lt5506 Linear Technology Corporation, lt5506 Datasheet - Page 5

• Manufacturer Part Number: lt5506
• Description: 40mhz To 500mhz Quadrature Demodulator With Vga
• Manufacturer: Linear Technology Corporation

(Note 5), f
unless otherwise noted. (Note 3)
TYPICAL PERFOR A CE CHARACTERISTICS
–20
–25
–10
–15
–40
–45
–60
–65
–40
–45
–60
–30
–35
–50
–55
–30
–35
–50
–55
–5
0
–60
–60
LPF Frequency Response
vs Baseband Frequency and
Supply Voltage
0
Total Harmonic Distortion
vs IF Input Power at 3V Supply
and 800mV
Total Harmonic Distortion vs IF
Input Power and Supply Voltage
f
f
f
800mV
f
f
f
IF,1
IF,2
2xLO
IF,1
IF,2
2xLO
IF
IF INPUT POWER EACH TONE (dBm)
IF INPUT POWER EACH TONE (dBm)
= 280MHz
= 280.1MHz
= 280MHz
= 280.1MHz
= 570MHz
= 570MHz
BASEBAND FREQUENCY (MHz)
= 284MHz, P
5
P-P
–50
–50
DIFFERENTIAL OUT
–40 C
P-P
10
25 C
–40
–40
Differential Out
85 C
IF
15
3V
1.8V
5.25V
= –30dBm, I and Q outputs 800mV
–30
–30
1.8V
3V
20
W
5.25V
–20
–20
5505 G13
5506 G07
5506 G10
25
U
–40
–45
–50
–55
–60
–65
–70
–40
–45
–60
–30
–35
–50
–55
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–60
–45
–40
Total Harmonic Distortion
vs IF Input Power and IF
Frequency
Total Harmonic Distortion
vs IF Input Power at 500mV
Differential Out
IF Detector Output Voltage vs
IF Input CW Power at 3V Supply
f
f
f
f
800mV
3V SUPPLY
IF
IF,1
IF,2
2xLO
= 280MHz
IF INPUT POWER EACH TONE (dBm)
IF INPUT POWER EACH TONE (dBm)
= 280MHz
= 280.1MHz
= 570MHz
–40
–30
P-P
–50
IF INPUT CW POWER (dBm)
P-P
DIFFERENTIAL OUT
25 C
–35
–20
into 4k differential load, T
f
–40 C
IF
–40
–40 C
f
f
25 C
IF
IF
= 40MHz
= 280MHz
= 550MHz
–30
–10
85 C
–30
85 C
–25
0
P-P
–20
5506 G11
5506 G14
5506 G08
V
CC
–20
10
= 3V. f
A
2 LO
= 25 C, EN = V
–20
–25
–30
–35
–40
–45
–50
–55
–60
–10
–15
1.4
1.2
1.0
0.8
0.6
0.4
0.2
–5
0
–60
–40
Total Harmonic Distortion
vs IF Input Power at 1.8V Supply
and 800mV
= 570MHz, P
0
LPF Frequency Response
vs Baseband Frequency
and Temperature
IF Detector Output Voltage vs
IF Input CW Power at 1.8V Supply
f
f
f
f
IF,1
IF,2
2xLO
IF
= 280MHz
IF INPUT POWER EACH TONE (dBm)
= 280MHz
= 280.1MHz
= 570MHz
–30
BASEBAND FREQUENCY (MHz)
5
–50
IF INPUT CW POWER (dBm)
–40 C
CC
P-P
25 C
, STBY = V
–20
2 LO
10
–40 C
Differential Out
–40
= –5dBm
15
–10
LT5506
25 C
85 C
–40 C
85 C
25 C
–30
CC
,
20
85 C
0
V
CC
–20
5505 G12
5506 G09
= 3V
5506 G15
5506fa
5
25
10