Rainbow Electronics MAX19997A User Manual
Page 4
MAX19997A
Dual, SiGe High-Linearity, 1800MHz to 2900MHz
Downconversion Mixer with LO Buffer
4
_______________________________________________________________________________________
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Single sideband, no blockers present
f
R F
= 2400M H z to 2900M H z ( N ote 6, 8, 10)
10.4
12.5
Noise Figure
NF
SSB
Single sideband, no blockers present,
f
R F
= 2400M H z to 2900M H z , T
C
= +25°C
(Note 6, 8, 10)
10.4
11.4
dB
Noise Figure Temperature
Coefficient
TC
NF
Single sideband, no blockers present,
T
C
= -40°C to +85°C
0.018
dB/°C
Noise Figure Under Blocking
Conditions
NF
B
f
BLOCKER
= 2412MHz, P
BLOCKER
= 8dBm,
f
RF
= 2600MHz, f
LO
= 2950MHz, P
LO
=
0dBm, V
C C
= + 5.0V , T
C
= + 25°C ( Notes 8, 12)
22.5
25
dB
f
RF
= 2600MHz, f
LO
= 2950MHz,
P
RF
= -10dBm, f
SPUR
= f
LO
- 175MHz
(Note 8)
62
69
2LO-2RF Spur
2 x 2
f
RF
= 2600MHz, f
LO
= 2950MHz,
P
RF
= -5dBm, f
SPUR
= f
LO
- 175MHz
(Notes 8, 9)
57
64
dBc
f
RF
= 2600MHz, f
LO
= 2950MHz,
P
RF
= -10dBm, f
SPUR
= f
LO
- 116.67MHz,
T
C
= +25°C (Note 8)
73
84
3LO-3RF Spur
3 x 3
f
RF
= 2600MHz, f
LO
= 2950MHz,
P
RF
= -5dBm, f
SPUR
= f
LO
- 116.67MHz,
T
C
= +25°C (Notes 8, 9)
63
74
dBc
RF Input Return Loss
LO on and IF terminated into a matched
impedance
14
dB
LO Input Return Loss
RF and IF terminated into a matched
impedance
13
dB
IF Output Impedance
Z
IF
Nominal differential impedance at the IC’s
IF outputs
200
Ω
IF Output Return Loss
RF terminated into 50
Ω, LO driven by 50Ω
source, IF transformed to 50
Ω using
external components shown in the Typical
Application Circuit
21
dB
+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS
(continued)
(
Typical Application Circuit optimized for the standard RF band (see Table 1), 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 2900MHz, f
LO
= 2650MHz to 3250MHz, f
IF
= 350MHz,
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, f
RF
= 2600MHz, f
LO
= 2950MHz,
f
IF
= 350MHz, T
C
= +25°C, unless otherwise noted.) (Note 7)