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sgm8051/2/4 sgm8053/5 product description the sgm8051/3 (single), sgm8052/5 (dual), SGM8054 (quad) are rail-to-rail output voltage feedback amplifiers offering ease of use and low cost. they have bandwidth and slew rate typically found in current feedback amplifiers. all have a wide input common-mode voltage range and output voltage swing, making them easy to use on single supplies as low as 2.5 v. despite being low cost, the sgm8051 series provide excellent overall performance. they offer wide bandwidth to 250 mhz (g = +1) along with 0.1 db flatness out to 37 mhz g = +2 and offer a typical low power of 2.3 ma/amplifier. the sgm8051 series is low di stortion and fast settling make it ideal for buffering high speed a/d or d/a converters. the sgm8053/5 has a power-down disable feature that reduces the supply current to 75 a. these features make the sgm8053/5 ideal for portable and battery-powered applications where size and power are critical. all are specified over the extended ? 40c to +125c temperature range. pin configurations (top view) 250mhz, rail-to-rail output cmos operational amplifier features ? low cost ? rail-to-rail output 2mv typical v os ? high speed 250 mhz, ?3 db bandwidth (g = +1) 130 v/ s, slew rate 58 ns settling time to 0.1% with 2v step ? operates on 2.5 v to 5.5 v supplies ? input voltage range = ? 0.2 v to + 3.8 v with v s = 5 v ? excellent video specs (r l = 150 , g = +2) gain flatness 0.1db to 37 mhz diff gain: 0.03 % , diff phase: 0.08 degree ? low power 2.3 ma/amplifier typical supply current 75a/amplifier when disabled (sgm8053/5 only) ? small packaging sgm8051 available in sot23-5 and so-8 sgm8052 available in msop-8 and so-8 sgm8053 available in sot23-6 and so-8 SGM8054 available in tssop-16 and so-16 SGM8054 available in tssop-14 and so-14 sgm8055 available in msop-10 applications imaging photodiode preamp professional video and cameras hand sets dvd/cd base stations filters a-to-d driver small signal frequency response -15 -12 -9 -6 -3 0 3 1 10 100 1000 frequency(mhz) normalized gain(db) vo = 0.1v p-p g = +1 r l = 1k r f = 24 g = +2 r l = 150 r f = 887 rev. d sg microelectronics co, ltd tel: 86/10/51798160/80 www.sg-micro.com
sgm8051/2/3/4/5 electrical characteristics : v s = +5v (g=+2, r f =887 , r l = 150 , unless otherwise noted) sgm8051/2/3/4/5 typ min/max over temperature parameter condition +25 +25 0 to70 -40 to 85 -40 to 125 units min/ max dynamic performance -3db small signal bandwidth gain-bandwidth product bandwidth for 0.1db flatness slew rate rise-and-fall time settling time to 0.1% overload recovery time g = +1, vo = 0.1 v p-p, r f = 24 ? , r l = 150 ? g = +1, vo = 0.1 v p-p, r f = 24 ? , r l = 1k ? g = +2, vo = 0.1 v p-p, r l = 50 ? g = +2, vo = 0.1 v p-p, r l = 150 ? g = +2, vo = 0.1 v p-p, r l = 1k ? g = +2, vo = 0.1 v p-p, r l = 10k ? g = +10, r l =150 ? g = +10, r l =1k ? g = +2, vo = 0.1 v p-p, r l =150 ? , r f =887 ? g = +1, 2v output step g = +2, 2v output step g = +2, 4v output step g = +2, vo = 0.2 v p-p, 10% to 90% g = +2, vo = 2 v p-p, 10% to 90% g = +2, 2 v output step v in q g = +v s 180 250 40 80 130 160 90 120 37 93/-118 116/-103 130/-130 4 14 58 18 mhz mhz mhz mhz mhz mhz mhz mhz mhz v/ s v/ s v/ s ns ns ns ns typ typ typ typ typ typ typ typ typ typ typ typ typ typ typ typ noise/distortion performance harmonic distortion 2nd-harmonic 3rd-harmonic input voltage noise input current noise differential gain error (ntsc) differential phase error (ntsc) g = +2, f = 1mhz, v o = 2vp-p, r l = 150 ? g = +2, f = 1mhz, v o = 2vp-p, r l = 150 ? f = 1 mhz f = 1 mhz g = +2, r l = 150 ? g = +2, r l = 150 ? 8.1 0.03 0.08 dbc dbc nv/ hz f a/ hz % degree typ typ typ typ typ typ dc performance input offset voltage (v os ) input offset voltage drift input bias current i b input offset current i os open-loop gain (a ol ) v o = 0.3 v to 4.7 v, r l = 150 ? v o = 0.2 v to 4.8 v, r l = 1k ? 2 4.4 6 2 80 104 8 75 92 8.9 74 91 9.5 74 91 9.8 73 80 mv v/ pa pa db db max typ typ typ min min input characteristics input common-mode voltage range (v cm ) common-mode rejection ratio (cmrr) v cm = - 0.1 v to + 3.5 v -0.2 to +3.8 80 66 65 65 62 v db typ min output characteristics output voltage swing from rail output current closed-loop output impedance r l = 150 ? r l = 1k ? f 100khz 0.12 0.03 130 0.08 100 95 90 84 v v ma ? typ typ min typ power-down disable (sgm8053/5 only) turn-on time turn-off time disable voltage-off disable voltage-on 236 52 0.8 2 ns ns v v typ typ max min power supply operating voltage range quiescent current (per amplifier) supply current when disabled per amplifier (sgm8053/5 only) power supply rejection ratio (psrr) ? vs = + 2.7v to + 5.5v, v cm = (-v s ) + 0.5 2.3 75 80 2.5 5.5 2.9 120 67 2.7 5.5 3.4 127 67 2.7 5.5 3.8 130 65 2.7 5.5 4 137 62 v v ma a db min max max max min specifications subject to change without notice.
sgm8051/2/3/4/5 package/ordering information model channel order number package description package option marking information sgm8051xn5/tr sot23-5 tape and reel, 3000 8051 sgm8051 single sgm8051xs/tr so-8 tape and reel, 2500 sgm8051xs sgm8052xms/tr msop-8 tape and reel, 3000 sgm8052xms sgm8052 dual sgm8052xs/tr so-8 tape and reel, 2500 sgm8052xs sgm8053xn6/tr sot23-6 tape and reel, 3000 8053 sgm8053 single with shutdown sgm8053xs/tr so-8 tape and reel, 2500 sgm8053xs SGM8054xs14 so-14 tube, 50 SGM8054xs14 SGM8054xts14 tssop-14 tape and reel, 3000 SGM8054xts14 SGM8054xs/tr so-16 tape and reel, 2500 SGM8054xs SGM8054 quad SGM8054xts tssop-16 tape and reel, 3000 SGM8054xts sgm8055 dual with shutdown sgm8055xms/tr msop-10 tape and reel, 3000 sgm8055xms absolute maximum ratings supply voltage, v+ to v- ......................................... 7.5 v common-mode input voltage ........................................ (?v s )? 0.5 v to (+v s ) +0.5v storage temperature range ................ ?6 5 to +150 junction temperature ..............................................................160 operating temperature range ........... ?55 to +150 package thermal resistance @ t a = 25 sot23-5, ja ......................................................... 190 /w sot23-6, ja ......................................................... 190 /w so-8, ja ..................................................................125 /w msop-8, ja .......................................................... 216 /w msop-10, ja ........................................................ 216 /w so-16, ja ................... ..................... ........................ 82 /w tssop-16, ja ....................... ................... ............. 105 /w lead temperature range (soldering 10 sec) ......................................... 260 esd susceptibility hbm...........................................................................1000v mm...............................................................................400v notes 1. 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 imp lied. exposure to absolute maximum rati ng conditions for extended periods may affect device reliability. caution this integrated circuit can be damaged by esd. shengbang micro-electronics 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.
