limiting amplifiers - smt 6 6 - 1 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier functional diagram electrical specifcations, t a = +25 c, vcc = +3.3v, vee = 0v, icc = 90ma t he h m c865 l c3c is ideal for: ? 100 g bps e thernet ? 100 g bps l ong haul ? 40 g bps (d)q ps k r eceivers ? broadband g ain block for t est & m easurement e quipment s upports data r ates up to 43 g bps. l ow p ower dissipation: 300 mw @ vcc = +3.3v differential s mall s ignal g ain: 30 db high i nput s ensitivity: 10 mvp-p differential 3-db bandwidth: 26.5 g hz a djustable output voltage s wing up to 800 mvp-p differential 16 l ead 3x3mm smt package: 9mm 2 t he h m c865 l c3c is a l imiting a mplifer packaged in a leadless 3x3 mm ceramic surface mount package which supports up to 43 g bps operation. t he amplifer provides 30 db of differential gain. output voltage swing is adjustable up to 800 mvp-p differential by using the v a c analog control input. a dditive rms jitter is less than 300 fs for 32 g bps operation. h m c865 l c3c has an internal dc offset correction circuit which provides differential 10 mvpp input sensitivity. a ll input/output rf signals of the h m c865 l c3c are terminated with 50 ohms to +3.3v on chip and may be either a c or dc coupled. t he outputs of the device can be operated either differentially or single- ended. outputs can be connected directly to 50 ohm terminated system referenced to 3.3v, while dc blocking capacitors may be used if the terminating system is 50 ohms to a non 3.3v level. p arameter conditions m in. t yp. m ax. units differential s mall s ignal g ain v a c = 1.6v 30 db data r ate 32 g bps s mall s ignal bandwidth 3-db cutoff 26.5 g hz i nput r eturn l oss up to 26.5 g hz 10 db output r eturn l oss up to 26.5 g hz 10 db i nput s ensitivity differential 10 mvp-p m aximum i nput s wing differential 1,000 mvp-p differential output s wing a djustable by using v a c 250 800 mvp-p r ise t ime [1] 20% - 80% @ 32 g bps 13 ps typical applications features general description [1] vin = differential 50 mvp-p, fn = 32 g bps pr b s 2 23 -1 pattern
limiting amplifiers - smt 6 6 - 2 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier p arameter conditions m in. t yp. m ax. units f all t ime [1] 20% - 80% @ 32 g bps 13 ps a dditive r andom jitter [2] vin = 50 mvp-p (differential) 300 fs i nput referred voltage noise @ 15 g hz @ 25 g hz 31 32 nv/rthz nv/rthz va c 1 1.6 v output p 1db @ 16 g hz -6 dbm p ower s upply voltage 3.13 3.3 3.47 v s upply current v a c = 1.6v 90 ma operating t emperature -40 25 85 c l ow f requency cut-off 100 n f off chip capacitor is used 10 khz [1] vin = differential 50 mvp-p, fn = 32 g bps pr b s 2 23 -1 pattern [2] r andom jitter is measured with 32 g bps 10101 pattern electrical specifcations (conditions) differential gain & return loss vs. frequency [1][2] differential output vs. supply voltage [1] -40 -30 -20 -10 0 10 20 30 40 0 5 10 15 20 25 30 35 40 s21 s11 s22 frequency (ghz) response (db) 400 600 800 1000 3.13 3.19 3.24 3.3 3.36 3.41 3.47 +25c +85c -40c supply voltage vcc (v) differential voltage (mvp-p) [1] v a c = 1.6v [2] vcc = 3.3v differential output vs. control voltage [2] differential output vs. vinput & temperature @ 16 ghz [1][2] 0 200 400 600 800 1000 1 1.1 1.2 1.3 1.4 1.5 1.6 +25c +85c -40c control voltage vac (v) differential voltage (mvp-p) 10 100 1000 1 10 100 1000 +25c +85c -40c single-ended vin (mvp-p) differential voltage (mvp-p)
