LT6558 550MHz, 2200V/µs Gain of 1, Single Supply Triple Video Amplifier with Input Bias Control FEATURES ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ DESCRIPTION –3dB Small-Signal Bandwidth: 550MHz –3dB 2VP-P Large-Signal Bandwidth: 400MHz Slew Rate: 2200V/µs Fixed Gain of 1, No External Resistors Required AC Coupling with Programmable DC Input Bias Output Swings to 0.8V of Supply Rails Full Video Swing with 5V Single Supply Differential Gain: 0.02% Differential Phase: 0.02° Enable/Shutdown Pin High Output Current: ±90mA Supply Range: 3V to 7.5V Operating Temperature Range: –40°C to 85°C Available in 16-Lead SSOP and 5mm × 3mm DFN Packages APPLICATIONS ■ ■ ■ ■ The LT®6558 is a high speed triple video amplifier with an internal fixed gain of 1 and a programmable DC input bias voltage. This amplifier features a 400MHz 2VP-P signal bandwidth, 2200V/µs slew rate and a unique ability to drive heavy output loads to 0.8V of the supply rails, making the LT6558 ideal for a single 5V supply, wideband video application. With just one resistor, the inputs of all three amplifiers can be programmed to a common voltage level, simplifying and reducing the need for external circuitry in AC-coupled applications. Without the programming resistor, the input bias circuit becomes inactive, allowing the use of an external clamp circuit or direct coupled input. The LT6558 has separate power supply and ground pins for each amplifier to improve channel separation and to ease power supply bypassing. The LT6558 provides uncompromised performance in many high speed applications where a low voltage, single supply is required. The LT6558 is available in 16-lead SSOP and 5mm × 3mm DFN packages. LCD Video Projectors RGB HD Video Amplifiers Coaxial Cable Drivers Low Supply ADC Drivers , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION AC-Coupled Triple Video Driver BCV EN GND LT6558 V+ Fast Large-Signal Transient Response 5V 158Ω 5 22µF IN R + – 220µF OUT R 4 V+ R GND R 5V 22µF IN G IN G + – 220µF OUT G V+ G GND G RL* 5V 22µF IN B IN B GND B + – VS = 5V VIN = 2VP-P RL = 150Ω RL* OUTPUT (V) IN R 3 2 1 0 –10 –8 –6 –4 –2 0 2 TIME (ns) 220µF OUT B 4 6 8 10 6558 TA01b V+ B 5V RL* 6558 TA01a *50Ω OR GREATER FOR RL 6558f 1 LT6558 ABSOLUTE MAXIMUM RATINGS (Note 1) Total Supply Voltage (VS+ to GND) ...........................7.5V Input Current........................................................±10mA Output Current (Note 2) .......................................±90mA Output Short-Circuit Duration (Note 2) ............ Indefinite Operating Temperature Range (Note 3) ... –40°C to 85°C Specified Temperature Range (Note 4) .... –40°C to 85°C Junction Temperature SSOP ................................................................ 150°C DFN................................................................... 125°C Storage Temperature Range SSOP ................................................. –65°C to 150°C DFN.................................................... –65°C to 125°C Lead Temperature (Soldering, 10 sec) SSOP ................................................................ 