TLS1215 WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 • • • • • • Wide Bandwidth . . . Typ 100 MHz at – 3 dB 0-V to 4-V Digital Level-Contrast Control Voltage Range 0-V to 4-V Digital Level-Gain Adjust Control Voltage Range Individual Gain Adjust for Video Amplifiers Output-Stage Blanking Fewer Peripheral Components Required Than for Competitive Systems description N PACKAGE (TOP VIEW) CONTRAST CAP1 CONTRAST CAP2 VCC1 R VIDEO IN R CLAMP CAP G VIDEO IN GND G CLAMP CAP B VIDEO IN B CLAMP CAP VCC1 CONTRAST BLANK GATE CLAMP GATE 1 28 2 27 3 26 4 25 5 24 6 23 7 22 8 21 9 20 10 19 R GAIN ADJUST R CLAMP(+) R VIDEO OUT VCC1 GND VCC2 VCC1 GND G VIDEO OUT G CLAMP(+) G GAIN ADJUST B VIDEO OUT B CLAMP(+) B GAIN ADJUST The TLS1215 is a wide-band video preamplifier 11 18 system intended for high-resolution RGB 12 17 (red-green-blue) color monitors with blanking 13 16 control features. Each video amplifier (R, G, and 14 15 B) contains a gain set for adjusting maximum system gain. The TLS1215 provides digital level-operated contrast, brightness, and gain adjustment. All the control inputs offer high input impedance and an operation range from 0 V to 4 V for easy interface to the serial digital buses. The TLS1215 also contains a blanking circuit, which clamps the video output voltage during blanking period to as low as 0.2 V above ground. The device operates from a 12-V supply. The TLS1215 is characterized for operation from 0°C to 70°C. functional block diagram R VIDEO IN R CLAMP CAP R GAIN ADJUST 4 23 A1 A2 26 5 G CLAMP CAP G GAIN ADJUST 6 8 A2 20 18 B CLAMP CAP B GAIN ADJUST CONTRAST CONTRAST CAP1 CONTRAST CAP2 CLAMP GATE BLANK GATE 9 G VIDEO OUT G CLAMP(+) A1 10 A2 17 15 12 R CLAMP(+) A1 19 B VIDEO IN R VIDEO OUT 28 27 G VIDEO IN VCC2 Contrast 16 1 2 14 13 3, 11, 22, 25 7, 21, 24 B VIDEO OUT B CLAMP(+) VCC1 GND Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. Copyright 1995, Texas Instruments Incorporated 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 • DALLAS, TEXAS 75265 1 TLS1215 WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† Supply voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.5 V Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 V to VCC Video output current (per channel) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 mA Total power dissipation at (or below) 25°C free-air temperature (see Note 2) . . . . . . . . . . . . . . . . . . . . . 2.1 W Operating virtual junction temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150°C Operating free-air temperature range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 65°C to 150°C Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°C † Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. All VCC pins must be externally wired together to prevent internal damage during VCC power-on/off cycles. 2. For operation above 25°C free-air temperature, derate linearly to 1.5 W at the rate of 13 mW/°C. recommended operating conditions Supply voltage, VCC1 and VCC2 MIN NOM MAX UNIT 10.8 12 13.2 V 2.4 5 V High-level input voltage, CLAMP GATE, VIH Clamp comparators off Low-level input voltage, CLAMP GATE, VIL Clamp comparators on 0 0.8 V High-level input voltage, BLANK GATE, VIH Blanking circuit inactive 2.4 5 V Low-level input voltage, BLANK GATE, VIL Blanking circuit active 0 0.8 V 0 70 °C Operating free-air temperature, TA electrical characteristics at 25°C operating free-air temperature range, CLAMP GATE = 0 V, BLANK GATE = 4 V, CLAMP(+) = 2 V, CONTRAST = R, G, B GAIN ADJUST = 4 V, VCC1 = VCC2 = 12 V (see Figure 2) (unless otherwise noted) PARAMETER ICC Vref II IIL IIH ALT SYMBOL Supply current TEST CONDITIONS Video input reference voltage VCC1 + VCC2 Measure R, G, B VIDEO IN