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Tektronix P6434, Инструкция по эксплуатации

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Designing an Interface Between a P6434 Probe and a Target System

28

P6434 Probe Instructions

The low-profile extender used with the P6434 probe increases the load. The
additional load is equivalent to a 100

Ω

resistor connected in series with

approximately three inches of 75

Ω

coaxial cable to the probe tip.

Although the extender can increase the loading significantly, using the extender
might be necessary in situations where there is as little as half an inch of
clearance.

The extender is useful in a target system where signal risetimes are greater than
one or two nanoseconds. Faster risetimes cause transmission line reflections on
signals.

Figure 20 shows the equivalent circuit for the P6434 probe with a low-profile
extender

1.6 nH

1.6 nH

0.7 pF

0.005

Ω

0.005

Ω

100

Ω

Length = 3 in

0.005

Ω

1.6 nH

0.7pF

0.005

Ω

1.1 pF

20 k

Ω

0.23 pF

Length = 58 in

LOSSY

+2.2 V

LOSSY

1.6 nH

75

Ω

Mictor connector equivalent circuit

Mictor connector equivalent circuit

Figure 20: Equivalent circuit for the P6434 probe with a low-profile extender

Содержание P6434

Страница 1: ...furbished and purchasing new Financing options such as Financial Rental and Leasing are also available on application TMG will assist if you are unsure whether this model will suit your requirements C...

Страница 2: ...Instructions P6434 Mass Termination Probe 070 9793 04 P070979304 070979304 www tektronix com...

Страница 3: ...and foreign patents issued and pending Information in this publication supercedes that in all previously published material Specifications and price change privileges reserved Tektronix Inc P O Box 50...

Страница 4: ...tions This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this...

Страница 5: ......

Страница 6: ...etween a P6434 Probe and a Target System Mictor Connectors and Latch Housings 15 Dimensions and Placement of Compatible Mictor Connectors 17 Direct Connection 17 Low Profile Extender Connection 18 Mec...

Страница 7: ...13 Releasing the probe tip from the latch housing 14 Figure 14 Latch housing dimensions 16 Figure 15 Dimensions and placement of a surface mounted Mictor connector with latch housing 17 Figure 16 Side...

Страница 8: ...e cords to the latch releases 39 Figure 31 Reconnecting the latch release cords to the latch release grip 39 Figure 32 Reassembling the module end 40 Figure 33 Jumper and connector locations on the te...

Страница 9: ...or connector component side 21 Table 5 Pin 1 side probe channel assignments 22 Table 6 Pin 38 side probe channel assignments 22 Table 7 Nonstandard pin assignment for Mictor connector component side 2...

Страница 10: ...further ratings information before making connections to the product Do not apply a potential to any terminal including the common terminal that exceeds the maximum rating of that terminal Use Proper...

Страница 11: ...o this product or other property Terms on the Product These terms may appear on the product DANGER indicates an injury hazard immediately accessible as you read the marking WARNING indicates an injury...

Страница 12: ...n in these instructions assumes your target system is based on a microprocessor If your target system is not based on a microprocessor you should substitute the type of device on which your system is...

Страница 13: ...es support 1 800 833 9200 select option 1 Service support 1 800 833 9200 select option 2 Technical support Email techsupport tektronix com 1 800 833 9200 select option 3 6 00 a m 5 00 p m Pacific time...

Страница 14: ...sing TLA6xx or TLA7Lx Mx Nx Px Qx logic analyzer modules you can take advantage of the new compression footprint and eliminate the need for Mictor connectors in your target system with a Compression o...

Страница 15: ...ne clock and one qualifier or two qualifier signals The probe has connectors on each end One end is called the probe tip and connects to your target system The other ends are called the module ends an...

Страница 16: ...ue QUAL 0 D3 7 0 D2 7 0 Color on Pin 38 side Yellow CK 2 D1 7 0 D0 7 0 Control Color on Pin 1 side White CK 3 C3 7 0 C2 7 0 Color on Pin 38 side Gray QUAL 1 C1 7 0 C0 7 0 Extended 136 channel module o...

Страница 17: ...are two different sizes of labels for each channel group H Probe tip labels smaller H Module end labels larger H Blank labels custom channel combinations not recommended 2 Locate the probe tip end of...

Страница 18: ...cators for pin 1 side 6 Apply the associated pin 38 side label to the probe tip see Figure 5 If necessary see Tables 1 or 2 on page 3 for label information Pin 1 side Pin 38 side Associated probe tip...

Страница 19: ...ons the cable to the model end connector Match the color of the module end label to the probe tip label Module end label Probe tip label Other side Match label colors Match label colors Figure 6 Apply...

Страница 20: ...probe adapter follow these steps 1 Line up the pin 1 indicator on the probe tip with pin 1 on the connector in your target system The Mictor connector is keyed to prevent incorrect connections CAUTIO...

Страница 21: ...eleases on the probe to set the latch Optional latch housing Pin 1 Push down to latch after probe is connected Push down to latch after probe is connected Optional latch housing Pin 1 Pin 1 Figure 7 C...

Страница 22: ...tender with pin 1 on the connector in your target system The Mictor connector is keyed to prevent incorrect connections 2 Position the low profile end perpendicular to the connector and gently connect...

Страница 23: ...the adapter as show in Figure 9 The Mictor connector is keyed to prevent incorrect connections 3 Line up the pin 1 indicator on the adapter with the pin 1 indicator on the P6434 probe Connect the P64...

Страница 24: ...nected push down the latch releases on the probe to set the latch Pin 1 When designing board always orient Pin 1 toward edge of board to direct extender off the board Pin 1 Figure 10 Connecting the Re...

Страница 25: ...dapter land footprint See Figure 11 for further dimensional information 15 82 mm 623 in 32 131 mm 1 265 in 4 572 mm 180 in 13 716 mm 540 in 6 35 mm 1 27 mm 250 in 050 in PCB Thickness Circuit board El...

Страница 26: ...34 Probe Instructions 13 P6434 Mictor adapter 15 82 mm 623 in 34 93 mm 1 375 in 32 131 mm 1 265 in 13 716 mm 540 in 3 68 mm 145 in Figure 12 Clearance for probe connection using Compression on PCB to...

Страница 27: ...he latch housing CAUTION To avoid damage to the probe and mating connector hold on to the latch release grip and gently pull the probe straight out of the connector Do not tilt the probe in any direct...

Страница 28: ...h Housings The P6434 probe contains a 38 pin Mictor connector Table 3 lists Mictor connectors you can purchase from AMP that are compatible with the probe and compatible latch housings and connectors...

Страница 29: ...des positive retention of the P6434 probe Figure 14 shows the dimensions of the optional latch housings 31 50 mm 1 240 in 12 19 mm 480 in 4 95 mm 195 in 1 27 mm 050 in 28 20 mm 1 110 in 25 63 mm 1 009...

Страница 30: ...connect the P6434 probe directly to the target system or use the low profile extender with the probe Figure 15 shows the dimensions and minimum placement of surface mounted connectors on a target sys...

Страница 31: ...or the one inch of clear space under the extender is 0 2 inches as shown in Figure 16 NOTE Be sure to orient pin 1 on the Mictor connector in your target system to direct the extender off the board as...

Страница 32: ...ures the pin 1 indicator on the Mictor connector Even though the Mictor connector is keyed you still need to know the location of pin 1 when connecting the P6434 probe Pin 1 9 02 mm 355 in 28 20 mm 1...

Страница 33: ...in 5 08 mm 200 in 2 54 mm 100 in 2 92 mm 115 in 81 mm 032 in 0 85 mm 0335 in 18X 0 64 mm 025 in 19X 0 43 mm 017 in 2 28 mm 090 in 1 78 mm 070 in 2 80 mm 110 in 1 40 mm 055 in 56 mm 022 in 28 mm 011 in...

Страница 34: ...CAD packages use the AMP numbering scheme as the industry standard Table 4 shows the pin assignments for the surface mounted connector Pin assignments are the same for the straddle mounted connector A...

Страница 35: ...e Table 5 Pin 1 side probe channel assignments AMP Section and channel AMP pin number A probe C probe D probe E probe 5 CLK 0 CLK 3 Q0 Q3 7 A3 7 C3 7 D3 7 E3 7 9 A3 6 C3 6 D3 6 E3 6 11 A3 5 C3 5 D3 5...

Страница 36: ...n number E probe D probe C probe A probe 10 A1 6 C1 6 D1 6 E1 6 12 A1 5 C1 5 D1 5 E1 5 14 A1 4 C1 4 D1 4 E1 4 16 A1 3 C1 3 D1 3 E1 3 18 A1 2 C1 2 D1 2 E1 2 20 A1 1 C1 1 D1 1 E1 1 22 A1 0 C1 0 D1 0 E1...

Страница 37: ...n page 24 The pin assignment is counterclockwise with Pin 1 located at the top left and pin 2 located directly below it Pin 20 is located on the bottom right and pin 21 is located directly above it Ta...

Страница 38: ...0 12 A2 7 C2 7 D2 7 E2 7 13 A2 6 C2 6 D2 6 E2 6 14 A2 5 C2 5 D2 5 E2 5 15 A2 4 C2 4 D2 4 E2 4 16 A2 3 C2 3 D2 3 E2 3 17 A2 2 C2 2 D2 2 E2 2 18 A2 1 C2 1 D2 1 E2 1 19 A2 0 C2 0 D2 0 E2 0 These pin num...

Страница 39: ...6434 probe pin number E probe D probe C probe A probe 29 A1 1 C1 1 D1 1 E1 1 28 A1 0 C1 0 D1 0 E1 0 27 A0 7 C0 7 D0 7 E0 7 26 A0 6 C0 6 D0 6 E0 6 25 A0 5 C0 5 D0 5 E0 5 24 A0 4 C0 4 D0 4 E0 4 23 A0 3...

Страница 40: ...or most circuit simulation calculations Figure 19 shows the equivalent circuit of the P6434 probe Table 10 shows the values you can use to calculate characteristics of the lossy delay lines shown in t...

Страница 41: ...situations where there is as little as half an inch of clearance The extender is useful in a target system where signal risetimes are greater than one or two nanoseconds Faster risetimes cause transm...

Страница 42: ...cleaners and organic solvents should never be used CAUTION To prevent damage service the probe only in a static free environment The component devices contained on the P6434 probe are susceptible to s...

Страница 43: ...analyzer and a target system Table 11 shows the electrical requirements of the P6434 probe Table 11 Electrical specifications Characteristics Requirements Number of input channels 34 32 data and 2 clo...

Страница 44: ...elative humidity Altitude Operating 4 5 km 15 000 ft maximum Non operating 15 km 50 000 ft maximum Designed to meet Tektronix standard 062 2847 00 class 5 Not to exceed target system thermal considera...

Страница 45: ...der 31 75 mm 1 250 in 10 16 mm 400 in 5 08 mm 200 in Figure 21 Vertical dimensions of the P6434 probe and low profile extender Figure 22 shows the vertical dimensions of the P6434 probe and Reduced Bi...

Страница 46: ...se steps refer to Figure 23 as a guide Remove screws 4 Elastomer connectors 2 Circuit boards 2 Figure 23 Disassembling the P6434 probe tip 1 Remove the four screws from the outside of the probe case u...

Страница 47: ...cedures on pages 34 and 35 5 If you are only installing the connector parts replacement kit follow the Probe Tip procedure on page 36 To disassemble the latch release grip follow these steps 1 Use two...

Страница 48: ...odule end remove the four screws from the outside of the connector housing using a 0 050 inch hexagonal screwdriver and open the housing 2 Remove the cable with the connector attached 3 Remove the tri...

Страница 49: ...ap together Relieve pressure on detents to remove Board holder Board holder Relieve pressure on detents to remove Figure 26 Mictor connector circuit board and board holder 3 Lay the Mictor board assem...

Страница 50: ...ack cable side of the board holder as shown in Figure 28 6 Press the front connector side of the circuit board attached to the cable down until it snaps into place in the board holder Align the back e...

Страница 51: ...case half with the pin 1 side of the connector attach the case halves and reconnect the screws as shown in Figure 29 To reassemble the latch release grip follow these steps 1 Place the latch release c...

Страница 52: ...h releases 3 Place the other end of the latch release cords into the latch release grip and reconnect the latch release grip as shown in Figure 31 Figure 31 Reconnecting the latch release cords to the...

Страница 53: ...pieces in the connector housing as shown in Figure 32 Connector key Label Trim pieces Figure 32 Reassembling the module end 3 Orient the nonkeyed side of the connector to the case half with the label...

Страница 54: ...ation H Power supply for the test fixture refer to the Replaceable Parts List section under Optional Accessories on page 48 for part number information H Logic analyzer mainframe H Logic analyzer modu...

Страница 55: ...ls that are connected to the test fixture see Figure 34 Note the signal activity for the clock qualifier and data channels for the C3 C2 C1 and C0 probe sections Also note that there is no activity on...

Страница 56: ...for open channels therefore if channels are shorted together these channels will appear as connected signal activity on the test fixture 12 Repeat this procedure for additional probes 13 Close the Sh...

Страница 57: ...Reference 44 P6434 Probe Instructions...

Страница 58: ...s important to include the following information in your order H Part number H Instrument type or model number H Instrument serial number H Instrument modification number if applicable If you order a...

Страница 59: ...quantity of parts used 6 Name description An item name is separated from the description by a colon Because of space limitations an item name may sometimes appear as incomplete Use the U S Federal Ca...

Страница 60: ...80009 010 6434 01 118 9479 00 1 SERVICE KIT MECHANICAL PARTS INCLUDES 80009 118 9479 00 1 1 LABEL SHEET PROBE TIP AND MODULE ENDS P6434 2 4 SCREWS 1 72 x 0 375 BUTTON HEAD 3 4 NUTS 1 72 HEX 4 2 PROBE...

Страница 61: ...IONAL ACCESSORIES 17 010 0612 00 1 LOW PROFILE EXTENDER 4 25 INCH OVERALL 80009 010 0612 00 18 671 5481 00 1 P6434 REDUCED BIAS VOLTAGE ADAPTER 80009 671 5481 00 19 020 2455 00 1 17CH COMPRESSION ON P...

Страница 62: ...Probe Instructions 49 The cable kits are not interchangeable Be sure to order the correct kit number for items 7 or 8 1 2 3 4 5 6 7 Pin 1 side Pin 38 side 8 9 10 11 12 13 14 15 16 Pin 1 Figure 35 P64...

Страница 63: ...Replaceable Parts 50 P6434 Probe Instructions 17 18 19 20 Figure 36 Optional accessories...

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