300°C PACKAGE/ORDER INFORMATION TOP VIEW TOP VIEW EN 1 GND 2 IN R 3 GND R 4 IN G 5 GND G 6 IN B 7 GND B 16 BCV G = +1 15 V+ 14 OUT R G = +1 13 V+ R 12 OUT G G = +1 8 11 V+ G 10 OUT B 9 V+ B EN 1 GND 2 IN R 3 GND R 4 16 BCV 17 G = +1 15 V+ 14 OUT R G = +1 13 V+ R 12 OUT G IN G 5 GND G 6 IN B 7 10 OUT B GND B 8 9 G = +1 11 V+ G V+ B DHC PACKAGE 16-LEAD (5mm × 3mm) PLASTIC DFN TJMAX = 125°C, θJA = 40°C/W EXPOSED PAD (PIN 17) IS GND, MUST BE SOLDERED TO PCB GN PACKAGE 16-LEAD PLASTIC SSOP TJMAX = 150°C, θJA = 110°C/W ORDER PART NUMBER GN PART MARKING ORDER PART NUMBER DHC PART MARKING* LT6558CGN LT6558IGN 6558 6558I LT6558CDHC LT6558IDHC 6558 6558 Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V, RL = 150Ω to VS/2, VEN = 0.4V, RBCV = open, unless otherwise noted. SYMBOL PARAMETER CONDITIONS VOS Input Offset Voltage VIN = 2.5V IIN Input Current RIN Input Resistance CIN Input Capacitance VIN = 2.5V VIN = 2V to 3V, BCV (Pin 16) Open f = 1MHz MIN TYP MAX ● 12 15 45 55 mV mV ● 35 45 70 100 µA µA ● 200 150 UNITS 450 400 kΩ kΩ 1.4 pF 6558f 2 LT6558 ELECTRICAL CHARACTERISTICS The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 5V, RL = 150Ω to VS/2, VEN = 0.4V, RBCV = open, unless otherwise noted. SYMBOL PARAMETER CONDITIONS AV ERR Gain Error VIN = 1.5V to 3.5V AV MATCH Gain Match Between Channels VIN(DC) Input Voltage Bias PSRR Power Supply Rejection Ratio VOL Output Voltage Swing Low VOH Output Voltage Swing High IS Supply Current per Amplifier MIN VIN = 1.5V to 3.5V RBCV = 158Ω VS = 4V to 6V, VIN = 1.25V TYP MAX UNITS ● ±0.7 ±0.9 ±2.0 ±2.5 % % ● ±0.02 ±0.05 ±1.5 ±2.5 % % 3 3.5 V V ● 2.0 1.5 2.5 2.8 ● 42 38 50 47 0.8 0.9 ● ● Total Supply Current (Disabled) VEN = 0.4V, RL = ∞, Includes IS of V+ (Pin 15) VEN = Open, RL = ∞ IEN Enable Pin Current ISC Short-Circuit Current SR Slew Rate VOUT = 1.25V to 3.75V (Note 5) –3dB BW –3dB Bandwidth VEN = 0.4V 4.1 4.0 dB dB 0.9 1.0 4.2 4.1 V V V V ● 22.5 25.0 24 28 mA mA ● 10 10 450 1000 µA µA ● –250 –300 –125 –150 µA µA ● ±60 ±40 ±90 ±80 mA mA 1200 2200 V/µs VOUT = 2VP-P 400 MHz VOUT = 0.2VP-P 550 MHz 100 MHz 350 MHz 0.1dB BW Gain Flatness ±0.1dB Bandwidth VOUT = 2VP-P FPBW Full Power Bandwidth VOUT = 2VP-P (Note 6) XTalk All Hostile Crosstalk f = 10MHz, VOUT = 2VP-P f = 100MHz, VOUT = 2VP-P –80 –55 dB dB tS Settling Time To 1%, VOUT = 1.5V to 3.5V To 0.1% 4 7 ns ns tr, tf Rise Time, Fall Time 10% to 90%, VOUT = 1.5V to 3.5V 875 ps ΔG Differential Gain NTSC Signal 0.02 % ΔΦ Differential Phase NTSC Signal 0.02 Deg HD2 2nd Harmonic Distortion f = 10MHz, VOUT = 2VP-P –75 dBc HD3 3rd Harmonic Distortion f = 10MHz, VOUT = 2VP-P –79 dBc Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: A heat sink may be required to keep the junction temperature below the Absolute Maximum Rating. Note 3: The LT6558C is guaranteed functional over the temperature range of –40°C and 85°C. Note 4: The LT6558C is guaranteed to meet specified performance from 0°C to 70°C. The LT6558C is designed, characterized and expected to 190 meet specified performance from –40°C to 85°C but is not tested or QA sampled at these temperatures.The