Contrast, R, G, B gain adjust input current Measure CONTRAST and B, G, R GAIN ADJUST II MIN TYP MAX UNIT 78 90 100 mA 2.1 2.3 2.6 V –1 – 2.5 µA Clamp gate low input current CLAMP GATE = 0 V –1 – 2.5 µA Clamp gate high input current CLAMP GATE = 5 V 0.03 1 µA Clamp capacitor charge current Clamp capacitor discharge current IK(chg) IK(dschg) R, G, B CLAMP CAP = 0 V – 850 µA R, G, B CLAMP CAP = 5 V + 850 µA VOL VOH Low-level output voltage R, G, B CLAMP CAP = 0 V 0.3 V High-level output voltage R, G, B CLAMP CAP = 5 V 7.8 V VO(blanked) VO(diff) Blanked output voltage Blanking circuit active 0.2 V 2 Output voltage difference VOdiff POST OFFICE BOX 655303 Between any two channels • DALLAS, TEXAS 75265 ± 0.5 ± 50 mV TLS1215 WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 operating characteristics at 25°C free-air temperature range, CLAMP GATE = 0 V, BLANK GATE = 4 V, CLAMP(+) = 4 V, CONTRAST = R, G, B GAIN ADJUST = 4 V, fI = 10 kHz (unless otherwise noted) PARAMETER ALT SYMBOL TEST CONDITIONS MIN TYP MAX UNIT AV(max) Maximum voltage amplification AVMAX CONTRAST = 4 V, VI(PP) = 700 mV 7.8 V/ V AV(mid) Mid-range voltage amplification AVMID CONTRAST = 2 V, VI(PP) = 700 mV 2 V/ V Contrast voltage for minimum amplification VCONTRASTLOW VI(PP) = 1 V, See Note 3 1 V Amplification match at AV(max) AVMAX(DIFF) CONTRAST = 4 V, See Note 4 ± 0.2 dB Amplification match at AV(mid) AVMID(DIFF) CONTRAST = 2 V, See Note 3 ± 0.2 dB Amplification match at AV(low) AVLOW(DIFF) CONTRAST = VCONTRASTLOW, See Notes 3 and 4 ± 0.2 dB THD Total harmonic distortion THD 1.0% BW Amplifier bandwidth BW(– 3 dB) CONTRAST = 1 V, VI(PP) = 1 V CONTRAST = 4 V, See Notes 5 and 7 Crosstalk attenuation Pulse test NOTES: 3. 4. 5. 6. 7. ax 100 MHz CONTRAST = 4 V, f = 10 kHz, See Note 6 80 dB CONTRAST = 4 V, f = 10 MHz, See Notes 6 or 7 40 dB Tr, video Tf, video VO(PP) = 4 V, Clamp(+) = 2 V, CONTRAST = 4 V, See Notes 5 and 7 Tr, blank Tf, blank CONTRAST = 4 V , Clamp(+) = 2 V, See Notes 5 and 7 4 ns 7 Determine VCONTRASTLOW 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) = 700 mV. VI(PP) = 700 mV at f = 10 kHz to any amplifier. Measure output levels of the other two undriven amplifiers relative to driven amplifier. A special text fixture without a socket and a double-sided full-ground-plane PC board are required. POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 3 TLS1215 WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 APPLICATION INFORMATION 4V 1 CONTRAST CAP 1 R GAIN ADJUST 0.1 µF 2 CONTRAST CAP 2 3 Red Video In R CLAMP(+) VCC1 R VIDEO OUT 4 5 10 µF VCC1 R VIDEO IN 0.1 µF 6 GND R CLAMP CAP G VIDEO IN VCC2 GND VCC1 75 Ω 7 10 µF 8 Blue Video In 0.1 µF To Red Cascode Driver 26 390 Ω 0.1 µF 0.1 µF 4V 27 0.1 µF 75 Ω Green Video In 28 0.1 µF 9 GND G CLAMP CAP G VIDEO OUT B VIDEO IN 25 0.1 µF 24 23 0.1 µF 22 0.1 µF 21 To Green Cascode Drive 20 75 Ω 4V 10 10 µF G CLAMP(+) B CLAMP CAP 0.1 µF 0.1 µF 11 VCC1 G GAIN ADJUST 4V 18 0.1 µF 4V 12 B VIDEO OUT CONTRAST To Blue Cascode Driver 17 0.1 µF BLANK GATE CLAMP GATE 4V 13 14 B CLAMP(+) BLANK GATE CLAMP GATE B GAIN ADJUST 16 0.1 µF 4V 15 0.1 µF 12 V Figure 1. Test /Application Circuit Video CLAMP GATE † BLANK GATE † Minimum CLAMP GATE pulse: 300 ns Figure 2. Test/Application Circuit Timing Diagram 4 390 Ω 19 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 390 Ω PACKAGE OPTION ADDENDUM www.ti.com 30-Mar-2005 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing TLS1215N OBSOLETE PDIP N Pins Package Eco Plan (2) Qty 28 TBD Lead/Ball Finish Call TI MSL Peak Temp (3) Call TI (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs. LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. 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