TDA2540 ST Microelectronics, TDA2540 Datasheet - Page 3

• Manufacturer Part Number: TDA2540
• Description: IF AMPLIFIER WITH DEMODULATOR AND AFC
• Manufacturer: ST Microelectronics

ELECTRICAL OPERATING CHARACTERISTICS (continued)
Note : 1.
Figure 1 : Video Output Waveform Showing White Spot and Noise Inverter Threshold Levels
T
amb
Symbol
V
V
V
V
V
V
V
S/N
V
dG
12-13
12-13
14-13
14-13
d
6-13
6-13
5-13
B
I
I
= 25 C; V (11 – 13) = 12 V; f = 38.9 MHz (unless otherwise specified)
4
4
5-13
f
N
S
V
N
V
Signal to Noise Ratio (V
Bandwidth of Video Amplifier (– 3dB)
Differential Gain
Differential Phase
Carrier Signal at Video Output (V
2nd Harmonic of Carrier at Video Output (V
Intermodulation at 1.1MHz (blue) (see Figures 2 and 3)
Intermodulation at 1.1MHz (yellow) (see Figures 2 and 3)
Intermodulation at 3.3MHz (blue) (see Figures 2 and 3)
VCR Switches Off Output at : (VCR = low Level)
White Spot Inverter Threshold Level (see Figure 1)
White Spot Insertion Level (see Figure 1)
Noise Inverter Threshold Level (see Figure 1)
Noise Insertion Level (see Figure 1)
Tuner AGC output Current Range
Tuner AGC Output Voltage
Tuner AGC Output Leakage Current
AFC Output Voltage Swing ( f = 100 kHz)
Change of Frequency at AFC Output (voltage swing of 10V)
AFC Switches OFF (AFC = low level) at :
AFC Switches LOW (AFC = High level) at :
AFC Zero = Signal Output Voltage (minimum gain)
O
RMS at B
black to white
TDA2541 V
TDA2540 V
5MHz
dB
14-13
14-13
I
= 10mV) (see note 1)
= 11V, V
= 5V, V
Parameter
I
= 10mV)
4-13
4-13
= 12V
= 12V
I
= 10mV)
Min.
3.2
50
46
46
46
10
4
TDA2540 - TDA2541
0 to 10
Typ.
100
6.6
4.7
1.8
3.8
58
20
60
50
54
11
6
4
2
4
6
Max.
200
1.1
0.3
2.5
10
10
30
30
15
8
mV
mV
MHz
Unit
kHz
mA
dB
dB
dB
dB
%
%
V
V
V
V
V
V
V
V
V
V
RMS
RMS
A
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