Philips (Now NXP) TDA8360, TDA8361, TDA8362 Schematic [ru]

INTEGRATED CIRCUITS
DATA SH EET
TDA8360; TDA8361; TDA8362
Integrated PAL and PAL/NTSC TV processors
Objective specification File under Integrated Circuits, IC02
Philips Semiconductors
March 1994
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
FEATURES Available in TDA8360, TDA8361
and TDA8362
Vision IF amplifier with high sensitivity and good differential gain and phase
Multistandard FM sound demodulator (4.5 MHz to 6.5 MHz)
Integrated chrominance trap and bandpass filters (automatically calibrated)
Integrated luminance delay line
RGB control circuit with linear RGB
inputs and fast blanking
Horizontal synchronization with two control loops and alignment-free horizontal oscillator without external components
Vertical count-down circuit (50/60 Hz) and vertical preamplifier
Low dissipation (700 mW)
Small amount of peripheral
components compared with competition ICs
Only one adjustment (vision IF demodulator)
The supply voltage for the ICs is 8 V. They are mounted in a shrink DIL envelope with 52 pins and are pin compatible.
Additional features
TDA8360
Alignment-free PAL colour decoder for all PAL standards, including PAL-N and PAL-M.
TDA8361
PAL/NTSC colour decoder with automatic search system
Source selection for external audio/video (A/V) inputs (separate Y/C signals can also be applied).
TDA8362
Multistandard vision IF circuit (positive and negative modulation)
PAL/NTSC colour decoder with automatic search system
Source selection for external A/V inputs (separate Y/C signals can also be applied)
Easy interfacing with the TDA8395 (SECAM decoder) for multistandard applications.
TDA8360; TDA8361; TDA8362
GENERAL DESCRIPTION
The TDA8360, TDA8361 and TDA8362 are single-chip TV processors which contain nearly all small signal functions that are required for a colour television receiver. For a complete receiver the following circuits need to be added: a base-band delay line (TDA4661), a tuner and output stages for audio, video and horizontal and vertical deflection.
Because of the different functional contents of the ICs the set maker can make the optimum choice depending on the requirements for the receiver.
The TDA8360 is intended for simple PAL receivers (all PAL standards, including PAL-N and PAL-M are possible).
The TDA8361 contains a PAL/NTSC decoder and has an A/V switch.
For real multistandard applications the TDA8362 is available. In addition to the extra functions which are available in the TDA8361, the TDA8362 can handle signals with positive modulation and it supplies the signals which are required for the SECAM decoder TDA8395.
ORDERING INFORMATION
EXTENDED TYPE
NUMBER
TDA8360 52 shrink DIL plastic SOT247AG TDA8361 52 shrink DIL plastic SOT247AG TDA8362 52 shrink DIL plastic SOT247AG
March 1994 2
PINS PIN POSITION MATERIAL CODE
PACKAGE
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV
TDA8360; TDA8361; TDA8362
processors
QUICK REFERENCE DATA
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
V
P
I
P
Input voltages
V
45,46(rms)
V
5(rms)
V
6(rms)
V
15(p-p)
V
22,23,24(pp)
