Mitsubishi M52760SP Datasheet
MITSUBISHI ICs (TV)
M52760SP
PLL-SPLIT VIF/SIF IC
DESCRIPTION
The M52760SP is IF signal-processing IC for VCRs and TVs. It
enable the PLL detection system despite size as small as that of
conventional quasi-synchronous VIF/SIF detector, IF/RF AGC, SIF
limiter, FM detector and EQ AMP.
FEATURES
Video detection output is 2V
•
The package is a 20-pin shrink-DIP, suitable for space saving.
•
The video detector uses PLL for full synchronous detection
•
circuit. It produces excellent characteristics of DG, DP, 920kHz
beat, and cross color.
•
Dynamic AGC realizes high speed response with only single
filter.
•
Video IF and sound IF signal processings are separated from
each other. VCO output is used to obtain intercarrier.
This PLL-SPLIT method provide good sound sensitivity and
reduces buzz.
•
As AFT output voltage uses the APC output voltage, VCO coil is
not used.
Audio FM demodulation uses PLL system, so it has wide
•
frequency range with no external parts and no adjustment.
QIF AMP has a fixed gain, and good characteristic for NICAM.
•
. It has built-in EQ AMP.
P-P
APPLICATION
TV sets, VCR tuners
PIN CONFIGURATION (TOP VIEW)
RF AGC DELAY EQ F/B
AFT OUT
RF AGC OUT
QIF DET IN
IF AGC FILTER
AUDIO OUT
VIF IN
VIF IN
GND
NFB
1
2
3
4
Outline 20P4B
20
19
18
M52760SP
17
165
156
147
138
129
1110
APC FILTER
VIDEO OUT
Vreg. OUT
VCO COIL
VCO COIL
Vcc
QIF OUT
AFT SW/NPSW
LIMITER IN
RECOMMENDED OPERATING CONDITION
In case of Vcc and Vreg. out short
Supply voltage range....................................................4.75 to 5.25V
Recommended supply voltage...................................................5.0V
In case of Vreg. out open
Supply voltage range......................................................8.5 to 12.5V
BLOCK DIAGRAM
18
EQ
AMP
Vreg. OUT LIMITER INAPC FILTER
17 16
VCO COIL Vcc
VIDEO
DET
VIF AMP
EQ F/B AFT SW/NPSW
20
VIDEO OUT
19
AFT
VCO COIL
VCO
APC
RF AGC
QIF OUT
15
14 12
Vcc REG
13
SplitInter
QIF DET
QIF AMP
IF AGC
11
LIM AMP
FM DET
AF AMP
1
RF AGC DELAY
1
2
AFT OUT AUDIO OUTIF AGC FILTER
3
RF AGC OUT
45
6 8
QIF DET IN
GNDVIF IN
97
NFBVIF IN
10
°
°
±
−
−
−
− dB µ
−
−
−
−
−
−
−
−
−
−
−
µ
MITSUBISHI ICs (TV)
M52760SP
PLL-SPLIT VIF/SIF IC
ABSOLUTE MAXIMUM RATINGS
(Ta=25 ° C, surge protection capacitance 200pF resistance 0 Ω , unless otherwise noted)
Symbol Parameter Ratings Unit
V
CC
Vreg
OUT
d
P
T
opr
T
stg
Surge Surge voltage resistance
AMBIENT OPERATING CONDITION
IN CASE OF V
Vreg. OUT SHORT
IN CASE OF Vreg.
OUT OPEN
ELECTRICAL CHARACTERISTICS
Supply voltage1 13.2 V
.
Supply voltage Vreg. OUT 6 V
Power dissipation 1524 mW
Operating temperature -20 to +75
Storage temperature -40 to +150
200 V
(Ta=25 ° C, unless otherwise noted)
Supply voltage Supply voltage range
AND
CC
4.75 to 5.25V 5.0V
Recommended supply
voltage
8.5 to 12.5V
(V
=5V , Ta=25 ° C, unless otherwise noted)
CC
C
C
Measurement condition
Symbol Parameter
Test
circuit
Test
point
Input
point
Input
SG
External
power supply
V12
switches set to
position 1 unless
otherwise indicatedV7 V8
Limits
Min. Typ. Max.
