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NJM2571
LOW VOLTAGE VIDEO AMPLIFIER WITH LPF
sGENERAL DESCRIPTION The NJM2571 is a Low Voltage Video Amplifier contained LPF circuit. Internal 75 driver is easy to connect TV monitor directly. The NJM2571 features low power and small package, and is suitable for low power design on downsizing of DSC and DVC.
sPACKAGE OUTLINE
NJM2571F1
sFEATURES q Operating Voltage 2.8 to 5.5V q 9dB amplifier q Internal LPF -35dB at 19MHz typ. q Internal 75 Driver Circuit (2-system drive) q Power Save Circuit q Bipolar Technology q Package Outline MTP6
sBLOCK DIAGRAM
V+
6
75Dri ver Vin 4 LPF 9dB
2
Vout
CLAMP
3
Vsag
5
1
GND
Power Save
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NJM2571
sABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER Supply Voltage Power Dissipation Operating Temperature Range Storage Temperature Range SYMBOL + V PD Topr Tstg
+
RATINGS 7.0 200 -40 to +85 -40 to +125
UNIT V mW C C
sELECTRICAL CHARACTERISTICS (V =3.0V,RL=150,Ta=25C) PARAMETER Operating Current Operating Current at Power Save Maximum Output Voltage Swing Voltage Gain Low Pass Filter Characteristic Differential Gain Differential Phase S/N Ratio 2nd. Distortion SW Change Voltage High Level SW Change Voltage Low Level SYMBOL ICC Isave Vom Gv TEST CONDITION No Signal Power Save Mode f=100kHz,THD=1% MIN. 2.2 8.5 -0.5 1.8 0 TYP. 8.0 30 2.5 9.0 0 -35 0.5 0.5 +60 -50 MAX. 12.0 50 9.5 0.5 -25 V
+
UNIT mA uA Vp-p dB dB % deg dB dB V
Vin=100kHz, 1.0Vp-p, Input Sine Signal Gfy4.5M Vin=4.5MHz/100kHz, 0.7Vp-p Gfy19M DG DP SNv Hv VthPH VthPL Vin=19MHz/100kHz, 0.7Vp-p Vin=1.0Vp-p, Input 10step Video Signal Vin=1.0Vp-p, Input 10step Video Signal Vin=1.0Vp-p, RL=75 100% White Video Signal Vin=1.0Vp-p, 3.58MHz, Sine Video Signal, RL=75 Active Non-active
0.3
sCONTROL TERMINAL PARAMETER Power Save STATUS H L OPEN Power Save: OFF Power Save: ON Power Save: ON NOTE
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NJM2571
sTEST CIRCUIT
0.1uF 10uF 6 V+ 5 GND 75 4 Vin 0.1uF input
NJM2571
Power Save 1 Vout 2 33uF Vsag 3 33uF
75 output 75
sAPPLICATION CIRCUIT
input 0.1uF 10uF 6 V+ 5 GND 75 4 Vin 0.1uF
NJM2571
Power Save 1 Vout 2 33uF Vsag 3 33uF
75 output
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NJM2571
sTERMINAL FUNCTION
PIN No.
PIN NAME
DC VOLTAGE
Power save
EQUIVALENT CIRCUIT
32K 48K
1
Power Save
-
V+
V+
2
Vout
0.26V
Vout
V+
V+
750
3
Vsag
-
Vsag
V+
V+
V+
4
Vin
1.10V
Vin
270
5 6
GND V
+
3V
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NJM2571
sTYPCAL CHARACTERISTICS
Voltage Gain vs. Frequency
20.0
Operating Current vs. Supply Voltage
14.0 12.0 10.0
0.0
Gv (dB)
Icc(mA)
6 7
-20.0
8.0 6.0
-40.0
-60.0
4.0 2.0 2.00
-80.0 5 10
10 Freq (Hz)
10
3.00
4.00
5.00 Vcc(V)
6.00
7.00
8.00
Operatibg Current at Standby State vs. Supply Voltage
120.0 100.0 80.0 60.0 40.0 20.0 2.00 3.00 4.00 5.00 Vcc(V) 6.00 7.00 8.00
Maxim Output Voltage Swing vs. Supply Voltage
6.0 5.0 4.0
Isave(uA)
Vom(Vpp)
3.0 2.0 1.0 0.0 2.00
3.00
4.00
5.00 6.00 Vcc(V)
7.00
8.00
Voltage Gain vs. Supply Voltage
10.0
1.0
Low Pass Fillter Characteristics vs. Supply Voltage Gfy4.5M
9.5
0.5 Gfy4.5M(dB)
3.00 4.00 5.00 Vcc(V) 6.00 7.00 8.00
Gv(dB)
9.0
0.0
8.5
-0.5
8.0 2.00
-1.0 2.00
3.00
4.00
5.00 6.00 Vcc(V)
7.00
8.00
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NJM2571
Low Pass Fillter Characteristics vs. Supply Voltage Gfy19M
-10.0
Differential Gain vs. Suplly Voltage
5.0
-20.0 Gfy19M(dB)
4.0
-40.0
DG(%)
3.00 4.00 5.00 Vcc(V) 6.00 7.00 8.00
-30.0
3.0
2.0
-50.0
1.0
-60.0 2.00
0.0 2.00
3.00
4.00
5.00 Vcc(V)
6.00
7.00
8.00
Differential Phase vs. Suplly Voltage
5.0 100.0 90.0 80.0 DP(deg) SNv(dB) 3.0 70.0 60.0 1.0 50.0
Signal to Noise Ratio vs. Supply Voltage
4.0
2.0
0.0 2.00
3.00
4.00
5.00 Vcc(V)
6.00
7.00
8.00
40.0 2.00
3.00
4.00
5.00 Vcc(V)
6.00
7.00
8.00
Second Harmonic Distotion vs. Supply Voltage
0.0 -20.0 -40.0 -60.0 -80.0 -100.0 -120.0 2.00
Switching Voltage vs. Supply Voltage
1.0
0.8
VthL(V)
3.00 4.00 5.00 Vcc(V) 6.00 7.00 8.00
Hv(dB)
0.6
0.4
0.2
0.0 2.00
3.00
4.00
5.00 6.00 Vcc(V)
7.00
8.00
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NJM2571
Switching Voltage vs. Supply Voltage
2.0 15.0
Operating Current vs. Temperature
1.5 VthH(V) Icc (mA) 1.0
10.0
5.0
0.5 2.00
3.00
4.00
5.00 Vcc(V)
6.00
7.00
8.00
0.0
-40
0
40 Temp (oC)
80
120
Operating Current at Standby State vs. Temperature
60.0 55.0 50.0 Vom (Vpp) Isave (uA) 45.0 40.0 35.0 30.0 25.0 20.0 -40 0 40 Temp ( C)
o
Maximum Output Voltage Swing vs. Temperature
5.0
4.0
3.0
2.0
1.0
80
120
0.0
-40
0
40 Temp ( C)
o
80
120
Voltage Gain vs. Temperature
11.0 10.5 10.0 Gv (dB) 9.5 9.0 8.5 8.0 7.5 7.0 -40 0 40 Temp (oC) 80 120
-1.0 -1.5 Gfy4.5M (dB) 0.5 0.0 -0.5 1.5 1.0
Low Pass Filter Characeristic vs. Temperature Gfy4.5M
-40
0
40 Temp (oC)
80
120
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NJM2571
Low Pass Filter Characeristic vs. Temperature Gfy19M Differential Gain vs. Temperature
5.0
0.0 -10.0 -20.0 Gfy19M (dB)
4.0
-40.0 -50.0 -60.0 -70.0 -40 0 40 Temp (oC) 80 120
DG (%)
-30.0
3.0
2.0
1.0
0.0
-40
0
40 Temp (oC)
80
120
Differential Phase vs. Temperature
5.0 100.0 90.0 80.0 SNv (dB) DP (%) 3.0 70.0 60.0 50.0 1.0 40.0 -40 0 40 Temp (oC) 80 120 30.0
Signal to Nise Ratio vs. Temperature
4.0
2.0
0.0
-40
0
40 Temp (oC)
80
120
Second Harmonic DIstotion vs.Temperature
0.0 -20.0 1.5 -40.0 Hv (dB) -60.0 -80.0 0.5 -100.0 -120.0 0.0 VthL (V) 1.0 2.0
Switchng Voltage vs. Temperature
-40
0
40 Temp ( C)
o
80
120
-40
0
40 Temp (oC)
80
120
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NJM2571
Switchng Voltage vs. Temperature
3.0 2.5 2.0 VthH (V) 1.5 1.0 0.5 0.0
-40
0
40 Temp (oC)
80
120
s APPLICATION
When you use a power save terminal more than by 4.0V, please put resistance of about 20k into a power save terminal. I n addition, power save terminal voltage (VthH) -- in the case of below 4.0V, resistance is not required Example)
q PS(VthH) 4.0V
q PS(VthH) < 4.0V
Power Save
PS
r VthH 4.0V r 20k
Power Save VthH < 4.0V V (VthH)
PS
V (VthH)
[CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights.
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