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| 1/19 www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. hdmi switch ics BU16006KV, bu16018kv, bu16024kv, bu16027kv description these devices control are simple. it requires only 3.3v source and a few gpio controls. termination resistors (50 ? ) are integrated at all tmds input port. when chann el is not selected, tmds input termination resistors are turned off and tmds inputs are high impedance. these devices are also integrated equalizer circuit to adapt long cable and ddc active buffer function to isolate capacitance. features 1) supports 2.25 gbps signaling rate for 480i /p, 720p, and 1080i/p resolution to 12-bit color depth 2) compatible with hdmi 1.3a 3) 5v tolerance to all ddc and hpd_sink inputs 4) integrated active ddc buffer 5) integrated switchable 50 ? termination resistors 6) integrated equalizer circuit to adapt long cable 7) hbm esd protection exceeds 10kv 8) 3.3v fixed supply 9) rohs compatible applications digital tv, audio video receiver, digital projector, dvi or hdmi switch box line up matrix part no. power supply (v) esd (kv) input and output data rate (gbps) hot plug control termination resistor switch control switching method ddc buffer type equalizer high speed mode package rohs bu16018kv 3 to 3.6 10 3 input 1 output 2.25 yes sync hpd gpio active fixed yes vqfp80 yes bu16027kv 3 to 3.6 10 3 input 1 output 2.25 yes sync s1/s2 gpio active fixed yes (always on) vqfp64 yes BU16006KV 3 to 3.6 10 2 input 1 output 2.25 yes sync hpd gpio active fixed yes (always on) vqfp64 yes bu16024kv 3 to 3.6 10 1 input 1 output 2.25 yes sync hpd - active fixed yes vqfp48c yes other line up hdmi switch adapted ?repeater? and ?source? equipment part no. power supply (v) esd (kv) input and output data rate (gbps) hot plug control termination resistor switch control switching method ddc buffer type equalizer high speed mode package rohs bu16025muv 3 to 3.6 10 1 input 1 output 2.70 yes sync oe - active selectable yes vqfn48av7070 yes no.10063eet01
technical note 2/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. item limits unit BU16006KV bu16018kv bu16024kv bu16027kv power supply voltage(vcc) -0.3 symbol parameter min. typ. max. unit v cc supply voltage 3 3.3 3.6 v t a free-air temperature 0 - 70 tmds differential pins v ic input common mode vo ltage, see figure 2. v cc ?0.6 - v cc +0.01 v v id(pp) receiver peak-to-peak differentia l input voltage, see figure 2. 150 - 1560 mvp-p r vsadj resistor for tmds compliant voltage swing range 4.60 4.64 4.68 k av cc tmds output termination voltage, see figure 1. 3 3.3 3.6 v r t termination resistance, see figure 1. 45 50 55 signaling rate - - 2.25 gbps control pins v ih lvttl high-level input voltage 2 - v cc v v il lvttl low-level input voltage gnd - 0.8 v hpd_sink v ih high-level input voltage 2.4 - 5.5 v v il low-level input voltage gnd - 0.8 v rx (sda[n],scl[n]) v ih high-level input voltage 2.4 - 5.5 v v il low-level input voltage gnd - 0.8 v tx (scl_sink, sda_sink) v ih high-level input voltage 1.5 - 5.5 v v il low-level input voltage gnd - 0.35 v technical note 3/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. symbol parameter test condition limit unit min. typ. (1) max. icc supply current BU16006KV, bu16018kv bu16027kv v id = 400mv, r vsadj = 4.64k ? ? ? ? 600 mw bu16024kv - 480 700 mw tmds differential pins (a/b;y/z) v oh single-ended high-level output voltage BU16006KV, bu16027kv avcc = vcc, r t = 50 ? ? ? ? ? ? ? ? technical note 4/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. symbol parameter test conditions limits unit min. typ. (1) max. ddc input and output tx i lkt1 input leak current vi=5.5v -10 - 10 ? ? ? rl=4.7k ? selref = nc - 100 - mv selref= gnd - 250 - selref = vcc - 400 - rx i lkr1 input leak current hpd 1, hpd 2, hpd 3 v oh(ttl) high level output voltage i oh = -8ma 2.4 - vcc v v ol(ttl) low level output voltage i ol = 8ma 0 - 0.4 v control pins i ih high level input current v ih = vcc -10 - 10 control pins (i 2 cen, selref,) i ih high level input current v ih = vcc -45 - 45 hpd_sink i ih high level input current v ih = 5.5v 10 50 100 technical note 5/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. symbol parameter test condition limits unit min. typ. (1) max. tmds differential pins (y/z) t plh propagation delay time low to high level output BU16006KV, bu16018kv, bu16027kv av cc = 3.3v, r t = 50? ? ? ? ? technical note 6/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. figure 1 tmds output driver tmds receiver tmds driver vid vcc rint rint a b rt rt avcc cl y z 0.5pf vy vz va vb vswing = vy - vz vid = va - vb va vcc-0.4 v 0.4 v 0 v -0.4 v vid(pp) vic tf 80% 20% vod(u) 0% 0v differential 100% tplh tr vod(o) vb vswing tplh vcc v figure 2 test circuit and definitions zo = r t zo = r t tmds drive r tmds receive r avcc r t r t technical note 7/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. figure 3 definition of intra-pair differential skew s1 clocking s2 a b a b a b 75mv -75mv hi-z 75mv -75mv t sx t en y z output 2 vdd 0v vdd t sx t dis port 1 port 2 port 3 vcc-0.4 v vcc v vcc-0.4 v vcc v vcc-0.4 v vcc v figure 4 tmds outputs control timing definitions t pdhl(hpd) t pdlh(hpd) 2 vdd 2 vdd 2.4v t sx(hpd) 0v 2 vcc t pdhlrt(ddc) t pdlhrt(ddc) hpd_sink hpd1 hpd2 hpd3 s1 s2 sda_sink sda1 sda2 sda3 vdd 1.5v t sx (ddc) 1.5v vdd 0v t pdhltr(ddc) t pdlhtr(ddc) t ftx(ddc) t rtx(ddc) t frx(ddc) t rrx(ddc) 80% 20% 80% 20% rx to tx tx to rx v il figure 5 ddc and hpd timing definitions tsk(d) 50% vy vz voh vol technical note 8/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. figure 6 supply voltage(vcc) vs. supply current(icc) of BU16006KV/bu16027kv [s1=h,s2=l] technical note 9/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. terminal i/o description name no. a11, a12, a13, a14 39, 42, 45, 48 i source port 1 tmds positive inputs a21, a22, a23, a24 54, 57, 60, 63 i source port 2 tmds positive inputs b11, b12, b13, b14 38, 41, 44, 47 i source port 1 tmds negative inputs b21, b22, b23, b24 53, 56, 59, 62 i source port 2 tmds negative inputs gnd 3, 9, 15, 22, 28, 43, 58 - ground hpd1 35 o source port 1 hot plug detector output hpd2 50 o source port 2 hot plug detector output hpd_sink 31 i sink port hot plug detector input reserve1 34 i/o set to high/low/open reserve2 49 i/o non connect pin scl1 37 i/o source port 1 ddc i 2 c clock line scl2 52 i/o source port 2 ddc i 2 c clock line scl_sink 29 i/o sink port ddc i 2 c clock line sda1 36 i/o source port 1 ddc i 2 c data line sda2 51 i/o source port 2 ddc i 2 c data line sda_sink 30 i/o sink port ddc i 2 c data line s1, s2 32, 33 i source selector vcc 6, 12, 19, 25, 40, 46, 55, 61 - power supply vsadj 16 i tmds compliant voltage swing control (4.64k ? b23 a24 b24 a23 a22 b22 a21 b21 b13 a14 b14 a13 a12 b12 a11 b11 control logic tmds drive tmds drive tmds drive tmds drive z4 y4 y3 z3 y2 z2 y1 z1 s1 s2 scl_sink sda_sink hpd1 hpd2 scl1 sda1 scl2 sda2 tmd s r x tmd s r x tmd s r x tmd s r x r int r int v cc r int r int v cc r int r int v cc r int r int v cc vsadj hpd_sink tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc BU16006KV technical note 10/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. terminal i/o description name no. a11, a12, a13, a14 6, 9, 12, 15 i port 1 tmds positive inputs a21, a22, a23, a24 68, 71, 74, 77 i port 2 tmds positive inputs a31, a32, a33, a34 49, 52, 55, 58 i port 3 tmds positive inputs b11, b12, b13, b14 5, 8, 11, 14 i port 1 tmds negative inputs b21, b22, b23, b24 67, 70, 73, 76 i port 2 tmds negative inputs b31, b32, b33, b34 48, 51, 54, 57 i port 3 tmds negative inputs gnd 4, 10, 16, 24, 30, 36, 37, 47, 53, 59, 65, 66, 72, 78 - ______ _ cc 7, 13, 17, 27, 33, 43, 50, 56, 61, 69, 75, 79 - ? 3-to-1 mux control logic tmds drive tmds drive tmds drive tmds drive z4 pre vsadj y4 y3 z3 y2 z2 y1 z1 oe s1 s2 s3 hpd_sink scl_sink sda_sink hpd1 hpd2 hpd3 scl1 sda1 scl2 sda2 scl3 sda3 b23 a24 b24 a23 a22 b22 a21 b21 b33 a34 b34 a33 a32 b32 a31 b31 b13 a14 b14 a13 a12 b12 a11 b11 tmd s r x tmd s r x tmd s r x tmd s r x r int r int v cc r int r int v cc r int r int v cc r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc gnd v cc 61 hpd2 62 sda2 63 scl2 64 gnd 65 b21 66 a21 67 v cc 68 b22 69 a22 70 gnd 71 b23 72 a23 73 v cc 74 b24 75 a24 76 gnd 77 v cc 78 hpd1 79 80 test2 41 oe 42 v cc 43 hpd3 44 sda3 45 scl3 46 gnd 47 b31 48 a31 49 v cc 50 b32 51 a32 52 gnd 53 b33 54 a33 55 v cc 56 b34 57 a34 58 gnd 59 test3 60 test0 1 sda1 2 scl1 3 gnd 4 b11 5 a11 6 v cc 7 b12 8 a12 9 gnd 10 b13 11 a13 12 v cc 13 b14 14 a14 15 16 v cc 17 vsadj 18 pre 19 test1 20 40 hpd_sink 39 sda_sink 38 scl_sink 37 gnd 36 gnd 35 z1 34 y1 33 v cc 32 z2 31 y2 30 29 gnd 28 z3 27 y3 26 v cc 25 z4 24 y4 23 s3 22 s2 21 s1 gnd gnd technical note 11/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. terminal i/o description name no. b1, b2, b3, b4 39, 42, 45, 2 i tmds negative inputs a1, a2, a3, a4 40, 43, 46, 3 i tmds positive inputs z1, z2, z3, z4 22, 19, 16, 11 o tmds negative outputs y1, y2, y3, y4 21, 18, 15, 10 o tmds positive outputs hpd 37 o source side hot plug detector output hpd_sink 24 i sink side hot plug detector input scl 34 i/o source port ddc i 2 c clock line sda 33 i/o source port ddc i 2 c data line scl_sink 27 i/o sink port ddc i 2 c clock line sda_sink 28 i/o sink port ddc i 2 c data line vsadj 35 i tmds voltage swing control(4.64k ? scl scl_sink sda sda_sink i2cen selref vsadj pre oe v cc a4 b4 tmds rx tmds driver r int v cc a3 b3 tmds rx tmds driver r int v cc a2 b2 tmds rx tmds driver r int v cc a1 tmds rx tmds driver r int b1 y4 z4 y3 z3 y2 z2 y1 z1 hpd hpd_sink(* ) (*) when hpd_sink = ?l?. termination resistor is turned off. :?:?:?:?:?::- :w::?:?:?:?::?:w:-::?::? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :?:? :? :? :? :? :? :? :? :? :? :?:? :?:? :?:? :-:o:o ::? ::?:? :|:?:? :?::? :?:?:?:?: :?::? :?:?:? :?:?:? :?:?:a:?:? :?:?:a:?:? ::? ::? :-:o:o ::? :?::? ::? :-:o:o ::? ::? ::? ::? :?::?:?:a:?:: :?::? :?:?:a:?:? :?::? :a:?::?:a:?:: :a:?:?:?:a:?:: :-:o:o :a:?::?:?:? :?::? :-:o:o :a:?:? :a:?: :-:a:?:?:? :?:?:a:?:? ::? :-:o:o :?:?:? :?::? :?:?:? :-:o:o :?:?:? :?:?:? :?:?:? :?:?:? :?::? :?::? technical note 12/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. terminal i/o description name no. a11, a12, a13, a14 39, 42, 45, 48 i source port 1 tmds positive inputs a21, a22, a23, a24 54, 57, 60, 63 i source port 2 tmds positive inputs a31, a32, a33, a34 5, 8, 11, 14 i source port 3 tmds positive inputs b11, b12, b13, b14 38, 41, 44, 47 i source port 1 tmds negative inputs b21, b22, b23, b24 53, 56, 59, 62 i source port 2 tmds negative inputs b31, b32, b33, b34 4, 7, 10, 13 i source port 3 tmds negative inputs gnd 3, 9, 15, 22, 28, 43, 58 - ground hpd1 35 o source port 1 hot plug detector output (status pin) hpd2 50 o source port 2 hot plug detector output (status pin) hpd3 64 o source port 3 hot plug detector output (status pin) hpd_sink 31 i sink port hot plug detector input (status pin) reserve1 34 i/o in high, low, and open, any setting is ok. reserve2 49 i/o non connect pin scl1 37 i/o source port 1 ddc i 2 c clock line scl2 52 i/o source port 2 ddc i 2 c clock line scl3 2 i/o source port 3 ddc i 2 c clock line scl_sink 29 i/o sink port ddc i 2 c clock line sda1 36 i/o source port 1 ddc i 2 c data line sda2 51 i/o source port 2 ddc i 2 c data line sda3 1 i/o source port 3 ddc i 2 c data line sda_sink 30 i/o sink port ddc i 2 c data line s1, s2 32, 33 i source selector vcc 6, 12, 19, 25, 40, 46, 55, 61 - power supply vsadj 16 i tmds voltage swing control (via 4.64k ? b23 a24 b24 a23 a22 b22 a21 b21 b33 a34 b34 a33 a32 b32 a31 b31 b13 a14 b14 a13 a12 b12 a11 b11 tmds drive tmds drive tmds drive tmds drive z4 y4 y3 z3 y2 z2 y1 z1 s1 s2 scl_sink sda_sink hpd1 hpd2 hpd3 scl1 sda1 scl2 sda2 scl3 sda3 tmd s r x tmd s r x tmd s r x tmd s r x r int r int v cc r int r int v cc r int r int v cc r int r int v cc vsadj hpd_sink tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc tmd s r x r int r int v cc control logic bu16028kv technical note 13/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. control pins i/o selected output status hpd_sink s1 s2 y/z scl_sink sda_sink hpd1 hpd2 hpd3 h h h a1/b1 termination resistors of a2/b2 and a3/b3 are disconnected scl1 sda1 h l l h l h a2 / b2 termination resistors of a1/b1 and a3/b3 are disconnected control pins i/o selected output status hpd_sink s1 s2 y/z scl_sink sda_sink hpd1 hpd2 hpd3 h/l h h a1/b1 termination resistors of a2/b2 and a3/b3 are disconnected scl1 sda1 hpd control pins i/o selected output status hpd_sink s1 s2 s3 y/z scl_sink/sda_sink hpd1 hpd2 hpd3 h h x x a1/b1 termination resistors of a2/b2 and a3/b3 are disconnected technical note 14/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. 50 anm bnm 50 v dd tmds input stage ym zm 10ma tmds output stage r-side i 2 c input/output stage scl sda v dd v dd v dd v dd v dd scl_sink sda_sink hpd_sink hpdn v dd hpd output stage t-side i 2 c input/output stage technical note 15/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. ioff vcc=0v vcc=0v ym zm 50 50 voff voff avcc=3.3v avcc=3.3v ioff figure 7 tmds equivalent output schematic figure 8 leak current control in bu16018kv and bu16024kv technical note 16/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. 2). hpd_sink pull down resistance. hpd_sink have a 5v tolerant structure shown in figure 9.it needs some drive current to pull down hpd_sink "h" to "l". so to pull down hpd_sink, please use 10k ? ? figure 9 hpd_sink i/o schematic 3). about don?t use terminal. 3-1. unused tmds input channel recommend open. tmds receiver tmds driver vcc r int r int bu160**kv y z r t r t avcc a b figure 10 tmds input recommendation 3-2. unused ddc buffers of r side recommend to pull up to vcc. t r vcc scl sda 4.7k scl_sink sda_sink figure 11 unused ddc buffers of r side technical note 17/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. 3-3. unused ddc buffers of r side recommend pull up to vcc. figure 12 unused ddc of t side 3-4. unused hpdn recommend open. figure 13 open unused hpdn 4). about serial connection notice. when bu160xxkv output connect to other hdmi sw input like foll owing application the specification of jitter tolerance is downed. especially when system needs 1080p (12bit) data rate and cable or pcb trace lengths between bu160xxkv input and output is small, deteriorat ions of jitter tolerance is outstanding. this problem also depends on receiver ic characteristic. when system is required 1080p (12bit ), rohm doesn?t recommend serial connect application. figure 14 serial connection notice t r vcc rscl rsd a tscl tsd a 4.7k technical note 18/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. 5). ac coupling notice bu160xxkv can also communicate using ac coupling capacitor with tmds line. but even connecting ac coupling capacitor, ac current may flow if input common mode voltage between two devices is different. for this current, the lower common mode voltage devices like pcie or dp may be damaged by ac current. figure 15 ac coupling connection notice 6). tmds output offset voltage notice. offset voltage may appear to tmds output when there is no signal to tmds input differential line. oe should set to ?h? to avoid it. 7). limitation of master and slave direction as shown figure 16. figure 16 limitation of master and slave direction technical note 19/19 BU16006KV, bu16018kv, bu16024kv, bu16027kv www.rohm.com 2010.05 - rev.e ? 2010 rohm co., ltd. all rights reserved. ordering part number b u 1 6 0 0 6 k v - e 2 part no. part no. 16006 16018 16024 16027 package kv: vqfp80 (bu16018), vqfp64 (bu16027 / bu16006), vqfp48c (bu16024) packaging and forming specification e2: embossed tape and reel (unit : mm) vqfp80 0.08 m 0.08 s 1.6max 1.25 1pin mark 1 1.4 0.05 21 80 0.5 0.15 1.0 0.2 40 61 1.25 0.1 0.05 0.5 0.1 0.145 41 20 +0.05 60 - 0.03 0.2 +0.05 - 0.04 12.0 0.1 14.0 0.2 12.0 0.1 14.0 0.2 +6 4 ?4 s direction of feed reel ? order quantity needs to be multiple of the minimum quantity. r1010 a www.rohm.com ? 2010 rohm co., ltd. all rights reserved. notice rohm customer support system http://www.rohm.com/contact/ thank you for your accessing to rohm product informations. more detail product informations and catalogs are available, please contact us. notes no copying or reproduction of this document, in part or in whole, is permitted without the consent of rohm co.,ltd. the content specied herein is subject to change for improvement without notice. the content specied herein is for the purpose of introducing rohm's products (hereinafter "products"). if you wish to use any such product, please be sure to refer to the specications, which can be obtained from rohm upon request. examples of application circuits, circuit constants and any other information contained herein illustrate the standard usage and operations of the products. the peripheral conditions must be taken into account when designing circuits for mass production. great care was taken in ensuring the accuracy of the information specied in this document. however, should you incur any damage arising from any inaccuracy or misprint of such information, rohm shall bear no responsibility for such damage. the technical information specied herein is intended only to show the typical functions of and examples of application circuits for the products. rohm does not grant you, explicitly or implicitly, any license to use or exercise intellectual property or other rights held by rohm and other parties. rohm shall bear no responsibility whatsoever for any dispute arising from the use of such technical information. the products specied in this document are intended to be used with general-use electronic equipment or devices (such as audio visual equipment, ofce-automation equipment, commu- nication devices, electronic appliances and amusement devices). the products specied in this document are not designed to be radiation tolerant. while rohm always makes efforts to enhance the quality and reliability of its products, a product may fail or malfunction for a variety of reasons. please be sure to implement in your equipment using the products safety measures to guard against the possibility of physical injury, re or any other damage caused in the event of the failure of any product, such as derating, redunda ncy, re control and fail-safe designs. rohm shall bear no responsibility whatsoever for your use of any product outside of the prescribed scope or not in accordance with the instruction manual. the products are not designed or manufactured to be used with any equipment, device or system which requires an extremely high level of reliability the failure or malfunction of which may result in a direct threat to human life or create a risk of human injury (such as a medical instrument, transportation equipment, aerospac e machinery, nuclear-reactor controller, fuel- controller or other safety device). rohm shall bear no responsibility in any way for use of any of the products for the above special purposes. if a product is intended to be used for any such special purpose, please contact a rohm sales representative before purchasing. if you intend to export or ship overseas any product or technology specied herein that may be controlled under the foreign exchange and the foreign trade law, you will be required to obtain a license or permit under the law. |
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