LT6558I is guaranteed to meet specified performance from –40°C to 85°C. Note 5: Slew rate is 100% production tested on the R channel and measured on the rising edge of the output signal. The slew rate of the falling edge and of the G and B channels is guaranteed through design and characterization. Note 6: Large-signal bandwidth is calculated from slew rate: FPBW = SR/(π • VP-P) 6558f 3 LT6558 TYPICAL PERFORMANCE CHARACTERISTICS Gain Error Distribution Gain Error Matching Distribution 60 VS = 5V ∆VOUT = 2V 60 R = 150Ω L 40 30 20 10 1.01 50 40 30 0.97 10 0.96 Supply Current per Amplifier vs Temperature VOUT = VS/2 40 40 30 30 20 15 10 5 SUPPLY CURRENT (mA) SUPPLY CURRENT (mA) 25 100 125 Supply Current per Amplifier vs EN Voltage VS = 5V VOUT = VS/2 VS = 5V 35 VOUT = VS/2 VEN = 0V 30 25 0 50 75 TEMPERATURE (°C) 6558 G03 35 SUPPLY CURRENT (mA) 0.95 –50 –25 –0.2 –0.1 0 0.1 0.2 0.3 GAIN ERROR, BETWEEN CHANNELS (%) 6558 G02 Supply Current per Amplifier vs Supply Voltage 25 20 15 10 TA = 125°C TA = 25°C 20 TA = –55°C 10 5 0 0 1 2 3 4 5 6 SUPPLY VOLTAGE (V) 0 –50 7 0 –25 0 25 50 75 TEMPERATURE (°C) 6558 G04 40 –20 35 OFFSET VOTLAGE (mV) TA = 125°C TA = 25°C –60 –80 TA = –55°C –100 –120 –140 0 1 4 2 3 ENABLE PIN VOLTAGE (V) 5 6558 G07 4 2 3 ENABLE PIN VOLTAGE (V) 400 VS = 5V VIN = 2.5V VS = 5V 300 30 25 20 15 10 0 –50 5 Input Bias Current vs Input Voltage 200 TA = 25°C TA = 125°C 100 0 TA = –55°C –100 –200 –300 5 –160 1 6558 G06 Offset Voltage vs Temperature VS = 5V –40 0 125 INPUT BIAS CURRENT (µA) 0 100 6558 G05 EN Pin Current vs EN Pin Voltage ENABLE PIN CURRENT (µA) 0.99 0.98 6558 G01 40 1.00 20 0 –0.3 –0.5 –0.9 –0.8 –0.7 –0.6 GAIN ERROR, INDIVIDUAL CHANNEL (%) VS = 5V VOUT = 2VP-P RLOAD = 150Ω 1.02 GAIN (V) PERCENT OF UNITS (%) PERCENT OF UNITS (%) VS = 5V ∆VOUT = 2V 50 RL = 150Ω 0 –1.0 Voltage Gain vs Temperature 1.03 70 –400 –25 50 0 25 75 TEMPERATURE (°C) 100 125 6558 G08 0 1 2 3 INPUT VOLTAGE (V) 4 5 6558 G09 6558f 4 LT6558 TYPICAL PERFORMANCE CHARACTERISTICS Output Voltage Swing vs Load Current (Output High) 5 5.0 VS = 5V RLOAD = 150Ω TO VS/2 OUTPUT VOLTAGE SWING (V) OUTPUT VOLTAGE (V) TA = 25°C TA = –55°C 3 2 1 0 0 1 2 3 INPUT VOLTAGE (V) 4 2.5 VS = 5V VIN = 4.5V TA = 125°C 4 4.5 TA = 125°C 4.0 TA = 25°C TA = –55°C 3.5 3.0 0 1.5 TA = 25°C TA = 125°C 0.5 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (mA) 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (mA) 6558 G12 Bias Control Voltage vs Temperature 80 5.0 VS = 5V VS = 5V RBCV = 158Ω BIAS CONTROL VOLTAGE (mV) 4.5 4.0 INPUT VOLTAGE (V) 2.0 TA = –55°C 1.0 Input Bias Voltage vs Temperature 3.0 INPUT VOLTAGE (V) 2.0 6558 G11 Input Bias Voltage vs Resistance at BCV Pin 2.5 VS = 5V VIN = 0V 0 2.5 5 6558 G10 3.5 Output Voltage Swing vs Load Current (Output Low) OUTPUT VOLTAGE SWING (V) Output Voltage vs Input Voltage 3.5 3.0 2.5 2.0 1.5 1.0 1.5 VS = 5V RBCV = 158Ω 70 60 50 40 30 0.5 1.0 120 140 160 180 200 220 BVC-RESISTANCE (Ω) 240 0 –50 –25 260 0 50 25 75 TEMPERATURE (°C) 100 6558 G13 3 VOUT = 200mVP-P 2 GAIN (dB) 1 0 VOUT = 2VP-P –1 0.2 1 0.1 0 –1 –2 –3 –3 –4 –4 10 100 FREQUENCY (MHz) 1000 6558 