View M52334_170915.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC DESCRIPTION
The M52334FP 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 and FM detector.
EQ OUT APC FILTER 1 2 3 4 5 6 7 8 9 20 EQ F/B 19 AFT OUT 18 RF AGC DELAY 17 VIF IN 16 VIF IN 15 GND 14 RF AGC OUT 13 IF AGC FILTER 12 NFB 11 AUDIO OUT
PIN CONFIGURATION (TOP VIEW)
FEATURES
EQ IN Vreg. OUT VCO COIL VCO COIL VCC VIDEO OUT SIF GND
* * * * * * * *
Video detection output is 2VP-P. It has built-in EQ AMP. The package is a 20-pin flat package, 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. 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. This IC corresponds to only inter of NTSC system.
M52334FP
LIMITER IN 10
Outline 20P2N-A
APPLICATION
TV sets, VCR tuners
RECOMMENDED OPERATING CONDITION
In case of VCC and Vreg. out short Supply voltage range....................................................4.75 to 5.25V Recommended supply voltage...................................................5.0V Incase of Vreg. out open Supply voltage range......................................................8.5 to 12.5V
BLOCK DIAGRAM
EQ F/B 20 RF AGC DELAY AFT OUT VIF IN 19 18 17 VIF IN 16 GND 15 IF AGC FILTER RF AGC OUT NFB 14 13 12 AUDIO OUT 11
VIF AMP RF AGC IF AGC AF AMP
EQ AMP
VIDEO DET
APC FM DET
AFT
VCO Vcc REG 1 EQ OUT APC FILTER 2 3 EQ IN 4 5 6 7 VCC 8 9
LIM AMP
10
VCO COIL Vreg. OUT VCO COIL
SIF GND VIDEO OUT LIMITER IN
1
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC ABSOLUTE MAXIMUM RATINGS (Ta=25C, unless otherwise noted)
Symbol VCC Vreg. OUT Pd Topr Tstg Surge Parameter Supply voltage1 Supply voltage Vreg. OUT Power dissipation Operating temperature Storage temperature Surge voltage resistance Surge protection capacitance 200pF resistance 0 Condition VCC and Vreg. out is not connected to each other. VCC and Vreg. out is not connected to each other. Ratings 13.2 6.0 1225 -20 to +85 -40 to +150 200 Unit V V mW C C V
ELECTRICAL CHARACTERISTICS (VCC=9V, Ta=25C, unless otherwise noted)
Symbol VIF section ICC1 ICC2 VCC2 V1 Vo det8 Vo det
Video S/N
Parameter
Test circuit
Test point
Input point
Input SG
Measurement condition switches set to position 1 unless otherwise indicated VCC=5V SW4=2, SW7=2 VCC=12V SW7=2 VCC=12V SW13=2 V13=0V
Limits Min. Typ. Max. Unit
Circuit current1 VCC=5V Circuit current2 VCC=12V Vreg voltage2 Video output DC voltage1 Video output voltage8 Video output voltage1 Video S/N Video band width Input sensitivity Maximum allowable input AGC control range input IF AGC voltage Maximum IF AGC voltage Minimum IF AGC voltage Maximum RF AGC voltage Minimum RF AGC voltage
