www.lansdale.com ml13055 wideband fsk receiver page 1 of 9 legacy device: motorola mc13055 the ml13055 is intended for rf data link systems using carrier frequencies up to 40 mhz and fsk (frequency shift keying) data rates up to 2.0 m baud (1.0 mhz). this design is similar to the ml3356, except that it does not include the oscillator/mixer. the if bandwidth has been increased and the detector output has been revised to a balanced configura- tion. the received signal strength metering circuit has been retained, as has the versatile data slicer/comparator. ? input sensitivity 20 v @ 40 mhz ? signal strength indicator linear over 3 decades ? easy application, few peripheral components ? operating temperature range t a = ?0 to +85? figure 1. block diagram and application circuit squelch adjust (meter) 40mhz if input (50 ) + + 10 11 14 12 13 15 9 16 2 8 7 6 5 4 3 l2 39pf 3.9k 3.9k 68pf 5.0k carrier detect 100pf data output 1.0k limiter v cc 0.1 27pf 0.01 l1 22pf 0.8v 1 0.01 0.01 v cc pin assignment comparator gnd comparator 10 16 15 14 13 12 + 11 9 8 7 6 5 4 3 2 limiter bias quad input detector out comparator v cc meter drive data out carrier detect limiter input 1 if ground quad bias if v cc p-dip 16 = ep plastic dip so 16 = -5p cross reference/ordering information motorola p-dip 16 MC13055P ml13055ep so 16 mc13055d ml13055-5p lansdale package note : lansdale lead free ( pb ) product, as it becomes available, will be identified by a part number prefix change from ml to mle . issue b
ml13055 lansdale semiconductor, inc. maximum ratings rating symbol value unit power supply voltage v cc(max) 15 vdc operating supply voltage range v2, v4 3.0 to 12 vdc junction temperature t j 150 c operating ambient temperature range t a -40 to +85 c storage temperature range t stg -65 to +150 c power dissipation, package rating p d 1.25 w electrical characteristics (v cc = 5.0 vdc, f o = 40 mhz, f mod = 1.0 mhz, ? f = 1.0 mhz, t a = 25 c, test circuit of figure 2.) characteristic conditions min typ max unit total drain current 20 25 ma data comparator pull?own current i16 10 ma meter drive slope versus input i12 4.5 7.0 9.0 a/db carrier detect pull?own current i13 1.3 ma carrier detect pull?p current i13 500 a carrier detect threshold voltage v12 690 800 1010 mv dc output current i10, i11 430 a recovered signal v10 - v1 1 350 mvrms sensitivity for 20 db s+n/n, bw = 5.0 mhz vin 20 vrms s+n/n at v in = 50 v v10 - v1 1 30 db input impedance @ 40 mhz r in c in pin 5, ground 4.2 4.5 k pf quadrature coil loading r in c in pin 9 to 8 7.6 5.2 k pf www.lansdale.com page 2 of 9 i2 + i4 issue b
lansdale semiconductor, inc. ml13055 figure 2. test circuit 2 16 15 14 13 12 11 10 9 8 7 6 5 4 3 detector output 3.9k 3.9k meter drive coils - shielded coilcraft uni-10/142 l1 gray 8 1/2 turns, nominal 300 nh l2 black 10 1/2 turns, nominal 380 nh carrier detect output l2 39pf 100pf 1.0k 0.1 0.01 0.01 l1 27pf input 22pf v cc 1 0.01 0.01 www.lansdale.com page 3 of 9 issue b