Output signals
V
O(p-p)
I
47
V
44
V
50(rms)
V
18,19,20(p-p)
I
37
I
43
Control voltages
V
control
supply voltage 7.2 8.0 8.8 V supply current 80 mA
video IF amplifier sensitivity (RMS value) 70 100 µV sound IF amplifier sensitivity (RMS value) 1 mV external audio input (RMS value) TDA8361, TDA8362 350 mV external CVBS input (peak-to-peak value) TDA8361, TDA8362 1 V RGB inputs (peak-to-peak value) 0.7 V
demodulated CVBS output
2.4 V
(peak-to-peak value) tuner AGC control current 0 5mA AFC output voltage swing 6 V audio output voltage (RMS value) 700 mV RGB output signal amplitudes
4 V
(peak-to-peak value) horizontal output current 10 −−mA vertical output current 1 −−mA
control voltages for Volume, Contrast,
0 5V
Saturation, Brightness, Hue and Peaking
March 1994 3
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
DET
33
PHASE
DETECTOR
FBI/SCO
flyback sandcastle
PH2LF
PH1LF
XTAL1 XTAL2
HOUT
VSTART
39 38 37 34 3543
36
XTAL
OSCILLATOR
PHASE 2
PHASE 1
KILLERS
COLOUR
TUNING
LINE
OSCILLATOR
to
TDA4661
R-Y output
B-Y output
30
31
DEMODULATOR
PAL
IDENTIFICATION
ACC
AMPLIFIER
DETECTOR
COINCIDENCE
SAT
26
TDA8360; TDA8361; TDA8362
from
TDA4661
B-Y input
R-Y input
28
29
SET
CLAMPS
MATRIX
BANDPASS
CHROMINANCE
RESET
POWER
RIN
222324
BIN
GIN
21
CLAMP
SWITCH
MATRIX
LUMINANCE
Y DELAY
PEAKING
BYPASS
TRAP AND
RGBIN
BOUT
GOUT
181920
OUTPUT
PWL
ROUT
STAGES
MLA621 - 1
17
13 14 25
BRIPEAKIN
CON
INT
CVBS
VRAMP
41 42 40
AGC
DEC
VOUT
ADJ
TUNE
VFB
AGCOUT
49 47 48
VERTICAL
AGC
IF
45
IFIN1
OUTPUT
AMPLIFIER
46
IFIN2
DIVIDER
VERTICAL
AFC AND
SAMPLE-
AND-HOLD
DEMODULATOR
2
3
IFDEM1
44
IFDEM2
AFCOUT
H AND V
SEPARATION
VIDEO
IDENTIFICATION
VIDEO
AMPLIFIER
7
IFOUT
March 1994 4
4
IDENT
TDA8360
12
NOISE
DETECTOR
SUPPLY
TEST
8
DIG
DEC
AUDEEM
1
TUNING
MUTE
PREAMPLIFIER
VOLUME
50
DEM
AUOUT
DEC
PLLLIMITER
910 52
11
51
5
SOIF
P
V
GND2 GND1
control
volume
FT
DEC
BG
DEC
Fig.1 Block diagram for TDA8360.
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
sandcastle
FBI/SCO
flayback
PH2LF
PH1LF
XTAL1 XTAL2
HOUT
VSTART
36 39 38 37 34 3543
HUE 27
HUE
CONTROL
XTAL
OSCILLATOR
PHASE 2
PHASE 1
DET
33
PHASE
DETECTOR
KILLERS
COLOUR
TUNING
LINE
OSCILLATOR
R-Y output
to
TDA4661
B-Y output
30
31
DEMODULATOR
SYSTEM
MANAGER
ACC
AMPLIFIER
DETECTOR
COINCIDENCE
SAT
26
TDA8360; TDA8361; TDA8362
from
TDA4661
B-Y input
R-Y input
28
29
SET
CLAMPS
MATRIX
BANDPASS
CHROMINANCE
RESET
POWER
RIN
222324
BIN
GIN
21
CLAMP
SWITCH
MATRIX
LUMINANCE
Y DELAY
PEAKING
BYPASS
TRAP AND
RGBIN
BOUT
181920
ROUT
GOUT
MLA622 - 1
17
STAGES
OUTPUT
PWL
SWITCH
CHROMINANCE
14
15
SWITCH
13 16 25
LUMINANCE
BRI
CON
CHROMA
PEAKIN
EXT
CVBS
INT
CVBS
VRAMP
41 42 40
AGC
DEC
VOUT
ADJ
TUNE
VFB
AGCOUT
49 47 48
VERTICAL
AGC
IF
45
IFIN1
OUTPUT
AMPLIFIER
46
IFIN2
DIVIDER
VERTICAL
AFC AND
SAMPLE-
AND-HOLD
DEMODULATOR
2
3
IFDEM1
44
IFDEM2
AFCOUT
H AND V
SEPARATION
VIDEO
IDENTIFICATION
VIDEO
AMPLIFIER
7
IFOUT
March 1994 5
4
IDENT
TDA8361
12
NOISE
DETECTOR
SUPPLY
TEST
DIG
DEC
1
AUDEEM
8
6
EXTAU
TUNING
MUTE
PREAMPLIFIER
VOLUME
50
51
DEM
AUOUT
DEC
PLLLIMITER
5
910 52
11
SOIF
P
V
GND2 GND1
control
volume
FT
DEC
BG
DEC
Fig.2 Block diagram for TDA8361.