sgm8051/2/3/4/5 typical performance characteristics at t a = +25 , v s = +5v, g = +2, r f = 887 , r g = 887 , and r l = 150 connected to vs/2,unless otherwise noted. non-inverting small signal frequency response -15 -12 -9 -6 -3 0 3 1 10 100 1000 frequency(mhz) normalized gain(db) g = +5 vo = 0.1v p-p g = +10 g = +2 g = +1 r f = 24 inverting small signal frequency response -15 -12 -9 -6 -3 0 3 0.1 1 10 100 1000 frequency(mhz) normalized gain(db) g = -1 vo = 0.1v p-p g = -10 g = -5 g = -2 frequency response for various r l -15 -12 -9 -6 -3 0 3 1 10 100 1000 frequency(mhz) normalized gain(db) r l = 150 c l = 0pf vo = 0.1v p-p r l = 10k r l = 1k r l = 50 0.1db gain flatness for various r f -0.5 -0.4 -0.3 -0.2 -0.1 0 0.1 0.2 0.3 0.4 0.5 1 10 100 frequency(mhz) normalized gain(db) r f =1k r f =1k r f =1k vo = 0.1v p-p r f = 1k r f = 900 r f = 887 c l = 0pf frequency response for various c l -15 -12 -9 -6 -3 0 3 6 9 1 10 100 1000 frequency(mhz) normalized gain(db) rs = 0 vo = 0.1v p-p c l = 100pf c l = 47pf c l = 6pf frequency response vs.capacitive load -15 -12 -9 -6 -3 0 3 1 10 100 1000 frequency(mhz) normalized gain(db) vo = 0.1v p-p c l = 6pf r s = 100 c l = 47pf r s = 66.5 c l = 100pf r s = 37.4 r f = 887 r g = 887 sgm8051 + - r s c l v in vo r l =150 v+ v- (r l is optional)
sgm8051/2/3/4/5 typical performance characteristics at t a = +25 , v s = +5v, g = +2, r f = 887 , r g = 887 , and r l = 150 connected to vs/2,unless otherwise noted. large-signal disable/enable response -1 0 1 2 3 4 5 6 time(500ns/div) enabled disabled vs = 5v g = +2 f in = 2mhz output voltage(1v/div) v out = 2v disable volta g e(v) maximum output voltage vs.frequency 0 1 2 3 4 5 6 110100 frequency(mhz) output voltage(vp-p) vs = 5.5v maximum output voltage without slew-rate induced distortion vs = 2.7v non-inverting small signal step response non-inverting large signal step response time(50ns/div) time(50ns/div) disabled output isolation frequency response -90 -80 -70 -60 -50 -40 -30 -20 -10 0 1 10 100 1000 frequency(mhz) disabled isolation(db) vo = 0.2v p-p v disable = 0v r l = 1k output voltage(50mv/div) output voltage(500mv/div) rail - to - rail g = +2 r f = 887 ? r l = 1k ? 4.88v 0 v time(200ns/div)
sgm8051/2/3/4/5 typical performance characteristics at t a = +25 , v s = +5v, g = +2, r f = 887 , r g = 887 , and r l = 150 connected to vs/2,unless otherwise noted. closed-loop output impedance vs.frequency 0.01 0.1 1 10 100 1000 0.01 0.1 1 10 100 frequency(mhz) output impedance( ) r f = 887 r g = 887 sgm8051 + - zo v+ v- output settling time to 0.1% time(ns) output error(%) v o = 2v p-p 0.5 0.4 0.3 0.2 0.1 0 -0.1 -0.2 -0.3 -0.4 -0.5 0 20 40 60 80 100 120 input voltage noise spectral density vs.frequency 1 10 100 1000 0.01 0.1 1 10 100 1000 10000 frequency(khz) voltage noise(nv/ power-supply rejection ratio vs.frequency -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0.01 0.1 1 10 100 1000 frequency(mhz) psrr(db) -psrr +psrr common-mode rejection ratio vs.frequency -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 0.01 0.1 1 10 100 1000 frequency(mhz) cmrr(db) overload recovery time time(25ns/div) vs = 2.5v v in = 1.18v g = +2 2.5v 0v 1.18v
