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NJW1301

SIGNAL PROCESSOR FOR COLOR TFT FOR NTSC

Japan Radio Corporation  

NJW1301

sELECTRICAL CHARACTERICS

(Ta=25°C,VCC1=5V,VCC3=7V,VDD=5V,VEE1=-5V,TP2=TP5=TP27=TP40=2.5V,TP13=2.9V,TP15=3.1V,

TP34=3.0V,TP35=1V,TP26=TP42=5V,TP50=5V,TP58=4.7V,SW14=SW25=SW26=SW50=L)

PARAMETERS

SYMBOL

TEST CONDITIONS

MIN. TYP. MAX UNIT

Gain Difference

Between Invert

And Non-invert

SW26=H,TP26=H.SG10 applied to

TP29,31,33,41,SG1(0.7Vpp)

applied to TP41,SG2 applied to

∆GINV TP51,measure the

-0.6

0

0.6

amplitude(BLK-WHT) of TP44,

TP46,TP48. Define the

non-inverting side of VRG, VGG,

VBG, the invert side of VRGl,

dB

VGGl, VBGl.

Gain Difference

Among RGB

∆GINV=20LOG(VRGI/VRG)

∆VRGB

=20LOG(VGGI/VGG)

=20LOG(VBGI/VBG)

-0.6

0

0.6

∆VRGB=20LOG(VRG/VGG)

=20LOG(VGG/VBG)

=20LOG(VBG/VRG)

FRP Input

Threshold Voltage

VTHFRP

TP51=SG2,SW26=H,TP26=H,

SG1 applied to TP31,

increase TP41until the signal on

TP46 invert.

1.2

1.5

1.8 V

Interface Frequency

Characteristic

SW26=H,TP26=H,SG10 applied to

TP41,SG5(100kHz) applied to

TP31,SG2 applied to TP51. for

fINT

making the amplitude of sine wave

part of the non-invert signal on

4.5

5.5

TP46, increase the frequency until

attenuate by 3dB from the

amplitude at the 100kHz.

- MHz

EXTRGB Input

Threshold Voltage

VTHEXH Switching Voltage of TP26

3.3

-

-

VTHEXH=ON Level Voltage

V

VTHEXL

VTHEXL=OFF Level Voltage

-

-

1.6

Gγ1

SW26=H,TP26=H,SG2 applied to

TP51,SG10 applied to

TP41,SG7(0.35Vpp) applied to

TP29,31,33.

Define at TP35=1.8V,TP34=3.0V , 16.0 20.0 24.0

measure the slope on TP44,

TP46, and TP48.

Gamma Characteristic

dB

Gγ2

Gγ2

5.0

9.0 13.0

Gγ1

Input Voltage

Ver.02

-7-

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