MITSUBISHI M52769FP

MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
DESCRIPTION
M52769FP is a semiconductor integrated circuit consisting of VIF/SIF signal processing
for CTVs and VCRs. M52769FP corresponds to FM radio and provide low cost and high
performance system with the coil-less AFT.
FEATURES
FM radio receiving is available without FM radio IC and external filter
Built-in FM radio carrier indicator
Coil-less AFT.
The PLL-SPLIT system provides good sound sensitivity and reduces buzz.
Video output is 2.0Vp-p through EQ AMP.
Built-in QIF AGC.
Improve over modulation characteristics and Vcc ripple rejection.
RECOMMENDED OPERATING CONDITIONS
Supply Voltage Range (Vcc) • • • • • • • • 4.75 to 5.25 V
Rated Supply Voltage (Vcc) • • • • • • • • 5.0 V
APPLICATION
TV,VTR
PIN CONFIGURATION (TOP VIEW)
RF AGC DELAY
1
24
SIF CARRIER DET LEVEL
AFT OUT
2
23
APC FILTER
RF AGC OUT
3
22
VIDEO OUT
NC
4
21
NTSC / OTHER SW
VIF IN
5
20
Vcc
VIF IN
6
19
Vcc
GND
7
18
VCO COIL
GND
8
17
VCO COIL
SIF IN
9
16
SIF CARRIER DET OUT
IF AGC FILTER / FM RADIO
10
15
QIF OUT
FM DET COIL
11
14
AF FILTER
AUDIO OUT
12
13
LIMITER IN
24pin SSOP
MITSUBISHI
ELECTRIC
1
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
BLOCK DIAGRAM and PERIPHERAL CIRCUIT
Vcc 5V
5V
VCO COIL
5549
24
23
22
21
20
19
18
17
BPF
1K
16
15
14
VCO
LIM AMP
Radio
APC
TV
FM DET
VIDEO
DET
AMP
AFT
13
QIF DET
50K
IF AGC
50K
QIF AGC
Radio
TV
RF AGC
1
5V
2
4
3
5
6
AF AMP
SIF AMP
VIF AMP
7
8
9
10
11
12
N.C
TP3
TP1
SIF IN
VIF IN
SW1
5V
1
5V
FM det coil
5923
5V
TP2
MITSUBISHI
ELECTRIC
2
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
ABSOLUTE M AXIMUM RATINGS
( Ta = 25ºC, unless otherwise noted )
Parameter
Symbol
Supply
Voltage 1
Power
Consumption
Ratings
Vcc
6.0
V
Pd
1190
mW
Operating
Temperature
Topr
-20 to +75
ºC
Storage
Temperature
Tstg
-40 to +150
ºC
Temperature Characteristics
Note
Unit
( maximum ratings )
Mounting in standard circuit board
1750
1500
1250
1190
1000
714
750
500
250
0
-20
0
25
50
75
100
125
150
Ambient temperature Ta(ºC)
MITSUBISHI
ELECTRIC
3
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
ELECTRICAL CHARACTERISTICS (Vcc=5V,Ta=25ºC unless otherwise noted)
TV Mode
Measurement condition
NO
Parameter
Test
Test Input Input
Symbol Circuit Point Point SG
External
power
V10 V14
switches set to