sgm8051/2/3/4/5 typical performance characteristics at t a = +25 , v s = +5v, g = +2, r f = 887 , r g = 887 , and r l = 150 connected to vs/2,unless otherwise noted. open-loop gain vs.temperature 70 80 90 100 110 120 -50 -30 -10 10 30 50 70 90 110 130 temperature() openCloop gain(db) r l = 150 r l = 1k cmrr and psrr vs.temperature 60 70 80 90 100 110 120 -50 -30 -10 10 30 50 70 90 110 130 temperature() cmrr,psrr(db) cmrr psrr r l = 150 shutdown current vs.temperature 40 45 50 55 60 65 70 75 80 -50 -30 -10 10 30 50 70 90 110 130 temperature() shutdown current( a) v s = 5v v s = 3v v s = 2.7v supply current vs.temperature 1 1.2 1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 -50 -30 -10 10 30 50 70 90 110 130 temperature() supply current(ma) v s = 5v v s = 3v v s = 2.7v output voltage swing vs.output current 0 1 2 3 4 5 0 25 50 75 100 125 150 output current(ma) output voltage(v) 25 135 -50 25 135 -50 v s = 5v sourcing current sinking current output voltage swing vs.output current 0 1 2 3 0 20 40 60 80 100 120 output current(ma) output voltage(v) 25 135 -50 25 135 -50 v s = 3v sourcing current sinking current
sgm8051/2/3/4/5 typical performance characteristics at t a = +25 , v s = +5v, g = +2, r f = 887 , r g = 887 , and r l = 150 connected to vs/2,unless otherwise noted. channel separation vs.frequency -120 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 0.1 1 10 100 1000 frequency(mhz) channel separation(db) offset voltage production distribution 0 3 6 9 12 15 18 21 24 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 offset voltage(mv) percent of amplifiers(%) typical production distribution of packaged units.
sgm8051/2/3/4/5 application notes driving capacitive loads the sgm805x family is optimized for bandwidth and speed, not for driving capacitive loads. output capacitance will create a pole in the amplifier?s feedback path, leading to excessive peaking and potential oscillation. if dealing with load capacitance is a requirement of the application, the two strategies to consider are (1) us ing a small resistor in series with the amplifier?s output and the load capacitance and (2) reducing the bandwidth of t he amplifier?s feedback loop by increasing the overall noise gain. figure 1 shows a unity gain follower using the series resistor strategy. the resistor isolates the output from the capacitance and, more importantly, creates a zero in the feedback path that compensates for the pole created by the output capacitance. v in v out sgm8051 c load r iso figure 1 . series resistor isolating capacitive load power-supply bypassing and layout the sgm805x family operates from either a single +2.7v to +5.5v supply or dual 1.35v to 2.75v supplies. for single-supply operation, bypass the power supply v dd with a 0.1 f ceramic capacitor which should be placed close to the v dd pin. for dual-supply operation, both the v dd and the v ss supplies should be bypassed to ground with separate 0.1 f ceramic capacitors. 2.2 f tantalum capacitor can be added for better performance. good pc board layout techniques optimize performance by decreasing the amount of stray capacitance at the op amp?s inputs and output. to decrease stray capacitance, minimize trace lengths and widths by placing external components as close to the device as possible. use surface-mount components whenever possible. for the high speed operational amplifier, soldering the part to the board directly is strongly recommended. try to keep the high frequency big current loop area small to minimize the emi (electromagnetic interfacing). sgm8051 v dd vn vp v ss v out 10f 0.1f 10f 0.1f sgm8051 vn vp v dd v ss (gnd) v out 10f 0.1f figure 2. amplifier with bypass capacitors grounding a ground plane layer is important for high speed circuit design. the length of the current path speed currents in an inductive ground return will create an unwanted voltage noise. broad ground plane areas will reduce the parasitic inductance. input-to-output coupling to minimize capacitive coupli ng, the input and output signal traces should not be parallel. this helps reduce unwanted positive feedback.
