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PDF MAX3754 Data sheet ( Hoja de datos )
| Número de pieza | MAX3754 | |
| Descripción | Dual-Rate / 1Gbps/2Gbps Fibre Channel Quad-Port Bypass ICs with Repeater | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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19-2098; Rev 1; 1/02
Dual-Rate, 1Gbps/2Gbps Fibre Channel
Quad-Port Bypass ICs with Repeater
General Description
The MAX3754/MAX3755 quad-port bypass circuits
(PBCs) are designed for use in Fibre Channel Arbitrated
Loop applications. Each consists of four serially con-
nected port bypass circuits and a repeater that provides
clock and data recovery. The quad-PBC allows connec-
tion of up to four Fibre Channel L-ports; each can be
enabled or bypassed by individual logic inputs. To
reduce the external parts count, all signal inputs and
outputs have internal termination resistors. The
MAX3754/MAX3755 comply with Fibre Channel jitter tol-
erance requirements and can recover data signals with
up to 0.7 unit intervals (UIs) of high-frequency jitter.
These devices operate from a single +3.3V supply.
Features
o Pin Selectable 1.0625Gbps/2.125Gbps Dual-Rate
Operation
o Meets Fibre Channel Jitter Tolerance
o 1400mV Typical Differential Output Swing
o 3.0V to 3.6V Operation
o No Reference Clock Required
o Frequency Lock Indication
o 1W Power Consumption (MAX3754) at +3.3V
o 150Ω or 100Ω Differential L-Port Impedance
Available
Applications
1.0625Gbps/2.125Gbps Dual-Rate Fibre Channel
Fibre Channel Data Storage Systems
Storage Area Networks
Fibre Channel Hubs
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
Pin Configuration
MAX3754
MAX3755
36 GND
35 LOUT4+
34 LOUT4-
33 GND
32 LIN4+
31 LIN4-
30 GND
29 GND
28 OUT-
27 OUT+
26 GND
25 LOCK
PART
MAX3754CCM
MAX3755CCM
TEMP RANGE
0°C to +70°C
0°C to +70°C
TQFP-EP*
*EXPOSED PAD MUST BE CONNECTED TO GROUND
Ordering Information
PIN-PACKAGE
48 TQFP-EP
48 TQFP-EP
DIFFERENTIAL LIN
AND LOUT
TERMINATION
150Ω
100Ω
DIFFERENTIAL IN
AND OUT
TERMINATION
100Ω
100Ω
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1 page  
Dual-Rate, 1Gbps/2Gbps Fibre Channel
Quad-Port Bypass ICs with Repeater
Typical Operating Characteristics
(VCC = +3.3V, CF = 0.047µF, TA = +25°C, unless otherwise noted.)
SUPPLY CURRENT vs. TEMPERTURE
(MAX3754)
340
OUTPUT EYE DIAGRAM AT OUT±
(1.0625Gbps CRPAT, CDR ENABLED)
OUTPUT EYE DIAGRAM AT OUT±
(2.125Gbps CRPAT, CDR ENABLED)
320
CDR ENABLED
300
280
260
240 CDR DISABLED
200mV/
div
INPUT =
400mVP-P
DJ = 0.4UI
RJ = 0.2UI
200mV/
div
INPUT =
400mVP-P
DJ = 0.4UI
RJ = 0.2UI
220
200
0
10 20 30 40 50 60 70
TEMPERATURE (°C)
200ps/div
100ps/div
1
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
0
OUTPUT JITTER BATHTUB PLOT
(1.0625Gbps)
1.0625Gbps CRPAT AT INPUT
(DJ = 0.4UI, RJ = 0.2UI)
0.2 0.4 0.6 0.8
DATA SAMPLING TIME RELATIVE TO
FIRST ZERO CROSSING (UI)
1.0
JITTER TOLERANCE
1.0625Gbps
10
CJTPAT
DJ = 0.4UI
RJ = 0.2UI
1
1
10-1
10-2
10-3
10-4
10-5
10-6
10-7
10-8
10-9
10-10
10-11
10-12
0
OUTPUT JITTER BATHTUB PLOT
(2.125Gbps)
2.125Gbps CRPAT AT INPUT
(DJ = 0.4UI, RJ = 0.2UI)
0.2 0.4 0.6 0.8
DATA SAMPLING TIME RELATIVE TO
FIRST ZERO CROSSING (UI)
1.0
JITTER TOLERANCE
2.125Gbps
10
CJTPAT
DJ = 0.4UI
RJ = 0.2UI
1
FIBRE CHANNEL
MASK
0.1
FIBRE CHANNEL
MASK
0.1
0.01
10k
100k 1M
FREQUENCY (Hz)
10M
0.01
10k
100k 1M
FREQUENCY (Hz)
10M
_______________________________________________________________________________________ 5
5 Page 
Dual-Rate, 1Gbps/2Gbps Fibre Channel
Quad-Port Bypass ICs with Repeater
Typical Operating Circuit
DISK
DRIVE
L_PORT n
IN OUT SEL
DISK
DRIVE
L_PORT n+1
IN OUT SEL
DISK
DRIVE
L_PORT n+4
IN OUT SEL
DISK
DRIVE
L_PORT n+5
IN OUT SEL
VCC
CF
0.047µF
VCC
GND
IN+
IN-
CF+
CF-
MAX3754
MAX3755
CDREN
LOCK
OUT+
OUT-
CLKEN
RATESEL
VCC VCC
Z0 = 50Ω
Z0 = 50Ω
CF
0.047µF
VCC
GND
IN+
IN-
CF+
CF-
MAX3754
MAX3755
CDREN
LOCK
OUT+
OUT-
CLKEN
RATESEL
VCC
IN OUT SEL
L_PORT n+2
DISK
DRIVE
IN OUT SEL
L_PORT n+3
DISK
DRIVE
IN OUT SEL
L_PORT n+6
DISK
DRIVE
IN OUT SEL
L_PORT n+7
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.
FIGURE SHOWS 1.0625Gbps OPERATION. FOR 2.125Gbps OPERATION, CONNECT RATESEL TO VCC.
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX3754.PDF ] | |
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