position 1 unless
otherwise noted
Limits
MIN
TY P MAX
Unit Note
1
Circuit Current 1
ICC1
Vcc=5V
1
A
VIF
IN
SG1
—
—
VCC=5V
SW19=2
30
43
56
mA
2
Video Output
DC Voltage 1
V22
1
TP22A
—
—
0
—
SW10=2
3.2
3.5
3.8
V
3
Video Output
Voltage 1
Vo det
1
TP22A
VIF
IN
SG1
—
—
1.8
2.1
2.4 Vp-p
4
Video S/N
Video
S/N
1
TP22B
VIF
IN
SG2
—
—
SW22=2
51
56
—
dB
1
5
Video
Band Width
BW
1
TP22A
VIF
IN
SG3
Vari—
able
SW10=2
6.0
7.0
—
MHz
2
VIN
MIN
1
TP22A
VIF
IN
SG4
—
—
—
48
52
dBµ
3
VIN
MAX
1
TP22A
VIF
IN
SG5
—
—
—
dBµ
4
5
6
7
Input
Sensitiv ity
Maximum Allowable
Input
101 105
8
AGC Control
Range Input
GR
—
—
—
—
—
—
50
57
—
dB
9
IF AGC Voltage
V10
1
TP10
VIF
IN
SG6
—
—
2.9
3.2
3.5
V
V10H
1
TP10
—
—
—
—
4.0
4.4
—
V
Minimum IF AGC
V10L
Voltage
1
TP10
VIF
IN
SG7
—
—
2.2
2.4
2.6
V
Maximum IF AGC
10 Voltage
11
12
Maximum RF
AGC Voltage
V3H
1
TP3
VIF
IN
SG6
—
—
4.2
4.7
—
13
Minimum RF
AGC Voltage
V3L
1
TP3
VIF
IN
SG7
—
—
—
0.1
0.5
V
14
RF AGC
Delay Point
V3
1
TP3
VIF
IN
SG8
—
—
89
92
95
dBµ
6
MHz
7
MHz
8
MHz
9
SW1=1
V
15
Capture Range
CL-U
U
1
TP22A
VIF
IN
SG9
— —
1.0
1.7
—
16
Capture Range
CL-L
L
1
TP22A
VIF
IN
SG9
—
—
1.8
2.4
—
17
Capture Range
CL-T
T
—
—
—
—
—
—
3.1
4.1
—
23
35
70
mV
kHz
10
—
V
10
1.2
V
10
18
AFT Sensitiv ity
µ
1
TP2
VIF
IN
SG10
—
—
19
AFT Maximum
Voltage
V2H
1
TP2
VIF
IN
SG10
—
—
20
AFT Minimum
Voltage
V2L
1
TP2
VIF
IN
SG10
—
—
MITSUBISHI
ELECTRIC
3.85 4.15
—
0.7
4
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
Measurement condition
NO
Parameter
Test
Test
Symbol Circuit
Point
Input Input
Point SG
External
power
switches set to position
1 unless otherwise noted
V10 V14
Vari-
Limits
Unit Note
MIN
TY P MAX
35
40
—
dB
21
Inter
Modulation
IM
1
TP22A
VIF
IN
SG11 able
—
22
Dif f erential
Gain
DG
1
TP22A
VIF
IN
SG12 —
—
—
2
5
%
23
Dif f erential
Phase
DP
1
TP22A
VIF
IN
SG12 —
—
—
2
5
deg
24
Sy nc. tip
lev el
V22
SYNC
1
TP22A
VIF
IN
SG2
—
—
0.85 1.15 1.45
V
25
VIF Input
Resistor
RINV
2
TP5
—
—
—
—
1.2
kΩ
26
VIF Input
capacitance
CINV
2
TP5
—
—
—
—
5
pF
MITSUBISHI
ELECTRIC
SW10=2
11
5
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
Measurement condition
NO
Parameter
Test
Test
Symbol
Circuit Point
Input
Point
Input
SG
External
power
V10 V14
switches set to
position 1 unless
otherwise noted
Limits
Unit Note
MIN
TY P MAX
27
QIF Output
Voltage 1
QIF1
