LTC6409 Linear Technology, LTC6409 Datasheet - Page 21

• Manufacturer Part Number: LTC6409
• Description: 10GHz GBW - 1.1nV/Hz Differential Amplifier/ADC Driver
• Manufacturer: Linear Technology

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Typical applicaTions
INPUT
49.9
Single-Ended to Differential Conversion Using LTC6409 and 50MHz Lowpass Filter (Only One Channel Shown)
66.5
66.5
150
150
200mV
1900MHz
1920MHz
–10dBm
0dBm
RF IN
P-P
LO
–IN
+IN
0.1µF
SHDN
LT5575
+
–
V
GND
3.3V
LTC6409
+
Q
I
–OUT
+OUT
474
474
0.8pF
0.8pF
5pF
5pF
65
65
DC-Coupled Level Shifting of an I/Q Demodulator Output
5V
5V
5V
V
OCM
GAIN: 1.1dB
37.4
5pF
5pF
37.4
65
65
5V
5V
227mV
–8.9dBm
Q CHANNEL
68pF
DIFF OUTPUT Z
130
IDENTICAL
180nH
68pF
180nH
10pF
C1
| |
P-P
2.5pF
DC LEVEL
3.9V
150pF
150pF
180nH
180nH
C2
10pF
75
75
R1
R2
33pF
75
75
DC LEVEL
C3
12pF
3.4V
75
75
R3
R4
G2
G1
N1
N2
B2
B1
B3
C2
C1
F2
F1
F3
GAIN: 12.3dB
V
1.25V
OCM
+
–
6409 TA03
620
620
0.9pF
5V
LTC6409
0.9pF
A
A
V
A
A
A
A
V
A
A
A
A
C5
R5
R6
C4
IN1
IN1
CM12
IN2
IN2
IN3
IN3
CM34
IN4
IN4
IN8
IN8
–
+
+
–
+
–
+
–
+
–
+
–
C5
936mV
1.8V
LTM9011-14
3.4dBm
6409 TA02
DC LEVEL
1.25V
P-P
B6
LTC6409
–OUT
+OUT
1.8V
P5 P6
DCO
DCO
O1A
O1A
FR
FR
+
–
+
–
+
–
21
E8
E7
G7
G8
H8
H7
6409fa