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Details, datasheet, quote on part number:LM1203A
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Datasheet text preview:
LM1203, LM1203A RGB VIDEO AMPLIFIER SYSTEMS
SLFS048 MARCH 1990 REVISED OCTOBER 1991
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BW ( 3 dB) . . . 70 MHz Matched ±0.5-dB Attenuators for Contrast Control Three Externally-Gated Comparators for Brightness Control Independent Gain Control of Each Video Amplifier . . . AV = 4 to 10 Video Input Voltage Reference Low-Impedance Output Driver ESD Protection Exceeds 2000 V Per MIL Standard 833C, Method 3015 Designed to Be an Improved Replacement for National Semiconductor LM1203
VCC1 CONTRAST CAP CONTRAST CAP R VIDEO IN R CLAMP CAP G VIDEO IN GND G CLAMP CAP B VIDEO IN B CLAMP CAP REF CONTRAST VCC1 CLAMP GATE
N PACKAGE (T0P VIEW)
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
VCC1 R GAIN ADJUST R CLAMP() R VIDEO OUT R CLAMP(+) VCC2 G GAIN ADJUST G CLAMP() G VIDEO OUT G CLAMP(+) B GAIN ADJUST B CLAMP() B VIDEO OUT B CLAMP(+)
description
The LM1203 and LM1203A are wide-band video amplifier systems intended for high-resolution RGB color monitor applications. In addition to three matched video amplifiers, the LM1203 and LM1203A contain three gated differential input black-level clamp comparators for brightness control and three matched attenuator circuits for contrast control. Each video amplifier contains a gain set for adjusting maximum system gain (AV = 4 to 10) as well as providing trim capability. The LM1203 and LM1203A also contain a voltage reference for the video inputs. The LM1203 and LM1203A are characterized for operation from 0°C to 70°C.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. POST OFFICE BOX 655303
Copyright © 1991, Texas Instruments Incorporated
· DALLAS, TEXAS 75265
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LM1203, LM1203A RGB VIDEO AMPLIFIER SYSTEMS
SLFS048 MARCH 1990 REVISED OCTOBER 1991
functional block diagram
VCC1 CONTRAST CAP CONTRAST CAP R VIDEO IN 1 2 3 4 RED 1 k + 100 40 25 R VIDEO OUT 27 R GAIN ADJUST 26 R CLAMP() 24 R CLAMP(+) 23 V CC2 40 20 G VIDEO OUT 22 G GAIN ADJUST 21 G CLAMP() 19 G CLAMP(+) 40 16 B VIDEO OUT 18 B GAIN ADJUST 17 B CLAMP() 15 B CLAMP(+) 28 V CC1
R CLAMP CAP 5
GREEN G VIDEO IN 6 G CLAMP 8 CAP 7 GND BLUE B VIDEO IN B CLAMP 10 CAP REF 9
1 k + 100
1 k + 100
11 2.4 V Contrast ref Control 12 CONTRAST 13 VCC1 1.4 V 14 CLAMP GATE
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage, VCC (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.5 V Input voltage range, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VCC VI GND Video output current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 mA Total power dissipation at (or below) 25°C free-air temperature (see Note 2) . . . . . . . . . . . . . . . . . . . . . 2.5 W Operating junction temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Operating free-air temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C
NOTES: 1. All VCC pins must be externally wired together to prevent internal damage during VCC power-on/off cycles. 2. For operating above 25°C free-air temperature, derate linearly at the rate of 20 mW/°C.
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POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
LM1203, LM1203A RGB VIDEO AMPLIFIER SYSTEMS
SLFS048 MARCH 1990 REVISED OCTOBER 1991
electrical characteristics at 25°C free-air temperature, V12 = 6 V, V14 = 0, V15 = 2 V, = VCC2 = 12 V (see Figure 1) (unless otherwise noted)
PARAMETER ICC Vref IIB VIL(14) VIH(14) IIL(14) IIH(14) IK(chg) IK(dschg) VOL VOH VOdiff Supply current Video input reference voltage Video input bias current Clamp gate low-level input voltage Clamp gate high-level input voltage Clamp gate low input current Clamp gate high input current Clamp capacitor charge current Clamp capacitor discharge current Low-level output voltage High-level output voltage Output voltage difference between any two channels Any amplifier Clamp comparators on Clamp comparators off V14 = 0 V14 = VCC V5,8 or 10 = 0 V5,8 or 10 = 5 V V5,8 or 10 = 0 V5,8 or 10 = 5 V V15 = 2 V V15 = 4 V 0.8 TEST CONDITIONS VCC1 only 2.2 MIN TYP 60 2.4 5 1.2 1.6 0.5 0.005 850 850 1.2 8.9 ± 0.5 ± 50 2 5 1 MAX 90 2.6 20
VCC1
UNIT mA V µA V V µA µA µA µA V V mV
operating characteristics at 25°C free-air temperature, V14 = 0 V, V15 = 4 V, fin = 10 kHz (unless otherwise noted)
PARAMETER AVmax AVmid V12low AVmax(diff) AVmid(diff) AVlow(diff) THD BW( 3 dB) ax NOTES: 3. 4. 5. 6. Maximum voltage amplification Mid-range voltage amplification Contrast voltage for minimum amplification Amplification match at AV max Amplification match at AV mid Amplification match at AV low Total harmonic distortion Amplifier bandwidth Crosstalk attenuation V12 = 12 V, V12 = 5 V, VI(PP) = 1 V, V12 = 12 V, V12 = 5 V, V12 = V12low, V12 = 3 V, V12 = 12 V, V12 = 12 V, TEST CONDITIONS VI(PP) = 560 mV VI(PP) = 560 mV See Note 3 See Note 4 See Note 3 See Notes 3 and 4 VI(PP) = 1 V See Notes 5 and 7 f = 10 kHz, See Note 6 LM1203 LM1203A LM1203 LM1203A MIN TYP 8.8 7.8 3.5 2.5 2 ±0.2 ±0.2 ±0.2 0.5 70 60 40 dB MAX UNIT V/V V/V V dB dB dB % MHz
V12 = 12 V, f = 10 MHz, See Notes 6 and 7
Determine V12low for 40-dB attenuation of output. Reference to AV maximum. Measure gain difference between any two amplifiers, VI(PP) = 1 V. Adjust input frequency from 10 kHz (AV maximum ref level) to the 3-dB corner frequency (f 3 dB). VI(PP) = 560 mV. 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.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
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