ml13055 lansdale semiconductor, inc. 8 20k 9 7 5 0.1 51 0.1 input ml13055 10 -100 -90 -80 -70 -50 -60 -40 -30 -20 -10 100 90 80 70 60 50 40 30 20 0 0 f, input frequency (mhz) v in , input limiting sensitivity (dbm) figure 3. overall gain, noise, am rejection figure 4. meter current versus signal figure 5. untuned input: limiting sensitivity versus frequency figure 6. untuned input: meter current versus frequency figure 7. limiting sensitivity and detuning versus supply voltage figure 8. detector current and power supply current versus supply voltage 800 0 100 3.0 v input -10 0 -20 -60 -40 -80 -60 -50 -40 -30 -20 -100 0 output f mod = 1.0 mhz ? f = 1.0 mhz signal input (dbm) amr 1.0 khz 30% noise 500 0 -20 -40 -60 -80 0 100 200 300 400 12 v -100 600 input signal (dbm) 600 700 500 400 300 200 100 90 80 70 60 50 40 30 20 10 0 0.1 51 0.1 20k 5 7 9 8 ml13055 1000 50 40 30 20 10 0 1.0 60 13 15 11 9.0 v cc , supply voltage (vdc) 7.0 5.0 3.0 0 0 200 400 600 800 f, input frequency (mhz) 1200 i2 + i4 i10 + i11 -50 15 40 3 40.2 40.1 40.0 39.9 39.8 39.7 39.6 39.5 39.4 39.3 13 1.0 39.2 11 9.0 5.0 7.0 3.0 0 -90 -80 -70 -60 -40 40 mhz v cc , supply voltage (vdc) limiting sensitivity v cc = 5.0 v, 7.0 v relative output (db) l12, meter current ( a) l12, meter current ( adc) v in , input limiting sensitivity (dbm) quad coil tuning (mhz) l10 + l11, detector current ( adc) l2 + i4, power supply current (ma) quadrature coil tuning -80 -70 -60 -50 -40 -30 -20 -10 input 0 dbm www.lansdale.com page 4 of 9 issue b
lansdale semiconductor, inc. ml13055 figure 9. recovered audio versus temperature figure 10. carrier detect threshold versus temperature figure 11. meter current versus temperature figure 12. input limiting versus temperature figure 13. input impedance, pin 5 1.0 5.0 1.0m 10m 20m 30m 50m 100m 0.5 200m 2.0 1.0 0.2 5.0 2.0 1.0 0.5 0.2 0 0.2 0.5 cp = 4pf rp = 4k y = 0.24 + j1.1 -30 140 120 100 80 60 40 20 0 -20 500 -60 -50 -40 -40 100 200 300 400 -20 -10 t a , ambient temperature ( c) -60 input 0 dbm 600 -60 140 120 100 80 60 40 20 0 -20 -40 -90 -80 -70 t a , ambient temperature ( c) -60 800 140 120 100 80 60 40 20 0 -20 -40 500 600 700 900 -50 -60 1000 t a , ambient temperature ( c) 2.0 140 120 100 80 60 40 20 0 -20 -40 -12 -10 -8.0 -6.0 -4.0 -2.0 0 4.0 t a , ambient temperature ( c) -60 v10, relative audio output (db) v12, carrier detect threshold (mv) l12, meter current ( a) v in , input limiting sensitivity (dbm) www.lansdale.com page 5 of 9 issue b
ml13055 lansdale semiconductor, inc. legacy information www.lansdale.com page 6 of 9 issue b
lansdale semiconductor, inc. ml13055 4 5 6 7 3 12 71 58 57 56 55 54 52 59 bb 13 14 15 16 17 18 19 20 21 22 23 24 25 26 60 61 62 63 64 45 28 27 25 46 65 26 35 9 15 31 32 29 53 30 33 34 37 38 10 11 36 8 39 48 51 50 49 47 66 67 68 69 70 13 72 73 74 76 77 83 81 84 87 86 85 91 89 82 92 78 79 92 80 94 2 16 14 1 90 figure 15. d figure 15. internal schematic www.lansdale.com page 7 of 9 issue b
ml13055 lansdale semiconductor, inc. general description the ml13055 is an extended frequency range fm if, quadrature detector, signal strength detector and data shaper. it is intended primarily for fsk data systems. the design is very similar to ml3356 except that the oscillator/mixer has been removed, and the frequency capability of the if has been raised about 2:1. the detector output configuration has been changed to a balanced, open-collector type to permit symmetrical drive of the data shaper (comparator). meter drive and squelch features have been retained. the limiting if is a high frequency type, capable of being operated up to 100 mhz. it is expected to be used at 40 mhz in most cases. the quadrature detector is internally coupled to the if, and a 2.0 pf quadrature capacitor is internally provided. the 20 db quieting sen- sitivity is approximately 20 v, tuned input, and the if can accept signals up to 220 mvrms without distortion or change of detector quiescent dc level. the if is unusual in that each of the last 5 stages of the 6 stage limiter contains a signal strength sensitive, cur- rent sinking device. these are parallel connected and buffered to produce a signal strength meter drive which is fairly linear for if input signals of 20 v to 20 mvrms (see figure 4). a simple squelch arrangement is provided whereby the meter current flowing through the meter load resistance flips a comparator at about 0.8 vdc above ground. the signal strength at which this occurs can be adjusted by changing the meter load resistor. the comparator (+) input and output are available to permit control of hys- teresis. good positive action can be obtained for if input signals of above 20 vrms. a resistor (r) from pin 13 to pin 12 will provide v cc /r of feedback cur- rent. this current can be correlated to an amount of sig- nal strength hysteresis by using figure 4. the squelch is internally connected to the data shaper. squelch causes the data shaper to produce a high (v cc ) output. the data shaper is a complete ?loating?comparator, with diodes across its inputs. the outputs of the quadra- ture detector can be fed directly to either or preferably both inputs of the comparator to produce a squared out- put swinging from v cc to ground in inverted or nonin- verted form. www.lansdale.com page 8 of 9 issue b
lansdale semiconductor, inc. ml13055 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: inch. 3. dimension l to center of leads when formed parallel. 4. dimension b does not include mold flash. 5. rounded corners optional. -a- b f c s h g d j l m 16 pl seating 18 9 16 k plane -t- m a m 0.25 (0.010) t dim min max min max millimeters inches a 0.740 0.770 18.80 19.55 b 0.250 0.270 6.35 6.85 c 0.145 0.175 3.69 4.44 d 0.015 0.021 0.39 0.53 f 0.040 0.70 1.02 1.77 g 0.100 bsc 2.54 bsc h 0.050 bsc 1.27 bsc j 0.008 0.015 0.21 0.38 k 0.110 0.130 2.80 3.30 l 0.295 0.305 7.50 7.74 m 0? 10? 0 ? 10? s 0.020 0.040 0.51 1.01 notes: 1. dimensioning and tolerancing per ansi y14.5m, 1982. 2. controlling dimension: millimeter. 3. dimensions a and b do not include mold protrusion. 4. maximum mold protrusion 0.15 (0.006) per side. 5. dimension d does not include dambar protrusion. allow able dambar protrusion shall be 0.127 (0.005) total in excess of the d dimension at maximum material condition. 18 16 9 seating plane f j m r x 45 g 8 pl p -b- -a- m 0.25 (0.010) b s -t- d k c 16 pl s b m 0.25 (0.010) a s t dim min max min max inches millimeters a 9.80 10.00 0.386 0.393 b 3.80 4.00 0.150 0.157 c 1.35 1.75 0.054 0.068 d 0.35 0.49 0.014 0.019 f 0.40 1.25 0.016 0.049 g 1.27 bsc 0.050 bsc j 0.19 0.25 0.008 0.009 k 0.10 0.25 0.004 0.009 m 0? 7? 0? 7? p 5.80 6.20 0.229 0.244 r 0.25 0.50 0.010 0.019 p-dip 16 outline dimension plastic package (ml13055ep) case 648-08 issue r so 16 plastic package (ml13055-5p) case 751b-05 (so-16) issue j lansdale semiconductor reserves the right to make changes without further notice to any products herein to improve reliabili- ty, function or design. lansdale 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. ?ypical parameters which may be provided in lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. all operating parameters, including ?ypicals must be validated for each customer application by the customer s technical experts. lansdale semiconductor is a registered trademark of lansdale semiconductor, inc. www.lansdale.com page 9 of 9 issue b
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