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
DET
R-Y output
30
DETECTOR
MANAGER
OSCILLATOR
DIVIDER
sandcastle
FBI/SCO
flyback
PH2LF
PH1LF
VRAMP
XTAL1 XTAL2
VOUT
HUE
XTALOUT
HOUT
VSTART
VFB
36 39 38 37 34 35 32 2743
41 42 40
HUE
CONTROL
XTAL
OSCILLATOR
PHASE 2
PHASE 1
OUTPUT
VERTICAL
33
PHASE
SYSTEM
TUNING
LINE
VERTICAL
to
TDA4661
B-Y output
31
DEMODULATOR
KILLERS
COLOUR
DETECTOR
COINCIDENCE
H AND V
SEPARATION
RESET
POWER
from
TDA4661
B-Y input
28
29
SET
CLAMPS
MATRIX
ACC
AMPLIFIER
NOISE
DETECTOR
TDA8362
TDA8360; TDA8361; TDA8362
BIN
R-Y input
RIN
GIN
222324
CLAMP
SWITCH
MATRIX
LUMINANCE
BANDPASS
CHROMINANCE
SWITCH
CHROMINANCE
BYPASS
TRAP AND
BOUT
GOUT
181920
STAGES
OUTPUT
PWL
Y DELAY
PEAKING
SWITCH
LUMINANCE
TUNING
ROUT
MBC214 - 1
17
16 13 15 14 2526 21
12
BRIPEAKINCVBS
CON
RGBIN
SAT
EXT
INT
CVBS
CHROMA
FT
DEC
Fig.3 Block diagram for TDA8362.
AFCOUT
AGC
DEC
AGCOUT
AUOUT
IDENT
AGC
47 48 44
50
4
IF
AMPLIFIER
45
46
IFIN1
IFIN2
49
ADJ
TUNE
AFC AND
SAMPLE-
DEMODULATOR
2
IFDEM1
AND-HOLD
3
7
IFDEM2
IFOUT
VIDEO
AMPLIFIER
VIDEO
IDENTIFICATION
March 1994 6
1
MUTE
PREAMPLIFIER
SWITCH
VOLUME
6
AUDEEM
EXTAU
DEM
DEC
PLL
LIMITER
5
51
SOIF
control
volume
TEST
SUPPLY
8
DIG
DEC
910 52
11
P
V
GND2 GND1
BG
DEC
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
PINNING (TDA8362)
SYMBOL PIN DESCRIPTION
AUDEEM 1 audio de-emphasis and ± modulation switch IFDEM1 2 IF demodulator tuned circuit IFDEM2 3 IF demodulator tuned circuit IDENT 4 video identification output/
52 51 50 49 48 47 46 45 44 43 42 41 40 39 38
37 36 35
34 33 32 31
30 29 28 27
DEC
BG
DEC
DEM
AUOUT TUNE
ADJ
DEC
AGC AGCOUT IFIN2
IFIN1 AFCOUT
VOUT VRAMP VFB PH1LF PH2LF FBI/SCO HOUT VSTART XTAL2 XTAL1 DET XTALOUT BYO
RYO RYI BYI HUE
SOIF 5 sound IF input and volume control EXTAU 6 external audio input IFOUT 7 IF video output DEC
DIG
GND1 9 ground 1 V
P
GND2 11 ground 2 DEC
FT
CVBS PEAKIN 14 peaking control input CVBS CHROMA 16 chrominance and A/V switch input BRI 17 brightness control input BOUT 18 blue output GOUT 19 green output ROUT 20 red output RGBIN 21 RGB insertion and blanking input RIN 22 red input GIN 23 green input BIN 24 blue input CON 25 contrast control input SAT 26 saturation control input HUE 27 hue control input (or chrominance output) BYI 28 BY input signal RYI 29 RY input signal RYO 30 RY output signal BYO 31 BY output signal XTALOUT 32 4.43 MHz output for TDA8395 DET 33 loop filter burst phase detector XTAL1 34 3.58 MHz crystal connection XTAL2 35 4.43 MHz crystal connection VSTART 36 supply/start horizontal oscillator HOUT 37 horizontal output FBI/SCO 38 flyback input/sandcastle output PH2LF 39 phase 2 loop filter PH1LF 40 phase 1 loop filter
IDENT
SOIF
IFOUT
DIG
GND1
V
GND2
FT
INT
EXT
BRI
BOUT
GOUT ROUT
RIN
GIN BIN
CON
SAT
1 2 3 4 5 6 7 8 9
10
P
11 12
13
TDA8362
14 15 16 17 18 19 20
21 22
23 24 25 26
MBC203
AUDEEM
IFDEM1 IFDEM2
EXTAU
DEC
DEC
CVBS
PEAKIN
CVBS
CHROMA
RGBIN
Fig.4 Pin configuration for
TDA8362.
INT
EXT
TDA8360; TDA8361; TDA8362
MUTE input
8 decoupling digital supply
10 supply voltage (+8 V)
12 decoupling filter tuning 13 internal CVBS input
15 external CVBS input
March 1994 7
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
SYMBOL PIN DESCRIPTION
VFB 41 vertical feedback input VRAMP 42 vertical ramp generator VOUT 43 vertical output AFCOUT 44 AFC output IFIN1 45 IF input 1 IFIN2 46 IF input 2 AGCOUT 47 tuner AGC output DEC
AGC
TUNE
ADJ
AUOUT 50 audio output DEC
DEM
DEC
BG
TDA8360
The TDA8360 has the following differences to the pinning:
Pin 6: external audio input not connected
Pin 15: external CVBS input not connected
Pin 16: chrominance and A/V switch input not connected
Pin 27: hue control input not connected.
TDA8361
The TDA8361 has the following differences to the pinning:
Pin 1: only audio de-emphasis Pin 27: only hue control Pin 32: 4.43 MHz output for TDA8395
is not connected.
FUNCTIONAL DESCRIPTION Video IF amplifier
The IF amplifier contains 3 AC-coupled control stages with a total gain control range of greater than 60 dB. The sensitivity of the circuit is comparable with that of modern IF ICs.
48 AGC decoupling capacitor 49 tuner take-over adjustment
51 decoupling sound demodulator 52 decoupling bandgap supply
The reference carrier for the video demodulator is obtained by means of passive regeneration of the picture carrier. The external reference tuned circuit is the only remaining adjustment of the IC.
In the TDA8362 the polarity of the demodulator can be switched so that the circuit is suitable for both positive and negative modulated signals.
The AFC circuit is driven with the same reference signal as the video demodulator. To ensure that the video content does not disturb the AFC operation a sample-and-hold circuit is incorporated; the capacitor for this function is internal. The AFC output voltage is 6 V.
The AGC detector operates on levels, top sync for negative modulated and top white for positive modulated signals.The AGC detector time constant capacitor is connected externally. This is mainly because of the flexibility of the application.
The time constant of the AGC system during positive modulation (TDA8362) is slow, this is to avoid any visible picture variations. This, however, causes the system to react very slowly to sudden changes in the input signal amplitude.
TDA8360; TDA8361; TDA8362
To overcome this problem a speed-up circuit has been included which detects whether the AGC detector is activated every frame period. If, during a 3-frame period, no action is detected the speed of the system is increased. When the incoming signal has no peak white information (e.g. test lines in the vertical retrace period) the gain would be video signal dependent. To avoid this effect the circuit also contains a black level AGC detector which is activated when the black level of the video signal exceeds a certain level.
The TDA8361 and TDA8362 contain a video identification circuit which is independent of the synchronization circuit. Therefore search tuning is possible when the display section of the receiver is used as a monitor. In the TDA8360 this circuit is only used for stable OSD at no signal input. In the normal television mode the identification output is connected to the coincidence detector, this applies to all three devices. The identification output voltage is LOW when no transmitter is identified. In this condition the sound demodulator is switched off (mute function). When a transmitter is identified the output voltage is HIGH. The voltage level is dependent on the frequency of the incoming chrominance signal.
March 1994 8
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
Sound circuit
The sound bandpass and trap filters have to be connected externally. The filtered intercarrier signal is fed to a limiter circuit and is demodulated by means of a PLL demodulator. The PLL circuit tunes itself automatically to the incoming signal, consequently, no adjustment is required.
The volume is DC controlled. The composite audio output signal has an amplitude of 700 mV RMS at a volume control setting of 6 dB. The de-emphasis capacitor has to be connected externally. The non-controlled audio signal can be obtained from this pin via a buffer stage. The amplitude of this signal is 350 mV RMS.
The TDA8361 and TDA8362 external audio input signal must have an amplitude of 350 mV RMS. The audio/video switch is controlled via the chrominance input pin.
Synchronization circuit
The sync separator is preceded by a voltage controlled amplifier which adjusts the sync pulse amplitude to a fixed level. The sync pulses are then fed to the slicing stage (separator) which operates at 50% of the amplitude.
