ML6692CQ Micro Linear, ML6692CQ Datasheet

no-image

ML6692CQ

Manufacturer Part Number
ML6692CQ
Description
100BASE-TX physical layer with MII
Manufacturer
Micro Linear
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ML6692CQ
Manufacturer:
ML
Quantity:
5 510
Part Number:
ML6692CQ
Manufacturer:
ZILOG
Quantity:
5 510
Part Number:
ML6692CQ
Manufacturer:
ML
Quantity:
20 000
GENERAL DESCRIPTION
The ML6692 implements the complete physical layer of
the Fast Ethernet 100BASE-TX standard. The ML6692
interfaces to the controller through the standard-compliant
Media Independent Interface (MII). The ML6692
functionality includes auto-negotiation, 4B/5B encoding/
decoding, Stream Cipher scrambling/descrambling,
125MHz clock recovery/generation, receive adaptive
equalization, baseline wander correction, and MLT-3/
10BASE-T transmitter.
For applications requiring 100Mbps only, such as
repeaters, the ML6692 offers a single-chip per-port
solution. For 10/100 dual speed adapters or switchers,
10BASE-T functionality may be attained using Micro
Linear’s ML2653, or by using an Ethernet controller that
contains an integrated 10BASE-T PHY.
BLOCK DIAGRAM
18
19
17
10
12
14
16
21
23
24
25
1
9
3
4
5
6
7
8
TXD3
TXD0
TXCLKIN
TXD2
TXD1
TXEN
TXER
MDC
RXCLK
RXD3
RXD2
RXD1
RXD0
RXDV
RXER
MDIO
TXCLK
CRS
COL
COLLISION LOGIC
MII MANAGEMENT
5B/4B DECODER
4B/5B ENCODER
STATE MACHINE
STATE MACHINE
DESCRAMBLER
CARRIER AND
PCS TRANSMIT
PCS RECEIVE
SCRAMBLER
REGISTERS
(PLCC Package)
100BASE-TX Physical Layer with MII
29
NRZ TO NRZI ENCODER
NRZI TO NRZ DECODER
AND CONTROL LOGIC
AUTO-NEGOTIATION
CLOCK AND DATA
MLT-3 ENCODER
DESERIALIZER
30
SERIALIZER
RECOVERY
50
FEATURES
CLOCK SYNTHESIZER
51
Single-chip 100BASE-TX physical layer
Compliant to IEEE 802.3u 100BASE-TX standard
Supports adapter, repeater and switch applications
Single-jack 10BASE-T/100BASE-TX solution when used
with external 10Mbps PHY
Compliant MII (Media Independant Interface)
Auto-negotiation capability
4B/5B encoder/decoder
Stream Cipher scrambler/descrambler
125MHz clock recovery/generation
Baseline wander correction
Adaptive equalization and MLT-3 encoding/decoding
Supports full-duplex operation
47
FLP/100BASE-TX/10BASE-T
TWISTED PAIR DRIVER
31
BLW CORRECTION
MLT-3 DECODER
LOOPBACK MUX
INITIALIZATION
EQUALIZER
REGISTER
49
32
48
33
35
ML6692
TPOUTN
LINK100
TPOUTP
CMREF
RGMSET
TPINN
TPINP
RTSET
April 1999
40
45
44
46
36
43
39
37
1

Related parts for ML6692CQ

ML6692CQ Summary of contents

Page 1

GENERAL DESCRIPTION The ML6692 implements the complete physical layer of the Fast Ethernet 100BASE-TX standard. The ML6692 interfaces to the controller through the standard-compliant Media Independent Interface (MII). The ML6692 functionality includes auto-negotiation, 4B/5B encoding/ decoding, Stream Cipher scrambling/descrambling, 125MHz ...

Page 2

ML6692 PIN CONFIGURATION DGND1 DGND2 DGND3 2 ML6692 52-Pin PLCC (Q52 TXER 8 TXCLK 9 RXD3 10 11 RXD2 12 DVCC1 13 RXD1 14 15 RXD0 16 ...

Page 3

PIN CONFIGURATION TXCLK 1 RXD3 2 DGND1A 3 DGND1B 4 RXD2 5 DVCC1A 6 DVCC1B 7 RXD1 8 DGND2A 9 DGND2B 10 RXD0 11 RXCLK 12 CRS 13 COL 14 DGND3A 15 DGND3B 16 ML6692 64-Pin TQFP (H64-10 ...

Page 4

ML6692 PIN DESCRIPTION (Pin Numbers for TQFP package in parentheses) PIN NAME FUNCTION 1 (56) TXCLKIN Transmit clock TTL input. This 25MHz clock is the frequency reference for the internal transmit PLL clock multiplier. This pin should be driven by ...

Page 5

PIN DESCRIPTION (Continued) PIN NAME FUNCTION 25 (21) MDIO MII Management Interface data TTL input/output. Serial data are written to and read from the ML6692’s management registers through this I/O pin. Input data is sampled on the rising edge of ...

Page 6

ML6692 PIN DESCRIPTION (Continued) 37 (36) RTSET Transmit level bias resistor input. An external 2.49kW, 1% resistor connected between RTSET and AGND3 sets a precision constant bias current for the twisted pair transmit level. 38 (37, 38) AGND3 Analog ground. ...

Page 7

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. V Supply Voltage Range .................. GND –0. ...