sgm8051/2/3/4/5 typical application circuits differential amplifier the circuit shown in figure 3 per forms the difference function. if the resistors ratios are equal ( r4 / r3 = r2 / r1 ), then v out = ( vp ? vn ) r 2 / r 1 + vref. vn vp v out sgm8051 vref r1 r2 r3 r4 figure 3. differential amplifier low pass active filter the low pass filter shown in figure 4 has a dc gain of (-r 2 /r 1 ) and the ?3db corner frequency is 1/2 r 2 c. make sure the filter is within the bandwidth of the amplifier. the large values of feedback resistors can couple with parasitic capacitance and cause undesired effects such as ringing or oscillation in high-speed amplifiers. keep resistors value as low as possible and consistent with output loading consideration. v in v out sgm8051 r1 r2 r3=r1//r2 c figure 4. low pass active filter driving video the sgm805x can be used in video applications like in figure 5 . v in sgm8051 r g r f 75 75 cable v out 75 g = 1 + r f / r g figure 5. typical video driving
sgm8051/2/3/4/5 package outline dimensions sot23-5 d e1 b a2 a a1 e l l c e1 0 0.20 e 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 0.400 0.012 0.016 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 0.950typ 0.037typ e1 1.800 2.000 0.071 0.079 l 0.700ref 0.028ref l1 0.300 0.600 0.012 0.024 0 8 0 8
sgm8051/2/3/4/5 package outline dimensions sot23-6 d e1 e b a2 a a1 e l l c e1 0 0.20 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 0.400 0.012 0.016 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 0.950typ 0.037typ e1 1.800 2.000 0.071 0.079 l 0.700ref 0.028ref l1 0.300 0.600 0.012 0.024 0 8 0 8
sgm8051/2/3/4/5 package outline dimensions so-8 c l d e e e1 a2 b a a1 dimensions in millimeters dimensions in inches symbol min max min max a 1.350 1.750 0.053 0.069 a1 0.100 0.250 0.004 0.010 a2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.190 0.250 0.007 0.010 d 4.780 5.000 0.188 0.197 e 3.800 4.000 0.150 0.157 e1 5.800 6.300 0.228 0.248 e 1.270typ 0.050typ l 0.400 1.270 0.016 0.050 0 8 0 8
sgm8051/2/3/4/5 package outline dimensions msop-8 c l d e e1 a1 e b a2 a dimensions in millimeters dimensions in inches symbol min max min max a 0.800 1.200 0.031 0.047 a1 0.000 0.200 0.000 0.008 a2 0.760 0.970 0.030 0.038 b 0.30 typ 0.012 typ c 0.15 typ 0.006 typ d 2.900 3.100 0.114 0.122 e 0.65 typ 0.026 typ e 2.900 3.100 0.114 0.122 e1 4.700 5.100 0.185 0.201 l 0.410 0.650 0.016 0.026 0 6 0 6
sgm8051/2/3/4/5 package outline dimensions msop-10 c l d e e1 a1 e b a2 a dimensions in millimeters dimensions in inches symbol min max min max a 0.800 1.200 0.031 0.047 a1 0.000 0.200 0.000 0.008 a2 0.760 0.970 0.030 0.038 b 0.30 typ 0.012 typ c 0.152 typ 0.006 typ d 2.900 3.100 0.114 0.122 e 0.50 typ 0.020 typ e 2.900 3.100 0.114 0.122 e1 4.700 5.100 0.185 0.201 l 0.410 0.650 0.016 0.026 0 6 0 6
