TLS1215 TI | Alldatasheet

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WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 Copyright  1995, Texas Instruments Incorporated 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

  • 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

The TLS1215 is a wide-band video preamplifier system intended for high-resolution RGB (red-green-blue) color monitors with blanking control features. Each video amplifier (R, G, and 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 CONTRAST CAP1 CONTRAST CAP2 BLANK GATE CLAMP GATE CONTRAST B CLAMP CAP B GAIN ADJUST B VIDEO IN G CLAMP CAP G GAIN ADJUST G VIDEO IN R CLAMP CAP R GAIN ADJUST R VIDEO IN VCC2 R VIDEO OUT R CLAMP(+) G VIDEO OUT G CLAMP(+) B VIDEO OUT B CLAMP(+) VCC1 GND 3, 11, 22, 25 7, 21, 24 Contrast 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. 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 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 N PACKAGE (TOP VIEW) 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.

WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995

2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

absolute maximum ratings over operating free-air temperature range (unless otherwise noted)† † 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 MIN NOM MAX UNIT Supply voltage, VCC1 and VCC2 10.8 12 13.2 V High-level input voltage, CLAMP GATE, VIH Clamp comparators off 2.4 5 V 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 Operating free-air temperature, TA 0 70 °C 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 ALT SYMBOL TEST CONDITIONS MIN TYP MAX UNIT ICC Supply current VCC1 + VCC2 78 90 100 mA Vref Video input reference voltage Measure R, G, B VIDEO IN 2.1 2.3 2.6 V II Contrast, R, G, B gain adjust input current II Measure CONTRAST and B, G, R GAIN ADJUST –1 –2.5 µA IIL Clamp gate low input current CLAMP GATE = 0 V –1 –2.5 µA IIH Clamp gate high input current CLAMP GATE = 5 V 0.03 1 µA Clamp capacitor charge current IK(chg) R, G, B CLAMP CAP = 0 V –850 µA Clamp capacitor discharge current IK(dschg) R, G, B CLAMP CAP = 5 V +850 µA VOL Low-level output voltage R, G, B CLAMP CAP = 0 V 0.3 V VOH High-level output voltage R, G, B CLAMP CAP = 5 V 7.8 V VO(blanked) Blanked output voltage Blanking circuit active 0.2 V VO(diff) Output voltage difference VOdiff Between any two channels ± 0.5 ± 50 mV

WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995 3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 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 mini- mum 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 = V CONTRASTLOW , See Notes 3 and 4 ± 0.2 dB THD Total harmonic distortionTHD CONTRAST = 1 V, V I(PP) = 1 V 1.0% BW Amplifier bandwidth BW(–3 dB) CONTRAST = 4 V, See Notes 5 and 7 100 MHz Crosstalk attenuation a CONTRAST = 4 V, f = 10 kHz, See Note 6 80 dB Crosstalk attenuation ax CONTRAST = 4 V, f = 10 MHz, See Notes 6 or 7 40 dB Pulse test Tr, video Tf, video VO(PP) = 4 V, CONTRAST = 4 V, Clamp(+) = 2 V, See Notes 5 and 7 4 nsPulse test Tr, blank Tf, blank CONTRAST = 4 V , Clamp(+) = 2 V, See Notes 5 and 7 ns NOTES: 3. Determine VCONTRASTLOW 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) = 700 mV. 6. VI(PP) = 700 mV at f = 10 kHz to any amplifier. Measure output levels of the other two undriven amplifiers relative to driven amplifier. 7. A special text fixture without a socket and a double-sided full-ground-plane PC board are required.

WIDE-BAND VIDEO PREAMPLIFIER SYSTEM WITH BLANKING SLVS096A – OCTOBER 1995

4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

APPLICATION INFORMATION

R CLAMP(+) R VIDEO OUT VCC1 GND VCC2 GND G VIDEO OUT G CLAMP(+) G GAIN ADJUST B VIDEO OUT B CLAMP(+) B GAIN ADJUST 4 V 4 V 4 V 4 V 4 V 4 V To Blue Cascode Driver To Green Cascode Drive To Red Cascode Driver 390 Ω 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF 0.1 µF 390 Ω 390 Ω 75 Ω 0.1 µF 10 µF 75 Ω 0.1 µF 10 µF 0.1 µF 75 Ω 0.1 µF 10 µF 4 V 0.1 µF 0.1 µF 0.1 µF CLAMP GATE BLANK GATE Red Video In Green Video In Blue Video In R GAIN ADJUST VCC1 VCC1 12 V Figure 1. Test/Application Circuit Figure 2. Test/Application Circuit Timing Diagram

Orderable Device Status(1) Package Type Package Drawing Pins Package Qty Eco Plan(2) Lead/Ball FinishMSL Peak Temp (3) TLS1215N OBSOLETE PDIP N 28 TBD Call TI 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. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS) or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontentfor the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS):TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Green (RoHS & no Sb/Br):TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. PACKAGE OPTION ADDENDUM www.ti.com 30-Mar-2005 Addendum-Page 1

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