC SEP IN(1)
4843 50 42 18
SYNC SEP IN(2)
49
CHROMA IN
33
EXT IN
IF AGC FILTER
TRAP
CHROMA
D.TRAP
F.TRAP
TV/EXT
VIDEO IN
45 16
TV IN
DL
CONTRAST
404751
DL
TONE
VIDEO
SHARPNESS
TIME
DELAY
Y SW OUT
FINE
K2
TRAP
SW
IF AGC
6
RF AGC
DELAY ADJ
4
RF AGC OUT
VIF
AMP
9
10
VIF IN(1)
VIF IN(2)
AFT
AFT OUT
DEFEAT
2
AFT OUT
MUTE
VIDEO
VODEO MUTE
38
BLK HOLD
CLAMP
VIDEO CLAMP
CONTRAST CONTROL
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