OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

MAX3840ETJ+

P1-P3P4-P6P7-P8
MAX3840
+3.3V, 2.7Gbps Dual 2
✕
2 Crosspoint Switch
_______________________________________________________________________________________ 7
Applications Information
Interfacing PECL Inputs and
Outputs to the MAX3840
For information on interfacing with CML, refer to Maxim
Application Note HFAN-01.0, Introduction to LVDS,
PECL, and CML.
Layout Techniques
For best performance, use good high-frequency layout
techniques, filter V
CC
supplies, and keep ground con-
nections short. Use multiple vias where possible. Also,
use controlled-impedance transmission lines to inter-
face with the MAX3840 data inputs and outputs.
___________________ Interface Models
Figure 3 shows the interface model for the CML inputs,
and Figure 4 shows the model for CML outputs.
MAX3840
DIA0+
50Ω
DIA0-
V
CC
V
CC
V
CC
50Ω
Figure 3. CML Input Model
MAX3840
DOA0+
DOA0-
V
CC
50Ω50Ω
Figure 4. CML Output Model
Chip Information
TRANSISTOR COUNT: 1200
PROCESS: Bipolar (SiGe)
32
31
30
29
28
27
26
ENA1
DIA1-
DIA1+
ENA0
SELA0
DIA0-
DIA0+
25 SELA1
9
10
11
12
13
14
15
GND
V
CC
DOB0-
DOB0+
V
CC
DOB1-
DOB1+
16V
CC
17
18
19
20
21
22
23
V
CC
DOA1-
DOA1+
V
CC
DOA0-
DOA0+
V
CC
8
7
6
5
4
3
2
SELB1
NOTE: THE EXPOSED PAD MUST BE SOLDERED
TO THE SUPPLY GROUND.
DIB0-
DIB0+
SELB0
ENB0
DIB1-
DIB1+
MAX3840
QFN
1ENB1
24 GND
TOP VIEW
Pin Configurations
32
31
30
29
28
27
26
ENA1
DIA1-
DIA1+
ENA0
SELA0
DIA0-
DIA0+
25
SELA1
9
10
11
12
13
14
15
GND
V
CC
DOB0-
DOB0+
V
CC
DOB1-
DOB1+
16
V
CC
17181920212223
V
CC
DOA1-
DOA1+
V
CC
DOA0-
DOA0+
V
CC
8765432
SELB1
NOTE: THE EXPOSED PAD MUST BE SOLDERED
TO THE SUPPLY GROUND.
DIB0-
DIB0+
SELB0
ENB0
DIB1-
DIB1+
MAX3840
THIN QFN
1
ENB1
24
GND
TOP VIEW
+
MAX3840
+3.3V, 2.7Gbps Dual 2
✕
2 Crosspoint Switch
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
8 _____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2007 Maxim Integrated Products is a registered trademark of Maxim Integrated Products, Inc.
Package Information
For the latest package outline information, go to
www.maxim-ic.com/packages
.
PACKAGE TYPE DOCUMENT NO.
32 QFN 21-0091
32 TQFN 21-0140
Revision History
Rev 1; 11/01: Corrected specification.
Rev 2; 5/03: Added package code (page 1); updated package drawing (page 10).
Rev 3; 5/05: Added lead-free package (pages 1, 2, 8, 11, 12).
Rev 4; 12/05: Changed input voltage swing from 1.5V
P-P
(max) to 2.0V
P-P
(max).
Rev 5; 9/07: Added two AC amplitude specifications to increase test coverage for 2.5Gbps and 2.7GHz
clock inputs (page 3); removed package drawings and added package table (page 8).
P1-P3P4-P6P7-P8

MAX3840ETJ+

Mfr. #:
Buy MAX3840ETJ+
Manufacturer:
Maxim Integrated
Description:
Analog & Digital Crosspoint ICs 3.3V 2.7Gbps Dual 2X2 Crx Switch
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet