Video IF Amplifier and Demodulator
TDA 5930-5
Bipolar IC
Features
q
q
q
q
Multistandard video IF
Interference suppression circuitry
Mean/peak value control
Area of application: multistandard TV / VCR, mono, stereo
cable converter, mono, stereo
P-DIP-16-1
Type
TDA 5930-5
Ordering Code
Q67000-A5135
Package
P-DIP-16-1
Circuit Description
Video IF for all European standards. The analog setting function (delayed tuner AGC threshold) is
controlled via a potentiometer.
The IC is suitable for use in Euro- or multi-standard TV sets for mono and stereo application.
The component includes a four-stage, capacitively coupled, symmetrically designed and controlled
amplifier, a limiter with selection, and a mixer for quasi-synchronous demodulation of positive and
negative modulated IF signals. In addition a video output amplifier and noise suppression circuitry
are included. This output is used for generating the AGC voltage. The AGC for both modulation
types has been realized as integral AGC with noise-free peak and mean value detector (only for
positive modulation). A delayed tuner AGC with positive AGC direction (increase in tuner AGC
voltage
→
increased gain) is derived from the AGC voltage via a threshold amplifier set by means
of an external potentiometer.
A positive video output with 3 Vpp and a negative video output with 2 Vpp are available.
Semiconductor Group
13
06.94
TDA 5930-5
Block Diagram
Semiconductor Group
14
TDA 5930-5
Pin Functions
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Function
Video IF input
Standard switch over B/G-L
Ground
AGC time constant
Tuner AGC output
Tuner AGC threshold
N.C.
Demodulator tank circuit
Demodulator tank circuit
Low pass (mean value generation)
Positive video output
Negative video output
Supply voltage
N.C.
Ground
Video IF input
Semiconductor Group
15
TDA 5930-5
Absolute Maximum Ratings
T
A
= 25 ˚C
Parameter
Supply voltage
Pos. video output
Pos. video output
Demodulator tank circuit
Neg. video output
Neg. video output
Tuner AGC threshold
Tuner AGC output
IF input
IF control
Standard switch-over
Auxiliary control
Junction temperature
Storage temperature
Thermal resistance (system-air)
Operating Range
Supply voltage
Supply voltage, delayed tuner AGC
Ambient temperature during operation
Input frequency range – 3 dB
Input frequency range – 0.3 dB
Symbol
min.
Limit Values
max.
13.5
5
10
+
V
13
5
+
V
13
6
+
V
13
6
8.5
6
6
150
– 40
125
70
V
mA
V
V
mA
V
V
V
V
V
V
V
˚C
˚C
K/W
0
–3
0
0
–3
0
0
0
0
0
0
0
Unit
V
13
I
11
V
11
V
8
/
V
9
I
12
V
12
V
6
V
5
V
1
/
V
16
V
4
V
2
V
10
T
j
T
stg
R
th SA
V
13
V
5
T
A
f
IF
f
IF
10.5
1
0
10
30
13.5
13.5
70
100
75
V
V
˚C
MHz
MHz
All voltage values are referenced to ground pin 3, 15, if not stated otherwise. The currents are
identified according to the source/sink principle.
If the IC is considered a sink (the current flows from the respective pin to ground), it is identified by
a negative algebraic sign.
However, if the IC is the source (the current flows form
V
8
via the respective pin), it is identified by
a positive algebraic sign.
Semiconductor Group
16
TDA 5930-5
Characteristics
V
S
=
V
13/15
= 12 V
±
10 %;
T
A
= 25 ˚C
Parameter
Symbol
min.
DC Characteristics
Tot. current consumption
AGC Voltage (figure 1)
Min. AGC
Max. AGC
37
53
69
mA
Limit Values
typ.
max.
Unit
Test Condition
V
1/16
= 10 mVrms
V
4
V
4
0
2.6
0.1
2.85
0.5
4.5
V
V
V
1/16
= 45
µVrms
V
1/16
= 175 mVrms
AGC-Time Constant (figure 6) with Neg. Modulation
Charge current (
I
max
:2)
Discharge current
Charge/discharge ratio
I
4
–
I
4
V
4
0.7
12
75
0.9
17
105
1.1
23
150
mA
µA
V
4
= 2 V;
V
11
< 5.2 V
V
4
= 2 V;
V
11
> 6.3 V
AGC-Time Constant (figure 7) with Pos. Modulation
Charge current
Discharge current
Discharge current
Charge/discharge ratio
I
4
–
I
4
–
I
4
5.5
0.1
7
0.2
8.0
0.3
mA
µA
V
4
270
330
420
µA
20000 35000 75000
V
4
= 2 V;
V
11
≥
9 V
V
4
= 2 V;
4.5 V <
V
11
< 8.2 V
V
4
= 2 V;
V
11
< 6 V
Mean Value Generation with Pos. Modulation
White level
Zero carrier level
Tuner AGC threshold
(figure 2)
I
5
=
I
max
:2
Tuner AGC current
(figure 3, 4)
V
10
V
10
V
6
I
6
V
4
V
4
–
I
5
3.9
3.3
3.9
550
2.8
0.35
3.0
4.3
3.7
4.3
750
3.1
0.4
4.0
4.7
4.1
4.7
950
3.4
0.45
5.0
V
V
V
µA
V
V
mA
V
1/16
= 10 mVrms
V
1/16
= 0 V;
V
4
= 3 V
R
6/ 15
=
∝
V
6
= 0 V
R
6/15
= 10 kΩ
V
5
= 0.5 V
13
V
1/16
= 100 mVrms
V
6
= 0.75 V
V
5
= 0.5 V
13
V
1/16
= 10 mVrms
V
6
= 4.0 V
–
I
5
0
–
10
µA
The characteristics data apply to the supply voltage range
V
S
stated or in case of alignment to the
alignment instructions (see
page 21).
All static voltages are referenced to ground if not stated
otherwise.
The input levels are given as rms values referenced to synchronous peak
f
PC
= 38.9 MHz.
Semiconductor Group
17