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參數(shù)資料
| 型號： | LM1203CN |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 3 CHANNEL, VIDEO AMPLIFIER, PDIP28 |
| 封裝： | PLASTIC, DIP-28 |
| 文件頁數(shù)： | 3/8頁 |
| 文件大小： | 188K |
| 代理商： | LM1203CN |
LM1203C
RGB VIDEO-AMPLIFIER SYSTEM
SLVS099B – NOVEMBER 1994 – REVISED FEBRUARY 1996
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics at 25
°C free-air temperature, CONTRAST = 6 V, CLAMP GATE = 0,
Vclamp(+) = 2 V, VCC1 = VCC2 = 12 V (see Figure 1) (unless otherwise noted)
PARAMETER
ALT SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
ICC
Supply current
VCC1 only
60
90
mA
Vref
Video input reference voltage
2.2
2.4
2.6
V
IIB
Video input bias current (any amplifier)
5
20
A
IIL
CLAMP GATE low input current
IIL(14)
CLAMP GATE = 0
– 0.5
–5
A
IIH
CLAMP GATE high input current
IIH(14)
CLAMP GATE = VCC
0.005
1
A
Clamp capacitor charge current
IK(chg)
R, G, or B CLAMP CAPS = 0
850
A
Clamp capacitor discharge current
IK(dschg)
R, G, or B CLAMP CAPS = 5 V
– 850
A
VOL
Low-level output voltage
R, G, or B CLAMP CAPS = 0
1.2
V
VOH
High-level output voltage
R, G, or B CLAMP CAPS = 5 V
8.9
V
VO(diff)
Output voltage difference between
VOdiff
Vclamp(+) = 2 V
±05
±50
mV
VO(diff)
g
any two channels
VOdiff
Vclamp(+) = 4 V
±0.5
±50
mV
operating characteristics at 25
°C free-air temperature, CLAMP GATE = 0 V,
R CLAMP(+) = G CLAMP(+) = B CLAMP(+) = 4 V, fI = 10 kHz (unless otherwise noted)
PARAMETER
ALT SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
AV(max) Maximum voltage amplification
AVMAX
CONTRAST = 12 V,
VI(PP) = 560 mV
7.8
V/V
AV(mid)
Mid-range voltage amplification
AVMID
CONTRAST = 5 V,
VI(PP) = 560 mV
2.5
V/V
Contrast voltage for minimum
amplification
V12low
VI(PP) = 1 V,
See Note 3
2
V
Amplification match at AV(max) AVMAX(DIFF)
CONTRAST = 12 V,
See Note 4
±0.2
dB
Amplification match at AV(mid)
AVMID(DIFF)
CONTRAST = 5 V,
See Note 3
±0.2
dB
Amplification match at AV(low)
AVLOW(DIFF)
CONTRAST = V12low,
See Notes 3 and 4
±0.2
dB
THD
Total harmonic distortion
CONTRAST = 3 V,
VI(PP) = 1 V
0.5%
BW
Amplifier bandwidth
BW(–3 dB)
CONTRAST = 12 V,
See Notes 5 and 7
70
MHz
Crosstalk attenuation
a
CONTRAST = 12 V,
See Note 6
f = 10 kHz,
60
dB
Crosstalk attenuation
ax
CONTRAST = 12 V,
See Notes 6 and 7
f = 10 MHz,
40
dB
NOTES:
3. Determine contrast voltage for minimum amplification for – 40-dB attenuation of output. Reference to AV maximum.
4. Measure gain difference between any two amplifiers, VI(PP) = 1 V.
5. Adjust input frequency from 10 kHz (AV maximum ref level) to the – 3-dB corner frequency (f – 3 dB). VI(PP) = 560 mV.
6. VI(PP) = 560 mV at f = 10 kHz to any amplifier. Measure output levels of the other two undriven amplifiers relative to driven amplifier
to determine channel separation. Terminate the undriven amplifier inputs to simulate generator loading. Repeat test at f = 10 MHz
for ax = 10 MHz.
7. A special text fixture without a socket is required.
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