VIF section
CC1
I
CC2
I
CC2
V
V18 Video output DC voltage 1 TP18A −−−
o det
V
Video S/N
BW Video band width 1 TP18A VIF IN SG3 −
Circuit current1
CC
V
=5V
Circuit current2
V
=12V
CC
1 A VIF IN SG1 −− 5
1 A VIF IN SG1 −− 5
Vreg voltage 1 TP17 −−−−
0
Video output voltage 1 TP18A VIF IN SG1 −−−
Video S/N 1 TP18A VIF IN SG2 −−− SW18=2 51 56
Vari
able
CC
=5V
V
SW17=1, SW14=2
CC
V
=12.5V
SW14=SW17=2
CC
V
=12.5V
5
SW7=2
−
SW8=2 3.2 3.5 3.8 V
33 46 59 mA
33 46 59 mA
4.60 4.95 5.30 V
1.8 2.1 2.4 V
SW8=2
7.0 9.0
VIN MIN Input sensitivity 1 TP18A VIF IN SG4 −−− − 48 52 dB µ
VIN MAX
GR AGC control range input
V8 IF AGC voltage 1 TP8 VIF IN SG6 −−−
V8H
V8L
V3H
V3L
V3
CL-U Capture range U 1 TP18A VIF IN SG9 −−−
CL-L Capture range L 1 TP18A VIF IN SG9 −−−
CL-T Capture range T 1
VCO ∆ f VCO SW ON Drift 1 TP18A −−−
Maximum allowable
input
Maximum IF AGC
voltage
Minimum IF AGC
voltage
Maximum RF AGC
voltage
Minimum RF AGC
voltage
RF AGC Operation
voltage
1 TP18A VIF IN SG5 −−−
−−−−
1 TP8
−−
−−−
−−−
1 TP8 VIF IN SG7 −−−
1 TP3 VIF IN SG6 −−−
1 TP3 VIF IN SG7 −−−
1 TP3 VIF IN SG8 −−−
−
− − −−−
0
− ± 0 +20 +40 kHz
101 105
50 57
2.9 3.2 3.5 V
4.0 4.4
2.2 2.4 2.6 V
4.2 4.7
CC
=9V) 8.0 8.9
CC
(V
=12V) 11.0 11.9
− 0.1 0.5
CC
=9V)
CC
(V
=12V)
89 92 95 dB µ
1.0 1.7
1.8 2.4
3.1 4.1
0.2 0.7
0.2 0.7
AFT sensitivity 1 TP2 VIF IN SG10 −− 3.3 20 30 60 mV/kHz
Unit
P-P
dB
MHz
dB
V
V(V
V(V
MHz
MHz
MHz
2
−
−
−
−
−
−
MITSUBISHI ICs (TV)
M52760SP
PLL-SPLIT VIF/SIF IC
−
−
−
− k Ω
−
−
ELECTRICAL CHARACTERISTICS
(cont.)
Measurement condition
Symbol Parameter
Test
circuit
Test
point
Input
point
Input
SG
External
power supply
V12
switches set to
position 1 unless
otherwise indicatedV7 V8
Limits
Min. Typ. Max.
Unit
3.85 4.15
V2H AFT maximum voltage 1 TP2 VIF IN SG10 −− 3.3
=9V) 7.7 8.1
CC
(V
=12V) 10.7 11.1
CC
V(V
0.7 1.2
V2L AFT minimum voltage 1 TP2 VIF IN SG10 −− 3.3
=9V)
CC
CC
(V
=12V)
0.7 1.2
0.7 1.2
V(V
2.2 2.5 2.8
1.65
AFT def1 AFT Defeat 1 1 TP2 VIF IN SG10 −−
CC
=9V) 4.1 4.5 4.9
CC
(V
=12V) 5.5 6.0 6.5
V(V
2.2 2.5 2.8
AFT def2 AFT Defeat 2 1 TP2 VIF IN SG10 −− 4.6
Vari
IM Inter modulation 1 TP18A VIF IN SG11
−
able
CC
=9V) 4.1 4.5 4.9
CC
(V
=12V) 5.5 6.0 6.5
SW8=2
35 40
V(V
dB
DG Differential gain 1 TP18A VIF IN SG12 −−− − 2 5 %
DP Differential phase 1 TP18A VIF IN SG12 −−− − 2 5 deg
V13
SYNC
RINV VIF input resister 2 TP4
CINV VIF input capacitance 2 TP4
Sync. tip level 1 TP18A VIF IN SG2 −−−
0.85 1.15 1.45 V
1.2
5
pF
SIF section
QIF1 QIF output 1 1 TP13
QIF2 QIF output 2 1 TP13
VIF IN
QIF IN
VIF IN
QIF IN
SG2
SG13
SG2
SG14
−−−
−−−
108 114 120 dB µ
94 100 106 dB µ
Vos SIF detection output 1 TP13 VIF IN SG15 0 − 5 SW7=2 94 100 106 dBµ
V1 AF output DC voltage 1 TP10 SIF IN SG19 −−5 1.6 2.2 2.8 V
VoAF1 AF output (4.5MHz) 1 TP10 SIF IN SG16 −−5 320 560 800 mVrms
VoAF2 AF output (5.5MHz) 1 TP10 SIF IN SG20 −−0 255 450 645 mVrms
THD AF1
THD AF2
LIM1
LIM2
AF output distortion
(4.5MHz)
AF output distortion
(5.5MHz)
Limiting sensitivity
(4.5MHz)
Limiting sensitivity
(5.5MHz)
1 TP10 SIF IN SG16 −−5 − 0.2 0.9 %
1 TP10 SIF IN SG20 −−0 − 0.2 0.9 %
1 TP10 SIF IN SG17 −−5 − 42 55 dBµ
1 TP10 SIF IN SG21 −−0 − 42 55 dBµ
AMR1 AM rejection (4.5MHz) 1 TP10 SIF IN SG18 −−5 55 62 − dB
AMR2 AM rejection (5.5MHz) 1 TP10 SIF IN SG22 −−0 55 64 − dB
AF S/N 1 AF S/N (4.5MHz) 1 TP10 SIF IN SG19 −−5 55 62 − dB
AF S/N 2 AF S/N (5.5MHz) 1 TP10 SIF IN SG23 −−0 55 64 − dB
RINS SIF input resistance 2 TP7 − 1.5 − kΩ
CINS SIF input capacitance 2 TP7 − 4 − pF
Control section
QIF QIF control 1 TP7 −−
C
Vari
able
−−
SW7=2
− 0.7 1.0 V
PIN12 VOL TAGE CONTROL
Pin12 voltage (V) AF AFT
0 to 2.3
2.7 to 5.0
3
0 to 0.6
1.0 to 2.3 DEFEAT
2.7 to 4.0
4.4 to 5.0 DEFEAT
PAL
NTSC
NORMAL
NORMAL
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