limiting amplifiers - smt 6 6 - 3 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier differential output vs. vinput & supply voltage @ 16 ghz [1] differential output vs. vinput & frequency [1] [2] 10 100 1000 1 10 100 1000 vcc = 3.30v vcc = 3.13v vcc = 3.47v single-ended vin (mvp-p) differential voltage (mvp-p) 10 100 1000 1 10 100 1000 2 ghz 10 ghz 16 ghz 20 ghz single-ended vin (mvp-p) differential voltage (mvp-p) [1] v a c = 1.6v [2] vcc = 3.3v [3] i nput data: differential 50 mvp-p 32 g bps nr z pr b s 2 23 -1 pattern peak to peak jitter vs. supply voltage [1][3] dc current vs. supply voltage [1][3] rise & fall time vs. supply voltage [1][3] dc current vs. control voltage [2][3] 0 25 50 75 100 125 150 3.13 3.19 3.24 3.3 3.36 3.41 3.47 +25c +85c -40c supply voltage vcc (v) dc current (ma) 4 8 12 16 3.13 3.19 3.24 3.3 3.36 3.41 3.47 rise time fall time supply voltage vcc (v) rise time, fall time 20%-80% (ps) 2 3 4 5 6 7 8 3.13 3.19 3.24 3.3 3.36 3.41 3.47 supply voltage vcc (v) p-p jitter (ps) 0 25 50 75 100 125 150 1 1.1 1.2 1.3 1.4 1.5 1.6 +25c +85c -40c control voltage vac (v) dc current (ma)
limiting amplifiers - smt 6 6 - 4 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier 32 gbps single-ended output eye diagram 22.5 gbps single-ended output eye diagram 40 gbps single-ended output eye diagram m easurements current m inimum m aximum t otal m eas e ye a mp 362 mv 361 mv 362 mv 63 jitter p-p 4.978 ps 4.822 ps 5.444 ps 63 r ise t ime 13.84 ps 13.84 ps 14.00 ps 63 f all t ime 13.22 ps 11. 20 ps 13.53 ps 63 m easurements current m inimum m aximum t otal m eas e ye a mp 388 mv 387 mv 388 mv 83 jitter p-p 8.000 ps 5.778 ps 8.000 ps 83 r ise t ime 14.22 ps 13.78 ps 14.67 ps 83 f all t ime 13.78 ps 13.33 ps 13.78 ps 83 m easurements current m inimum m aximum t otal m eas e ye a mp 352 mv 352 mv 352 mv 60 jitter p-p 5.333 ps 4.444 ps 5.333 ps 60 r ise t ime 11.78 ps 11.3 3 ps 12.00 ps 60 f all t ime 12.00 ps 11. 56 ps 12.00 ps 60 t ime s cale: 7 ps/div a mplitude s cale:100 mv/div t est conditions: v a c = 1.6v, vcc = 3.3v i nput data: differential 50 mvp-p 32 g bps nr z pr b s 2 23 -1 pattern t ime s cale: 20 ps/div a mplitude s cale: 81.6 mv/div t est conditions: v a c = 1.6v, vcc = 3.3v i nput data: differential 50 mvp-p 22.5 g bps nr z pr b s 2 23 -1 pattern t ime s cale: 10 ps/div a mplitude s cale: 80.1 mv/div t est conditions: v a c = 1.6v, vcc = 3.3v i nput data: differential 80 mvp-p 40 g bps nr z pr b s 2 23 -1 pattern
limiting amplifiers - smt 6 6 - 5 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier p ower s upply voltage (vcc) -0.5v to +3.6v i nput voltage (vcc -1.3v) to (vcc +0.5) output voltage (vcc -1v) to (vcc +0.5) output a mplitude control voltage (v a c) -0.5v to +2.5v junction t emperature 125 c continuous p diss ( t = 85c) (derate 13.10 mw/c above 85c) 0.52w t hermal r esistance ( r th ) (junction to ground paddle) 76.32 c/w s torage t emperature -65 to 125 c operating t emperature -40 to +85 c absolute maximum ratings input signal 32 gbps input & output eye diagrams output signal current m inimum m aximum t otal m eas e ye a mp 9.27 mv 9.25 mv 9.27 mv 36 jitter p-p 10.733 ps 7. 9 3 3 p s 10.733 ps 51 r ise t ime 8.56 ps 8.24 ps 40.13 ps 51 f all t ime 10.11 ps 4.04 ps 10.27 ps 51 current m inimum m aximum t otal m eas e ye a mp 219 mv 219 mv 220 mv 55 jitter p-p 5.444 ps 4.822 ps 5.444 ps 55 r ise t ime 11.9 3 ps 14.78 ps 15.40 ps 55 f all t ime 14.78 ps 14.78 ps 15.40 ps 55 t ime s cale: 7 ps/div a mplitude s cale: 2.8 mv/div t est conditions: v a c = 1.6v, vcc = 3.3v t ime s cale: 7 ps/div a mplitude s cale: 60 mv/div t est conditions: v a c = 1.6v, vcc = 3.3v ele c tr o stati c sensiti v e de v ic e ob ser v e h an d ling pre c a u tio ns
limiting amplifiers - smt 6 6 - 6 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier outline drawing n o tes : 1. pa ck age body material : alu mina 2. lea d an d gr ou n d pa dd le plating : 30-80 mi c r o in ch es g o l d ov er 50 mi c r o in ch es minim u m ni ck el . 3. d imensi o ns are in in ch es [ millimeters ]. 4. lea d spa c ing to leran c e is n o n -cu m u lati v e . 5. pa ck age w arp s h all n ot e xc ee d 0.05mm d at u m -c- 6. all gr ou n d lea d s m u st b e s o l d ere d to p cb rf gr ou n d. p in n umber f unction description i nterface s chematic 1, 4, 9, 12 gn d s ignal grounds should be connected to 0v. 2, 3 inp , inn data i nputs 6, 7 vee s upply grounds should be connected to 0v. pin descriptions
limiting amplifiers - smt 6 6 - 7 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier p in n umber f unction description i nterface s chematic 8 va c output amplitude control voltage 10, 11 q n , q p data outputs. 13, 14 c n , c p f ilter capacitor for offset correction. connect 100n f capacitor between c p and c n 15, 16 vcc p ositive s upply g round p addle gn d g round paddle must be connected to dc ground. pin descriptions (continued)
limiting amplifiers - smt 6 6 - 8 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier evaluation pcb t he circuit board used in the application should use rf circuit design techniques. s ignal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. a sufficient number of via holes should be used to connect the top and bottom ground planes. t he evaluation circuit board shown is available from hittite upon request. list of materials for evaluation pcb 128123 [1] i tem description j1 -j3, j8 dc p in j9 - j12 k-type connector c1, c11 0.1 f capacitor, 0603 p kg. c2, c12 1000 p f capacitor, 0603 p kg. c15 0.1 f capacitor, 0402 p kg. c16, c18 4.7 f capacitor, t antalum r 3, r 5, r 8 0 ohm r esistor, 0402 p kg. r7 0 ohm r esistor, 0603 p kg. u1 h m c865 l c3c l imiting a mplifer p cb [2] 126150 e valuation p cb [1] r eference this number when ordering complete evaluation p cb [2] circuit board m aterial: a rlon 25 fr or r ogers 4350
limiting amplifiers - smt 6 6 - 9 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier application circuit component value c2, c12 1 n f c1, c11, c15 0.1 f c16, c18 4.7 f
limiting amplifiers - smt 6 6 - 10 for price, delivery and to place orders: hittite microwave corporation, 20 alpha road, chelmsford, ma 01824 phone: 978-250-3343 fax: 978-250-3373 order on-line at www.hittite.com application support: phone: 978-250-3343 or apps@hittite.com hmc865lc3c v 0 2.0 911 32 gbps limiting amplifier application information setting the output swing using external resistor rc t he h m c865 l c3c features output swing level adjustment by using v a c pin. output swing can be adjusted to the desired level by applying a dc voltage to v a c pin. differential output swing vs. control voltage relationship is given in the plot below. differential output vs. control voltage 0 200 400 600 800 1000 1 1.1 1.2 1.3 1.4 1.5 1.6 +25c +85c -40c control voltage vac (v) differential voltage (mv) i n order to adjust the dc voltage on v a c pin a resistor, r c, should be connected between v a c pin and vcc as shown in the fgure below. t he value of the resistor can be chosen using the following equation as a function of v a c. v a c dc voltage value can be chosen by using the plot given above.
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