NE5539 Datasheet, PDF (9/14 Pages) NXP Semiconductors – High frequency operational amplifier

Philips Semiconductors
High frequency operational amplifier
Product data
NE/SE5539
NE5539 COLOR VIDEO AMPLIFIER
The NE5539 wideband operational amplifier is easily adapted for
use as a color video amplifier. A typical circuit is shown in Figure 7
along with vector-scope1 photographs showing the amplifier
differential gain and phase response to a standard five-step
modulated staircase linearity signal (Figures 8, 9 and 10). As can be
seen in Figure 9, the gain varies less than 0.5% from the bottom to
the top of the staircase. The maximum differential phase shown in
Figure 10 is approximately +0.1°.
The amplifier circuit was optimized for a 75 Ω input and output
termination impedance with a gain of approximately 10 (20 dB).
NOTE:
1. The input signal was 200 mV and the output 2 V. V_CC was ±8 V.
750
75
—V
22nF
—
14
1
6dB LOSS—1
10
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V_IN
8
3
Z_O = 75Ω
75
Figure 9. Differential Gain <0.5%
17
+
470
75
NOTE:
75
Instruments used for these measurements were Tektronix 146
NTSC test signal generator, 520A NTSC vectorscope, and 1480
—V _22nF
—V
waveform monitor.
Figure 7. NE5539 Video Amplifier
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Figure 8. Input Signal
2002 Jan 25
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9