STV0056 datasheet(12/26 Pages) STMICROELECTRONICS

12 / 26 page

DC AND AC ELECTRICAL CHARACTERISTICS (continued)

(VCC = 12V, VDD =5V, Tamb =25

oC unless otherwise specified)

Symbol

Parameter

Test Conditions

Min.

Typ.

Max.

Unit

AUXILIARY AUDIO OUTPUT (Pins S2 OUT R, S2 OUT L, S3 OUT R, S3 OUT L) (continued)

THDAOFM

THD on S2 or S3

FM input as for APA50

µs de-emphasis, no ANRS

0.3

ZOUT L

ZOUT H

Audio Output Impedance

Low impedance mode

High impedance mode

100

Ω

I/O

VIL

VIH

Low Level Input

High Level Input

2.4

0.8

VOL

VOH

Low Level Output

High Level Output

Isink= 2mA

Isource = 2mA

3.2

0.2

4.6

0.4

LNBT

Tone Frequency

22.2

kHz

LNBD

Tone Signal Duty Cycle

No load connected on I/O

RESET

RTCCU

End of Reset Threshold for VCC

VDD = 5V, VCC going up

8.7

RTCCD

Start of Reset Threshold for VCC

VDD = 5V, VCC going down

7.9

RTDDU

End of Reset Threshold for VDD

VCC = 12V, VDD going up

3.8

RTDDD

Start of Reset Threshold for VDD

VCC = 12V, VDD going down

3.5

COMPOSITE SIGNAL PROCESSING

VIDC

VID IN

External load current < 1

µA

2.25

2.45

2.65

ZVI

VID IN Input Impedance

Ω

DEODC

DC Output Level (Pins VIDEEM)

2.25

2.45

2.65

DEOMX

Max AC Level before Clipping

(Pins VIDEEM)

GV = 0dB, Reg 01 = 00

VPP

DGV

Gain error vs GV @ 100kHz

GV = 0 to 12.7dB, Reg 01 = 00

→ 3F

-0.5

0.5

INVG

Inverter Gain

-0.9

-1

-1.1

VISOG

Video Input to SCART Outputs

Gain

De-emphasis amplifier mounted in unity

gain, Normal video selected

-1

DEBW

Bandwidth for 1VPP input

measured on Pins VIDEEM

@ - 3dB with GV = 0dB, Reg 01 = 00

MHz

DFG

Differential Gain on Sync Pulses

measured on Pins VIDEEM

GV = 0dB, 1VPP CVBS + 0.5VPP

25Hz sawtooth (input : VID IN)

ITMOD

Intermodulation of FM subcar-

riers with chroma subcarrier

7.02 and 7.2MHz sub-carriers,

12.2dB lower than chroma

-60

CLAMP STAGES (Pins CLAMP IN, S1, S2, S3 VID RTN)

ISKC

Clamp Input Sink Current

VIN = 3V

0.5

1.5

µA

ISCC

Clamp Input Source Current

VIN = 2V

405060

µA

VIDEO MATRIX

XTK

Output Level on any Output

when 1VPP CVBS input is

selected for any other output

@ 5MHz

-60

BFG

Output Buffer Gain (Pins S1 VID

OUT, S2 VID OUT, S2 VID OUT)

@ 100kHz

1.87

2.13

DCOLVH

DC Output Level

High impedance mode

0.2

ZOUT HV

Video Output Impedance

High impedance mode

Ω

VCL

Sync Tip Level on Selected

Outputs (Pins S1 VID OUT, S2

VID OUT)

1VPP CVBS through 10nF on input

1.05

1.3

1.55

VCL S3

Sync Tip Level at S3 VID OUT

with Black Level Adjust

b6 b7

1.36

1.52

1.67

1.84

STV0056A

12/26

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