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SGM9114 8mhz, 5th-order video driver with 6db gain rev. b. 1 general description the SGM9114 is a single rail-to-rail 5th-order output reconstruction filter with a -3db bandwidth of 8mhz and 35v/s slew rate. operating from single power supply ranging from 3.0v to 5.5v and sinking an ultra-low 6ma quiescent current, the SGM9114 is ideally suited for low power, battery-operated applications. SGM9114 employs an internal level shift circuit that avoids sync-pulse clipping and allows dc-coupled output. if ac coupling is preferred, the SGM9114 offers a sag-correction feature that significantly reduces the size of the output coupling capacitor. SGM9114 has a power-down disable feature that reduces the supply current to 0.1 a, dramatically reducing power consumpt ion and prolonging battery life. it operates over an ambient temperature range of -40 to +85 . block diagram out sag 5th-order filter SGM9114 6db level shifter in v cc gnd v cc = 3.0v to 5.5v disable 10k to external power supply or control i/o notes: 1. a 10k ? resistor must be serially connected to disable pin. 2. power supply v cc must be sequenced on first before input video signals. features ? excellent video performance ? 5th-order reconstruction filter ? internal gain: 6db ? rail-to-rail output ? sag correction reduces ac coupling capacitor size ? input voltage range includes ground ? ac- and dc-coupled input ? single power suppl y: 3.0v to 5.5v ? low power 6ma typical supply current 0.1 a typical supply current when disabled ? available in green sot-23-6 package ? -40 to +85 operating temperature range applications video amplifiers cable and satellite set-top boxes communication devices video on demand portable and handheld products personal video recorders dvd players hdtv sg micro corp www.sg-micro.com
8mhz, 5th-order video driver SGM9114 with 6db gain 2 sg micro corp www.sg-micro.com package/ordering information model package description specified temperature range ordering number package marking packing option SGM9114 sot-23-6 -40 to +85 SGM9114yn6g/tr s07xx tape and reel, 3000 note: xx = date code. green (rohs & hsf): sg micro corp defines "green" to mean pb-free (rohs compatible) and free of halogen substances. if you have additional comments or questions, please contact your sgmicro representative directly. marking information s07 x x date code - year ("a" = 2010, "b" = 2011 ) date code - month ("a" = jan. "b" = feb. "l" = dec.) chip i.d. for example: s07fa (2015, january) absolute maximum ratings input voltage range ..................... gnd - 0. 3v to v cc + 0.3v supply voltage, v cc ....................................................... 6.0v junction tem peratur e .................................................. 150 storage temperatur e range........................ -65 to +150 lead temperature (s oldering, 10s) .............................. 260 esd susceptibility hbm............................................................................ 8000v mm................................................................................ 400v cdm ........................................................................... 2000v recommended operating conditions operating voltage rang e................................... 3.0v to 5.5v operating temperat ure range ...................... -40 to +85 overstress caution stresses beyond those listed may cause permanent damage to the device. functional operat ion of the device at these or any other conditions beyond those indicated in the operational section of the spec ification is not implied. exposure to absolute maximum rating conditions for extended periods may affect reliability. esd sensitivity caution this integrated circuit can be damaged by esd if you don?t pay attention to esd protecti on. sgmicro recommends that all integrated circuits be handled with appropriate precautions. failure to observe proper handling and installation procedures can cause damage. esd damage can range from subtle performance degradation to complete device failure. precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. disclaimer sg micro corp reserves the ri ght to make any change in circuit design, specification or other related things if necessary without notice at any time.
8mhz, 5th-order video driver SGM9114 with 6db gain 3 sg micro corp www.sg-micro.com pin configuration (top view) in 3 4 5 6 1 2g sag v cc out sot-23-6 disable n d s07xx pin description pin name function 1 disable shutdown input. 2 out signal output. 3 sag sag correction. 4 in signal input. 5 gnd ground. 6 v cc power supply.
