FMS6151 Ultra Portable Video Filter Driver Features 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. 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® packaging 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(150Ω) 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. Applications ■ ■ ■ ■ ■ Digital Still Cameras Camera Phones Personal Digital Assistants Set Top Boxes Digital Video Recorders 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. 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 January 2006 FMS6151 Ultra Portable Video Filter Driver Pin Configuration Pin Assignments Pin# VIN 1 6 EN FMS6151 GND SAG 2 5 3 4 Vcc VOUT Pin Type Description 1 VIN Input Video Input 2 GND Input Ground SAG 3 SAG Input 4 VOUT Output Filtered Video Output 5 Vcc Input Positive Power Supply 6 EN Input Enable 0=Disabled 1=Enabled Absolute Maximum Ratings Parameter Min. Max. Unit DC Supply Voltage -0.3 6 V Analog and Digital I/O -0.3 Vcc + 0.3 V 45 mA Maximum Output Current, Do Not Exceed Reliability Information Parameter Min. Typ. Junction Temperature Storage Temperature Range -65 Thermal Resistance (ThetaJA), JEDEC Standard Multi-Layer Test Boards, Still Air Max. Unit 150 ˚C 150 ˚C 271 ˚C/W Recommended Operating Conditions Parameter Min. Operating Temperature Range -40 Supply Voltage Range 2.5 www.fairchildsemi.com 2 Typ. 3.3 Max. Unit 85 ˚C 5.25 V FMS6151 Rev. 1B Tc = 25˚C, Vcc = 2.7V, Rs = 37.5Ω, AC coupled output into 150Ω load, SAG pin connected to VOUT pin; unless otherwise noted. Symbol Parameter ICC Supply Current1 Conditions Vin Video Input Voltage Range Vols Output Level Shift1 Vin = 0V PSRR Vols over power supply Vcc = 2.7V to 3.3V ISH Shut Down Current Vil Disabled Logic Low1 High1 Min. Typ. Max Vcc = 2.7V, No load 3.8 6.4 Referenced to GND 1.2 50 200 350 mV dB 25 nA 0.8 Vcc*0.6 mA Vpp 40 0 Units Vcc V Vih Enabled Logic tON Enable Time 1.5 us V tOFF Disable Time 50 ns AC Electrical Characteristics Tc = 25˚C, Vcc = 2.7V, Rs = 37.5Ω, AC coupled output into 150Ω load, SAG pin connected to VOUT pin; unless otherwise noted. Symbol Parameter Conditions AV Gain1 f1dB -1dB Bandwidth1 fc -3dB Bandwidth fSB Attenuation1(stopband reject) 27MHz DC Min. Typ. Max Units 5.6 6.0 6.6 5.0 6.7 MHz 8 MHz 40 47 dB dB DG Differential Gain 0.5 % DP Differential Phase 0.5 ˚ SNR Signal-to-Noise Ratio 78 dB NTC-7 weighting, 100kHz to 4.2MHz Notes: 1. 100% tested at 25˚C FMS6151 Rev. 1B 3 www.fairchildsemi.com FMS6151 Ultra Portable Video Filter Driver DC Electrical Characteristics Figure 2. Gain Error vs. Temp. Figure 1. Frequency Response 10 2.0 1 -10 -15 -20 -25 Mkr Ref 1 2 3 -30 -35 -40 -45 1.8 2 Frequency 400kHz 6.7MHz 8.0MHz 27MHz 1.6 Gain Error (%) Gain (dB) 5 0 -5 Gain 6dB -1dB BW -3dB BW -42dB 1.4 1.2 1.0 3 0.8 fSBSD = Gain(ref) – Gain(3) = 48dB 0.6 0 5 10 15 20 25 -40 -30 -20 -10 0 10 20 30 40 50 60 70 80 30 Frequency (MHz) Temperature (°C) Figure 3. Enable/Disable Response Figure 4. Differential Gain 3.0 -20 2.5 NTSC 2.0-30 without Using SAG 0.1µF and 0.01µF Differential Gain (%) PSRR (dB) Signal Amplitude (V) PSRR (dB) Enable Pulse -30 2.0 -40 1.0-50 1.5 -40 1.0 Bypass Capacitors as suggested 0.5-50 0 -0.5-60 -60 -1.0 -70 -1.5 Min = -0.58 Output 0-70 -2.0-80 -80 -1.0 -90-1 0 0.1 1 2 3 4 1 (µs) Time Frequency (MHz) 5 10 -2.5 -90 6 30 Max = 0.00 ppMax = 0.58 1st 0.1 2nd 3rd 1 4th 5th 6th 10 30 Frequency (MHz) Figure 5. Icc vs. Supply Voltage Figure 6. Differential Phase 7.0 2.5 Differential Phase (deg) 6.0 5.0 Icc (mA) FMS6151 Ultra Portable Video Filter Driver Typical Performance Characteristics Tc = 25˚C, Vcc = 2.7V, Rs = 37.5Ω, AC coupled output into 150Ω load, SAG pin connected to VOUT pin; unless otherwise noted. 4.0 3.0 2.0 1.0 2.0 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 0 NTSC without SAG Min = -0.58 Max = 0.12 ppMax = 0.70 -2.5 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 Tc = 25˚C, Vcc = 2.7V, Rs = 37.5Ω, AC coupled output into 150Ω load, SAG pin connected to VOUT pin; unless otherwise noted. Figure 8. Shutdown Current vs. Temp. Figure 7. Supply Current vs. Temp. 4.0 60 50 ISH (nA) Icc (mA) 3.9 3.8 3.7 40 30 20 3.6 10 3.5 0 -40 -20 0 20 40 60 80 -40 Temperature (°C) -20 0 20 40 60 80 Temperature (°C) Application Information (220µF into 150Ω 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. 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. 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, 220µF, output coupling capacitor. A 22µF is used for sag correction and a 47µF is used for the output coupling capacitor, extremely smaller and cheaper than the traditional circuit requirements. 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. 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. For more application information, please refer to our FMS6151 Application Note, AN-8005. SAG Correction Sag correction provides excellent performance with a small output coupling capacitor. It eliminates the 220µF - 1000µF output coupling capacitors traditionally used. The traditional output circuit FMS6151 Rev. 1B 5 www.fairchildsemi.com FMS6151 Ultra Portable Video Filter Driver Typical Performance Characteristics FMS6151 Ultra Portable Video Filter Driver Mechanical Dimensions 6-Lead MicroPak Package 0.10 C B 1.45±0.05 6 5 1 0.5 4 0.75 5X 0.49 1.00±0.05 1X 1 2 3 6X A 0.52 1 0.3 TOP VIEW RECOMMENDED LAND PATTERN 0.55 MAX 0.10 C C 0.15 (0.05) 6X 1 Detail A 5X 0.35 0.25 A B 0.15 6X 0.25 0.6 0.5 C 0.4 0.3 2X (0.13) 4X 0.075 X 45° CHAMFER DETAIL A PIN 1 LEAD BOTTOM VIEW 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 Model Part Number Lead Free Package Container Pack Qty Yes uPAK-6 Reel 5000 FMS6151 FMS6151L6X Temperature range for all parts: -40˚C to 85˚C. 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 ©2006 Fairchild Semiconductor Corporation FMS6151 Ultra Portable Video Filter Driver Ordering Information