MAX4887 Datasheet, PDF (1/12 Pages) Maxim Integrated Products – Triple Video Switch

19-3972; Rev 0; 2/06
Triple Video Switch
General Description
The MAX4887 triple, high-frequency switch is intended
for notebooks and monitors to permit RGB signals to be
switched from one driver to one of two loads (1:2) or one
of two sources to be connected to one load (2:1). The
MAX4887 high-performance switch utilizes n-channel
architecture with internal high-drive pullup from a low-
noise charge pump, resulting in very low on-capacitance.
The MAX4887 features 5Ω (typ) on-resistance switches
with 10pF on-capacitances for routing RGB video sig-
nals. A logic input enables or disables the internal
charge pump for optimal frequency performances when
operating at lower input voltages resulting in standby
supply current less than 3µA. All RGB inputs/outputs are
ESD protected to ±8kV Human Body Model (HBM) and
feature a global input (EN) that places all inputs and out-
puts in a high-impedance state.
The MAX4887 is available in a small 3mm x 3mm, 16-
pin TQFN package for ease of assembly and
flowthrough layout, resulting in minimum space require-
ment and simplicity in board layout. The MAX4887
operates over the -40°C to +85°C temperature range.
Applications
Notebook Computers
Servers and Routers
Docking Stations
PC/HDTV Monitors
+3.3V
Features
♦ +3V/+5V Single-Supply Operation
♦ Low R_ON
5Ω (V+ = 5V)
♦ Low 10pF (typ) C_ON
♦ Global ENABLE Input to Turn On/Off Switches
♦ Break-Before-Make Switching
♦ ±8kV HBM ESD Protection per IEC1000-4-2 on I/Os
♦ Less than 1mA Supply Current (Charge Pump
Enabled)
♦ Less than 3µA Standby Mode
♦ Charge-Pump Noise Lower than 163µV_P-P
♦ Flowthrough Layout for Easy Board Layout
♦ Space-Saving Lead-Free (3mm x 3mm) 16-Pin
TQFN Package
Ordering Information
PART
TEMP PIN-
RANGE PACKAGE
TOP PKG
MARK CODE
MAX4887ETE
-40°C to
+85°C
16 TQFN-EP*
3mm x 3mm
AEF
T1633-4
*EP = Exposed paddle.
The MAX4887 is available only in a lead-free package. Specify
lead-free by adding the + symbol at the end of the part num-
ber when ordering.
Typical Operating Circuit
V_CC
VGA
D/A
CONVERTER
+5V
75Ω 75Ω 75Ω
V+
R0
R1
G0
G1
B0
MAX4887
B1
FROM CONTROL
SEL
R2
G2
SIGNALS
EN
QP GND
B2
0.1µF
VGA
CONNECTOR 1
DOCKING
STATION
VGA
CONNECTOR 2
________________________________________________________________ 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.