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PDF MAX3752 Data sheet ( Hoja de datos )
| Número de pieza | MAX3752 | |
| Descripción | 2.125Gbps / 3.3V Quad-Port Bypass with Repeater | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-1701; Rev 2; 2/01
2.125Gbps, 3.3V
Quad-Port Bypass with Repeater
General Description
The MAX3752 quad-port bypass IC is designed for use
in the Fibre Channel Arbitrated Loop topology. This
device consists of four serially connected port bypass
circuits (PBCs) and a repeater that provides clock and
data recovery (CDR).
The quad-port bypass circuit allows connection of up to
four Fibre Channel L-Ports, which can each be enabled
or bypassed by controlling the PBC select inputs.
Additional quad PBCs can be cascaded for applica-
tions requiring more than four L-Ports. To reduce the
external parts count, all signal inputs and outputs have
internal termination resistors.
The MAX3752 complies with Fibre Channel jitter toler-
ance requirements and can recover data signals with up
to 0.7 unit intervals (UIs) of high-frequency jitter. When
the repeater is not needed, it can be disabled to reduce
power consumption. A fully integrated phase-locked loop
(PLL) provides a frequency lock indication and does not
need an external reference clock.
________________________Applications
2.125Gbps Fibre Channel
Fibre Channel Data Storage Systems
Storage Area Networks
Fibre Channel Hubs
Features
o Four High-Speed Data Ports
o Meets Fibre Channel Jitter Tolerance
Requirements
o Large Output Signal Swing (>1000mVp-p)
o +3.0V to +3.6V Single-Supply Voltage
o On-Chip Termination Resistors Compatible with
75Ω Transmission Lines at All Ports
PART
MAX3752CCM
*EP = Exposed pad
Ordering Information
TEMP. RANGE
0°C to +70°C
PIN-PACKAGE
48 TQFP-EP*
Pin Configuration
Typical Operating Circuit appears at end of data sheet.
GND
LIN1-
LIN1+
GND
LOUT1-
LOUT1+
GND
GND
IN-
IN+
GND
CLKEN
1
2
3
4
5
6
7
8
9
10
11
12
MAX3752
36 GND
35 LOUT4+
34 LOUT4-
33 GND
32 LIN4+
31 LIN4-
30 GND
29 GND
28 OUT-
27 OUT+
26 GND
25 LOCK
TQFP-EP*
* Exposed pad is connected to ground.
________________________________________________________________ Maxim Integrated Products 1
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
1 page  
2.125Gbps, 3.3V
Quad-Port Bypass with Repeater
Typical Operating Characteristics (continued)
(TA = +25°C and VCC = +3.3V, unless otherwise noted.)
1.00E+00
1.00E+02
OUTPUT JITTER—BATHTUB PLOT
2Gbps CRPAT (NO JITTER ON INPUTS)
1.00E+04
1.00E+06
1.00E+08
1.00E+10
1.00E+12
1.00E+14
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
DATA SAMPLING TIME RELATIVE TO FIRST ZERO
CROSSING (UI)
INPUT VSWR
vs. FREQUENCY (BY SIMULATION)
4
1.00E+00
1.00E+02
OUTPUT JITTER—BATHTUB PLOT
2Gbps CRPAT
(0.38UI DJ, 0.63UI TJ ON INPUTS)
1.00E+04
1.00E+06
1.00E+08
1.00E+10
1.00E+12
1.00E+14
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0
DATA SAMPLING TIME RELATIVE TO FIRST ZERO
CROSSING (UI)
OUTPUT VSWR
vs. FREQUENCY (BY SIMULATION)
4
33
22
1
0.1 0.4 0.7 1.0 1.3 1.6 1.9 2.2 2.5
FREQUENCY (GHz)
1
0.1 0.4 0.7 1.0 1.3 1.6 1.9 2.2 2.5
FREQUENCY (GHz)
_______________________________________________________________________________________ 5
5 Page 
2.125Gbps, 3.3V
Quad-Port Bypass with Repeater
Typical Operating Circuit
DISK
DRIVE
DISK
DRIVE
VCC
CF
0.47µF
L_PORT n
IN OUT SEL
2
2
L_PORT n+1
IN OUT SEL
2
2
VCC CDREN
GND LOCK
IN+ OUT+
IN-
MAX3752
OUT-
CFP CLKEN
CFM LOCKEN
VC VCC
N.C.
Z0 = 75Ω
Z0 = 75Ω
CF
0.47µF
DISK
DRIVE
DISK
DRIVE
L_PORT n+4
IN OUT SEL
2
2
L_PORT n+5
IN OUT SEL
2
2
VCC CDREN
GND LOCK
IN+ OUT+
IN-
MAX3752
OUT-
CFP CLKEN
CFM LOCKEN
VCC
N.C.
2
2
IN OUT SEL
2
2
IN OUT SEL
L_PORT n+2
L_PORT n+3
DISK
DRIVE
DISK
DRIVE
2
2
IN OUT SEL
2
2
IN OUT SEL
L_PORT n+6
L_PORT n+7
DISK
DRIVE
DISK
DRIVE
NOTE: ALL HIGH-SPEED INPUTS AND OUTPUTS (IN±, OUT±, LIN±, AND LOUT±) SHOULD BE CONNECTED USING CONTROLLED
IMPEDANCE TRANSMISSION LINES. AC-COUPLING MAY ALSO BE REQUIRED. ALL CAPACITORS ARE 0.1µF UNLESS OTHERWISE INDICATED.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX3752.PDF ] | |
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