TDA9112A datasheet(20/60 Pages) STMICROELECTRONICS

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TDA9112A

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6.9

Miscellaneous

Table 6. Miscellaneous

(VCC = 12V, Tamb = 25°C)

Symbol

Parameter

Test Conditions

Value

Units

Min.

Typ.

Max.

Vertical blanking and horizontal lock indication composite output HLckVBk

ISinkLckBk

Sink current to HLckVBk pin

(58)

100

µA

VOLckBk

Output voltage on HLckVBk output

0.1

1.1

Horizontal moiré canceller

Modulation of TH by H. moiré function

HMoiréMode = 0

HMOIRE (Sad02h):

x0000000b

x1111111b

HMoiréMode = 1

HMOIRE (Sad02h):

x0000000b

x1111111b

0.02

0.04

Vertical moiré canceller

VV-moiré

Amplitude of modulation of V-drive sig-

nal on VOut pin by vertical moiré.

VMOIRE (Sad0Bh):

x0000000b

x1111111b

Protection functions

VThrXRay

Input threshold on XRay input(59)

VRefO

-10mV

VRefO

+10mV

tXRayDelay

Delay time between XRay detection

event and protection action

2TH

VCCXRayEn

Minimum VCC value for operation of

XRay detection and protection(62)

10.2

10.8

VCCEn

VCC value for start of operation at VCC

ramp-up(60)

8.0

VCCDis

VCC value for stop of operation at VCC

ramp-down(60)

6.8

Control voltages on HPosF pin and VCC for Soft start/stop operation(19)(61)

VHOn

Threshold for start/stop of H-drive sig-

nal

VBOn

Threshold for start/stop of B-drive sig-

nal

1.7

VHBNorm

Threshold for full operation duty cycle

of H-drive and B-drive signals

2.4

VCCStop

Minimum supply voltage when voltage

on HPosF pin reaches VHOn thresh-

old(63)

4.8

V. blank

H. lock

Yes

HH moire

–

()

∆

-----------------------------

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