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LT5571 Datasheet(PDF) 6 Page - Linear Technology

Part # LT5571
Description  620MHz - 1100MHz High Linearity Direct Quadrature Modulator
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Manufacturer  LINER [Linear Technology]
Direct Link  http://www.linear.com
Logo LINER - Linear Technology

LT5571 Datasheet(HTML) 6 Page - Linear Technology

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LT5571
6
5571f
GAIN (dB)
–6
–6.5
25
20
15
10
5
0
5571 G25
–5.5 –5 –4.5 –4 –3.5 –3 –2.5 –2
–40
°C
25
°C
85
°C
VBB = 400mVP-P
NOISE FLOOR (dBm/Hz)
–159.9
25
20
15
10
5
0
5571 G26
–159.6
–159.3
–159.0
–158.7
–40
°C
25
°C
85
°C
LO LEAKAGE (dBm)
<–50
20
10
0
5571 G27
–36
–38
–34
–46
–48
–44 –42 –40
–40
°C
25
°C
85
°C
VBB = 400mVP-P
I AND Q BASEBAND VOLTAGE (VP-P,DIFF, EACH TONE)
0.1
–80
–70
–50
–30
10
RF
IM3
IM2
110
5571 G23
–10
–60
–40
0
–20 IM2 = POWER AT
fLO + 4.1MHz
IM3 = MAX POWER
AT fLO + 1.9MHz
OR fLO + 2.2MHz
fBBI = 2MHz, 2.1MHz, 0°
fBBQ = 2MHz, 2.1MHz, 90°
25
°C
85
°C
–40
°C
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
0
0
–10
–20
45
5571 G19
–50
–60
–40
–70
–80
–30
20
10
0
–30
–40
–20
–50
–60
–10
123
HD3
RF
HD2
HD2 = MAX POWER AT
fLO + 2 • fBB OR fLO – 2 • fBB
HD3 = MAX POWER AT
fLO + 3 • fBB OR fLO – 3 • fBB
25
°C
85
°C
–40
°C
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
0
–10
–20
45
5571 G20
–50
–60
–40
–70
–80
–30
10
0
–30
–40
–20
–50
–60
–10
123
HD3
RF
HD2
HD2 = MAX POWER AT
fLO + 2 • fBB OR fLO – 2 • fBB
HD3 = MAX POWER AT
fLO + 3 • fBB OR fLO – 3 • fBB
5V
5.5V
4.5V
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
0
–30
45
5571 G21
–40
–45
–35
123
5V, –40
°C
5V, 25
°C
5V, 85
°C
4.5V, 25
°C
5.5V, 25
°C
I AND Q BASEBAND VOLTAGE (VP-P,DIFF)
0
–48
4
5571 G22
–50
–52
–54
–56
–58
123
5
–46
5V, –40
°C
5V, 25
°C
5V, 85
°C
4.5V, 25
°C
5.5V, 25
°C
I AND Q BASEBAND VOLTAGE (VP-P,DIFF, EACH TONE)
0.1
–80
–70
–50
–30
10
RF
IM3
IM2
110
5571 G24
–10
–60
–40
0
–20 IM2 = POWER AT
fLO + 4.1MHz
IM3 = MAX POWER
AT fLO + 1.9MHz
OR fLO + 2.2MHz
fBBI = 2MHz, 2.1MHz, 0°
fBBQ = 2MHz, 2.1MHz, 90°
5V
5.5V
4.5V
TYPICAL PERFORMANCE CHARACTERISTICS
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage and
Temperature
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage and
Supply Voltage
LO Feedthrough to RF Output vs
CW Baseband Voltage
Image Rejection vs CW Baseband
Voltage
RF Two-Tone Power (Each Tone),
IM2 and IM3 vs Baseband Voltage
and Temperature
RF Two-Tone Power (Each Tone),
IM2 and IM3 vs Baseband Voltage
and Supply Voltage
Voltage Gain Distribution
Noise Floor Distribution (no RF)
LO Leakage Distribution
VCC = 5V, EN = High, TA = 25°C, fLO = 900MHz,
fRF = 902MHz, PLO = 0dBm. BBPI, BBMI, BBPQ, BBMQ CM input voltage = 0.5VDC, Baseband Input Frequency fBB = 2MHz, I & Q 90°
shifted, without image or LO feedthrough nulling. fRF = fBB + fLO (upper sideband selection). PRF(OUT) = –10dBm (–10dBm/tone for 2-
tone measurements), unless otherwise noted. (Note 3)


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