1
VIF IN SG2
—
TP15 SIF IN
SG13
—
90
96
102
dBµ
28
QIF Output
Voltage 2
QIF2
1
VIF IN SG2
TP15 SIF IN
SG14 —
—
90
96
102
dBµ
29
AF Output
(4.5MHz)
VoAF1
1
TP12
LIM
SG15 —
IN
—
300 430 615
30
AFOutput Distortion
(4.5MHz)
THD
AF1
1
TP12
LIM
SG15 —
IN
—
—
0.2
1.0
%
31
Limiting Sensitivity
(4.5MHz)
LIM1
1
TP12
LIM
SG16 —
IN
—
—
55
60
dBµ
12
32
AM Rejection
(4.5MHz)
AMR1
1
TP12
LIM
SG17 —
IN
—
40
46
—
dB
13
33
AF S/N
(4.5MHz)
AF
S/N1
1
TP12
LIM
SG19 —
IN
—
46
53
—
dB
14
34
SIF Input
Resistor
RINS
2
TP9
—
—
—
—
—
1.5
—
kΩ
35
SIF Input
capacitance
CINS
2
TP9
—
—
—
—
—
4
—
pF
mVrms
FM Radio Mode
Measurement condition
NO
Parameter
Symbol
Test
Test
Circuit Point
Input
Point
Input
SG
External
power
V10 V14
32
SIF detection out
High Voltage
V16H
1
TP16
—
33
SIF detection out
Low Voltage
V16L
1
TP16
34
SIF detection
Threshold Point
TSIF
1
35
RF AGC
Delay Point
V3F
36
AF Output
37
38
switches set to
position 1 unless
otherwise noted
Limits
Unit Note
MIN
TY P MAX
0
—
SW10=2
4.0
4.8
—
V
SIF
IN
SG20 0
—
SW10=2
—
0.2
1.0
V
TP16
SIF
IN
SG21 0
—
SW10=2
85
90
95
dBµ
15
1
TP3
SIF
IN
SG21 0
—
SW1=2
SW10=2
85
90
95
dBµ
16
VoF
1
TP12
LIM
IN
SG22 0
—
SW10=2
400
560
800 mVrms
AF Output
Distortion
THD
F
1
TP12
LIM
IN
SG22 0
—
SW10=2
—
0.2
1.0
%
AF S/N
S/N
F
1
TP12
LIM
IN
SG19 0
—
SW10=2
55
62
—
dB
—
MITSUBISHI
ELECTRIC
17
6
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
Measuring Circuit Diagram1
BPF
SW19
1K
Vcc=5V
1
A
TP22B
LIM IN
2
51
5V
SW21
TP24
1
2
1
SW22
VCO COIL
5549
2
SW15
2
TP16
24
23
22
21
20
19
18
17
2
1
1
SW13
TP15
16
15
14
13
VCO
LIM AMP
Radio
APC
TV
FM DET
VIDEO
DET
AMP
AFT
QIF DET
50K
IF AGC
50K
QIF AGC
Radio
TV
1
2
3
4
5V
N.C
TP3
TP1
5
6
AF AMP
SIF AMP
VIF AMP
RF AGC
7
8
9
10
11
12
TP10
1:1
TP9
SW1
TP12
5V
1
51
FM det coil
5V
5923
51
SIF IN
TP2
SW10
2
Vcc
1
VIF IN
V8
* All capacitor is 0.01µF, unless otherwise noted.
* The Measuring Circuit 1 is Mitsubishi standard evaluation fixture.
MITSUBISHI
ELECTRIC
7
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
Measuring Circuit Diagram2
24
23
22
21
20
19
18
17
16
15
14
13
VCO
LIM AMP
Radio
APC
TV
FM DET
VIDEO
DET
AMP
AFT
QIF DET
50K
IF AGC
50K
QIF AGC
Radio
TV
1
2
3
4
5
6
AF AMP
SIF AMP
VIF AMP
RF AGC
7
8
9
10
11
12
TP7
TP4
HI
HI
RX
meter
LO
RX
LO meter
* All capacitor is 0.01µF, unless otherwise noted.
