Mitsubishi M52771SP Datasheet
MITSUBISHI ICs (TV)
M52771SP
NTSC/PAL TV SIGNAL PROCESSOR
DESCRIPTION
The M52771SP 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 pin8(VIF), pin26(video/chroma)....................5.0V
pin22(Start-up), pin42(Output Stage)...........9.0V
• Supply current pin8 and pin26......................................... 107mA
pin22 and pin42..........................................56mA
• Input signals VIF input sensitivity...................................48dBµ
SIF limiting sensitivity............................... 43dBµ
External audio input.......................... 920mV rms
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 1.3V
External RGB............1.7 to 3.3V
BLK..............................3.7 to 5V
-(R-Y) input.............................................1.05VP-P
-(B-Y) input.............................................1.33VP-P
PIN CONFIGURATION (TOP VIEW)
52
VIDEO OUT
51
VIDEO APC FILTER1
50
VCO -2
49
VCO -1
48
FM DIRECT OUT
EXT AUDIO IN
47
AUDIO BYPASS
46
AUDIO OUT
45
-(R-Y) IN
44
-(B-Y) IN
43
Hi VCC(9V)
42
SECAM REF. / SELF ADJ.
41
X-TAL 4.43
40
SYNC SEP IN
39
38
Y SW OUT
VCD GND
37
TV CVBS IN / Y IN
36
CHROMA APC FILTER
35
34
EXT CVBS IN / C IN
33
KILLER FILTER
X-TAL 3.58
32
ACL IN/ABCL IN
31
R IN
30
IDENT FILTER
29
G IN
28
BLACK PEAK
27
SCL
H OUT
SDA
H OSC
R OUT
G OUT
B OUT
B IN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
QUTLINE 52P4B
VIF GND
AFT OUT
LIMITER IN
RF AGC OUT
IF AGC FILTER
VIF IN(1)
VIF IN(2)
VIF VCC(5V)
FAST BLK
SCP OUT
DEFLECTION/VSS GND
AFC 1 FILTER
AFC 2 FILTER
V RAMP/PULSE OUT
HVCC(9V)
V RAMP FEEDBACK
V -RAMP C
VCD VCC(5V)
• Output signals VIF CVBS det out.....................................2.2VP-P
RF AGC output range.........................0.3 to 8.7V
Video switch out.......................................2.1VP-P
RGB output Pedestal voltage.................2.2V
amplitude........................4.2VP-P
Horizontal output amplitude.....................4.0VP-P
Vertical ramp amplitude...........................2.0VP-P
BLOCK DIAGRAM
EXT AUDIO IN
FM DIRECT OUT
AUDIO BYPASS
MITSUBISHI ICs (TV)
M52771SP
NTSC/PAL TV SIGNAL PROCESSOR
H OUT
H OSC
VIF GND
VIF VCC
SIF LIMITER IN
Hi VCC
VIF VIDEO OUT
VIF APC FILTER1
VIF VCO (2)
VIF VCO (1)
IF AGC FILTER
AFC 1 FILTER
SCP OUT
-(B-Y) IN
-(R-Y) IN
VSS
X-TAL 3.58
X-TAL 4.43
VIDEO/CHROMA GND
VIDEO/CHROMA VCC
CHROMA APC FILTER
ID FILTER
KILLER FILTER
SYNC SEP IN(1)
SYNC SEP IN(2)
VIDEO IN
TV IN
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