TDA4433 Datasheet, PDF (3/5 Pages) STMicroelectronics – TV SIGNAL IDENTIFICATION CIRCUIT AND AFC INTERFACE

TDA4433
ELECTRICAL CHARACTERISTICS (continued)
Symbol
V₃
V_3U
V3L
R3
V4
I4
R₄
∆V₄
∆TS
V10
Parameter
Input Voltage Range
Upper Threshold Voltage
Lower Threshold Voltage
Input Resistance
Regulated Voltage
Output Current
Output Differential Resistance
Regulated Voltage Thermal Drift
Identification Output Voltage
R₁₀ Output Resistance
V₁₂ Switch off Threshold Voltage
I12 Input Flyback Current
R₁₂ Input Resistance
t_fly Flyback Pulse Duration
t
Time Delay between Leading Edges
of Flyback Pulse and Sync. Pulse
V₁₃ Video Input Signal (peak to peak)
V13 Sync. Pulse Amplitude
(above black level)
R₁₃ Input Resistance
Test Conditions
See Figure 2
See Figure 2
V3 = V4
I4 = 1 mA
No Identification, I10 = 1 mA
Identification
V₁₂ = 3 V
Min. Typ. Max.
4
8
V₄ – 25 V₄ V₄ + 25
V4 – 425 V4 – 400 V4 – 375
1.4
6.6
1
60
Unit
V
mV
mV
MΩ
V
mA
Ω
± 2 mV/°C
Vs – 1.3
100
0.5
10
10
0
V
20
mV
Ω
1
V
1.5
mA
kΩ
17 µsec.
3.5 µsec.
2.5
4.5
V
0.52
V
1.5
kΩ
Figure 1 : Medium Output Voltage vs. Supply
Voltage
Figure 2 : Digital AFC Threshold Voltage vs.
Frequency
Input Voltage (V₃)
V₃ > V₄
V4 – 0.4 V < V3 < V4
V2 < V4 – 0.4 V
Output Voltage (V₂)
High level
Low Level
Low Level
Output Voltage (V₆)
Low Level
Low Level
High Level
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