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NJM2527

COLOR TFT SIGNAL PROCESSOR

Japan Radio Corporation  

NJM2527

s ELECTRICAL CHARACTERISTICS

(Ta=25°C,VCC1=5V, VCC2=5V,TP20=TP31=TP45=2.5V,

TP19=2.8V,TP7=5V,TP38=1V,TP39=3V,TP44=0V,SW13=SW7=L)

PARAMETER

Color Killer

Operating Input Level

(NTSC)

Color Killer

Operating Input Level

(PAL)

Output Level Voltage

Difference among RGB

INT-EXT

Output Black Level

Voltage Difference

Gain Difference

Between Invert

And Non-invert

Gain Difference

Among RGB

INT-EXT

Gain Difference

SYMBOL

VKIN1

VKIN2

∆VBRGB

∆VBIE

∆GINV

∆GRGB

∆GIE

TEST CONDITION (TP=IC Pin No.)

SG6 (3.58MHz, 300mVpp) applied

to TP13, SG2 applied to TP11,

SG11 applied to TP9.This item

Measure input level at killer is tern

on at decrease the input swing.

TP19=0V, SG2 applied to

TP11, SG11 applied to TP9,

SG6 (4.43MHz, 300mVpp) applied

To TP13.This item measure input

level at killer is tern on at decrease

The input swing.

SG2 applied to TP11, SG11 applied

to TP9, SW7=H, SG1 (700mVpp)

applied to TP33, TP35,

TP37, SG10 applied to TP5.

Then VRB, VGB, and VBB define

the non-invert black level of TP48,

TP2, TP4. VRBI, VGBI, and VBBI

define the invert black level of them.

∆VBRGB=VRB-VGB,VBB-VGB=

VRBl-VGBl,

SW7=L,SG4 applied to TP28. Then

VRB (Y),VGB (Y),

and VBB (Y) defines the

non-inverting black level of TP48,

TP2, and TP4. VRBI (Y),

VGBI(Y), and VBBI (Y) define the

invert black level of them.

VBlE=VRB-VRB (Y), VGB-VGB (Y),

=VBB-VBB (Y),VRBl-VRBl(Y),

=VGBl-VGBl(Y),VBBl-VBBl(Y)

SG2 applied to TP11, SG11

Applied to TP9, SW7=H, SG1

(700mVpp) applied to TP33, TP35,

TP37, SG10 applied TP5.

This item measure the signal swing

(BLK-WHT) of TP48, TP2, TP4.

VRG, VGG, VBG define the non-

inverting side of them. VRGl, VGGl,

VBGl define the invert side of them.

SW7=L, SG4 applied TP28.

This item measure the signal swing

(BLK-WHT) of TP48, TP2, TP4.

VYRG, VYGG, VYBG define the

non-inverting side of them.

∆GINV =20LOG(VRGI/VRG)

=20LOG(VGGI/VGG)

=20LOG(VBGI/VBG)

∆VRGB =20LOG(VRG/VGG)

=20LOG(VGG/VBG)

=20LOG(VBG/VRG)

∆GIE =20LOG(VRG/VYRG)

=20LOG(VGG/VYGG)

=20LOG(VBG/VYBG)

MIN.

-

-

-150

-150

-0.6

-0.6

-0.6

TYP.

-42

-37

0

0

0

0

0

MAX.

-

-

+150

+150

+0.6

+0.6

+0.6

UNIT

dB

mV

mV

dB

Ver.3

-6-

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