Page 8

ML6692 DC ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER TRANSMITTER (Continuied) X TPOUTP/N Differential Output ERR Current Error X TPOUTP/N 100BASE-X Output CMP100 Current Compliance Error V TPOUTP/N 10BASE-T Output OCM10 Voltage Compliance Range V 10BTTXNN/P Input ICM10 Common-Mode Voltage Range POWER SUPPLY ...

Page 9

AC ELECTRICAL CHARACTERISTICS Over full range of operating conditions unless otherwise specified SYMBOL PARAMETER RECEIVER V TPINP/N Input Common-Mode ICM Voltage (CMREF) TRANSMITTER (NOTE 3) t TPOUTP-TPOUTN Differential TR/F Rise/Fall Time t TPOUTP-TPOUTN Differential TM Rise/Fall Time Mismatch t TPOUTP-TPOUTN ...

Page 10

ML6692 AC ELECTRICAL CHARACTERISTICS SYMBOL PARAMETER MDC-MDIO (MII MANAGEMENT INTERFACE) t Write Setup Time, MDIO Data SPWS Valid to MDC Rising Edge 1.4V Point t Write Hold Time, MDIO Data SPWH Valid After MDC Rising Edge 1.4V Point t Read ...

Page 11

V CC TPOUTP R LP 200 R LP 200 TPOUTN TXCLKIN TXCLK TXD<3:0> TXER TXEN t TPS Figure 2. MII Transmit Timing RXCLK RXD<3:0> RXER RXDV t RCS Figure 3. MII Receive Timing MDC MDIO t SPWS Figure 4. MII ...

Page 12

ML6692 FUNCTIONAL DESCRIPTION TRANSMIT SECTION 100BASE-TX Operation The transmitter includes everything necessary to accept 4-bit data nibbles clocked in at 25MHz at the MII and output scrambled, 5-bit encoded MLT-3 signals into twisted pair at 100Mbps. The on-chip transmit PLL ...

Page 13

FUNCTIONAL DESCRIPTION does not detect or correct errors in the polarity of fast or normal link pulses. USING THE ML6692 WITH AUTOMATIC LINK CONFIGURATION The ML6692 supports automated link protocol negotiation and configuration. In the ML6692, the auto negotiation state ...

Page 14

ML6692 INITIALIZATION INTERFACE The ML6692 has an Initialization Interface to allow register programming that is not supported by the MII Management Interface. The intitialization data is loaded at power-up and cannot be changed afterwards. The pin EDIN selects one of ...

Page 15

INITIALIZATION INTERFACE REGISTER BIT(S) NAME I.15 PHY A4 I.14 PHY A3 I.13 PHY A2 I.12 PHY A1 I.11 PHY A0 I.10 10HDUP I.9 10FDUP I.8 100T4 I.7 ISODIS I.6 REPEATER I.5–I.0 Not used Note: Bits I<10:8> are the values for ...

Page 16

ML6692 MII MANAGEMENT INTERFACE REGISTERS BIT(S) NAME 1.15 100BASE-T4 1.14 100BASE-TX full duplex 1.13 100BASE-TX half duplex 1.12 10Mb/s full duplex 1.11 10BASE-T (half duplex) 1.10 – 1.6 Not Used 1.5 Auto negotiation compl. 1.4 Not Used 1.3 Auto negotiation ...

Page 17

MII MANAGEMENT INTERFACE REGISTERS BIT(S) NAME 5.15 Next Page 5.14 Acknowledge 5.13 Remote fault 5.12-5.10 Reserved 5.9 100BASE-T4 capability 5.8 100BASE-TX full duplex 5.7 100BASE-TX 5.6 10BASE-T full duplex 5.5 10BASE-T 5.4-5.1 Selector field 5.0 Selector field BIT(S) NAME 6.15-6.5 ...

Page 18

ML6692 VCC GND VCC TX+ FD GND LTP TXC RPOL TXD COL TXE CS0 RTX INTERFACE 7-WIRE 18 DUPLEX 10BTTXINN 10BTTXINP 10BTRCV 10BTLINKEN AVCC1 TXCLKIN AGND1 TXD3 TXD2 TXD1 TXD0 TXEN Table 8. 10/100 BASE-T Application Circuit ECLK SEL10FD/ SEL10HD ...

Page 19

ML6692 SCHEMATIC Figure 8 shows a general 10BASE-T and 100BASE-TX design using the ML2653 (10BASE-T PHY) and ML6692 (100BASE-TX PHY). The inductors L1 and L2 are for the purpose of improving return loss. Capacitor C7 is recommended. It decouples some ...

Page 20

ML6692 PHYSICAL DIMENSIONS 0.785 - 0.795 (19.94 - 20.19) 0.750 - 0.754 (19.05 - 19.15) 1 PIN 1 ID 0.042 - 0.048 (1.07 - 1.22 0.050 BSC (1.27 BSC) 0.026 - 0.032 (0.66 - 0.81) 0.013 - 0.021 ...

Page 21

... ORDERING INFORMATION PART NUMBER ML6692CH ML6692CQ Micro Linear makes no representations or warranties with respect to the accuracy, utility, or completeness of the contents of this publication and reserves the right to make changes to specifications and product descriptions at any time without notice. No license, express or implied, by estoppel or otherwise, to any patents or other intellectual property rights is granted by this document ...

Related keywords