Rainbow Electronics MAX19995 User Manual
Page 3
MAX19995
Dual, SiGe, High-Linearity, 1700MHz to 2200MHz
Downconversion Mixer with LO Buffer/Switch
_______________________________________________________________________________________
3
RECOMMENDED AC OPERATING CONDITIONS
+5.0V SUPPLY AC ELECTRICAL CHARACTERISTICS
(
Typical Application Circuit optimized for the DCS/PCS band, R1 = R4 = 806
Ω, R2 = R5 = 2.32kΩ, V
CC
= +4.75V to +5.25V, RF and
LO ports are driven from 50
Ω sources, P
LO
= -3dBm to +3dBm, PRF = -5dBm, f
RF
= 1700MHz to 2000MHz, f
LO
= 1510MHz to
1810MHz, f
IF
= 190MHz, f
RF
> f
LO
, T
C
= -40°C to +85°C. Typical values are at V
CC
= +5.0V, P
RF
= -5dBm, P
LO
= 0dBm,
fRF = 1800MHz, f
LO
= 1610MHz, f
IF
= 190MHz, T
C
= +25°C, unless otherwise noted.) (Note 6)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
RF Frequency
f
RF
(Note
5)
1700 2200
MHz
LO Frequency
f
LO
(Note
5)
1400 2000
MHz
Using Mini-Circuits TC4-1W-17 4:1
transformer as defined in the typical
application circuit, IF matching components
affect the IF frequency range (Note 5)
100 500
MHz
IF Frequency
f
IF
Using alternative Mini-Circuits TC4-1W-7A
4:1 transformer, IF matching components
affect the IF frequency range (Note 5)
50 250
MHz
LO Drive Level
P
LO
-3
+3 dBm
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
7
9
11
T
C
= +25°C
7.8
9
10.2
Conversion Gain
G
C
Typical Application Circuit optimized for
UMTS band (R1 = R4 = 681
Ω, R2 = R5 =
1.5k
Ω), f
LO
= 1760MHz, f
RF
= 1950MHz
8.9
dB
Conversion Gain Flatness
Flatness over any one of three frequency
bands:
f
RF
= 1710MHz to 1785MHz
f
RF
= 1850MHz to 1910MHz
f
RF
= 1920MHz to 1980MHz
±0.1
dB
Gain Variation Over Temperature
TC
CG
f
RF
= 1700MHz to 2000MHz,
f
LO
= 1510MHz to 1810MHz ,
f
IF
= 190MHz, T
C
= -40°C to +85°C
-0.009
dB/°C
f
RF
= 1700MHz for min value
9.5
12.5
Input Compression Point
(Note 7)
IP
1dB
Typical Application Circuit optimized for
UMTS band (R1 = R4 = 681
Ω, R2 = R5 =
1.5k
Ω), f
LO
= 1760MHz, f
IF
= 190MHz,
f
RF
= 1950MHz
13.3
dBm