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PDF M52766FP Data sheet ( Hoja de datos )
| Número de pieza | M52766FP | |
| Descripción | PLL SPLIT VIF / SIF | |
| Fabricantes | Mitsubishi | |
| Logotipo |  |
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MITSUBISHI ICs (TV)
M52766FP
PLL SPLIT VIF / SIF
DESCRIPTION
The M52766FP is a semiconducttor IC with PLL system of PIN CONFIGURATION (TOP VIEW)
VIF/ SIF.
The circuit includes video UF amplifier,PLL video
detector,IFAGC,RFAGC,VCO,AFT,LOCK
DET,EQ,REG,QIFamplifier,QIF detector,QIF AGC,LIM,FM
detector function.
The circuit realize no abjustment SIF,nothing coil AFT.
FEATURES
EQ OUT 1
VIDEOINV.OUT
andNT/PALSW 2
APC FILTER 3
EQ IN 4
VCC 5
VCO COIL 6
VCO COIL 7
24 EQF/B
23 IF AGC FILTER
22 RF AGC DELAY
21 VIF IN
20 VIF IN
19 GND
18 AFT OUT
Dynamic AGC realizes high speed AGC with double filtre. IF AGC FILTER 8
The M52766FP can correspond to 2tipe sound career,from
VIDEO OUT 9
change on standard board,with sound LIM input have
QIF OUT 10
2pins (12,13pin).
GND 11
Sound FM detection can correspond to wide SIF signal,with LIMITER IN (NTSC) 12
17 RF AGC OUT
16 QIF DET IN
15 NFB
14 AUDIO OUT
13 LIMITER IN(PAL)
PLL system and no abjustment.
The N52766FP correspond to PLL split system and
intercareer system.
AFT coil is necessary.
APPLICATION
TV sets, VTR tuners.
AFT mute is not used.
The M52766FP optimum for VTR and color TV,with video RECOMMEND OPERATING CONDITION
output-pin,because this IC has a built in EQ amplifier.
VCC correspond to 5V,be main strem of tuner in future.
Supply voltage range • • • • 5.0 ± 0.25V
Flat package is 24-pin SSOP of mini flat (0.8mm pich ),
Recommended supply voltage • • • 5.0V
suitable for space saving.
BLOCK DIAGRAM
RF AGC
Delay
Vcc
IF IN
Vcc
AFT
OUT
RF AGC
OUT
AF OUT
24 23
22
IF AGC
EQ
AMP
AFT
1
EQ OUT
2
3
21 20 19 18 17 16 15 14 13
VIF AMP
APC
VIDEO
DET
VCO
RF AGC
QIF AMP
AF AMP
FM DET
LIM AMP
QIF DET
45 6
+ Vcc
78
9 10 11 12
4.5MHz Trap
VIDEO OUT
4.5MHz Filter
( 1 / 15 )
1 page  
MITSUBISHI ICs (TV)
M52766FP
PLL SPLIT VIF / SIF
Electrical Characteristics (Vcc=5V,Ta=25°C unless otherwise noted)
SIF Section
No. Parameter
Symbol Test Test
Circuit Point
Input
Point
Input
SG
Measurement
switches set to position 1
unless otherwise noted
Limits
Unit Note
MIN TYP MAX
QIF Output
34 Voltage 1
QIF1
1 TP10 VIF IN SG2
QIF IN SG13
QIF Output
35 Voltage 2
QIF2
1 TP10 VIF IN SG2
QIF IN SG14
SIF Detection
36 Output
Vos 1 TP10 VIF SG15
IN
AF Output
37 DC Voltage
V1
1
SIF
TP14 IN SG19
38 AF Output
(4.5MHz)
VoAF
1
1 TP14 SIF SG16
IN
39 AF Output
(5.5MHz)
AFOutput Distortion
40 (4.5MHz)
VoAF
2
THD
AF 1
1 TP14 SIF SG21
IN
1 TP14 SIF SG16
IN
AFOutput Distortion THD
41 (5.5MHz)
AF 2
1 TP14 SIF SG21
IN
Limiting Sensitivity
42 (4.5MHz)
LIM
1
1 TP14 SIF SG17
IN
43
Limiting Sensitivity
(5.5MHz)
LIM
2
1
TP14
SIF
IN
SG22
AM Rejection
44 (4.5MHz)
AMR
1
SIF
1 TP14 IN SG18
AM Rejection
45 (5.5MHz)
AMR
2
1 TP14 SIF SG23
IN
AF
46 AF S/N (4.5MHz) S/N 1
1
TP14 SIF SG19
IN
AF
47 AF S/N (5.5MHz) S/N 2
1
TP14 SIF SG24
IN
48
SIF Input
Resistor
RINS 2 TP16
49 SIF Input
Capacitance
CINS 2 TP16
SW16=2
V16=0V
SW13=2
SW2=2
SW12=2
SW13=2
SW2=2
SW12=2
SW13=2
SW2=2
SW12=2
SW13=2
SW2=2
SW12=2
SW13=2
SW2=2
SW12=2
104 110 116 dBµ
94 100 106 dBµ
94 100 106 dBµ
1.5 2.1 2.7 V
571 800 1142 mVrms
521 730 1043 mVrms
– 0.8 1.2 %
– 0.6 1.0 %
– 42 55 dBµ 12
– 42 55 dBµ 12
53 62 – dB 13
54 64 – dB 13
53 62 – dB 14
54 64 – dB 14
– 0.7 – kΩ
– 4 – pF
( 5 / 15 )
5 Page 
MITSUBISHI ICs (TV)
M52766FP
PLL SPLIT VIF / SIF
10. AFT sensitivity µ, Maximum AFT voltage V18H , Minimum AFT voltage V18L
1. Input SG10 into VIF IN , and set the frequency of SG10 so that the voltage
of AFT output TP18 is 3[V] . This frequency is named f(3).
2. Set the frequency of SG10 so that the AFT output voltage is 2[V].
This frequency is named f(2)
3. IN the graph, maximum and minimum DC voltage are V18H and V18L,
respectively.
µ = 1000 [mV]
f(2) - f(3) [kHz]
TP2
Voltage
3V
[mV/kHz]
V18H
2V
V18L
f(3) f(2) f(MHz)
11. Inter modulation: IM
1. Input SG11 into VIF IN, and measure video output TP9 with an oscilloscope.
2. Adjust AGC filter voltage V23 so that the minimum DC level of the output
waveform is 1.0V.
3. At this time, measure TP9 with a spectrum analyzer .
The inter modulation is defined as a difference between 0.92MHz and
3.58 MHz frequency components.
( 11 / 15 )
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet M52766FP.PDF ] | |
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