MITSUBISHI
ELECTRIC
8
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
INPUT SIGNAL
SG
50ohm Termination
1
fo=58.75MHz
AM 20 KHz
2
fo=58.75MHz
90 dBµ
3
f1=58.75MHz 90 dBµ
f2=Frequency Variable
4
fo=58.75MHz
AM 20 KHz
77.8%
Level Variable
5
fo=58.75MHz
AM 20 KHz
14.0%
Level Variable
6
fo=58.75 MHz
80 dBµ
7
fo=58.75 MHz
110 dBµ Cw
8
fo=58.75 MHz
Level Variable
9
fo=Frequency Variable
AM 20 KHz 77.8 %
10
fo=Frequency Variable
90 dBµ Cw
11
f1=58.75MHz
f2=55.17MHz
f3=54.25MHz
Cw
Cw
Cw
12
fo=58.75MHz 87.5 % TV modulation Ten-step waveform
Sync Tip Level 90 dBµ
13
fo=54.25MHz
95 dBµ
Cw
14
fo=54.25MHz
75 dBµ
Cw
15
fo=4.5 MHz
90 dBµ
FM 400 Hz ±25 KHz dev
16
fo=4.5 MHz
Level Variable
17
fo=4.5 MHz
100 dBµ
18
fo=4.5 MHz
Level Variable Cw
19
fo=4.5 MHz
90 dBµ
Cw
20
fo=54.25 MHz
90 dBµ
Cw
21
fo=54.25 MHz
Level Variable Cw
22
fo=4.5 MHz
90 dBµ
90 dBµ
80 dBµ
80 dBµ
77.8 %
90 dBµ
Cw
Cw
70 dBµ Cw
Mixed Signal
Cw
Cw
90 dBµ
Mixed Signal
FM 400Hz ±25KHz dev
AM 400 Hz 30 %
FM 400 Hz ±75 KHz dev
MITSUBISHI
ELECTRIC
9
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
Notes
1. Video S/N
Input SG2 into VIF IN and measure the video out(Pin 22) noise in r.m.s
at TP22-B through a 5MHz (-3dB) L.P.F.
S/N=20 log
0.7 X V 0 det
NOISE
(dB)
2. Video Band width: BW
1. Measure the 1MHz component level of Video output TP22A with a spectrum
analyzer when SG3(f2=57.75MHz) is input into VIF IN. At that time,
measure the voltage at TP10 with SW10, set to position 2, and then fix
V10 at that voltage.
2. Reduce f2 and measure the value of (f2 -f1 ) when the (f2 -f1 ) component
level reaches -3dB from the 1MHz component level as shown below.
TP22
-3dB
( f2 - f1 )
1 MHz
BW
3. Input Sensitivity: VIN MIN
Input SG4 (Vi=90dBµ) into VIF IN , and then gradually reduce Vi and measure the input
level when the 20KHz component of Video output TP22A reaches -3dB from Vo det level.
4. Maximum Allowable Input: VIN MAX
1. Input SG5 (Vi=90dBµ) into VIF IN , and measure the level of the 20KHz
component of Video output.
2. Gradually increase the Vi of SG and measure the input level when the
output reaches -3dB.
MITSUBISHI
ELECTRIC
10
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
5. AGC Control Range: GR
GR = VIN MAX - VIN M IN
(dB)
6. RF AGC Operating Voltage: V3
Input SG8 into VIF IN and gradually reduce Vi and then measure the input
level when RF AGC output TP3 reaches 1/2 VCC, as shown below.
TP3
Voltage
V 3H
1/2VCC
V 3L
Vi
Vi(dBµ)
7. Capture range: CL - U
1. Increase the frequency of SG9 until the VCO is out of locked-oscillation.
2. Decrease the frequency of SG9 and measure the frequency fU when the
VCO locks.
CL - U = fU - 58.75
(MHz)
8. Capture range: CL - L
1. Decrease the frequency of SG9 until the VCO is out of locked-oscillation.
2. Increase the frequency of SG9 and measure the frequency fL when the
VCO locks.
CL - L = 58.75 - fL
(MHz)
9. Capture range: CL - T
CL - T = CL - U + CL - L
(MHz)
MITSUBISHI
ELECTRIC
11
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
10. AFT sensitivity u, Maximum AFT voltage V2H , Minimum AFT voltage V2L
1. Input SG10 into VIF IN, and set the frequency of SG10 so that the
voltage of AFT output TP2 is 3V . This frequency is named f(3).
2. Set the frequency of SG10 so that the AFT output voltage is 2V.
This frequency is named f(2)
3. IN the graph, maximum and minimum DC voltage is V2H and V2L,
respectively.
