LT5521EUF Linear Technology, LT5521EUF Datasheet - Page 8
![IC MIXER HI LIN 3.7GHZ 16-QFN](/photos/6/67/66790/161-16-qfn__sml.jpg)
LT5521EUF
Manufacturer Part Number
LT5521EUF
Description
IC MIXER HI LIN 3.7GHZ 16-QFN
Manufacturer
Linear Technology
Series
LT5521r
Datasheet
1.LT5521EUF.pdf
(16 pages)
Specifications of LT5521EUF
Rf Type
Cellular, PHS, UMTS, WCDMA
Frequency
10MHz ~ 3.7GHz
Number Of Mixers
1
Gain
-0.5dB
Noise Figure
12.5dB
Secondary Attributes
Up Converter
Current - Supply
98mA
Voltage - Supply
3.15 V ~ 5.25 V
Package / Case
16-WQFN Exposed Pad
Operating Temperature (min)
-40C
Operating Temperature (max)
85C
Operating Temperature Classification
Industrial
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
LT5521EUF
Manufacturer:
LT
Quantity:
10 000
Part Number:
LT5521EUF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
Company:
Part Number:
LT5521EUF#PBF
Manufacturer:
LT
Quantity:
20
Part Number:
LT5521EUF#PBF
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LT5521EUF#TRPBF
Manufacturer:
MAXIM
Quantity:
10
Part Number:
LT5521EUF#TRPBF
Manufacturer:
LINEAR/凌特
Quantity:
20 000
PI FU CTIO S
TYPICAL AC PERFOR A CE CHARACTERISTICS
LT5521
= –5dBm, V
frequency and V
GND (Pins 1, 4, 10, 11, 13, 14, 16): Ground. These pins
are internally connected to the Exposed Pad for improved
isolation. They should be connected to RF ground on the
printed circuit board, and are not intended to replace the
primary grounding through the backside of the package.
IN
requires a resistive DC path to ground. See Applications
Information for choosing the resistor value. External match-
ing is required.
EN (Pin 5): Enable Input Pin. The enable voltage should be
at least 2.9V to turn the chip on and less than 0.2V to turn
the chip off.
8
–44
+
–30
–32
–34
–36
–38
–40
–42
–32
–33
–34
–35
–36
–37
–38
–39
–40
U
, IN
1500
–25
LO-RF Leakage vs LO Power
LO-RF Leakage vs LO Frequency
–40 C
–
1550
–20
(Pins 2, 3): Differential Input Pins. Each pin
U
CC
85 C
25 C
–40 C
1600
= 3.3V, EN = 2.9V, T
–15
LO FREQUENCY (MHz)
CC
85 C
LO POWER (dBm)
1650
= 3.3V.
–10
25 C
1700
U
–5
1750
0
1800
1850
A
5
5521 G30
5521 G28
= 25 C, unless otherwise noted. Test circuit shown in Figure 1 is tuned for 1.95GHz output
W U
1900
10
–2
4
8
6
0
2
3.10
Conversion Gain, IIP3 and Noise
Figure vs Supply Voltage
22
20
18
16
14
12
10
3.15
–20
Noise Figure vs LO Power
G
85 C
25 C
–40 C
C
3.20
–15
3.25
V
LO POWER (dBm)
CC
3.30
–10
(V)
3.35
V
for these three pins is 40mA.
OUT
have a DC connection to the supply voltage (see Applica-
tions Information). These pins draw 20mA each. External
matching is required.
LO (Pin 15): Local Oscillator Input. This input is internally
DC biased to 0.96V. Input signal must be AC coupled.
Exposed Pad (Pin 17): Circuit Ground Return for the
Entire IC. For best performance, this pin must be soldered
to the printed circuit board.
CC
–5
3.40
–40 C
(Pins 6, 7, 8): Power Supply Pins. Total current draw
IIP3
+
NF
85 C
25 C
, OUT
5521 G31
3.45
0
3.50
–
5521 G32
20
16
4
24
12
8
(Pins 12, 9): RF Output Pins. These pins must
5
f
LO
= 1.7GHz, f
10
–2
–4
8
6
4
2
0
–25
Conversion Gain and IIP3
vs LO Power
–20
–23
–26
–29
–32
–35
–38
–41
–44
–47
–50
3.0
–20
LO Leakage vs Supply Voltage
85 C
25 C
–40 C
IF
–15
3.1
= 250MHz, f
LO POWER (dBm)
–10
3.2
G
C
V
–5
CC
3.3
IIP3
RF
(V)
= 1.95GHz, P
0
3.4
–40 C
85 C
5
5521 G29
3.5
25 C
10
5521 G33
27
25
21
19
17
13
23
15
5521f
LO
3.6