ML4664CQ Sirenza Microdevices, ML4664CQ Datasheet
ML4664CQ
Available stocks
Related parts for ML4664CQ
ML4664CQ Summary of contents
Page 1
GENERAL DESCRIPTION The fully pin-compatible ML4664/ML4669 pair provide conversion from 10BASE-T copper media to 10BASE-FL fiber media in a single chip. They are compliant with Ethernet IEEE 802.3 10BASE-T and 10BASE-FL standards. The ML4664/69 uses a single 5V supply, and ...
Page 2
ML4664/ML4669 PIN CONFIGURATION 2 ML4664/ML4669 28-Pin PLCC (Q28 TPINN TxCAP0 8 22 TxCAP1 GND TPOUTN 11 19 TPOUTP ...
Page 3
PIN DESCRIPTION (Pin Number in Parentheses is for TQFP Version) PIN NAME FUNCTION 1(29 capacitor from this pin to V TIMER determines the Link Monitor response time. 2(30) LTF Link Test Fail. Active high. Normally this pin is ...
Page 4
ML4664/ML4669 PIN DESCRIPTION (Continued) PIN NAME FUNCTION 17(15) LMON Link Monitor “Low Light” LED status output. Pulled low when voltage on the OPINP, OPINN inputs exceed min threshold set by V transitions on OPINP, OPINN indicating an idle signal or ...
Page 5
ABSOLUTE MAXIMUM RATINGS Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. Power Supply Voltage Range V CC ................................................................... Input Voltage ...
Page 6
ML4664/ML4669 ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER (SEE FIGURE 1) t Twisted Pair Start-up Delay TPODY t Twisted Pair Steady State Delay TPSDY t Twisted Pair Turn Off Pulse Width TPSPW t Twisted Pair Jitter ...
Page 7
OPINP VALID DATA OPINN t TPODY TPOUTP VALID TPOUTN Figure Timing Diagram TPINP TPINN t OPSDY t OPODY I(OPOUT) Figure Timing Diagram OPINP OPINN LMON Figure 3. Optical Link Verification No Light ...
Page 8
ML4664/ML4669 OPINP OPINN LMON Figure 5. Optical Link Verification Light On Timing Diagram TPINP TPINN VALID DATA OR LINK PULSE LTF TPINP TPINN Figure 6. Twisted Pair Link Verification Timing Diagram TPOUTP TPOUTN TPINP, TPINN OR OPINP, OPINN TPLED OR ...
Page 9
SYSTEM DESCRIPTION OPTICAL TRANSMISSION The optical transmit function consists of detecting the presence of data from the TP inputs TPINP and TPINN and driving that data onto the fiber optic LED transmitter. A positive signal on the TPINP lead relative ...
Page 10
ML4664/ML4669 SYSTEM DESCRIPTION (Continued) Link test pulses that do not occur within at most 25 to 150ms of each other are not considered consecutive. In addition, detected pulses that occur within a time between 2 to 7ms of a previous ...
Page 11
SYSTEM DESCRIPTION (Continued) TPOUTP and TPOUTN, can drive a 100 , 150 a variety of impedances that are characteristic of the twisted pair wire. RTSETTP selects the current into the TPOUTP, TPOUTN pins. This current along with the characteristic impedance ...
Page 12
ML4664/ML4669 INPUTS TPIN OPIN None None LPS None Data None None Idle LPS Idle Data Idle None Data LPS Data Data Data LPS = Link Pulses ON = Low OFF = High Some simplifications made regarding LMON and LTF state ...
Page 13
SYSTEM DESCRIPTION (Continued) OPTICAL LINK DETECT CIRCUIT AND LOW LIGHT The link detect circuit monitors the input signal and determines when the input falls below a preset voltage level. When the input falls below a preset voltage, the ML4664/ML4669 goes ...
Page 14
ML4664/ML4669 0.1 F PWR L1** R12 * L1, L2: Fair-rite 2743019447 510 Ferrite beads GND # V CC R14 VALOR SF1301 R15 ...
Page 15
PHYSICAL DIMENSIONS 0.485 - 0.495 (12.32 - 12.57) 0.450 - 0.456 (11.43 - 11.58) PIN 1 ID 0.042 - 0.048 (1.07 - 1.22) 8 0.050 BSC (1.27 BSC) 0.026 - 0.032 (0.66 - 0.81) 0.013 - 0.021 (0.33 - 0.53) ...
Page 16
... ML4664/ML4669 ORDERING INFORMATION PART NUMBER ML4664CH ML4664CQ ML4664IQ ML4669CH ML4669CQ ML4669IQ © Micro Linear 1998 registered trademark of Micro Linear Corporation. All other trademarks are the property of their respective owners. Products described herein may be covered by one or more of the following U.S. patents: 4,897,611; 4,964,026; 5,027,116; 5,281,862; 5,283,483; ...