RF AGC operation voltage
1 1 1 1 1 1 1 1 1 1
-
A A TP4 TP1A
- - - -
- - - - SG1 SG1 SG2 SG3 SG4 SG5
-
33 31 4.7 3.45 0.85 1.85 51 5.0 - 101 50 2.85 4.0 2.2
40.5 40.5 5.00 3.9 1.1 2.2 56 7.0 48 105 57 3.15 4.4 2.4 8.7 0.1 89 1.3 2.0 3.3 30 8.2 0.7 4.5 42 2 2 1.4 1.2 5
47 49 5.3 4.35 1.35 2.55 - - 52 - - 3.45 - 2.6 - 0.5 92 - - - 70 - 1.2 4.8 - 5 5 1.8 - -
mA mA V V V P-P V P-P dB MHz dB dB dB V V V V V dB MHz MHz MHz mV/kHz V V V dB % deg V k pF
TP8 VIF IN TP1A VIF IN TP1B VIF IN TP1A VIF IN TP1A VIF IN TP1A VIF IN
- -
SW1=2 SW13=2 V13=variable
BW VIN MIN VIN MAX GR V13 V13H V13L V14H V14L V14 CL-U CL-L CL-T V19H V19L AFT def1 IM DG DP V3 SYNC RINV CINV
1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2
TP13 VIF IN TP13
-
SG6
-
TP13 VIF IN TP14 VIF IN TP14 VIF IN
SG7 SG2 SG2 SW13=2 V13=4V SW13=2 V13=1V
8.0 - 86 0.8 1.4 2.5 20 7.7 - 4.2
Capture range U Capture range L Capture range T AFT sensitivity AFT maximum voltage AFT minimum voltage AFT defeat 1 Inter modulation Differential gain Differential phase Sync. tip level VIF input resister VIF input capacitance
TP14 VIF IN SG8 TP1A VIF IN SG9 TP1A VIF IN SG9 - - - TP19 VIF IN SG10 TP19 VIF IN SG10 TP19 VIF IN SG10 TP19 VIF IN - TP3A VIF IN SG11 TP3A VIF IN SG12 TP3A VIF IN SG12 TP3A VIF IN TP17 TP17 SG2 SW13=2 V13=variable
35 - - 1.0 - -
2
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC
ELECTRICAL CHARACTERISTICS (cont.)
Symbol SIF section V1 VoAF THD AF LIM AMR AF S/N Parameter Test circuit Test point Input point - SIF IN SIF IN SIF IN SIF IN SIF IN Measurement condition Input switches set to position 1 unless SG otherwise indicated - SG16 SG16 SG17 SG18 SG19 Limits Min. Typ. Max. Unit
AF output DC voltage AF output AF output distortion Limiting sensitivity AM rejection AF S/N
1 1 1 1 1 1
TP11 TP11 TP11 TP11 TP11 TP11
3.5 565 - - 55 55
4.4 790 0.4 42 65 65
5.3 1125 0.9 55 - -
V mVrms % dB dB dB
ELECTRICAL CHARACTERISTICS TEST METHOD
Video S/N Input SG2 into VIF IN and measure the video out (Pin 3) noise in r.m.s at TP3-B through a 5MHz (-3dB) L.P.F. 0.7xVo det NOISE V18 RF AGC operating voltage Input SG8 into VIF IN, and gradually reduce Vi and then measure the input level when RF AGC output TP14 reaches 1/2 V CC, as shown below. BW Video band width 1. Measure the 1MHz component level of EQ output TP3A with a spectrum analyzer when SG3 (f2=44.75MHz) is input into VIF IN. At that time, measure the voltage at TP13 with SW13, set to position 2, and then fix V13 at that voltage. 2. Reduce f2 and measure the value of (f2-f0) when the (f2-f0) component level reaches -3dB from the 1MHz component level as shown below.