G16 0 –0.1 –0.2 –0.3 IN-R IN-G IN-B –5 1 VS = 5V 0.4 VOUT = 2VP-P RL = 150Ω 0.3 2 –2 –5 Gain Flatness vs Frequency VS = 5V VOUT = 2VP-P RL = 150Ω 4 125 0.5 GAIN (dB) 3 GAIN (dB) 5 100 6558 G15 Frequency Response of Three Amplifiers VS = 5V RL = 150Ω 4 0 50 25 75 TEMPERATURE (°C) 6558 G14 Frequency Response 5 20 –50 –25 125 1 IN-R IN-G IN-B –0.4 –0.5 10 100 FREQUENCY (MHz) 1000 6558 G17 1 10 100 FREQUENCY (MHz) 1000 6558 G18 6558f 5 LT6558 TYPICAL PERFORMANCE CHARACTERISTICS Frequency Response with Capacitive Loads 5 2.00 DELAY (ns) 1 0 CL = 0pF –1 VS = 5V –40 VOUT = 2VP-P RL = 150Ω –50 1.50 CL = 4.7pF 2 GAIN (dB) 1.75 CL = 8.2pF –30 VS = 5V VOUT = 2VP-P RL = 150Ω AMPLITUDE (dB) VS = 5V 4 VOUT = 200mVP-P RL = 150Ω 3 Crosstalk Between Amplifiers vs Frequency Large-Signal Group Delay 1.25 1.00 0.75 RBCV = 158Ω –2 –80 –90 –4 0.25 –100 –5 0 –110 10 100 FREQUENCY (MHz) 1 1000 10 100 FREQUENCY (MHz) 1 1000000 100000 1000 100 10 1 0.1 0.01 60 VS = 5V 10000 RBCV = 158Ω 1000 1 10 FREQUENCY (MHz) 100 1000 100 0.01 0.1 1 10 FREQUENCY (MHz) 100 6558 G22 30 20 0 0.001 1000 Distortion vs Frequency DISTORTION (dBc) 30 40 50 60 HD2 40 50 60 70 80 100 110 110 0.1 1 10 FREQUENCY (MHz) HD2 90 HD3 100 120 0.01 100 Distortion vs Frequency 30 90 10 0 VS = 5V 10 V OUT = 1VP-P 20 RL = 150Ω 80 0.1 1 FREQUENCY (MHz) 6558 G24 VS = 5V 10 V OUT = 2VP-P 20 RL = 150Ω 70 0.01 6558 G23 0 DISTORTION (dBc) 40 10 ENABLE 0.1 VS = 5V 50 100000 REJECTION RATIO (dB) INPUT IMPEDANCE (Ω) 10000 1000 Power Supply Rejection Ratio vs Frequency RBCV = OPEN DISABLE 10 100 FREQUENCY (MHz) 6558 G21 Input Impedance vs Frequency VS = 5V R TO G B TO G 6558 G20 Output Impedance vs Frequency 1000000 TYPICAL CHANNEL TO CHANNEL 1 1000 6558 G19 OUTPUT IMPEDANCE (Ω) –70 0.50 –3 WORST CASE CHANNEL TO CHANNEL –60 100 6558 G25 120 0.01 HD3 0.1 1 10 FREQUENCY (MHz) 100 6558 G26 6558f 6 LT6558 TYPICAL PERFORMANCE CHARACTERISTICS Enable/Disable Response Input Noise Spectral Density VS = 5V VIN = 2.5V VEN(DISABLE) 100 en 10 10 5 VS = 5V VOUT = 2VP-P RL = 150Ω 4 VOLTAGE (V) +in 100 6 1000 INPUT CURRENT NOISE (pA/√Hz) INPUT VOLTAGE NOISE (nV/√Hz) 1000 3 VOUT 2 1 0 VEN(ENABLE) 1 0.01 0.1 1 10 FREQUENCY (kHz) –1 0 100 0 0.4 0.8 6558 G27 VS = 5V VIN = 100mVP-P RL = 150Ω 2.60 OUTPUT (V) OUTPUT (V) 2.4 2.6 Small-Signal Transient Response 2.65 VS = 5V VIN = 2VP-P RL = 150Ω 4 2.0 6558 G28 Large-Signal Transient Response 5 1.6 1.2 TIME (µs) 3 2 2.55 2.50 1 2.45 0 0 2 4 6 8 10 12 14 16 18 20 TIME (ns) 6558 G29 0 2 4 6 8 10 12 14 16 18 20 TIME (ns) 6558 G30 PIN FUNCTIONS ⎯E⎯N (Pin 1): Enable Control Pin. The part is enabled when this pin is pulled low. An internal pull-up resistor of 40k will turn the part off if this pin is unconnected. IN G (Pin 5): Green Channel Input. This pin has a nominal impedance of 450kΩ with input bias circuit inactive, Pin 16 open. GND (Pin 2): Ground Reference for Enable Pin (Pin 1) and Bias Control Voltage Pin (Pin 16). This pin must be connected externally to ground. GND G (Pin 6): Ground of Green Channel Amplifier. This pin is not internally connected to other ground pins and must be connected