JRC NJM2274R Datasheet

NJM2274

LOW POWER VIDEO AMPLIFIER WI TH Y-C MIX ER

■ GENERAL DESCRIPTION ■ PACKAGE OUTLINE

The NJM2274

is a low power, 3V operation video amplifier with

Y/C mixer and 75 ohm driver , which connect TV monitor directly.

The NJM2274 has mute function , and suitable for energy save
products and any low power system , which are Digit al Camera ,
DVC and other video amplifier system.

NJM2274R

■ FEATURES

● Low Operating Voltage 2.8 to 5.5V

● Internal Y/C MI X Circuit

● Y-input : Clamp
C-input : Bias

● Operating Current 9.3mA typ. at V

● Operating Current at Power Save 0.9mA typ. at V

+

=3.0V

+

=3.0V

● Bipolar Technology

● Package Outline VSP8

■ BLOCK DIAGLAM

Power Save

6

Vcc

5

Yin

Cin

Vref.

1

Disc.

8

Clamp

Bias

7

C mute GND

2

750Ω

3

Vout

4

Vsag

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NJM2274

■ ABOSOLUTE MAXIMUM RATINGS (Ta=25°C)

PARAMRTER SYMBOL RATINGS UNIT

Supply Voltage V+ 7.0 V
Power Dissipation PD 320 mW
Operating Temperature Range Topr -40 to +85
Storage Temperature Range Tstg -40 to +125

■ ELECTRICAL CHARACTERISTICS ( V

PARAMETER SYMBOL TEST CONDITION MIN. TYP. MAX. UNIT

Operating V olt age Vopr 2.8 3.0 5.5 V
Operating Current Iccq No Signal - 9.3 12.0 mA

Operating Current

(Power Save Mode)

Maximum Output Volt age Vom f=1kHz,THD=1% 2.2 - - Vpp
Volt age G a in Gv

Frequency Characteristic Gf
Differential Gain DG Yin=0.5Vpp,10Step Video Signal - 2.5 - %

Differential Phase DP Yin=0.5Vpp,10Step Video Signal - 1.0 - deg
Chroma Mute Cross talk CT Cin=4.43MHz,0.1Vpp - -65 - dB

S/N SNv

Second Distortion Hv

Input Resistance Zinc Chroma Input 16 20 24
Mute Switch Change Voltage

Power Save Switch
Change Voltage

(note) Sine Video Signal

Iccs Power Save Mode - 0.9 1.2 mA

VthMH 1.4 - V+
VthML 0 - 0.6
VthPH 1.4 - V+

VthPL 0 - 0.6

+

=3.0V,Ta=25°C)

Yin=100kHz , 0.5Vpp,
Sine Video Signal (note)
Yin=10MHz/100kHz,0.5Vpp,
Sine Video Signal (note)

Yin=0.5Vpp, 100%White Video
Signal , Cin=AC gnd Wide Band
100kHz to 6MHz,R
Yin=0.5Vpp,3.58MHz Red Field
Video Signal, Cin=AC gnd
R

=75ohm

L

=75ohm

L

°

C

°

C

11.9 12.4 12.9 dB

-1.0 0 +1.0 dB

- -60 - dB

- -40 - dB

kΩ

V

V

40uS<t<50u S

714mVpp

357mVpp

286mVpp

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