Hittite HMC168C8 Datasheet
MICROWAVE CORPORATION
GaAs MMIC SMT DOUBLE-BALANCED MIXER 4.5 - 8 GHz
FEBRUARY 2001
HMC168C8
4
MIXERS
SMT
Features
CONVERSION LOSS: 8.2 dB
LO TO RF AND IF ISOLATION: > 33 dB
SURFACE MOUNT
SMALL SIZE, NO DC BIAS REQUIRED
General Description
The HMC168C8 is a miniature double-balanced mixer in a non- hermetic ceramic
surface mount package that can be used as
an upconverter, downconverter or biphase
modulator. The device is a passive diode/
balun type mixer with high dynamic range.
Noise figure is essentially equal to the conversion loss. The mixer can handle larger
signal levels than most active mixers due to
the high third order intercept. MMIC implementation provides exceptional balance in
the circuit resulting in high LO/RF and LO/IF
isolations and unit-to-unit consistency. This
mixer has applications in point-to-point microwave radios and 5.8GHz ISM band circuits where small size and surface mount
compatibility are important.
Guaranteed Perf ormance With LO Drive of +10 dBm, -55 to +85 deg C
Parameter Min. Typ. Max. Units
Frequency Range, RF & LO (Note 1) 4.5 - 8.0 GHz
Frequency Range, IF DC - 2 GHz
Conversion Loss 8.2 10 dB
Noise Fi gure (SSB) 8.2 10 dB
LO to RF Isolation 29 35 dB
LO to IF Isolation 30 34 dB
IP3 (Input) 12 16 dBm
IP2 (Input) 55 62 dBm
1 dB Gain Compression (Input) 7 10 dBm
Local Oscillator Drive Level 7 10 20 dBm
Note 1:Conversion Loss and Isolation bandwidth improves to 4.0-8.5 GHz with a higher LO drive of +13dBm.
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
4 - 42
MICROWAVE CORPORATION
GaAs MMIC SMT DOUBLE-BALANCED MIXER 4.5 - 8 GHz
HMC168C8
FEBRUARY 2001
Conversion Loss
0
-5
-10
-15
CONVERSION LOSS (dB)
-20
0 1 2 3 45 67 89 1011
RF FREQUENCY (GHz)
Conversion Loss vs. Lo Drive
-5
-7.5
-10
-12.5
CONVERSION LOSS (dB)
-15
01234567891011
RF FREQUENCY (GHz)
+15dBm
+13dBm
+10dBm
+9dBm
+8dBm
Isolation
0
-10
-20
-30
-40
ISOLATION (dB)
-50
-60
012 34567891011
RF/IF
LO /IF
LO/RF
FREQUENCY (GHz)
Distortion and 1dB Compression
versus LO Drive Level
Distortion
RF(f1) = 6.01 GHz
LO
Drive
(dBm)
+7
+10
+13
+15
RF(f2) = 6.00 GHz
LO = 6.5 GHz
RF Level = 0 dBm
IP3 (dBm)
14
16
18
19
IP2 (dBm)
59
62
65
65
1 dBm
Compression
(dBm)
8.5
10
11
11
LO/RF
LO /IF
4
MIXERS
SMT
Return Loss
0
-10
LO
S - Parameters for the RF, LO, IF
Ports are Available
-20
-30
RETURN LOSS (dB)
-40
12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373 Web Site: www.hittite.com
IF
01234567891011
FREQUENCY (GHz)
RF
On-Line at www.hittite.com
4 - 43
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