8mhz, 5th-order video driver SGM9114 with 6db gain 4 sg micro corp www.sg-micro.com electrical characteristics (at v cc = 5v, r l = 150 ? connected to gnd, v in = 1v pp and c in = 0.1 f, output ac-coupled, referenced to 400khz, unless otherwise noted.) parameter conditions temp min typ max units input characteristics +25 340 570 output level shift voltage (v ols ) v in = 0v, no load -40 to +85 675 mv +25 -285 -210 input voltage clamp (v clamp ) i in = -3.5ma -40 to +85 -390 mv +25 -5.5 -4.8 clamp charge current v in = v clamp - 100mv -40 to +85 -6.8 ma +25 1.9 2.7 clamp discharge current v in = 500mv -40 to +85 3.2 a +25 5.6 6 6.4 voltage gain (a v ) r l = 150 ? -40 to +85 5.55 6.45 db output characteristics +25 4.6 4.79 output voltage high swing v in = 3.0v, r l = 150 ? to gnd -40 to +85 4.5 v +25 80 95 v in = 1.5v, out shorted to gnd through 10? -40 to +85 77 ma +25 -102 -87 output short-circuit current (i sc ) v in = 0.5v, out shorted to v cc through 10? -40 to +85 -78 ma power supply operating voltage range (v cc ) +25 3.0 5.5 v +25 40 50 power supply rejection ratio (psrr) v cc = 3.5v to 5.0v -40 to +85 38 db +25 6 9.5 quiescent current (i q ) v in = 0.5v, disable = v cc , r l = 0 ? -40 to +85 11.5 ma +25 0.1 18 supply current when disabled disable = 0v -40 to +85 20 a dynamic performance -0.1db bandwidth +25 6 mhz -3db bandwidth +25 8 mhz filter response (normalized gain) f in = 27mhz +25 47 db slew rate 2v output step, 80% to 20% +25 35 v/s pal dc-coupled +25 0.85 % differential gain error (dg) pal ac-coupled +25 0.85 % pal dc-coupled +25 1 differential phase error (dp) pal ac-coupled +25 1.4 group delay variation (d/dt) difference between 400khz and 6.5mhz +25 28 ns fall time 2v output step, 80% to 20% +25 34 ns rise time 2v output step, 80% to 20% +25 33 ns power-down disable disable (logic-low threshold) v cc = 5v +25 0.4 v disable (logic-high threshold) v cc = 5v +25 1.2 v
8mhz, 5th-order video driver SGM9114 with 6db gain 5 sg micro corp www.sg-micro.com typical performance characteristics at v cc = 5v, t a = +25 , r l = 150 ? , output ac-coupled, unless otherwise noted. gain vs. frequency phase vs. frequency -15 -12 -9 -6 -3 0 3 0.1 1 10 100 frequency (mhz) normalized gain (db) -270 -180 -90 0 90 180 270 0.1 1 10 100 frequency (mhz) phase (degree) large signal step res ponse small signal step response -1.80 -1.20 -0.60 0.00 0.60 1.20 1.80 -0.25 -0.05 0.15 0.35 0.55 0.75 time (s) output voltage (v) -0.18 -0.12 -0.06 0.00 0.06 0.12 0.18 -0.25 -0.05 0.15 0.35 0.55 0.75 time ( s) output voltage (v) group delay vs. frequency gain error vs. temperature -100 -60 -20 20 60 100 0.1 1 10 100 frequency (mhz) group delay (ns) 0 0.02 0.04 0.06 0.08 0.1 0.12 -40 -15 10 35 60 85 temperature ( ) gain error (%)
8mhz, 5th-order video driver SGM9114 with 6db gain 6 sg micro corp www.sg-micro.com typical performance characteristics at v cc = 5v, t a = +25 , r l = 150 ? , output ac-coupled, unless otherwise noted. quiescent current vs. temperature quiescent current vs. supply voltage 2 4 6 8 10 -40 -15 10 35 60 85 temperature ( ) quiescent current (ma) 5 5.5 6 6.5 7 33.544.555. supply voltage (v) quiescent current (ma) 5 output voltage swing to the positive rail vs. output current output voltage swing to the negative rail vs. output current 4 4.2 4.4 4.6 4.8 5 0 2040608010 output current (ma) output voltage (v) 0 +85 -40 +25 0 0.2 0.4 0.6 0.8 1 1.2 1.4 0 2040608010 output current (ma) output voltage (v) 0 +85 -40 +25
8mhz, 5th-order video driver SGM9114 with 6db gain 7 sg micro corp www.sg-micro.com application information the SGM9114 low cost, integrated, 5th-order video filter is intended to repl ace passive lc filters and drivers in low voltage portable video applications. the SGM9114 input must be ac-coupled because the input capacitor stores the clamp voltage. it needs a typical value of 0.1f for t he input clamp to meet the line droop specification. the SGM9114 output can drive an ac- or dc-coupled doubly terminated coax (150 ? ) load (see figure 1 ). dc coupling the output remove s the need for an expensive and large output coupling capacitor (see figure 2 ). if an ac-coupled output is ne eded, the sag correction circuit can be used to reduce the ac output coupling capacitor value. offering sag correction, fixed gain of 6db, and a 5th-order low pass filter in a tiny space saving package makes the SGM9114 well suited for space sensitive applications such as digital cameras, cellular phones and other portable devices. enable/shutdown the SGM9114 has a shutdown feature that disables the output and reduces the qui escent current to 0.1 a. this feature is particularly useful in portable applications, such as video cameras, hand held gaming devices and cellular phones, where video filtering and driving capability are required. internal sync clamp the typical embedded video dac operates from a ground referenced single supply. this becomes an issue because the lower level of the sync pulse output may be at a 0v reference level to some positive level. the problem is that presenting