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| FMS6151 Ultra Portable Video Filter Driver January 2006 FMS6151 Ultra Portable Video Filter Driver Features 5th order 8MHz (SD) filter Power down to 25nA DC coupled input AC or DC coupled output DC coupled output eliminate need for AC coupling cap SAG correction reduces size of AC coupling cap Fixed gain of 6dB Small, lead (Pb) free, Micropak(R) packaging Description The FMS6151 low cost, integrated, video filter is intended to replace passive LC filters and drivers in low voltage portable video applications. The 5th order filter provides better image quality compared to typical 2nd and 3rd order passive solutions. The FMS6151 is intended to be directly driven by a DC-coupled DAC output. The output can drive an AC or DC-coupled doubly terminated coax(150) load. DC-coupling the output removes the need for an expensive output coupling capacitor. If an AC-coupled output is needed, the SAG correction circuit can be used to reduce the AC output coupling capacitor value. Input DC levels are offset by approximately 100mV. This internal level shift is incorporated to prevent sync pulse clipping. Offering SAG correction, fixed gain of 6dB, and a 5th order low pass filter in a tiny space saving package (Micropak) makes the FMS6151 well suited for space sensitive applications such as cellular phones and digital cameras. Applications Digital Still Cameras Camera Phones Personal Digital Assistants Set Top Boxes Digital Video Recorders Block Diagram Vcc = 2.5V to 5.25V EN VIN 8MHz, 5th order + VOUT SAG FMS6151 Rev. 1B 1 www.fairchildsemi.com FMS6151 Ultra Portable Video Filter Driver Pin Configuration VIN 1 6 Pin Assignments Pin# EN 1 2 Pin VIN GND SAG VOUT Vcc EN Type Input Input Input Output Input Input Video Input Ground SAG Description FMS6151 GND 2 5 3 Vcc 4 5 Filtered Video Output Positive Power Supply Enable 0=Disabled 1=Enabled SAG 3 4 VOUT 6 Absolute Maximum Ratings Parameter DC Supply Voltage Analog and Digital I/O Maximum Output Current, Do Not Exceed Min. -0.3 -0.3 Max. 6 Vcc + 0.3 45 Unit V V mA Reliability Information Parameter Junction Temperature Storage Temperature Range Thermal Resistance (ThetaJA), JEDEC Standard Multi-Layer Test Boards, Still Air -65 271 Min. Typ. Max. 150 150 Unit C C C/W Recommended Operating Conditions Parameter Operating Temperature Range Supply Voltage Range Min. -40 2.5 Typ. 3.3 Max. 85 5.25 Unit C V www.fairchildsemi.com 2 FMS6151 Rev. 1B FMS6151 Ultra Portable Video Filter Driver DC Electrical Characteristics Tc = 25C, Vcc = 2.7V, Rs = 37.5, AC coupled output into 150 load, SAG pin connected to VOUT pin; unless otherwise noted. Symbol ICC Vin Vols PSRR ISH Vil Vih tON tOFF Supply Parameter Current1 Video Input Voltage Range Output Level Shift1 Vols over power supply Shut Down Current Disabled Logic Low1 Enabled Logic Enable Time Disable Time High1 Conditions Vcc = 2.7V, No load Referenced to GND Vin = 0V Vcc = 2.7V to 3.3V Min. Typ. 3.8 1.2 Max 6.4 Units mA Vpp 50 200 40 25 350 mV dB nA 0 Vcc*0.6 1.5 50 0.8 Vcc V V us ns AC Electrical Characteristics Tc = 25C, Vcc = 2.7V, Rs = 37.5, AC coupled output into 150 load, SAG pin connected to VOUT pin; unless otherwise noted. Symbol AV f1dB fc fSB DG DP SNR Gain1 -1dB Bandwidth1 -3dB Bandwidth Attenuation1(stopband reject) 27MHz Differential Gain Differential Phase Signal-to-Noise Ratio NTC-7 weighting, 100kHz to 4.2MHz 40 Parameter DC Conditions Min. 5.6 5.0 Typ. 6.0 6.7 8 47 0.5 0.5 78 Max 6.6 Units dB MHz MHz dB % dB Notes: 1. 100% tested at 25C FMS6151 Rev. 1B 3 www.fairchildsemi.com FMS6151 Ultra Portable Video Filter Driver Typical Performance Characteristics Tc = 25C, Vcc = 2.7V, Rs = 37.5, AC coupled output into 150 load, SAG pin connected to VOUT pin; unless otherwise noted. Figure 1. Frequency Response 10 5 0 -5 -10 -15 -20 -25 -30 -35 -40 -45 0 1 Figure 2. Gain Error vs. Temp. 2.0 1.8 2 Gain Error (%) 3 1.6 1.4 1.2 1.0 0.8 0.6 Gain (dB) Mkr Ref 1 2 3 Frequency 400kHz 6.7MHz 8.0MHz 27MHz Gain 6dB -1dB BW -3dB BW -42dB fSBSD = Gain(ref) - Gain(3) = 48dB 5 10 15 20 25 30 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 Frequency (MHz) Temperature (C) Figure 3. Enable/Disable Response 3.0 -20 Enable Pulse Figure 4. Differential Gain 2.5 NTSC -30 without SAG 2.0 Using 0.1F and 0.01F Signal Amplitude (V) PSRR (dB) Differential Gain (%) PSRR (dB) -30 2.0 -40 1.5 -40 1.0 0.5 -50 Bypass Capacitors as suggested 1.0-50 -60 Output 0 -60 -0.5 -1.0 -70 -1.5 Min = -0.58 -2.0 -80 Max = 0.00 ppMax = 0.58 0-70 -80 -1.0 -90 -1 0.1 0 1 2 3 4 1 Time (s) Frequency (MHz) 5 10 6 30 -2.5 -90 1st 0.1 2nd 3rd 1 4th 5th 10 6th 30 Frequency (MHz) Figure 5. Icc vs. Supply Voltage 7.0 2.5 Figure 6. Differential Phase Differential Phase (deg) 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 -2.5 Min = -0.58 Max = 0.12 ppMax = 0.70 NTSC without SAG 6.0 5.0 Icc (mA) 4.0 3.0 2.0 1.0 0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 1st 2nd 3rd 4th 5th 6th Vcc (V) www.fairchildsemi.com 4 FMS6151 Rev. 1B FMS6151 Ultra Portable Video Filter Driver Typical Performance Characteristics Tc = 25C, Vcc = 2.7V, Rs = 37.5, AC coupled output into 150 load, SAG pin connected to VOUT pin; unless otherwise noted. Figure 7. Supply Current vs. Temp. 4.0 3.9 3.8 3.7 3.6 3.5 -40 -20 0 20 40 60 80 Figure 8. Shutdown Current vs. Temp. 60 50 40 30 20 10 0 -40 -20 0 20 40 60 80 Temperature (C) ISH (nA) Icc (mA) Temperature (C) (220F into 150 load) creates a single pole (-3dB) at 5Hz. Reducing this capacitor causes excessive phase shift, resulting in video field tilt which can prevent proper recovery of the synchronization signals. The FMS6151 sag correction circuit provides a small amount of peaking, which provides compensation of the phase response, significantly reducing video field tilt. The SAG correction circuit allows you to decrease the large, 220F, output coupling capacitor. A 22F is used for sag correction and a 47F is used for the output coupling capacitor, extremely smaller and cheaper than the traditional circuit requirements. Application Information Input Voltage The FMS6151 is intended to be directly driven by a DC coupled DAC output. The input common mode range of the FMS6151 is 1.2Vpp, ground referenced. Enable/Shutdown The FMS6151 has a shutdown feature that disables the output and reduces the quiescent current to ~25nA. This feature is especially useful in portable applications, such as cellular phones, hand held gaming devices, and video cameras requiring video filtering and drive capability. Output Configuration The FMS6151 output is a low impedance voltage driver. It is capable of driving an AC or DC coupled single load. For more application information, please refer to our FMS6151 Application Note, AN-8005. Internal Level Shift The FMS6151 has an internal level shift circuit to avoid sync tip clipping. The output signal is shifted 200mV toward the VCC rail to help prevent clipping. This offset is extremely useful when DC coupled out or using SAG correction. SAG Correction Sag correction provides excellent performance with a small output coupling capacitor. It eliminates the 220F - 1000F output coupling capacitors traditionally used. The traditional output circuit FMS6151 Rev. 1B 5 www.fairchildsemi.com FMS6151 Ultra Portable Video Filter Driver Mechanical Dimensions 6-Lead MicroPak Package 0.10 C B 1.450.05 6 5 4 5X 1.000.05 1X 1 2 3 0.52 0.3 1 0.49 1 0.5 0.75 A 6X TOP VIEW 0.55 MAX 0.10 C RECOMMENDED LAND PATTERN C 1 Detail A 0.15 6X 0.25 0.15 AB C 0.4 0.3 (0.05) 6X 5X 0.35 0.25 0.6 0.5 BOTTOM VIEW 2X 0.075 X 45 CHAMFER DETAIL A PIN 1 LEAD (0.13) 4X NOTES 1. JEDEC PACKAGE REGISTRATION IS ANTICIPATED 2. DIMENSIONS ARE IN MILLIMETERS 3. THIS DRAWING IS PRELIMINARY AND SUBJECT TO CHANGE 4. DRAWING CONFORMS TO ASME Y14.5M-1994 www.fairchildsemi.com 6 FMS6151 Rev. 1B FMS6151 Ultra Portable Video Filter Driver Ordering Information Model Part Number Lead Free Yes Package uPAK-6 Container Reel Pack Qty 5000 FMS6151 FMS6151L6X Temperature range for all parts: -40C to 85C. DISCLAIMER FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT RIGHTS, NOR THE RIGHTS OF OTHERS. LIFE SUPPORT POLICY FAIRCHILD'S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION. As used herein: 2. A critical component is any component of a life 1. Life support devices or systems are devices or support device or system whose failure to perform can systems which, (a) are intended for surgical implant into be reasonably expected to cause the failure of the life the body, or (b) support or sustain life, or (c) whose support device or system, or to affect its safety or failure to perform when properly used in accordance with instructions for use provided in the labeling, can be effectiveness. reasonably expected to result in significant injury to the user. www.fairchildsemi.com 7 (c)2006 Fairchild Semiconductor Corporation |
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