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PDF LTC5576 Data sheet ( Hoja de datos )
| Número de pieza | LTC5576 | |
| Descripción | 3GHz to 8GHz High Linearity Active Upconverting Mixer | |
| Fabricantes | Linear | |
| Logotipo |  |
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Features
nn 25dBm OIP3
nn –0.6dB Conversion Gain
nn 14.1dB Noise Figure at 5.8GHz
nn –154dBm/Hz Output Noise Floor
nn Low LO-RF Leakage
nn 0dBm LO Drive
nn Broadband 50Ω Matched Input
nn High Input P1dB: 10dBm at 5V
nn 5V or 3.3V Supply at 99mA
nn Single-Ended Output and LO Input
nn Enable Pin
nn –40°C to 105°C Operation (TC)
nn 16-Lead (4mm × 4mm) QFN Package
Applications
nn Wideband Transmitters
nn 4G and 5G Wireless Infrastructure
nn Fixed Wireless Access Equipment
nn Wireless Repeaters
LTC5576
3GHz to 8GHz
High Linearity Active
Upconverting Mixer
Description
The LTC®5576 is a high linearity active mixer optimized for
upconverting applications requiring wide input bandwidth,
low distortion and low LO leakage. The integrated output
transformer is optimized for 4GHz to 6GHz applications,
but is easily retuned for output frequencies as low as 3GHz,
or as high as 8GHz, with minor performance degradation.
The input is optimized for use with 1:1 transmission-line
baluns, allowing very wideband impedance matching.
The LO input port is single-ended and requires only 0dBm
of LO power to achieve excellent distortion and noise per-
formance while also reducing circuit requirements. The
LTC5576 offers low LO leakage, reducing the demands
of output filtering to meet LO suppression requirements.
The LTC5576 is optimized for 5V but can also be used
with a 3.3V supply with slightly reduced performance. The
enable function allows the part to be easily shut down for
further power savings.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
Typical Application
100pF
LO
50Ω
0.3pF
TEMPERATURE
MONITOR
TEMP
IN
50Ω
TC1-1-13M
1:1
100pF
100pF
IN+
IN–
LGND
EN
EN
LO
BIAS
VCC
OUT
IADJ
2.61k
10nF
1µF
0.2pF
OUT
50Ω
5V
5576 TA01a
For more information www.linear.com/LTC5576
OIP3 and Conversion Gain vs
Output Frequency (LSLO)
30 15
25
fIN = 456MHz
20
15
10
fIN = 900MHz
OIP3
GC
5
0
10 –5
5 TC = 25°C, OUTPUT TUNED FOR EACH BAND –10
3000 4000 5000 6000 7000 8000
OUTPUT FREQUENCY (MHz)
5576 TA01b
5576f
1
1 page  
LTC5576
Typical DC Performance Characteristics (Test Circuit shown in Figure 1)
5V Supply Current vs Supply
Voltage
110 R1 = 2.61k
105
100
95
90
85
80
75
70
4.5
TC = 105°C
85°C
25°C
–40°C
4.7 4.9 5.1
SUPPLY VOLTAGE (V)
5.3
5576 G01
3.3V Supply Current vs Supply
Voltage
110 R1 = 649Ω
105
100
TC = 105°C
85°C
25°C
–40°C
95
90
85
80
75
70
3 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
5576 G02
Typical AC Performance Characteristics 5V, 5800MHz Output Frequency:
oTCth=er2w5i°sCe.nVoCtCed=.5V, EN = High, PIN = –10dBm (–10dBm/Tone for 2-tone tests, ∆f = 2MHz), PLO = 0dBm, fIN = 900MHz, unless
Test circuit shown in Figure 1.
Conversion Gain Distribution
35
TC = 105°C
30
TC = 25°C
TC = –40°C
25
20
15
10
5
0
–1.5
–1 –0.5
GAIN (dB)
0 1.5
5576 G03
OIP3 Distribution
25
20
TC = 105°C
TC = 25°C
TC = –40°C
15
10
5
0
18 20 22 24 26 28 30
OIP3 (dBm)
5576 G04
Noise Figure Distribution
30
TC = 105°C
25
TC = 25°C
TC = –40°C
20
15
10
5
0
12.5
13.5 14.5
NF (dB)
15.5
5576 G05
For more information www.linear.com/LTC5576
5576f
5
5 Page 
LTC5576
Typical AC Performance Characteristics 3.3V, 8000MHz Output Frequency:
uTCnl=es2s5o°Cth.eVrCwCis=e3n.3oVte,dE.NTe=sHt cigirhc,uPitINsh=o–w1n0dinBmFig(u–r1e0d1B. m/Tone for 2-tone tests, ∆f = 2MHz), PLO = –4dBm, fIN = 900MHz, fLO = fOUT – fIN,
Conversion Gain, OIP3 and NF vs
Input Frequency
25
OIP3
30
20 25
15
10 NF
5
0 GC
20
TC = 105°C
85°C
25°C
–40°C
15
10
5
–5 0
0 400 800 1200 1600 2000 2400
INPUT FREQUENCY (MHz)
5576 G51
Conversion Gain and OIP3 vs
Output Frequency
25
OIP3
20
LO Leakage vs LO Frequency
0
TC = 25°C
–10
15
10
5
0 GC
TC = 105°C
85°C
25°C
–40°C
–20
LO-OUT
–30
–40
–50
LO-IN
–5
7400
7600 7800 8000 8200 8400 8600
OUTPUT FREQUENCY (MHz)
5576 G52
–60
5600
6000 6400 6800 7200 7600 8000
LO FREQUENCY (MHz)
5576 G53
Conversion Gain, OIP3 and NF vs
LO Input Power
25 OIP3
30
20 25
NF
15
20
10
5
0 GC
15
TC = 105°C
85°C
25°C
–40°C
10
5
–5
–10 –8
–6 –4 –2
LO POWER (dBm)
0
02
5576 G54
Output Noise Floor vs Input Power
–148
–150
fOUT = 8094MHz
fNOISE = 7997MHz
fLO = 7094MHz
–152
–154
PLO = –6dBm
–4dBm
–2dBm
0dBm
6dBm
–156
–158
–20
–15 –10 –5
0
INPUT POWER (dBm)
5
5576 G55
Conversion Gain, OIP3 and NF vs
Supply Voltage
25 30
OIP3
20 25
15 NF
20
10
5
0 GC
15
TC = 105°C
85°C
25°C
–40°C
10
5
–5 0
3 3.1 3.2 3.3 3.4 3.5 3.6
SUPPLY VOLTAGE (V)
5576 G56
2-Tone IM3 Level vs Output
Power Level
0
–10
TC = 105°C
85°C
25°C
–20 –40°C
–30
–40
–50
–60
–70
–80
–90
–15
–10 –5
0
OUTPUT POWER (dBm/TONE)
5
5576 G57
IN-OUT Isolation vs Input
Frequency
50
45
40
35
30
25
20
15
10
TC = 105°C
85°C
5
25°C
–40°C
0
0 400 800 1200 1600 2000 2400
INPUT FREQUENCY (MHz)
5576 G58
For more information www.linear.com/LTC5576
Conversion Gain, OIP3, NF and
IP1dB vs Case Temperature
25
OIP3
20
NF
15
10 IP1dB
5
0
–5
–45
GC
–15 15 45 75
CASE TEMPERATURE (°C)
105
5576 G59
5576f
11
11 Page | ||
| Páginas | Total 24 Páginas | |
| PDF Descargar | [ Datasheet LTC5576.PDF ] | |
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