lt5546 Linear Technology Corporation, lt5546 Datasheet - Page 2

• Manufacturer Part Number: lt5546
• Description: 40mhz To 500mhz Vga And I/q Demodulator With 17mhz Baseband Bandwidth
• Manufacturer: Linear Technology Corporation

ABSOLUTE AXI U RATI GS
LT5546
(Note 1)
Supply Voltage ....................................................... 5.5V
Differential Voltage Between 2xLO
IF
I
Operating Ambient Temperature
(Note 2) ...................................................–40°C to 85°C
Storage Temperature Range ..................–65°C to 125°C
Voltage on Any Pin
Not to Exceed ........................ –500mV to V
P
SYMBOL
IF Input
f
NF
G
G
IIP3
IIP2
Demodulator I/Q Output
r
2
ELECTRICAL CHARACTERISTICS
IF
OUT
o
IF
L
H
+
, IF
= –30dBm, I and Q outputs 800mV
+
, I
–
OUT
............................................. –500mV to 500mV
–
, Q
OUT
PARAMETER
Frequency Range
Nominal Input Level
Input Impedance
Noise Figure at Max Gain
Min Gain (Note 4)
Max Gain (Note 4)
Input IP3, Min Gain
Input IP3, Max Gain
Input IP2, Min Gain
Input IP2, Max Gain
Nominal Voltage Swing
Clipping Level
DC Common Mode Voltage
I/Q Amplitude Imbalance
I/Q Phase Imbalance
DC Offset
Output Driving Capability
Small-Signal Output Impedance
STBY to Turn-On Delay
I/Q Output 1dB Compression
I/Q Output IM3
W
+
, Q
OUT
–
.................. V
W W
P-P
+
and 2xLO
into 4kΩ differential load, T
CC
– 1.8V to V
CC
U
–
CONDITIONS
R
IF
IF
V
V
V
P
P
V
V
(Note 6)
(Note 6)
(Note 8)
(Note 8)
(Notes 6, 8)
Single Ended, C
(Note 6)
P
P
.......... 4V
SOURCE
CTRL
CTRL
CTRL
IF
IF
CTRL
CTRL
IF, 1
IF, 2
+
+
+ 500mV
, IF
, IF
= –22.5dBm (Note 7)
= –75dBm (Note 7)
= –25.5dBm, 280MHz
= –25.5dBm, 280.1MHz (Note 7)
–
–
= 1.7V
= 0.2V
= 1.7V
= 0.2V (Note 9)
= 1.7V (Note 9)
V
to GND, EN = V
to GND, EN = GND
CC
= 200Ω Differential
CC
= 3V, f
LOAD
A
2xLO
PACKAGE/ORDER I FOR ATIO
Consult LTC Marketing for parts specified with wider operating temperature ranges.
= 25°C, EN = V
≤ 10pF
16-LEAD (4mm × 4mm) PLASTIC QFN
GND
GND
CC
IF
IF
= 570MHz, P
+
–
EXPOSED PAD IS GND (PIN 17)
(MUST BE SOLDERED TO PCB)
T
1
2
3
4
JMAX
16 15 14 13
5
UF PACKAGE
= 125°C, θ
TOP VIEW
6
17
CC
7
2xLO
, STBY = V
JA
8
= 37°C/W
= –5dBm (Note 5), f
12
11
10
9
STBY
2xLO
2xLO
EN
CC
+
–
, unless otherwise noted. (Note 3)
MIN
49
2
U
100Ω//1.2pF
UF PART MARKING
–76 to –19
V
40 to 500
CC
1.47
0.14
TYP
–49
– 49
IF
1pF
–25
180
–10
ORDER PART
7.8
1.6
0.8
0.6
1.5
0.3
–1
21
56
36
– 1.19
LT5546EUF
= 284MHz,
NUMBER
5546
W
MAX
0.6
6
3
UNITS
5546fa
U
dBm
dBm
dBm
dBm
dBm
dBm
MHz
V
V
Deg
dBc
mV
P-P
P-P
kΩ
dB
dB
dB
dB
µs
Ω
V