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LT5503 数据表(PDF) 3 Page - Linear Technology

部件名 LT5503
功能描述  1.2GHz to 2.7GHz Direct IQ Modulator and Mixer
PDF  20 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LT5503 数据表(HTML) 3 Page - Linear Technology

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LT5503
3
ELECTRICAL CHARACTERISTICS
VCC1 = 3VDC, 2.4GHz matching, MODEN = High, GC1 = GC2 = Low, TA = 27ºC, MODRFIN = 2.45GHz at –16dBm, [I – IB] and [Q – QB] =
100kHz CW signal at 1VP-P differential, Q leads I by 90°, unless otherwise noted. (Test circuit shown in Figure 2.) (Note 3)
(I/Q Modulator)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RF Carrier Input (MODRFIN)
Frequency Range2
1.2 to 2.7
GHz
Input VSWR
ZO = 50Ω
1.3:1
Input Power
–20 to -10
dBm
Baseband Inputs (BI+, BI–, BQ+, BQ–)
Frequency Bandwidth (3dB)
120
MHz
Differential Input Voltage for 1dB Compressed Output
1
VP-P
DC Common-Mode Voltage
Internally Biased
1.4
VDC
Differential Input Resistance
18
k
Ω
Input Capacitance
0.8
pF
Gain Error
±0.2
dB
Phase Error
±1
DEG
Modulated RF Carrier Output (MODRFOUT)
Output Power, Max Gain
– 6
–3
dBm
Output VSWR
ZO = 50Ω
1.5:1
Image Suppression
– 26
–34
dBc
Carrier Suppression
– 24
–32
dBc
Output 1dB Compression
–3
dBm
Output 3rd Order Intercept
fI = 100kHz, fQ = 120kHz
2
dBm
Output 2rd Order Intercept
fI = 100kHz, fQ = 120kHz
16
dBm
Broadband Noise
20MHz Offset
–142
dBm/Hz
VGA Control Logic (GC2, GC1)
Switching Time
100
ns
Input Current
2
µA
Input Low Voltage
0.4
VDC
Input High Voltage
1.7
VDC
Output Power Attenuation
GC2 = Low, GC1 = High
4.5
dB
Output Power Attenuation
GC2 = High, GC1 = Low
9
dB
Output Power Attenuation
GC2 = High, GC1 = High
13.5
dB
Modulator Enable (MODEN) Low = Off, High = On
Turn ON/OFF Time
1
µs
Input Current
105
µA
Enable
VCC – 0.4
VDC
Disable
0.4
VDC
Modulator Power Supply Requirements
Supply Voltage
1.8
5.25
VDC
Modulator Supply Current
MODEN = High
29
38
mA
Modulator Shutdown Current
MODEN = Low
25
µA



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