externally to ground. IN R (Pin 3): Red Channel Input. This pin has a nominal impedance of 450kΩ with input bias circuit inactive, Pin 16 open. IN B (Pin 7): Blue Channel Input. This pin has a nominal impedance of 450kΩ with input bias circuit inactive, Pin 16 open. GND R (Pin 4): Ground of Red Channel Amplifier. This pin is not internally connected to other ground pins and must be connected externally to ground. GND B (Pin 8): Ground of Blue Channel Amplifier. This pin is not internally connected to other ground pins and must be connected externally to ground. 6558f 7 LT6558 PIN FUNCTIONS V+ B (Pin 9): Positive Supply Voltage of Blue Channel Amplifier. This pin is not internally connected to other supply voltage pins and must be externally connected to the supply voltage bus with proper bypassing. For best performance, see Power Supply Considerations. OUT B (Pin 10): Blue Channel Output. V+ G (Pin 11): Positive Supply Voltage of Green Channel Amplifier. This pin is not internally connected to other supply voltage pins and must be externally connected to the supply voltage bus with proper bypassing. For best performance, see Power Supply Considerations. the supply voltage bus with proper bypassing. For best performance, see Power Supply Considerations. OUT R (Pin 14): Red Channel Output. V+ (Pin 15): Positive Supply Voltage of Control Circuitry. This pin is not internally connected to other supply voltage pins and must be externally connected to supply voltage bus with proper bypassing. For best performance, see Power Supply Considerations. OUT G (Pin 12): Green Channel Output. BCV (Pin 16): Bias Control Voltage. A resistor connected between Pin 16 and Pin 2 (GND) will generate a DC voltage bias at the inputs of the three amplifiers for AC coupling application, see Programmable Input Bias. V+ R (Pin 13): Positive Supply Voltage of Red Channel Amplifier. This pin is not internally connected to other supply voltage pins and must be externally connected to Exposed Pad (Pin 17, DFN Package): Ground. This pad must be soldered to PCB and is internally connected to GND (Pin 2). APPLICATIONS INFORMATION Power Supply Considerations The LT6558 is optimized to provide full video signal swing output when operated from a standard 5V single supply. Due to the supply current involved in ultrahigh slew rate amplifiers like the LT6558, selection of the lowest workable supply voltage is recommended to minimize heat generation and simplify thermal management. Temperature rise at the internal devices (TJ) must be kept below 150°C (SSOP package) or 125°C (DFN package), and can be estimated from the ambient temperature (TA) and power dissipation (PD) as follows: TJ = TA + PD • 40°C/W for DFN package or TJ = TA + PD • 110°C/W for SSOP package where PD = (IS + 0.5 • IO) • VS(TOTAL) The latter equation assumes (conservatively) that the output swing is small relative to the supply and RMS load current (IO) is bidirectional (as with AC coupling). The grounds are separately pinned for each amplifier to minimize crosstalk. Operation from split supplies can be accomplished by