The separated sync pulses are fed to the first phase detector and to the coincidence detector. The coincidence detector is used for transmitter identification and to detect whether the line oscillator is synchronized. When the circuit is not synchronized the voltage on the peaking control pin (pin 14) is LOW so that this condition can be detected externally. The first PLL has a very high static steepness, this ensures that the phase of the picture is independent of the line frequency. The line oscillator operates at twice the line frequency.
The oscillator network is internal. Because of the spread of internal components an automatic adjustment circuit has been added to the IC. The circuit compares the oscillator frequency with that of the crystal oscillator in the colour decoder. This results in a free-running frequency which deviates less than 2% from the typical value.
The circuit employs a second control loop to generate the drive pulses for the horizontal driver stage.
X-ray protection can be realised by switching the pin of the second control loop to the positive supply line. The detection circuit must be connected externally. When the X-ray protection is active the horizontal output voltage is switched to a high level. When the voltage on this pin returns to its normal level the horizontal output is released again.
The IC contains a start-up circuit for the horizontal oscillator. When this feature is required a current of 6.5 mA has to be supplied to pin 36. For an application without start-up both supply pins (10 and 36) must be connected to the 8 V supply line.
The drive signal for the vertical ramp generator is generated by means of a divider circuit. The RC network for the ramp generator is external.
Integrated video filters
The circuit contains a chrominance bandpass and trap circuit. The filters are realised by means of gyrator circuits and are automatically tuned by comparing the tuning frequency with the crystal frequency of the decoder. In the TDA8361 and TDA8362 the chrominance trap is active only when the separate chrominance input pin is connected to ground or to the positive supply voltage and when a colour signal is recognized.
TDA8360; TDA8361; TDA8362
When the pin is left open-circuit the trap is switched off so that the circuit can also be used for S-VHS applications.
The luminance delay line and the delay for the peaking circuit are also realised by means of gyrator circuits.
Colour decoder
The colour decoder in the various ICs contains an alignment-free crystal oscillator, a colour killer circuit and colour difference demodulators. The 90° phase shift for the reference signal is achieved internally. Because the main differences of the 3 ICs are found in the colour decoder the various types will be discussed.
TDA8360
This IC contains only a PAL decoder. Depending on the frequency of the crystals which are connected to the IC the decoder can demodulate all PAL standards. Because the horizontal oscillator is calibrated by using the crystal frequency as a reference the
4.4 MHz crystal must be connected to pin 35 and the 3.5 MHz crystal to pin 34. When only one crystal is connected to the IC the other crystal pin must be connected to the positive supply rail via a 47 k resistor. For applications with two 3.5 MHz crystals both must be connected to pin 34 and the switching between the crystals must be made externally. Switching of the crystals is only allowed directly after the vertical retrace. The circuit will indicate whether a PAL signal has been identified by the colour decoder via the saturation control pin.
When two crystals are connected to the IC the output voltage of the video identification circuit indicates the frequency of the incoming chrominance signal.
March 1994 9
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV processors
The conditions are:
Signal identified at f
= 3.6 MHz; VO = 6 V
osc
Signal identified at f
= 4.4 MHz (or no colour);
osc
VO = 8 V.
This information can be used to switch the sound bandpass filter and trap filter.
TDA8361
This IC contains an automatic PAL/NTSC decoder. The conditions for connecting the reference crystals are the same as for the TDA8360. The decoder can be forced to PAL when the hue control pin is connected to the positive supply voltage via a 5kΩ or 10 k resistor (approximately). The decoder cannot be forced to the NTSC standard. It is also possible to see if a colour signal is recognized via the saturation pin.
TDA8362
In addition to the possibilities of the TDA8361, the TDA8362 can co-operate with the SECAM add-on decoder TDA8395. The communication between the two ICs is achieved via pin 32. The TDA8362 supplies the reference signal (4.43 MHz) for the calibration system of the TDA8395, identification of the colour standard is via the same connection. When a SECAM signal is detected by the TDA8395 the IC will draw a current of 150 µA. When TDA8362 has not identified a colour signal in this condition it will go into the SECAM mode, that means it will switch off the RY and BY outputs and increase the voltage level on pin 32.
