ZXFV201, ZXFV202, ZXFV203, ZXFV204 Quad, single, triple and dual video amplifiers Device description Features The ZXFV201, ZXFV202, ZXFV203 and • High speed ZXFV204 are quad, single, triple and dual, • Gain of 1 - 3dB bandwidth 210MHz respectively, high speed amplifiers designed • Slew rate 380V/µs for video and other high speed applications. • Good video Their low differential gain and phase • 25 MHz 0.1dB bandwidth performance make them ideal for video amplifier buffer applications. • Differential gain 0.04% • Differential phase 0.04° The quad allows one IC to drive RGBS format component video signals, while the triple • 40mA output current @ 3V Output provides RGB component video buffer/driver. • Characterized up to 300pF load The dual amplifier is a mainstay of the video • ±5 Volt supply operation market providing two channels in the space of • Supply current 7.5mA per amplifier 1 single in SO8. The small size of the ZXFV202 in SOT23 allows it to be placed where needed for position/size critical applications. Applications Together with high output drive and slew rate • Industry standard pinouts capability, they bring high performance to • Video gain stages video applications. •CCTV buffer • Video distribution Ordering information • RGB buffering Part number Descrip- Status Reel size Qty. Part •Home theater tion (inches) mark • High speed ADC signal input drive ZXFV202E5TA Single Active 7 3,000 V202 • Cable driving ZXFV202E5TD Single Obsolete 7 500 V202 ZXFV202N8TA Single Obsolete 7 500 ZXFV202 Application diagram ZXFV204N8TA Dual Obsolete 7 500 ZXFV204 ZXFV204N8TC Dual Active 13 2,500 ZXFV204 Y +2 75⍀ Co-ax ZXFV203N14TA Triple Active 7 500 ZXFV203 75⍀ ZXFV203N14TC Triple Obsolete 13 2,500 ZXFV203 Back termination ZXFV201N14TA Quad LTB 7 500 ZXFV201 C +2 75⍀ Co-ax ZXFV201N14TC Quad Obsolete 13 2,500 ZXFV201 Dual amplifier S - video driver Issue 5 - May 2007 1 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 Absolute maximum ratings over operating free-air temperature (unless otherwise stated (a)) Supply voltage (VS+ to VS-) -0.5V to +11V (b) V -0.5V to V +0.5 V Input voltage (VIN-, VIN+) S- S+ Differential input voltage (VID)±3V (c) ±5mA Inverting input current (IIN-) Output current (continuous, TJ < 110°C) ±60mA Internal power dissipation See power dissipation derating table Storage temperature range -65°C to +150°C Operating ambient junction temperature (TJMAX) 150°C NOTES: (a) Stresses above those listed under Absolute maximum ratings may cause permanent damage to the device. This is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. (b) During power-up and power-down, these voltage ratings require that signals be applied only when the power supply is connected. (c) At high closed loop gains and low gain setting resistors care must be taken if large input signals are applied to the device which cause the output stage to saturate for extended periods of time. Power derating table Package Theta-ja Power rating at 25'C SOT23-5 195°C/W 0.64W SO8 168°C/W 0.74W SO14 120°C/W 1.04W Recommended operating conditions Parameter Min. Max. Unit VS± Dual supply voltage range ±4.75 ±5.25 V VCMR Common mode input voltage range -3 +3 V TA Ambient temperature range -40 85 °C Recommended resistor values VS± = 5V, CL = 10pF GCL RF RG Peaking 680 2 dB 1 820 n/c 0 1000 -2dB 430 430 2dB 24704701.5dB 560 560 0 Issue 5 - May 2007 2 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 DC electrical characteristics (±5V power supplies, Tamb= 25°C unless otherwise ⍀ ⍀ р stated. Rf = 1k , RL = 150 , CL = 10pF) Parameter Conditions Test Min. Typ. Max. Unit Supply voltage V+ operating range 4.75 5 5.25 V Supply voltage V- operating range -5.25 -5 -4.75 V Supply current/per channel P 5.0 7.5 10 mA Input common mode voltage range P Ϯ3V Input offset voltage P 1 10 mV Output offset voltage P 2 20 mV Input bias current, non-inverting input P 5 10 ␮A Input resistance P 1.5 2 6.5 M⍀ Ϯ Output voltage swing IOUT = 40mA P 3V Output drive current VIN = 3V P 40 mA Positive PSRR ⌬V+ = ±0.25 P 49 57 dB Negative PSRR ⌬V- = ±0.25 P 49 57 dB Test - P = production tested. C = characterized ⍀ AC electrical characteristics (±5V, Rf = 470 , G = 2, CL = 10pF, TA = 25°C, unless otherwise stated) Parameter Conditions Min Typ Max Unit ⍀ VOUT = 0.2VPP G = +2, RF = 470 210 BW-3 Bandwidth, -3dB ⍀ MHz VOUT = 0.2VPP G = +1, RF = 820 210 BW0.1 Bandwidth, ±0.1dB VOUT = 0.2VPP 30 MHz ⍀ SR Slew Rate VOUT = 2VPP G = +2, RF = 470 600 ⍀ V/␮s VOUT = 2VPP G = +1, RF = 820 380 tr Rise time 5.8 VOUT = ±1V, 10% - 90% tf Fall time 4.6 ns tp Propagation delay VOUT = ±2V, 10% - 90% 2.6 dG Differential phase, NTSC NTSC/PAL, 280mVPP, 0.04 % dP Differential phase, NTSCDC = -1.428V to +1.428 V 0.04° Issue 5 - May 2007 3 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 Applications information A typical circuit application is shown in Figure 1. This is suitable for 75⍀ transmission line connections at both the input and the output and is useful for distribution of wide-band signals such as video via cables. The 75⍀ reverse terminating resistor R4 gives the correct matching condition to a terminated video cable. The amplifier load is then 150⍀ in parallel with the local feedback network. 