TDA4433 查看數據表（PDF） - STMicroelectronics

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TDA4433

TV SIGNAL IDENTIFICATION CIRCUIT AND AFC INTERFACE

STMicroelectronics 

TDA4433

ELECTRICAL CHARACTERISTICS (continued)

Symbol

V3

V3U

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

tfly 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

3/5

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