This voltage will switch off the colour-killer in the TDA8395 and switch on the RY and BY outputs of the TDA8395. Forcing the system to the SECAM standard can be achieved by loading pin 32 with a current of 150 µA. Then the system manager in the TDA8362 will not search for PAL or NTSC signals. Forcing to NTSC is not possible. For PAL/SECAM applications the input signal for the TDA8395 can be obtained from pin 27 (hue control) when this pin is connected to the positive supply rail via the 5 k or 10 k resistor. An external source selector is required by the TDA8395/TDA8362 combination for PAL/SECAM/NTSC applications.
RGB output circuit
The colour difference signals are matrixed with the luminance signal to obtain the RGB signals. Linear amplifiers have been chosen for the RGB inputs so that the circuit is suitable for incoming signals from the SCART connector. The contrast and brightness controls operate on internal and external signals.
The fast blanking pin has a second detection level at 3.5 V. When this level is exceeded the RGB outputs are blanked so that “On-Screen-Display” signals can be applied to the outputs. The output signal has an amplitude of approximately 4 V, black-to-white, with nominal input signals and nominal control settings. The nominal black level is 1.3 V.
TDA8360; TDA8361; TDA8362
March 1994 10
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV
TDA8360; TDA8361; TDA8362
processors
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC134).
SYMBOL PARAMETER MIN. MAX. UNIT
V
P
T
stg
T
amb
T
sol
T
j
THERMAL RESISTANCE
SYMBOL PARAMETER THERMAL RESISTANCE
R
th j-a
CHARACTERISTICS
= 8 V; T
V
P
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
supply voltage 9.0 V storage temperature 25 +150 °C operating ambient temperature 25 +70 °C soldering temperature for 5 s 260 °C maximum junction temperature (operating) 150 °C
from junction to ambient in free air 40 K/W
= 25 °C; unless otherwise specified.
amb
Supplies
V
P
I
P
I
HOSC
supply voltage (pin 10) 7.2 8.0 8.8 V supply current (pin 10) 80 mA horizontal oscillator start current
(pin 36)
P
tot
total power dissipation including start supply 0.7 W
IF circuit
V
ISION IF AMPLIFIER INPUTS (PINS 45 AND 46)
V
R C G V
i(rms)
I I cr
i(rms)
input sensitivity (RMS value) note 2
Input resistance (differential) note 3 2 k Input capacitance (differential) note 3 3 pF gain control range 64 −−dB maximum input signal (RMS value) 100 −−mV
note 1 6.5 −−mA
f
= 38.90 MHz 70 100 µV
i
= 45.75 MHz 70 100 µV
f
i
f
= 58.75 MHz 70 100 µV
i
March 1994 11
Philips Semiconductors Objective specification
Integrated PAL and PAL/NTSC TV
TDA8360; TDA8361; TDA8362
processors
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
VIDEO AMPLIFIER OUTPUT; NOTE 4(PIN 7) V
7
V
7
V
7
V
7
Z
O
I
bias
I
source
B bandwidth of demodulated output
G
diff
Φ
diff
NL
vid
V
th
V
ins
N
clamp
N
ins
δ
mod
S/N signal-to-noise ratio notes 7 and 11
V
7
V
7
negative modulation
zero signal output level note5 4.45 4.6 4.75 V top sync level 1.9 2 2.1 V
positive modulation (TDA8362)
zero signal output level note5 1.85 2 2.15 V white level 4.2 4.3 4.4 V
difference in amplitude between
015%
negative and positive modulation detection level of black level for
3.1 V positive modulation when no peak white is available in the signal
video output impedance −−50 internal bias current of NPN emitter
1 −−mA
follower output transistor maximum source current −−5mA
3dB 6 9 MHz
signal gain differential note 6 25% phase differential notes 6 and 7 1 5 deg video non linearity note 8 −−5% white spot threshold voltage level 4.8 V white spot insertion voltage level 3.2 V noise inverter clamping voltage level 1.4 V noise inverter insertion level note 9 2.6 V intermodulation notes 7 and 10
blue V yellow V blue V yellow V
= 0.92 or 1.1 MHz 60 66 dB
o
= 0.92 or 1.1 MHz 56 62 dB
o
= 2.66 or 3.3 MHz 60 66 dB
o
= 2.66 or 3.3 MHz 60 66 dB
o
V
= 10 mV 52 60 dB
i
end of control range 52 61 dB residual carrier signal note 7 1 mV residual 2nd harmonic of carrier
note 7 0.5 mV signal
March 1994 12
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