connecting the LT6558 ground pins to the negative rail. With dual supplies, recommended voltages range from nominal ±2.5V to ±3.3V. The ultrahigh frequency (UHF) operating range of the LT6558 requires that careful printed circuit layout practices be followed to obtain maximum performance. Trace lengths between power pins and bypass capacitors should be minimized (<0.1 inch) and one or more dedicated ground planes should be employed to minimize parasitic inductance. Poor layout or breadboarding methods can seriously impact amplifier stability, frequency response and crosstalk performance. A 2.2µF and a 10µF bypass capacitor is recommended for the LT6558 supply bus, plus a 10nF high frequency bypass capacitor at each individual power pin. 6558f 8 LT6558 APPLICATIONS INFORMATION Programmable Input Bias The LT6558 contains circuitry that provides a user-programmed bias voltage to the inputs of all three amplifier sections. The internal biasing feature is designed to minimize external component count in AC-coupled applications, but may be defeated if external biasing is desired. Figure 1 shows the simplified equivalent circuit feeding the noninverting input of each amplifier. A programming resistor from Pin 16 to GND (Pin 2) establishes the nominal V+ V I = PIN16 RSET no-signal amplifier input bias condition according to the following relationship: VBIAS(IN) = VPIN16 • 9.1k RSET where VPIN16 = 0.044V typical. For single 5V supply operation, a 158Ω programming resistor is generally optimal. In applications that demand maximum amplifier linearity, or if external biasing is preferred (in DC-coupled applications, for example), the internal biasing circuitry may be disabled by leaving Pin 16 open. With BCV (Pin 16) open, input loading is approximately 450kΩ. Shutdown Control 2.5k IN 9.1k 6558 F01 Figure 1. Simplified Programmable Input Bias Circuit Diagram V+ 40k BIAS CIRCUITRY EN 6558 F02 The LT6558 may be placed into a shutdown mode, where all three amplifier sections are deactivated and power supply draw is reduced to approximately 10µA. When the EN pin is left open, an internal 40k pull-up resistor brings the pin to V+ and the part enters the shutdown mode. Pulling the pin more than approximately 1.5V below V+ will enable the LT6558 (see Figure 2 for equivalent circuit). The pull-down current required to activate the part is typically 125µA. In most applications, the EN pin is simply connected to ground (for continuous operation) or driven directly by a CMOS-level logic gate (see Figure 3 for examples). Response time is typically 50ns for enabling, and 1µs for shutdown. In shutdown mode, the feedback resistors remain connected between the output pins and the individual ground (or V– connected) pins. Figure 2. Simplified Shutdown Circuit Diagram V+ V+ 1 LT6558 EN DISABLE 1 EN DISABLE LT6558 2 2 6558 F03 (3a) Open Drain or Open Collector (3b) CMOS Gate with Shared Supply Figure 3. Suitable Shutdown Pin Drive Circuits 6558f 9 LT6558 SIMPLIFIED SCHEMATIC (Single Amplifier Section) V+ EN BIAS IN V+ V+ OUT V+ 6558 SS PACKAGE DESCRIPTION GN Package 16-Lead Plastic SSOP (Narrow .150 Inch) (Reference LTC DWG # 05-08-1641) .189 – .196* (4.801 – 4.978) .045 ±.005 16 15 14 13 12 11 10 9 .254 MIN .009 (0.229) REF .150 – .165 .229 – .244 (5.817 – 6.198) .0165 ± .0015 .150 – .157** (3.810 – 3.988) .0250 BSC RECOMMENDED SOLDER PAD LAYOUT 1 .015 ± .004 × 45° (0.38 ± 0.10) .007 – .0098 (0.178 – 0.249) .0532 – .0688 (1.35 – 1.75) 2 3 4 5 6 7 8 .004 – .0098 (0.102 – 0.249) 0° – 8° TYP .016 – .050 (0.406 – 1.270) NOTE: 1. CONTROLLING DIMENSION: INCHES INCHES 2. DIMENSIONS ARE IN (MILLIMETERS) .008 – .012 (0.203 – 0.305) TYP .0250 (0.635) BSC GN16 (SSOP) 0204 3. DRAWING NOT TO SCALE *DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE **DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE 6558f 10 LT6558 PACKAGE DESCRIPTION DHC Package 16-Lead Plastic DFN (5mm × 3mm) (Reference LTC DWG # 05-08-1706) 0.65 ±0.05 3.50 ±0.05 1.65 ±0.05 2.20 ±0.05 (2 SIDES) PACKAGE OUTLINE 0.25 ± 0.05 0.50 BSC 4.40 ±0.05 (2 SIDES) RECOMMENDED SOLDER PAD PITCH AND DIMENSIONS R = 0.115 TYP 5.00 ±0.10 (2 SIDES) R = 0.20 TYP 3.00 ±0.10 (2 SIDES) 9 0.40 ± 0.10 16 1.65 ± 0.10 (2 SIDES) PIN 1 TOP MARK (SEE NOTE 6) PIN 1 NOTCH (DHC16) DFN 1103 8 0.200 REF 1 0.25 ± 0.05 0.50 BSC 0.75 ±0.05 4.40 ±0.10 (2 SIDES) 0.00 – 0.05 BOTTOM VIEW—EXPOSED PAD NOTE: 1. DRAWING PROPOSED TO BE MADE VARIATION OF VERSION (WJED-1) IN JEDEC PACKAGE OUTLINE MO-229 2. DRAWING NOT TO SCALE 3. ALL DIMENSIONS ARE IN MILLIMETERS 4. DIMENSIONS OF EXPOSED PAD ON BOTTOM OF PACKAGE DO NOT INCLUDE MOLD FLASH. MOLD FLASH, IF PRESENT, SHALL NOT EXCEED 0.15mm ON ANY SIDE 5. EXPOSED PAD SHALL BE SOLDER PLATED 6. SHADED AREA IS ONLY A REFERENCE FOR PIN 1 LOCATION ON THE TOP AND BOTTOM OF PACKAGE 6558f Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representation that the interconnection of its circuits as described herein will not infringe on existing patent rights. 11 LT6558 TYPICAL APPLICATION DC-Coupled Split Supply Operation 1 2 BCV EN GND LT6558 3 IN Pr + – 4 5 IN Pb 7 8 –2.5V 15 14 V+ + – 6 IN Y V+ 16 + – OUT_Pr 75Ω 75Ω OUT_Pb 75Ω 11 10 V+ 75Ω 13 12 V+ 2.5V 75Ω 9 OUT_Y 75Ω 6558 TA02 RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1399 300MHz Triple Current Feedback Amplifier 0.1dB Gain Flatness to 150MHz, Shutdown LT1675 250MHz Triple RGB Multiplexer 100MHz Pixel Switching, 1100V/µs Slew Rate, 16-Lead SSOP LT6550/LT6551 3.3V Triple and Quad Video Buffers 110MHz Gain of 2 Buffers in MS Package LT6553 650MHz Gain of 2 Triple Video Amplifier Optimized for Driving 75Ω Cables LT6554 650MHz Gain of 1 Triple Video Amplifier Performance Similar to the LT6553 with AV = 1, 16-Lead SSOP LT6555 650MHz Gain of 2 Triple Video Multiplexer Optimized for Driving 75Ω Cables LT6556 750MHz Gain of 1 Triple Video Multiplexer High Slew Rate 2100V/µs LT6557 500MHz, Gain of 2 Triple Video Amplifier Optimized for Single 5V Supply Driving 75Ω Cables, High Slew Rate 2200V/µs LT6559 Low Cost, 300MHz, Triple Video Amplifier 3mm × 3mm QFN Package 6558f 12 Linear Technology Corporation LT 0906 • PRINTED IN USA 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com © LINEAR TECHNOLOGY CORPORATION 2006