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SiGe High-Linearity, 2000MHz to 3000MHz
Downconversion Mixer with LO Buffer
+5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS (continued)
(Typical Application Circuit, V CC = +4.75V to +5.25V, RF and LO ports are driven from 50 Ω sources, P LO = -3dBm to +3dBm,
P RF = -5dBm, f RF = 2300MHz to 2800MHz, f LO = 2000MHz to 2500MHz, f IF = 300MHz, f RF > f LO , T C = -40°C to +85°C. Typical val-
ues are at V CC = +5.0V, P RF = -5dBm, P LO = 0dBm, f RF = 2500MHz, f LO = 2200MHz, f IF = 300MHz, T C = +25°C, all parameters are
guaranteed by design and characterization, unless otherwise noted.) (Note 6)
PARAMETER
IF Output Impedance
SYMBOL
Z IF
CONDITIONS
Nominal differential impedance at the IC’s
IF outputs
MIN
TYP
200
MAX
UNITS
Ω
RF terminated into 50 Ω ,
LO driven by 50 Ω
source, IF transformed
to 50 Ω using external
components shown in
f IF = 450MHz,
L1 = L2 = 120nH
25
IF Output Return Loss
the Typical Application
Circuit . See the IF Port
Return Loss vs. IF
f IF = 350MHz,
L1 = L2 = 270nH
25
dB
Frequency graph in the
Typical Operating
Characteristics for
performance vs.
inductor values
f IF = 300MHz,
L1 = L2 = 470nH
25
Minimum RF-to-IF Isolation
Maximum LO Leakage at RF Port
Maximum 2LO Leakage at RF Port
Maximum LO Leakage at IF Port
f RF = 2300MHz to 2700MHz, P LO = +3dBm
(Note 5)
f LO = 1900MHz to 2500MHz, P LO = +3dBm
f LO = 1900MHz to 2500MHz, P LO = +3dBm
f LO = 1900MHz to 2500MHz, P LO = +3dBm
(Note 5)
34
-22.7
-21
-27.5
dB
dBm
dBm
dBm
+3.3V SUPPLY AC ELECTRICAL CHARACTERISTICS
(Typical Application Circuit, RF and LO ports are driven from 50 Ω sources, Typical values are at V CC = +3.3V, P RF = -5dBm,
P LO = 0dBm, f RF = 2500MHz, f LO = 2200MHz, f IF = 300MHz, T C = +25°C, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Conversion Power Gain
G C
8.6
dB
Conversion Power Gain Variation
vs. Frequency
Gain Variation Over Temperature
Input 1dB Compression Point
Third-Order Input Intercept Point
Third-Order Input Intercept
Variation Over Temperature
Noise Figure
Noise Figure Temperature
Coefficient
2RF-2LO Spur Rejection
Δ G C
TC G
IP 1dB
IIP3
NF SSB
TC NF
2x2
f RF = 2300MHz to 2800MHz for any
100MHz band
T C = -40°C to +85°C
(Note 8)
f RF1 = 2500MHz, f RF2 = 2501MHz, f LO =
2200MHz, P RF1 = P RF2 = -5dBm
f RF1 = 2500MHz, f RF2 = 2501MHz, f LO =
2200MHz, P RF1 = P RF2 = -5dBm, T C = +25°C
Single sideband, no blockers present (Note 9)
Single sideband, no blockers present,
T C = -40°C to +85°C (Note 9)
P RF = -10dBm
P RF = -5dBm
0.1
-0.012
7.5
19.8
±0.5
9.6
0.017
65.9
60.9
dB
dB/°C
dBm
dBm
dB
dB
dB/°C
dBc
4
_______________________________________________________________________________________
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功能描述:上下转换器 High-Gain 1.8GHz to 2.9GHz Downconv RoHS:否 制造商:Texas Instruments 产品:Down Converters 射频:52 MHz to 78 MHz 中频:300 MHz LO频率: 功率增益: P1dB: 工作电源电压:1.8 V, 3.3 V 工作电源电流:120 mA 最大功率耗散:1 W 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:PQFP-128
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