ML4664CQ Sirenza Microdevices, ML4664CQ Datasheet

no-image

ML4664CQ

Manufacturer Part Number
ML4664CQ
Description
Manufacturer
Sirenza Microdevices
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ML4664CQ
Manufacturer:
ML
Quantity:
20 000
Company:
Part Number:
ML4664CQ
Quantity:
300
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 requires no
crystal or clock.
Their 10BASE-FL transmitter offers a current drive output
that directly drives a fiber optic LED transmitter. Their
receiver offers a highly stable fiber optic data quantizer
capable of accepting input signals as low as 2mV
a 55dB dynamic range.
The 10BASE-T portion of the pair contains current driven
transmitter outputs that offer superior performance
because their switching is highly symmetric, resulting in
lowered RFI noise and jitter. By changing one external
resistor the pair easily interfaces to 100
twisted pair, 150 shielded twisted pair, or a range of
other characteristic impedances.
The ML4664 does not pass along disconnect information,
while the ML4669 does. A loss of light at the optical
inputs does not stop link pulses from being sent at the
twisted pair transmitter in the ML4664, but in the
ML4669 the link pulses stop. Also, a loss of link at the
twisted pair inputs will not stop the optical transmitter
from sending idle in the ML4664, but the ML4669 stops
sending idle.
BLOCK DIAGRAM
TPOUT
TPIN
2
2
RTSETTP
RX SQUELCH
GENERATOR
LINK PULSE
LINK PULSE
POLARITY
CORRECT
TxCAP0
CHECK
TP
TP
TX
LTF
unshielded
TxCAP1
10BASE-FL to 10BASE-T Converter
TPLED
P-P
with
LMON
(LOW LIGHT)
POLDIS
RX SQUELCH
FEATURES
10BASE-FL FEATURES:
10BASE-T FEATURES:
TP
GENERATOR
Full duplex operation
Five network status LED outputs
Industrial temperature option
Highly stable data quantizer with 55dB input dynamic
range
Input sensitivity as low as 2mV
Up to 100mA maximum current driven fiber optic LED
output for accurate launch power (PLCC package)
Current driven output for low RFI noise and low jitter
Drives 100 unshielded or 150 shielded twisted pair
Polarity detect status pin capable of driving an LED
Automatic polarity correction
On-chip link test with enable/disable option
OPLED
IDLE
RRSET
ML4664/ML4669
THRESHOLD
GENERATOR
QUANTIZER
V DC
OP
TX
RTSETOP
C TIMER
P-P
2
OPOUT
OPVCC
OPIN
August 1998
1

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; ...

Related keywords