Rainbow Electronics MAX4885E - Manual

General Description
The MAX4885E integrates high-bandwidth analog
switches and level-translating buffers to implement a
complete 1:2 multiplexer for VGA signals. The device
provides switching for RGB, display data channel (DDC).
Horizontal and vertical synchronization (HSYNC/VSYNC)
inputs feature level-shifting buffers to support low-volt-
age CMOS or standard TTL-compatible graphics con-
trollers, meeting the VESA requirement of ±8mA. DDC,
consisting of SDA_ and SCL_, is a bidirectional active-
level translating switch that reduces capacitive load. The
MAX4885E features high ESD protection to ±15kV
Human Body Model (HBM) on all twelve externally rout-
ed terminals. See the
Pin Description section. All other
pins are protected to ±10kV Human Body Model (HBM).
The MAX4885E is specified over the extended -40°C to
+85°C temperature range, and is available in the
24-pin, 4mm x 4mm TQFN package.
Applications
Notebook Computers/Docking Stations
Digital Projectors
Computer Monitors
Servers/Storage
KVM Switches
Features
♦ ±15kV HBM ESD Protection on Externally Routed
Terminals
♦ 1GHz Bandwidth
♦ Low 5Ω (typ) On-Resistance (R, G, B Signals)
♦ Low 6pF (typ) On-Capacitance (R, G, B Signals)
♦ Low R, G, B Skew -50ps (typ)
♦ Near Zero Power Consumption (< 2µA)
♦ Ultra-Small, 24-Pin (4mm x 4mm) TQFN Package
MAX4885E
Ultra-Low Capacitance 1:2 VGA
Switch with ±15kV ESD
________________________________________________________________ Maxim Integrated Products 1
19-4269; Rev 0; 10/08
EVALUATION KIT
AVAILABLE
TQFN-EP
MAX4885E
19
20
21
22
1 2 3 4 5 6
18 17 16 15 14 13
23
24
12
11
10
9
8
7
SCL2
SDA2
SCL1
SDA1
SEL
SDA0 SCL0
R0 G0 B0 H0
R1 R2 G2 B1 B2
EN
V1
GND
H1
V L
V0
V CC
G1
TOP VIEW
+
*EXPOSED PAD. CONNECTED TO GROUND OR LEAVE UNCONNECTED.
*EP
Pin Configuration
Ordering Information
GRAPHICS
CONTROLLER
DOCKING
STATION
VGA
PORT
V L V CC
GND
+3.3V EN
R0, B0, G0
H0, V0
SDA0, SCL0
R2, G2, B2
SDA2, SCL2
R1, G1, B1
SDA1, SCL1
H1, V1
3
2
2
3
2
2
2
3
2
SEL
DOCKING
STATION
+5.0V +3.3V
0.1 µF 0.1 µF
MAX4885E
Typical Operating Circuit
PART TEMP RANGE PIN-PACKAGE
MAX4885EETG+ -40°C to +85°C 24 TQFN-EP*
* EP = Exposed pad.
+ Denotes lead-free package/RoHS-compliant package.
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim's website at www.maxim-ic.com.