am7996 Advanced Micro Devices, am7996 Datasheet
am7996
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am7996 Summary of contents
Page 1
... In an IEEE 802.3 (10BASE-5)/Ethernet application, the Am7996 interfaces the coaxial (0.4 diameter) media to the DTE through an isolating pulse transformer and the 78 attachment unit interface (AUI) cable. In IEEE 802.3 10BASE-2—Cheapernet applications, the Am7996 typi- cally resides inside the DTE with its signals to the DTE iso- lated and the coaxial (0 ...
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... Notes: Pin 1 is marked for orientation Connection 2 (IMR+ ) (ILACC ) V CC2 COLL OSC V COL NC RXT NC VC REF TAP SHIELD SQE^TEST V TX– DO+ TXT V TX+ 07506E-2 Am7996 (HIMIB ) PLCC DI+ V COL 5 17 DI– RXT TAP SHIELD ...
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... J = 20-Pin Plastic Leaded Chip Carrier (PL 020) SPEED Not Applicable Valid combinations list configurations planned to be sup- ported in volume for this device. Consult the local AMD sales office to confirm availability of specific valid combinations and to check on newly released combinations. Am7996 Valid Combinations 3 ...
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... V CC2 SQE Timing Reference (Positive Supply Voltage) Timing reference return for SQE oscillator and analog signal ground Negative Logic Supply and IC Substrate Am7996 . When a resistor is connected between EE , then internal transmit and receive EE and COLL OSC. and disabled by connecting and V ...
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... Re- quired rise and fall times of data transmitted on the net- work are maintained by the Am7996 Tap Driver. The tap driver’s output is connected to the media through exter- nal isolating diodes. To safeguard network integrity, the driver is disabled whenever power falls below the mini- mum operation voltage ...
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... AMD APPLICATIONS The Am7996 is compatible with Ethernet Version 2 and IEEE 802.3 10BASE5 and 10BASE2 applications. (See Figure 1). Ethernet Local Local CPU Memory Local Bus AUI - Attachment Unit Interface DTE - Data Terminal Equipment MAU - Media Access Unit Cheapernet Local Local CPU Memory Local Bus Table 1 ...
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... Cheapernet (IEEE 802.3, 10BASE2) Reliability Inc: 2VP5U9 Valor Electronics: PM7102 5. The capacitance of C3, Am7996 package, D3 and the printed circuit board should add up to 180 pF 20%. 6. The capacitance of C1, Am7996 package and the printed circuit board should add pF. 7. Figure 2 used for production testing of all parameters that are tested. ...
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... Cheapernet (IEEE 802.3, 10BASE2) Reliability Inc: 2VP5U9 Valor Electronics: PM7102 5. The capacitance of C3, Am7996 package, D3 and the printed circuit board should add up to 180 pF 20%. 6. The capacitance of C1, Am7996 package and the printed circuit board should add pF. 7. R9, R10 and C4 are for Receive Mode Collision detection only. ...
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... Since there are no severe layout restrictions on the transmitter circuit, the layout can be simplified by omit- ting power and ground planes from the whole area on the right side of the Am7996 as shown in Figure 4-1. 20 R5, R6, R4 RXT C1, C2 ...
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... OPERATING RANGES – +150 C Commercial (C) Devices Ambient Temperature ( +70 C Supply Voltage (V –12 +0.5 V Operating ranges define those limits between which the func- tionality of the device is guaranteed –12 +0.5 V – +0.5 V Am7996 AMD ) . . . . . . . + –8 –9 ...
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... MHz Preamble –2 Max (Note Pins 15, 17—No Connections) EE Test Conditions Ceramic DIP Plastic DIP/PLCC Am7996 Commercial Min Typ Max 0 –0.05 –0.425 –1.625 –2.0 –2.2 –0.925 –1.0 –1 ...
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... V tap V tap 50% Point at RXT at Zero Crossing at DI Outputs 20%–80%, R 80%–20 > V tap V tap (Note 10.0 MHz 10.0 MHz CI Am7996 Commercial Min Typ Max 105 160 200 1.0 –2.0 +2 340 ...
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... Determined by Am7966 External Component Diagrams values for R4 and C1 production test, input signal applied thru transformer to DO inputs. 10. Figure 2 used for production testing of all parameters. *Notes listed correspond to the respective references made in DC Characteristics and Switching Characteristics tables. 14 Am7996 load equivalent to the ...
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... Don’t Care, Any Change Permitted Does Not Apply 1/3 PE64102/PE64107 (or equivalent) + DUT – AUI Transmit (DI+, DI–,; CI+, CI–) RLX = 25 B. Test Load (TXT) Am7996 AMD OUTPUTS Will be Steady Will be Changing from Will be Changing from Changing, State Unknown Center ...
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... AMD SWITCHING WAVEFORMS DO± V IDC 2 COAX TAP (Transmit) 5 NEAR END V CAT max COAX TAP (Receive) DI± 90% 10 Transmit Function 50 Receiver Function Am7996 50% V TXTL 07506E- CAT min – 07506E-15 ...
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... SWITCHING WAVEFORMS DO± COAX TAP (Transmit) CI± * SQE^TEST pin connected DO± COAX TAP (Transmit) CI± SQE Test* 50% 13 Jabber Function Am7996 AMD TXTL – 07506E- TXTL 50 07506E-17 17 ...
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... This signal is used for test purposes. It represents the average value of the signal that might be seen on the coax tap when a collision occurs. 18 80% 20 – /CI Parameters –2 V Collision Detect Timing Am7996 –V OD 07506E- COT MIN V OD 350 – 07506E-19 ...