Datasheet

10
LT1259/LT1260
4. Capacitors C1 and C6 are optional and only needed to
reduce overshoot when EN 1 or EN 2 are activated with
a long inductive ground wire.
5. The R, G and B amplifiers have slightly different
frequency responses due to different output trace
routing to R
F
(between pins 3 and 4). All amplifiers
have slightly less bandwidth in PCB #039 than when
measured alone as shown in the Typical AC Perfor-
mance table.
6. Part-to-part variation can change the peaking by
±0.25dB.
RGB Demo Board Gain vs Frequency
FREQUENCY (MHz)
1
–6
GAIN (dB)
–4
–2
0
2
10 100
LT1259/60 • TA04
4
V
S
= ±12V
R
L
= 150Ω
R
F
= R
G
= 1.6k
R
G
B
RGB Demo Board Gain vs Frequency
FREQUENCY (MHz)
1
–6
GAIN (dB)
–4
–2
0
2
10 100
LT1259/60 • TA05
4
V
S
= ±5V
R
L
= 150Ω
R
F
= R
G
= 1.1k
R, B
G
FREQUENCY (MHz)
1
–100
ALL HOSTILE CROSSTALK (dB)
–80
–60
–40
–20
10 100
LT1259/60 • TA06
0
V
S
= ±12V
R
L
= 100Ω
R
F
= R
G
= 1.6k
R
S
= 10Ω
G
B
R
RGB Demo Board All Hostile Crosstalk
P-DIP PC Board #039
LT1259/60 • TA07
R18
[phone]
LT1260 RGB AMPLIFIER
DEMONSTRATION BOARD
C8
R17
C7
C5
C4
R1
G1
B1
R2
G2
B2
B
G
R
R15
C3
R14
C2
R13
U1
GNDV–V+
EN1EN2
R1
R2
R3
R4
R5
R6
R7
R8
R9
R10
R11
R12
U2
C6
R16
C1
TYPICAL APPLICATIO S
U