IC-Haus iC-NE特殊功能（Special Functions）.pdfIC-Haus iC

文件名称: IC-Haus iC-NE特殊功能（Special Functions）.pdf

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详细说明：IC-Haus iC-NE特殊功能（Special Functions）pdf,IC-Haus iC-NE特殊功能（Special Functions）IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev d2, PagePage 3/10 ABSOLUTE MAXIMUM RATINGS Values beyond which damage may occur; device operation is not guaranteed. Item Symbol Parameter Conditions Fi Unit GOO1 VDD Voltage at VDD 0.5 G002| Voltage at DIN, CLK, DOUT, SN,SP 5VDD+.5V E001 VdO ESD Susceptibility at DIN, CLK, MIL-STD-883, HBM DOUT PD. SN SP 100 pF discharged through 1.5 kQ2 TG1 T Junction Temperature 150 TG2 Ts Storag emperature 150 THERMAL DATA Operating Conditions VDD=5V+10% Item Symbol Parameter Conditions Fig Unit Min. Typ T1Ta Operating Ambient Temperature 70 Range(extended temperature range of-25.85 C on request) All voltages are referenced to ground unless otherwise noted All currents into the device pins are positive; all currents out of the device pins are negative IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev d2, Page Page 4/10 ELECTRICAL CHARACTERISTICS Operating conditions vDD=5∨±10%,vSN,昴P)=VDD-2V.vDD,可=-20.85C, unless otherwise noted Item Symbol Parameter Conditions Tj Fig Unit °C Mir Max otal Device 001 VDD Permissible Supply Voltage 4.5 5.5 Range 002 VDD Required Supply Voltage for logic decreasing voltage VDD 1.7 003 (VDD) Supply Current in VDD DIN =locLK= hi or lo (Standby) BP-amplifier and output stag disabled, logic levels lo=0.0.45V hi= VDD-0 45VVDD 004 1(VDD)supply Current in VDD En=hi: BP-amplifier activated 0.5mA INH hi: output stage disabled, 27 0.3 I(PD=-15 0 HA 005(VDD) Supply Current in VDD En= hL. INH= o: B olIvier 3.0 land output stage active 006 VDDon Turn-on Threshold VDD 4.2 (Power-on release 007 VDDoff Undervoltage Threshold at VDD decreasing voltage VDD 2. (Power-down reset) 008 VDDhysHysteresis DDhys=VDDon-VDDo1 200 500 009 VcOhi Clamp Voltage hi at DIN, CLK, VcOhi= VO)-VDD 04 DOUT PD, SN. SP 1=10mA 010 CoLo Clamp Voltage lo at DIN, CLK, 1()=-10 mA, VDD=OV 125 -0.4 DOUT PD. SN SP other pins open Bandpass Amplifier and Output Stage PD, SN, SP 101 C(PD) Permissible capacitance at PD 100 pl 102 V(PD Voltage at PD 103(PD)Permissible DC-photocurrent in 0 A PD(ambient light supression) 104 (PD)mg Monotone Gain Range of l(PD)pk pn(l increases or remains constant when I(PD)pk increases 105 Permissible photocurrent Pulse Duration 4 Permissible Photocurrent Pause 2nd Gpk 290% 1st Gpk(resp.of 2.0 us Duration single pulse 107 trec Flash Recovery Time (PDpk=-1.8 mA 108 trec Power-Flash Recovery time I(PDpk =-5 mA, magnitude of photocurrent integral equals 15 mAs 109Gpk Pulse current Gain Gpk 360 490 lpn()-I0*ISUM]/(PD)pk ( PD)dc=-15.0μA, (PD)pk=-1.-01 HA, tr=tf=0.5 Hs, twpk=1 us 110f Lower Cut-off Frequency (PD)dc=-15.-2.5A, KHz (PDac=5μ App sinusoidal 111h Upper Cut-off Frequency (PD)dc=-15.-2.5A 750kHz (-3dB) I(PD)ac=5 HApp sinusoidal eform 12|f△ Bandwidth (-3 dB fA= fh-fl 270 430 670kHz 113V( Permissible Output Voltage VOout=VDD-VO Range at SN, SP with reference DD IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev d2, Page Page 5/10 ELECTRICAL CHARACTERISTICS Operating conditions vDD=5∨±10%,vSN,昴P)=VDD-2V.vDD,可=-20.85C, unless otherwise noted Item Symbol Parameter Conditior Tj Fig Unit °C Min. Typ.Max 114 ISUM Output currents I(SN)+I(SP) 4.9 97 27 7.5 115|0 Relative Current offset I0=[(SN)-I(SP)/ISUM; -10 10 (PD)=0 116 Leakage Current I(SN)+ I(SP) output stage disabled 4.0 17Idlko Differential Leakage Current IdIk(=I(SN)-I(SP) PD)pk =-600 HA, twhi =3 Hs, output stage disabled 118 'pn( Differential Output Current Ipn(=I(SN)-I(SP): 7.0 5.0 I(PD)pk=-10 HA 119 pn( Differential Output Current lpn(=I(sN)-l(SP) 3 -9.7-7.3-40 (PD)pk=-100 HA 120 INoise Differential Output Current I(PD)dc =-15 HA, Rgen =500 kQ2, 275 A Noise(RMs) no additional filter 121 INoise Differential Output Current (PDdc=-15A,Rgen=500k0,275 3.5 A Noise(RMs) with bp-filter 50 kHz. 1.2 MHz 122 tpOIDCon Output Stage Turn-on Delay (PDdc=-15μA.0, 4 3.0 CLK lohi to 90%I(SN), I(sI (PDac=0 123 tp()IDCoff Output Stage Turn-off Delay (PDdc=-15μA.0 3.0 s CLK lo-hi to 10%I(SN), I(SP)(PD)ac=0 Control Inputs dIN, CLK 201Vt(hi Threshold Voltage hi 56 %VDD 202|Vt()l Threshold voltage lo %ODD 203Vhys( Schmitt-Trigger Input Hysteresis 400 204pd(0 Pull-Down Current VO=1V.VDD A 27 6 Output Buffer DOUT 301 VsOhi Saturation Vollage hi VsOhi=VDD-V(DOUT) 04 1()=-4mA 302 SoLo Saturation Voltage lo 1()=4mA 04 303 Isc(hi Short-Circuit Current hi V(=0V -100 27 40 304 Isc()lo Short-Circuit Current lo √0=VDD 25 100 27 mA 305tr( Rise Time CLO= 50 pF 27 306 Fall Time CL(=50 pF 0 27 20 ns Switching characteristics 401 tplh (CLK Propagation Delay CL(DOUT)=50 pF DOUT) CLK hi-lo until DOUT lo-hi 25 402 tphI(CLK Propagation Delay CL(DOUT)=50 pF dout)clk hi lo until dout hi-lo 27 25 IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev d2, Page Page 6/10 OPERATING REQUIREMENTS: Logic Operating Conditions: VDD=5V#10%, Ta=0.70C, CL(=50 pF, input levels lo =0.0.45V, hi=VDD-045V.VDD, see Fig 1 for reference levels and waveforms tem Symb。l| Paramete Conditions Fi Mir M Activation time standby to amplifier operation 10 DIN lo-hi to CLK lo-h 12 tinh Output Activation T ime sufficient decay of transient differential 4 1st CLK lo-hi until output ready to output current report I(SN)-(SP)-IO*ISUMS 20 HA 3 tset Setup time 50 ns DiN Stable before clK lo+h 14 thold Hold ti ns DIN Stable after CLK lo +hi Permissible Frequency at CLK MHz CLK Input/oulput tset(DIN) VDD-O45V Lohi thold(DIN)\ Fig 1: Reference levels A/tplh(CLK-DOUT rtphl (CLK-DOUT DOUT ig 2: Timing characteristics K(PD) I'FDDK tr - to(ICOn tE(IDCo'T Offset( IO"ISU v(SP) Fig 3: Differential output current pulse at sp and sn versus input current pulse at PD Fig 4: Timing characteristics(analog section). Outputs SP and SN with resistors to Vdd IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev D2, Page Page 7/10 I(PD)dc 11D|N RGen A adjust VS for I(PD)dc=- 15HA 500kQ VS 5V 2VDD GND approx. 6V RA NH mA)ISUM 4V+RL ISUM/2 100kQ adjust until ISUM stops rising CLK DOUT RL RL CAe 10μF 1kQ凵1kQ Differential 4SP Amplifier R1 IC-NE 1109 Gain=10 330pF∏R2 RMS. BWE 10MHZ 工12nF 10kQ Voltmeter Fig 5: Noise measurement circuit APPLICATIONS INFORMATION Signal Processing :!++:非:+计4!}1!:1:+:!}::+!::: Cn15.00V H20 us A Ch4了840 H 2.00us A Ch4 5 840mv ch42.00V Ch4 2.00v Fig 6: Regular input signals Fig 7: EXcessive input signals Figures 6 and 7 show output signal I(SP)-I(SN)in"normal "drive and in extreme overdrive(with the photodiode and input amplifier in saturation). It is clear from these diagrams that IC-NE, even when in overdrive, is not "blind to a follow-on pulse. For evaluation purposes the response to the rising edge of the light pulse(i.e the rising edge of the output signal) is to be used as it is this edge alone, even in the most extreme overdrive, which yields definite results. Evaluating the falling edge of the output signal or the level of the negative output signal half- wave( the recovery process at the end of a light pulse) is generally not advised IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev D2, Page Page 8/10 Light curtain The circuit in Figure 8 shows iC-ne chained up to form a light curtain, where consecutive pin diodes receive and evaluate clock-driven light pulses IC1 IC2 DIN B PD2 2 GND GND DO2 DOU DOU CK IC-NE IC-NE NE GNDo Fig 8: Schematic of a chain configuration When discussing the function of IC-NE, it is assumed that all flip-flops in IC1ICn have been reset, for example after the operating voltage has been switched on the signal dIN1 hi activates the IC 1 bandpass amplifier and the bias of the differential output stage Outputs sP and sN remain tristate until the rising ClK edge shifts in the input hi signal With no AC photocurrent fractions in the receiver photodiode approximately equal currents are drawn in SP and SN. Within a time tinh 2 5 us, the transient differential currents in the output stage, caused by switching the chip on, have decayed, and iC-ne is ready to receive Current is drawn from PD (IC1 by a light pulse on the photodiode pD1, and the currents at outputs SP and sN react as shown in Figure 9: I(SP)rises and returns to the initial value with a time constant determined by the lower bandpass amplifier cutoff frequency, as long as the photodiode is constantly illuminated. When the light pulse decays, the current in SP first sinks and then ramps up to the standby value. The current in Sn has a mirror-imaged time dependance, as the sum I(SP)+I(SN)is constant With DIN1=0, the next rising CLK edge resets FF1 and turns off the currents in the differential output stage Simultaneously, FF1 sends the stored information to FF2 FF3 also accepts this information with the trailing CLK edge and activates the bandpass amplifier and the bias in the next device, IC2, via the output driver. The pulse diagram is also valid for the subsequent components in the chain, i. e the iCs arranged as a light curtain form a clock-driven shift register which passes on the input information IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev D2, Page Page 9/10 DN1 CLK D01 DO2 RECEIVED IGHT PULSE Fig. 9: Signals for the chain configuration of Fig. 6 Light curtain PCB layout The Pcb layout for light curtain receivers is not critical. the photodiode anode should be directly connected to iC-NE'S GND pin so that voltage drop caused by the chip's operating current is not coupled into the photocurrent sigl As the power consumption is relatively small, only low-level back-up capacitors are required (typically 1 uF electrolytic capacitor in parallel to 47..100 nF ceramic capacitor). The ceramic capacitors should be placed at a distance of 7.5 cm apart, electrolytic capacitors at up to twice this distance. The number of receivers backed up as a group in this manner is irrelevant as only one device is activated and draws current at a time This specification is for a newly developed product. iC-Haus therefore reserves the right to change or update, without notice, any information contained herein design and specification; and to discontinue or limit production or distribution of any product versions. Please contact iC-Haus to ascertain the current data Copying-even as an excerpt- is only permitted with ic-Haus approval in writing and precise reference to source iC-Haus does not warrant the accuracy, completeness or timeliness of the specification on this site and does not assume liability for any errors or omissions in the materials. The data specified is intended solely for the purpose of product description. No representations or warranties, either express or implied, of merchantability, fitness for a particular purpose or of any other nature are made hereunder with respect to information/specification or the products to which iformation refers and no guarantee with respect to compliance to the intended use is given. In particular, this also applies to the stated possible appli r areas of applications of the product iC-Haus conveys no patent, copyright, mask work right or other trade mark right to this product. iC-Haus assumes no liabi ity for any patent and/or other trade mark rights of a third party resulting from processing or handling of the product and/or any other use of the product IC-NE LIGHT CHAIN PULSE RECEIVER cHAus Rev D2, Page Page 10/10 ORDERING INFORMATION e Package Order designation IC-NE SO8 IC-NE SO8 MSOP8 IC-NE MSOP8 For information about prices, terms of delivery, options for other case types, etc, please contact iC-Haus gmbh Te+49-61359292-0 Am Kuemmerling 18 Fax+496135-9292-192 D-55294 Bodenheim http:/lwww.ichaus.com GERMANY

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