
LT6559
1
6559f
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
Low Cost 5V/±5V 300MHz
Triple Video Amplier
in 3mm × 3mm QFN
The LT6559 is a low cost, high speed, triple amplier that
has been optimized for excellent video performance on a
single 5V supply, yet ts in the small footprint of a 3mm ×
3mm QFN package. With a –3dB bandwidth of 300MHz, a
0.1dB bandwidth of 150MHz, and a slew rate of 800V/s,
the LT6559’s dynamic performance is an excellent match
for high speed RGB or YPBPR video applications.
For multiplexing applications such as KVM switches or
selectable video inputs, each channel has an independent
high speed enable/disable pin. Each amplier will turn on
in 30ns and off in 40ns. When enabled, each amplier
draws 3.9mA from a 5V supply. The LT6559 operates on
a single supply voltage ranging from 4V to 12V, and on
split supplies ranging from ±2V to ±6V.
The LT6559 comes in a compact 16-lead 3mm × 3mm QFN
package, and operates over a –40°C to 85°C temperature
range. The LT6559 is manufactured on Linear Technology’s
proprietary complementary bipolar process.
3-Input Video MUX Cable Driver
■
300MHz Bandwidth on Single 5V and ±5V
(AV = 1, 2 and –1)
■
0.1dB Gain Flatness: 150MHz (AV = 1, 2 and –1)
■
High Slew Rate: 800V/s
■
Wide Supply Range:
±2V to ±6V (Dual Supply)
4V to 12V (Single Supply)
■
80mA Output Current
■
Low Supply Current: 3.9mA/Amplier
■
Shutdown Mode
■
Fast Turn-On Time: 30ns
■
Fast Turn-Off Time: 40ns
■
Small 0.75mm Tall 16-Lead 3mm × 3mm QFN Package
■
RGB/YPBPR Cable Drivers
■
LCD Projectors
■
KVM Switches
■
A/V Receivers
■
MUX Ampliers
■
Composite Video Cable Drivers
■
ADC Drivers
TIME (10ns/DIV)
OUTPUT
200mV/DIV
6559 TA02
RL = 100
RF = RG = 301
f = 10MHz
Square Wave Response
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
5V
–5V
5V
–5V
–
+
1/3 LT6559
RG
182
RF
301
A
EN A
VIN A
–
+
1/3 LT6559
RG
182
RF
301
EN B
VIN B
B
C
CHANNEL SELECT
100
100
5V
–5V
–
+
1/3 LT6559
RG
182
EN C
VIN C
100
75
VOUT
75
CABLE
6559
TA01
RF
301