TP18 V18L Vi Vi (dB) 1/2VCC TP18 Voltage V18H
GR AGC control range GR=VIN MAX-VIN MIN (dB)
S/N=20 log
(dB)
-3dB
CL-U Capture range 1. Increase the frequency of SG9 until the VCO is out of lockedoscillation. 2. Decrease the frequency of SG9 and measure the frequency fU when the VCO locks. CL-U=fU-45.75 (MHz)
1MHz BW ( f2 - f0 )
CL-L Capture range 1. Decrease the frequency of SG9 until the VCO is out of lockedVIN MIN Input sensitivity Input SG4 (Vi=90dB) into VIF IN, and then gradually reduce Vi and measure the input level when the 20kHz component of EQ output TP3A reaches -3dB from Vo det level. VIN MAX Maximum allowable input 1. Input SG5 (Vi=90dB) into VIF IN, and measure the level of the 20kHz component of EQ output. 2. Gradually increase the Vi of SG and measure the input level when the output reaches -3dB. oscillation. 2. Increase the frequency of SG9 and measure the frequency fL when the VCO locks. CL-L=45.75-fL (MHz) CL-T Capture range CL-T=CL-U+CL-L (MHz)
3
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC
AFT sensitivity, V19H AFT maximum voltage, V19L AFT minimum voltage 1. Input SG10 into VIF IN, and set the frequency of SG10 so that the voltage of AFT output TP19 is 5V. This frequency is named f(3). 2. Set the frequency of SG10 so that the AFT output voltage is 4V. This frequency is named f (2) 3. IN the graph, maximum and minimum DC voltage are V 19H and V19L, respectively.
TP19 Voltage
AF S/N 1. Input SG19 into SIF input, and measure the output noise level of AF output TP11. This level is named VN. 2. S/N is; S/N=20log VoAF (mVr.m.s) VN (mVr.m.s) (dB)
THE NOTE IN THE SYSTEM SETUP
M52334FP has 2 power supply pins of Vcc (pin 7) and Vreg. OUT (pin 4). Pin 7 is for AFT output, RF AGC output circuits and 5V regulated power supply circuit and Pin 4 is for the other circuit blocks. In case M52334FP is used together with other ICs like VIF operating at more than 5V, the same supply voltage as that of connected ICs is applied to VCC and Vreg. Out is opened. The other
5V
V19H 4V
circuit blocks, connected to Vreg. OUT are powered by internal 5V regulated power supply. In case the connecting ICs are operated at 5V, 5V is supplied to both VCC and Vreg.OUT.
V19L f (3) 1000 (mV) f (2) - f (3) (kHz) (mV/kHz) f (2) f (MHz)
INPUT SIGNAL
SG No. 1 2 3 4 5 6 7 8 9 10 11 Signals (50 termination) f0=45.75MHz AM20kHz 77.8% 90dB f0=45.75MHz 90dB CW f1=45.75MHz 90dB CW (Mixed signal) f2=Frequency variable 70dB CW (Mixed signal) f0=45.75MHz AM20kHz 77.8% level variable f0=45.75MHz AM20kHz 14.0% level variable f0=45.75MHz 80dB CW f0=45.75MHz 110dB CW f0=45.75MHz CW level variable f0=Variable AM20kHz 77.8% 90dB f0=Variable 90dB CW f1=45.75MHz 90dB CW (Mixed signal) f2=42.17MHz 80dB CW (Mixed signal) f3=41.25MHz 80dB CW (Mixed signal) f0=45.75MHz 87.5% TV modulation ten-step waveform Sync tip level 90dB f1=41.25MHz 103dB CW f1=41.25MHz 70dB CW f1=45.75MHz 90dB CW (Mixed signal) f2=41.25MHz 70dB CW (Mixed signal) f0=4.5MHz 90dB FM400Hz25kHz dev f0=4.5MHz FM400Hz25kHz dev level variable f0=4.5MHz 90dB AM400Hz 30% f0=4.5MHz 90dB CW
=
IM Intermodulation 1. Input SG11 into VIF IN, and measure EQ output TP3A with an oscilloscope. 2. Adjust AGC filter voltage V13 so that the minimum DC level of the output waveform is 1.0V. 3. At this time, measure, TP3A with a spectrum analyzer. The intermodulation is defined as a difference between 0.92MHz and 3.58MHz frequency components. LIM Limiting sensitivity 1. Input SG17 (Vi=90dB) into SIF input, and measure the 400Hz component level of AF output TP11. 2. Lower the input level of SG17, and measure the level of SG17 when the VoAF level reaches -3dB. AMR AM Rejection 1. Input SG18 into SIF input, and measure the output level of AF output TP11. This level is named VAM. 2. AMR is; AMR=20log VoAF (mVr.m.s) VAM (mVr.m.s) (dB)
12 13 14 15 16 17 18 19
4
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC TEST CIRCUIT
VCC AFT OUT IF IN
RF AGC Vreg. Delay OUT
RF AGC OUT
AF OUT
20
19
18
17
16
15
14
13
12
11
VIF AMP RF AGC IF AGC AF AMP
EQ AMP
VIDEO DET
APC FM DET
AFT
VCO Vcc REG 1 2 3 4 5 6 7 8 9
LIM AMP
10
2.2VP-P EQ OUT
VCC VIDEO OUT
TYPICAL CHARACTERISTICS
THERMAL DERATING (MAXIMUM RATING)
1750
POWER DISSIPATION Pd (mW)
1500 1250 1225 1000 750 500 250 0 -20
637
0
25
50
75
100
125
150
AMBIENT TEMPERATURE Ta (C)
5
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC APPLICATION EXAMPLE 1
VIF IN 51 V13 2 27k TP14 TP20 33k 19 18 TP18 17 1:1 16 15 14 13 0.22 TP13 12 11 0.1 7.5k 1 SW13 TP11
150k TP19 150k
20
VIF AMP RF AGC IF AGC AF AMP
EQ AMP
VIDEO DET
APC FM DET
AFT
VCO Vcc REG 1 2 3 4 5 6 7 8 9
LIM AMP
10
0.1 SW3 1 1k 2 62 1M 33 VCO COIL 5540 SIF IN L P F TP1B 1 SW4 2 TP8 2 SW7 1 Units Resistance : Capacitance : F A VCC 51
TP1A
All capacitor is 0.01F, unless otherwise specified. The Measuring Circuit 1 is Mitsubishi standard evaluation fixture.
6
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC APPLICATION EXAMPLE 2
LO RX meter HI
TP17 20 19 18 17 16 15 14 13 12 11
VIF AMP RF AGC IF AGC AF AMP
EQ AMP
VIDEO DET
APC FM DET
AFT
VCO Vcc REG 1 2 3 4 5 6 7 8 9
LIM AMP
10
33F All capacitor is 0.01F, unless otherwise specified.
7
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC Pin 1 (RF AGC DELAY)
An output amplitude is positive 2.2VP-P in the case of 87.5% video modulation.
1
internal driving current : 3mA
1.4VO-P
Pin 2 (APC FILTER)
In the locked state, the cut-off frequency of the filter is adjusted effectively by an external resistor so that it will be in the range of around 30 to 200kHz. In case the cut-off frequency is lower, the pull-in speed becomes slow. On the other hand, a higher cut-off frequency widen the pull-in range and band width, which results in a degradation in the S/N ratio. So, in the actual TV system design, the appropriate constant should be chosen for getting desirable performance considering above conditions.
Bias 12k
2
[V2]
[Pin 2 output]
3.0VO-P [FM mod. frequency] fo [IF input frequency] 100kHz
Pin 3 (EQ INPUT)
It is an open-base input. The IF AGC does not work correctly, unless a DC element of pin 8 output is applied to it.
3
Pin 4 (REG. OUTPUT)
4
10.5k
It is a regulated 5V output which has current drive capability of approximately 10mA.
3.8k
8
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC Pin 5, Pin 6 (VCO COIL)
850
850
5 6
466
466
Connecting a tuning coil and capacitor to these pins enables an oscillation. The tuning capacitor of about 30pF is recommended. The oscillation frequency is tuned in f0. In the actual adjustment, the coil is tuned so that the AFT voltage is reached to Vcc/2 with f0 as an input. The printed pattern around these pins should be designed carefully to prevent an pull-in error of VCO, caused by the leakage interference from the large signal level oscillator to adjacent pins. The interconnection should be designed as short as possible. In case the printed pattern has the interference problem, a capacitor of about 1pF is connected between pin 5 or 6 and GND so as to cancel the interference and keep enough pull-in range even in a weak electric field.
Pin 7 (VCC)
VCC
7
The recommended supply voltage is 5V or 9 to 12V. In the case of 5V supply, it should be tied to pin 17. In the case of 9 to 12V supply, a regulated output of 5V are available in pin 17.
Pin 8 (VIDEO OUTPUT)
An output amplitude is positive 2VP-P in the case of 87.5% video modulation.
8
internal driving current : 2mA
Pin 9 (GND)
6
It is ground (GND) for the SIF.
9
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC Pin 10 (LIMITER INPUT)
Terminal voltage : 2.2V Bias
10
The input impedance is 2k.
2k 2k
Pin 11 (AF OUTPUT)
11
The FM detector can respond to the 4.5MHz intercarrier signal without an adjustment and external components by adopting the PLL technique. The output DC voltages of 4.4V0-P and 2.4V0-P are in the Vcc of 9V and 5V, respectively. Since its output frequency is more than 100kHz in no loading condition, it can also respond to the multi audio broadcasting.
internal driving current : 1mA
Pin 12 (AUDIO F/B)
Terminal voltage : 3.0V
The frequency response of the audio output is set by the external capacitor of pin 12.
12
50k 50k
[Pin 11 output] In the case of 0.1F, the cut-off frequency is 35Hz.
[FM mod. frequency] 100kHz
Connecting series resistor to the capacitor above, can reduce an audio output amplitude.
10
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC Pin 13 (IF AGC FILTER)
VCC
In spite of the 1-pin filter configuration, 2-pin filter characteristics are available by utilizing the dynamic AGC circuit.
[V8]
13
1k
0
weak electric field [IF input]
strong electric field
Pin 14 (RF AGC OUTPUT)
A current mode output is available in the reverse AGC operation.
The maximum outflow current is 0.2mA.
14
VCC Tuner [V14] weak electric field [IF input] (in open-loop condition)
The maximum inflow current is 0.2mA.
strong electric field
0
Note: Connecting a nonpolarity capacitor of 1F between pin14 and pin 18 improves AGC operating speed. In that case, the capacitors between pin14/pin18 and ground should be removed.
Pin 15 (GND)
15
It is GND pin except for SIF.
Pin 16, Pin 17 (VIF INPUT)
Bias
5
SAW
4
It should be designed considering careful impedance matching with the SAW filter.
1.2k 1.2k
Terminal voltage : 1.45V
11
MITSUBISHI ICs (TV)
M52334FP
PLL-SPLIT VIF/SIF IC Pin 18 (RF AGC DELAY)
VCC
An applied voltage to the pin1 is for changing a RF AGC delay point. In the 3-in-1 type application, the regulated output from the regulator is suitable for a power supply (Vcc) to it, because there may be difference between the tuner and main board supply. TV tuner, VIF demodulator and RF modulator are togetherin one package.
18
Pin 19 (AFT OUTPUT)
Since an AFT output is provided by a high impedance source, the detection sensitivity can be set by an external resistor. The muting operation will be on in following two cases; 1) the APC is out of locking, 2) the video output becomes small enough in a weak electric field.
Tuner Vcc [V2] Vcc 2 (in open-loop condition)
VCC The maximum outflow current is 0.2 mA.
2
The maximum inflow current is 0.2 mA.
0
[fo]
In the case of 5V supply, it should be considered that the maximum AFT and RF AGC output are less than 4.2V and 4.7V, respectively.
Pin 20 (EQ F/B)
Both the external coil and capacitor determine the frequency response of EQ output. The series connected resistor is for damping.
20
16.8k 500 3.1k
3.9k
12

▲Up To Search▲

Price & Availability of M52334

	To Download M52334 Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .