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ML6673 Datasheet(PDF) 2 Page - Micro Linear Corporation |
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ML6673 Datasheet(HTML) 2 Page - Micro Linear Corporation |
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2 / 8 page  ML6673 2 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 14 15 16 17 18 19 20 4 3 2 1 32 31 30 RXOUT+ RVCCD SD– SD+ N/C TGNDD LPBK TXOFF N/C RRSET1 RRSET2 N/C N/C RGND N/C N/C TVCCA TGNDA 1 2 3 4 5 6 7 8 24 23 22 21 20 19 18 17 9 10 11 121314 15 16 32 31 30 29 28 27 26 25 TPOUT– TPOUT+ RTSET2 RTSET1 TVCCD TXIN– TXIN+ N/C RRSET1 TPIN– TPIN+ CMREF N/C N/C RVCCA RXOUT– ML6673 32-Pin PCC (Q32) ML6673 32-Pin TQFP (H32-7) PIN CONFIGURATION NAME FUNCTION NAME FUNCTION TXIN+, TXIN– These differential ECL100K compatible inputs receive NRZI data from the PHY for transmission. TPOUT+, Outputs from the NRZI-MLT3 state TPOUT– machine drive these differential current outputs. The transmitter filter/transformer module connects the media to these pins. LPBK This TTL input enables transmitter- receiver loopback internally when asserted low. When LPBK is asserted, signal detect is asserted. TXOFF This TTL input forces the NRZI-MLT3 state machine to a high impedence state when asserted low and shuts off transmit bias current. RTSET1, An external 1% resistor connected RTSET2 between these pins controls the transmitter output current amplitude. IOUT = 64 x 1.25V/RTSET TVCCA, Separate analog and digital transmitter TVCCD power supply pins help to isolate sensitive circuitry from noise generating digital functions. Both supplies are nominally +5 volts. PIN DESCRIPTION TGNDA, Analog and digital transmitter grounds TGNDD provide separate return paths for clean and noisy signals. SD+, SD– These differential ECL100K compatible outputs indicate the presence of a data signal with an amplitude exceeding a preset threshold. TPIN+, TPIN– MLT-3 encoded data from the receiver filter/transformer module enters the receiver through these pins. RXOUT+, Differential ECL100K compatible outputs RXOUT– provide NRZI encoded data to the PHY. RRSET1, Internal time constants controlling the RRSET2 equalizer’s transfer function are set by an external resistor connected across these pins. CMREF This pin provides a DC common mode reference point for the receiver inputs. RVCCA, Analog and digital supply pins are RVCCD separated to isolate clean and noisy circuit functions. Both supplies are nominally +5 volts. RGND Receiver ground. |
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