470 470 Figure 1 Typical video signal application circuit, gain = 2 (overall gain = 1 for 75⍀ load The wide bandwidth of this device necessitates some care in the layout of the printed circuit. A continuous ground plane is required under the device and its signal connection paths, to provide the shortest possible ground return paths for signals and power supply filtering. A double-sided or multi-layer PCB construction is required, with plated-through via holes providing closely spaced low-inductance connections from some components to the continuous ground plane. For the power supply filtering, low inductance surface mount capacitors are normally required. It has been found that very good RF decoupling is provided on each supply using a 1000pF NPO size 0805 or smaller ceramic surface mount capacitor, closest to the device pin, with an adjacent 0.1␮F X7R capacitor. Other configurations are possible and it may be found that a single 0.01␮F X7R capacitor on each supply gives good results. However this should be supported by larger decoupling capacitors elsewhere on the printed circuit board. Values of 1 to 10␮F are recommended, particularly where the voltage regulators are located more than a few inches from the device. These larger capacitors are recommended to be solid tantalum electrolytic or ceramic types. Note particularly that the inverting input of this current feedback type of amplifier is sensitive to small amounts of capacitance to ground which occur as part of the practical circuit board layout. This capacitance affects bandwidth, frequency response peaking and pulse overshoot. Therefore to minimize this capacitance, the feedback components R2 and R3 of Figure 1 should be positioned as close as possible to the inverting input connection. Issue 5 - May 2007 4 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 The frequency response and pulse response will vary according to particular values of resistors and layout capacitance. The response can be tailored for the application to some extent by choice of the value of feedback resistor. Figures 2 and 3 show the small signal unity gain and gain of 2 frequency responses. 3 RF = 680Ω 0 RF = 820Ω Gain (dB) RF = 1kΩ -3 VIN = 200mVPP TA = 25° VS± = ±5V G = 1 RL = 150Ω CL = 10pF -6 1 10 100 1000 Frequency (MHz) Figure 2 Unity gain small signal bandwidth 9 RF = 430Ω 6 RF = 470Ω RF = 560Ω Gain (dB) 3 VIN = 200mVPP TA = 25° VS± = ±5V G = 2 RL = 150Ω CL = 10pF 0 1 10 100 1000 Frequency (MHz) Figure 3 Gain of 2 small signal bandwidth Issue 5 - May 2007 5 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 Figures 4 and 5 show the large signal unity gain of 2 frequency responses. Large signal G = 1 Large signal G = 2 3 9 0 6 -3 3 -6 0 -9 -3 Gain (dB) Gain (dB) -12 -6 VIN = 1VPP TA = 25° -15 VIN = 1VPP TA = 25° -9 VS± = ±5V G = 2 VS± = ±5V G = 1 RL = 150Ω CL = 10pF -18 RL = 150Ω CL = 10pF -12 RF = 560Ω RF = 820Ω -21 -15 1 10 100 1000 1 10 100 1000 Frequency (MHz) Frequency (MHz) Figures 4 and 5 Large signal unity gain of 2 frequency response The ZXFV20x family are primarily video amplifiers; Figures 6 and 7 show the NTSC/PAL differential gain and phase errors at a gain of 2. Diff gain error Diff phase error 0.05% 0.005° 0.04% 0° 0.04% 0.03% -0.005° 0.03% 0.02% -0.01° 0.02% -0.015° 0.01% 0.01% -0.02° V = 280mV T = 25° VIN = 280mVPP TA = 25° IN PP A Differential Gain Error Differential Phase Error V = ±5V G = 2 0.00% VS± = ±5V G = 2 S± R = 150Ω C = 10pF RL = 150Ω CL = 10pF -0.025° L L -0.01% R = 560Ω RF = 560Ω F -0.01% -0.03° -0.72 -0.48 -0.24 0 0.24 0.48 0.72 -0.72 -0.48 -0.24 0 0.24 0.48 0.72 V (V ) VBIAS (VDC) BIAS DC Figures 6 and 7 NTSC/PAL differential gain and phase errors at a gain of 2 Issue 5 - May 2007 6 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 Pinout details OUT V S+ NC OUT3 V S- NC IN3 - +IN -IN NC IN3+ ZXFV202E5 VS+VS- Single IN1+ ZXFV204 IN2+ IN1+ IN2 - NC NC OUT1 OUT2 IN- V S+ ZXFV203 IN+ OUT Triple VS- NC ZXFV202N8 Single OUT1 OUT4 IN1- IN4 - IN1+ IN4+ OUT1 V S+ VS+VS- IN1 - OUT2 IN2+ ZXFV204 IN3+ IN1+ IN2 - IN2- IN3 - V S- IN2+ OUT2 OUT3 ZXFV204 ZXFV201 Dual Quad Issue 5 - May 2007 7 www.zetex.com © Zetex Semiconductors plc 2007 ZXFV201, ZXFV202, ZXFV203, ZXFV204 Package details - SO8, SO14 Dim.