ELECTRICAL OPERATING CHARACTERISTICS (continued)

°C; V (11 – 13) = 12 V; f = 38.9 MHz (unless otherwise specified)

Symbol

Parameter

Min.

Typ.

Max.

Unit

S/N

50

58

dB

B

Bandwidth of Video Amplifier (– 3dB)

6

MHz

dG

Differential Gain

4

10

%

d

φ

Differential Phase

2

10

%

4

30

20

30

Intermodulation at 1.1MHz (blue) (see Figures 2 and 3)

46

60

dB

Intermodulation at 1.1MHz (yellow) (see Figures 2 and 3)

46

50

dB

Intermodulation at 3.3MHz (blue) (see Figures 2 and 3)

46

54

dB

VCR Switches Off Output at : (VCR = low Level)

1.1

V

White Spot Inverter Threshold Level (see Figure 1)

6.6

V

White Spot Insertion Level (see Figure 1)

4.7

V

Noise Inverter Threshold Level (see Figure 1)

1.8

V

Noise Insertion Level (see Figure 1)

3.8

V

Tuner AGC output Current Range

0 to 10

mA

Tuner AGC Output Voltage

0.3

V

Tuner AGC Output Leakage Current

15

µA

AFC Output Voltage Swing (

∆f = 100 kHz)

10

11

V

∆f

Change of Frequency at AFC Output (voltage swing of 10V)

100

200

kHz

AFC Switches OFF (AFC = low level) at :

2.5

V

AFC Switches LOW (AFC = High level) at :

3.2

V

AFC Zero = Signal Output Voltage (minimum gain)

4

6

8

V

Note : 1.

S

N

=

(black to white)

⋅ (RMS at B = 5MHz)

(dB)

Figure 1 : Video Output Waveform Showing White Spot and Noise Inverter Threshold Levels

TDA2540 - TDA2541

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