a 0v input to most single supply driven amplifiers will saturate the output stage of the amplifier, resulting in a clipped sync tip and degrading the video image. a larger positive reference may offset the input above its positive range. the SGM9114 features an internal sync clamp and offset function to level shift the entire video signal to the best level before it reaches the input of the amplifier stage. these features are also helpful to avoid saturation of the output stage of the amplifier by setting the signal closer to the optimal voltage range. the typical application of the SGM9114 is shown in figure 1 . the ac-coupled video sync signal is pulled negative by a current source at the input of the comparator amplifier. when the sync tip goes below the comparator threshold, the co mparator output is driven negative, and the pmos dev ice turns on, clamping sync tip to near ground level. the network triggers on the sync tip of video signal. r l out sag SGM9114 5th-order filter 6db level shifter in v cc gnd v cc = 3.0v to 5.5v r in c in 0.1 f disable 22f 47f r out c out c s 75 75 10k to external power supply or control i/o figure 1. ac-coupled input/ac-coupled output
8mhz, 5th-order video driver SGM9114 with 6db gain 8 sg micro corp www.sg-micro.com application information sag correction the SGM9114 can use the sag configuration if an ac-coupled output video signal is needed. sag correction refers to the low-frequency compensation for the high pass filter formed by the 150 ? load and the output capacitor. in video applications, the cutoff frequency must be low enough to pass the vertical sync interval to avoid field tilt. this cutoff frequency should be less than 5hz, and the coupling capacitor must be very large in normal configuration, typically 220f. in sag configuration, the SGM9114 removes the need for large coupling capacitors, and instead only requires one 22f and one 47f capacitors ( figure 1 ) to achi eve the same performance as the large capacitor. the sallen key low pass filter the sallen key in a classic low pass configuration is illustrated in figure 1 . the filter provides a very stable low pa ss function, and in the case of the SGM9114, a 5th-order roll-off at around 8mhz. the 5th-order function is accomplished with an rc low pass network placed in series with and before the sallen key. one pole provided by the rc network and poles two and three provided by the sallen key produce a nice 5th-order roll-off at around 8mhz. layout and power-supply bypassing the SGM9114 operates from single 3.0v to 5.5v supply. bypass the supply with a 0.1f capacitor as close to the pin as possible. it is recommended to use microstrip and stripline techniques to obtain full bandwidth. to ensure that the pc board does not degrade the device?s performance, design it for a frequency greater than 1ghz. pay careful attention to inputs and outputs to avoid large parasitic capacitance. whether or not you use a constant-impedance board, observe the following design guidelines: do not use ic sockets; they increase parasitic capacitance and inductance. do not use wire-wrap boards ; they are too inductive. use surface-mount instead of through-hole components for better, high-frequency performance. use a pc board with at least two layers; it should be as free from voids as possible. keep signal lines as short and as straight as possible. do not make 90 turns; round all corners. out sag SGM9114 5th-order filter 6db level shifter in v cc gnd v cc = 3.0v to 5.5v r in c in 0.1 f r out r l 75 75 10k to external power supply or control i/o disable figure 2. ac-coupled input/dc-coupled output
package information tx00034.000 sg micro corp www.sg-micro.com package outline dimensions sot-23-6 e e1 e e1 b d a1 a2 a c l 0.2 2.59 0.99 0.95 0.69 recommended land pattern (unit: mm) dimensions in millimeters dimensions in inches symbol min max min max a 1.050 1.250 0.041 0.049 a1 0.000 0.100 0.000 0.004 a2 1.050 1.150 0.041 0.045 b 0.300 0.500 0.012 0.020 c 0.100 0.200 0.004 0.008 d 2.820 3.020 0.111 0.119 e 1.500 1.700 0.059 0.067 e1 2.650 2.950 0.104 0.116 e 0.950 bsc 0.037 bsc e1 1.900 bsc 0.075 bsc l 0.300 0.600 0.012 0.024 0 8 0 8
package information tx10000.000 sg micro corp www.sg-micro.com tape and reel information note: the picture is only for reference. pl ease make the object as the standard. key parameter list of tape and reel package type reel diameter reel width w1 (mm) a0 (mm) b0 (mm) k0 (mm) p0 (mm) p1 (mm) p2 (mm) w (mm) pin1 quadrant sot-23-6 7 9.5 3.17 3.23 1.37 4. 0 4.0 2.0 8.0 q3 dd0001 reel width (w1) reel diameter reel dimensions tape dimensions direction of feed p2 p0 w p1 a0 k0 b0 q1 q2 q4 q3 q3 q4 q2 q1 q3 q4 q2 q1
package information tx20000.000 sg micro corp www.sg-micro.com carton box dimensions note: the picture is only for reference. pl ease make the object as the standard. key parameter list of carton box reel type length (mm) width (mm) height (mm) pizza/carton 7 (option) 368 227 224 8 7 442 410 224 18 dd0002

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