sgm8051/2/3/4/5 package outline dimensions so-14 0.25 d e1 e b a3 a l2 l m e index 0.80.1 dep0.20.1 2.00.1 btm e-mark dep0.10.05 a1 a2 3 4 0.10 b b1 c c1 with plating base metal section b-b 2 1 r1 r l1 h bb h dimensions in millimeters symbol min nom max a 1.35 1.60 1.75 a1 0.10 0.15 0.25 a2 1.25 1.45 1.65 a3 0.55 0.65 0.75 b 0.36 0.49 b1 0.35 0.40 0.45 c 0.16 0.25 c1 0.15 0.20 0.25 d 8.53 8.63 8.73 e 5.80 6.00 6.20 e1 3.80 3.90 4.00 e 1.27 bsc l 0.45 0.60 0.80 l1 1.04 ref l2 0.25 bsc r 0.07 r1 0.07 h 0.30 0.40 0.50 0 8 1 6 8 10 2 6 8 10 3 5 7 9 4 5 7 9
sgm8051/2/3/4/5 package outline dimensions tssop-14 d e1 e a3 e index 1 .00.05 0.1 dep 0.10 +0 -0.1 #1 pin a2 a a1 2 3 1 r1 r s b b l2 l l1 b b1 c c1 base metal section b-b dimensions in millimeters symbol min nom max a 1.20 a1 0.05 0.15 a2 0.90 1.00 1.05 a3 0.34 0.44 0.54 b 0.20 0.28 b1 0.20 0.22 0.24 c 0.10 0.19 c1 0.10 0.13 0.15 d 4.86 4.96 5.06 e 6.20 6.40 6.60 e1 4.30 4.40 4.50 e 0.65 bsc l 0.45 0.60 0.75 l1 1.00 ref l2 0.25 bsc r 0.09 r1 0.09 s 0.20 1 0 8 2 10 12 14 3 10 12 14
sgm8051/2/3/4/5 package outline dimensions so-16 c l d e e e1 b a a1 a2 dimensions in millimeters dimensions in inches symbol min max min max a 1.350 1.750 0.053 0.069 a1 0.100 0.250 0.004 0.010 a2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 c 0.170 0.250 0.007 0.010 d 9.800 10.20 0.386 0.402 e 3.800 4.000 0.150 0.157 e1 5.800 6.200 0.228 0.244 e 1.270 (bsc) 0.050 (bsc) l 0.400 1.270 0.016 0.050 0 8 0 8
sgm8051/2/3/4/5 package outline dimensions tssop-16 d e e1 e b a2 a pin #1 ident. a a1 l h c a dimensions in millimeters dimensions in inches symbol min max min max d 4.900 5.100 0.193 0.201 e 4.300 4.500 0.169 0.177 b 0.190 0.300 0.007 0.012 c 0.090 0.200 0.004 0.008 e1 6.250 6.550 0.246 0.258 a 1.100 0.043 a2 0.800 1.000 0.031 0.039 a1 0.020 0.150 0.001 0.006 e 0.65 (bsc) 0.026 (bsc) l 0.500 0.700 0.020 0.028 h 0.25(typ) 0.01(typ) 1 7 1 7
sgm8051/2/3/4/5 revision history location page 9/05? data sheet changed from rev.a to rev.b added sgm8055 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . universal changes to product description, features, and pin configurations . . . . . . . . . . . . . . . . . . . . . . . . . . 1 changes to electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 updated package/ordering information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 11/06? data sheet changed from rev. b to rev. c changes to absolute maximum atings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 01/08? data sheet changed from rev. c to rev. d added SGM8054?s so-14 and tssop-14 packages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1, 3, 16, 17 sg microelectronics co., ltd a2608, no.72 north road xisanhuan, haidian district, beijing, china 100037 tel: 86-10-51798160/80 fax: 86-10-51798180-803 www.sg-micro.com

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