TP2
Voltage
5V
u=
1000 (mV)
f(2) - f(3) (kHz)
V 2H
(mV / kHz)
4V
V 2L
f(3)
f(2)
f(MHz)
11. Inter modulation: IM
1. Input SG11 into VIF IN, and measure EQ output TP22A with an oscilloscope.
2. Adjust AGC filter voltage V10 so that the minimum DC level of the
output waveform is 1.0V.
3. At this time, measure TP22A with a spectrum analyzer .
The inter modulation is defined as a difference between 0.92MHz and
3.58 MHz frequency components.
MITSUBISHI
ELECTRIC
12
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
12. Limiting Sensitivity: LIM
1. Input SG16 (Vi=90dBµ) into SIF IN, and measure the 400Hz component
level of AF output TP12.
2. Lower the input level of SG16, and measure the level of SG16 when the
VoAF level reaches -3dB.
-3dB
Audio output
[mVrms]
LIM
90
Input lev el
[dBµ]
13. AM Rejection: AMR
1. Input SG17 into SIF IN, and measure the output level of AF OUT (TP12).
This level is named VAM.
2. AMR is;
AMR = 20log
VoAF (mVr.m.s)
VAM (mVr.m.s)
(dB)
14. AF S/N: AF S/N
1. Input SG19 into SIF IN, and measure the output noise level of
AF OUT (TP12).
This level is named VN.
2. S/N is;
S/N = 20log
VoAF (mVr.m.s)
VN (mVr.m.s)
MITSUBISHI
ELECTRIC
(dB)
13
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
15. SIF detection threshold level TSIF
SG21 is applied to SIF IN and the input amplitude is swept.
Then, the level of SG21, TSIF, is measured at the time when the
DC voltage of SIF CARRIER DET OUT (TP16) has just begun to vary.
16. RF AGC voltage V3F
SG21 is applied to SIF IN and the input amplitude is swept.
Then, the level of SG21, V3F, is measured at the time when the
DC voltage of RF AGC OUT (TP3) has just reached 1/2Vcc.
17. AF S/ N (S/N F)
1. SG19 is applied to SIF IN and the output noise of AUDIO OUT (TP12)
is measured. The measured noise is named VNF.
2. S/N F is,
S/N F = 20log
VoF [mVr.m.s]
[dB]
VNF [mVr.m.s]
MITSUBISHI
ELECTRIC
14
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
VCO coil adjustment methods
1. Input SG2 (fo=58.75MHz, 90dBµ CW) into VIF IN.
2. And adjust the coil until the voltage of AFT output reaches about
Vcc/2=2.5V.
FM DET coil adjustment methods
1. The first thing, adjust the VCO coil.
2. Input SG13 (fo=54.25MHz, 95dBµ CW) into SIF IN.
3. Change the switch of SW13 and SW15 to 2 position.
4. Change to FM RADIO mode (V10=0V).
5. Adjust the DC voltage of AFT OUT to Vcc/2 and SIF det OUT to Low (under 1V).
MITSUBISHI
ELECTRIC
15
MITSUBISHI
ELECTRIC
e
1
24
D
y
JEDEC Code
–
E
HE
b
12
13
Weight(g)
0.2
Detail F
A2
A
Lead Material
Cu Alloy
L1
EIAJ Package Code
SSOP24-P-300-0.80
A1
F
c
L
b2
b2
e1
I2
A
A1
A2
b
c
D
E
e
HE
L
L1
y
Symbol
Dimension in Millimeters
Min
Nom
Max
–
–
2.1
0
0.1
0.2
–
1.8
–
0.3
0.35
0.45
0.18
0.2
0.25
10.0
10.1
10.2
5.2
5.3
5.4
–
0.8
–
7.5
7.8
8.1
0.4
0.6
0.8
–
1.25
–
–
–
0.1
0°
–
8°
–
0.5
–
–
7.62
–
–
1.27
–
Recommended Mount Pad
e
Plastic 24pin 300mil SSOP
I2
24P2Q-A
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
DETAILED DIAGRAM OF PACKAGE OUTLINE
16
e1
MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
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