LT5571 데이터 시트보기 (PDF) - Linear Technology
부품명
상세내역
제조사
LT5571 Datasheet PDF : 16 Pages
| |||
LT5571
TYPICAL PERFORMANCE CHARACTERISTICS 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)
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage and
Temperature
0
20
–10
RF
10
–20
–30
HD3
–40
0
25°C –10
85°C
–40°C –20
–50
HD2
–30
–60
HD2 = MAX POWER AT
–40
fLO + 2 • fBB OR fLO – 2 • fBB
–70
HD3 = MAX POWER AT
–50
fLO + 3 • fBB OR fLO – 3 • fBB
–80
–60
0
1
2
3
4
5
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
5571 G19
Image Rejection vs CW Baseband
Voltage
–46
5V, –40°C
5V, 25°C
–48
5V, 85°C
4.5V, 25°C
5.5V, 25°C
–50
–52
–54
–56
–58
0
1
2
3
4
5
I AND Q BASEBAND VOLTAGE (VP-P,DIFF)
5571 G22
RF CW Output Power, HD2 and
HD3 vs CW Baseband Voltage and
Supply Voltage
–10
10
RF
–20
0
–30
HD3
–40
5V –10
5.5V
4.5V –20
–50
–30
HD2
–60
–40
HD2 = MAX POWER AT
–70
fLO + 2 • fBB OR fLO – 2 • fBB
HD3 = MAX POWER AT
–50
fLO + 3 • fBB OR fLO – 3 • fBB
–80
–60
0
1
2
3
4
5
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
5571 G20
RF Two-Tone Power (Each Tone),
IM2 and IM3 vs Baseband Voltage
and Temperature
10
25°C
0
85°C
–40°C
–10
–20 IM2 = POWER AT
–30
fLO + 4.1MHz
IM3 = MAX POWER
–40
AT fLO + 1.9MHz
OR fLO + 2.2MHz
–50
RF
IM3
IM2
–60
–70
–80
0.1
fBBI = 2MHz, 2.1MHz, 0°
fBBQ = 2MHz, 2.1MHz, 90°
1
10
I AND Q BASEBAND VOLTAGE (VP-P,DIFF, EACH TONE)
5571 G23
LO Feedthrough to RF Output vs
CW Baseband Voltage
–30
5V, –40°C
5V, 25°C
5V, 85°C
4.5V, 25°C
–35
5.5V, 25°C
–40
–45
0
1
2
3
4
5
I AND Q BASEBAND VOLTAGE (VP-P, DIFF)
5571 G21
RF Two-Tone Power (Each Tone),
IM2 and IM3 vs Baseband Voltage
and Supply Voltage
10
5V
0
5.5V
4.5V
–10
–20 IM2 = POWER AT
–30
fLO + 4.1MHz
IM3 = MAX POWER
–40
AT fLO + 1.9MHz
OR fLO + 2.2MHz
–50
RF
IM3
IM2
–60
–70
–80
0.1
fBBI = 2MHz, 2.1MHz, 0°
fBBQ = 2MHz, 2.1MHz, 90°
1
10
I AND Q BASEBAND VOLTAGE (VP-P,DIFF, EACH TONE)
5571 G24
Voltage Gain Distribution
25 –40°C
25°C
85°C
20
VBB = 400mVP-P
Noise Floor Distribution (no RF)
25 –40°C
25°C
85°C
20
LO Leakage Distribution
20 –40°C
25°C
85°C
VBB = 400mVP-P
15
15
10
10
10
5
5
0
–6.5 –6 –5.5 –5 –4.5 –4 –3.5 –3 –2.5 –2
GAIN (dB)
5571 G25
6
0
–159.9
–159.6 –159.3 –159.0
NOISE FLOOR (dBm/Hz)
–158.7
5571 G26
0
<–50 –48 –46 –44 –42 –40 –38 –36 –34
LO LEAKAGE (dBm)
5571 G27
5571f
Share Link: 