|
|
PDF MAX3800UGJ Data sheet ( Hoja de datos )
| Número de pieza | MAX3800UGJ | |
| Descripción | 3.2Gbps Adaptive Equalizer and Cable Driver | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de MAX3800UGJ (archivo pdf) en la parte inferior de esta página. Total 13 Páginas | ||
|
No Preview Available !
19-1953; Rev 1; 11/01
3.2Gbps Adaptive Equalizer
and Cable Driver
General Description
The MAX3800 is a +3.3V adaptive cable equalizer and
cable driver implemented together on a single chip. It is
designed for coaxial and twin-axial cable point-to-point
communications applications. The driver features differ-
ential current-mode logic (CML) inputs and outputs as
well as adjustable output amplitude. The equalizer
includes differential CML data inputs and outputs, a
loss-of-signal (LOS) output, and a cable integrity moni-
tor (CIM) output.
The adaptive cable equalizer is capable of equalizing
differential or single-ended signals at data rates up to
3.2Gbps. It automatically adjusts to attenuation caused
by skin-effect losses of up to 30dB at 1.6GHz. The
equalizer effectively extends the usable length of cop-
per cable in high-frequency interconnect applications.
The MAX3800 is available in a 32-pin TQFP package
with exposed pad and consumes only 200mW at
+3.3V. The driver can be disconnected from the power
supply when it is not needed, resulting in a 40% reduc-
tion in supply current.
Features
o Single +3.3V Operation
o Typical Power Dissipation = 200mW at +3.3V
o Data Rates Up to 3.2Gbps
o Adjustable Cable Driver Output Amplitude
o Equalizer Automatically Adjusts for Different
Cable Lengths
o 0dB to 30dB Equalization at 1.6GHz (3.2Gbps)
o Loss-of-Signal (LOS) Indicator
o Cable Integrity Monitor (CIM)
o On-Chip Input and Output Terminations
o Low External Component Count
o Operating Temperature Range = 0°C to +85°C
o ESD Protection on Cable Inputs and Outputs
Applications
High-Speed Links in Communications
and Data Systems
Backplane and Interconnect Applications
SDH/SONET Transmission Equipment
PART
MAX3800UGJ
MAX3800UHJ
*EP = exposed pad
Ordering Information
TEMP. RANGE
0°C to +85°C
0°C to +85°C
PIN-PACKAGE
32 QFN
32 TQFP-EP*
Pin Configuration appears at end of data sheet.
+3.3V
DIN DOUT
MAX3800
EOUT
LOS
RMOD
EIN
CIM
Typical Application Circuit
+3.3V
EIN EOUT
MAX3800
DOUT
LOS
RMOD
DIN
CIM
THIS SYMBOL INDICATES A CONTROLLED-IMPEDANCE TRANSMISSION LINE.
________________________________________________________________ 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  
3.2Gbps Adaptive Equalizer
and Cable Driver
Typical Operating Characteristics (continued)
(TA = +25°C, VCC = +3.3V, all jitter measurements done at 3.2Gbps, 700mV cable input with 213-1 PRBS pattern with 100 consecutive
ones and 100 consecutive zeros substituted. Note: Test pattern produces near worst-case jitter results. Results will vary with pattern,
unless otherwise noted.)
EQUALIZER INPUT AFTER
115FT OF CABLE (TOP)
EQUALIZER OUTPUT (BOTTOM)
EQUALIZER OUTPUT EYE DIAGRAM
AFTER 115FT OF 50Ω GORE 89 CABLE
(DIFFERENTIAL, 27-1 PRBS)
EQUALIZER OUTPUT EYE DIAGRAM
AFTER 100FT OF 75Ω RG179 CABLE
(SINGLE-ENDED, 27-1 PRBS)
EQUALIZER OUTPUT EYE DIAGRAM
AFTER 100FT OF BELDEN 9207 CABLE
(DIFFERENTIAL, 27-1 PRBS)
60ps/div (2.5Gbps)
EQUALIZER OUTPUT EYE DIAGRAM
AFTER 50FT OF MADISON #14887
SHIELDED TWISTED PAIR CABLE
(DIFFERENTIAL, 27-1 PRBS)
68ps/div (2.5Gbps)
CIM VOLTAGE vs. CABLE LENGTH
(RG179B 75Ω COAXIAL CABLE -
SINGLE-ENDED)
1.8
1.7 CIM-
1.6
1.5
1.4
1.3 CIM+
60ps/div (2.5Gbps)
60ps/div (2.5Gbps)
1.2
0 10 20 30 40 50 60 70 80 90 100
CABLE LENGTH (FEET)
EQUALIZER INPUT RETURN LOSS (S11)
50
40
30
20
10
0
-10
-20
-30
-40
-50
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
FREQUENCY (GHz)
EQUALIZER OUTPUT RETURN LOSS (S22)
50
40
30
20
10
0
-10
-20
-30
-40
-50
0 0.4 0.8 1.2 1.6 2.0 2.4 2.8 3.2 3.6 4.0
FREQUENCY (GHz)
_______________________________________________________________________________________ 5
5 Page 
3.2Gbps Adaptive Equalizer
and Cable Driver
Package Information (continued)
______________________________________________________________________________________ 11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet MAX3800UGJ.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| MAX3800UGJ | 3.2Gbps Adaptive Equalizer and Cable Driver | Maxim Integrated |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |