HMC497LP4 / 497LP4E
v02.0506
SiGe WIDEBAND DIRECT
MODULATOR RFIC, 100 - 4000 MHz
Typical Applications
Features
The HMC497LP4 / HMC497LP4E is suitable for
various modulation systems:
Very Low Noise Floor, -161 dBm/Hz
Very High Linearity, +22 dBm OIP3
High Output Power, +9 dBm Output P1dB
High Modulation Accuracy
• UMTS, GSM or CDMA Basestations
• Fixed Wireless or WLL
• ISM Transceivers, 900 & 2400 MHz
• GMSK, QPSK, QAM, SSB Modulators
DC – 700 MHz Baseband Input
Functional Diagram
General Description
9
The HMC497LP4 & HMC497LP4E are low noisehigh
linearity Direct Quadrature Modulator RFICs which
are ideal for digital modulation applications from
100 - 4000 MHz including; Cellular/3G, Broadband
Wireless Access & ISM circuits. Housed in a compact
4x4 mm (LP4) SMT QFN package, the RFIC requires
minimal external components & provides a low cost
alternative to more complicated double upconversion
architectures. The RF output port is single-ended
and matched to 50 Ohms with no external components.
The LO requires -6 to +6 dBm and can be driven in
either differential or single-ended mode while the
baseband inputs will support modulation inputs from
DC - 700 MHz typical. This device is optimized for
a supply voltage of +4.5V to +5.5V and consumes
170 mA @ +5.0V supply.
Electrical Specifications, See Test Conditions on following page herein.
Parameter
Frequency Range, RF
Output P1dB
Min.
Typ.
450 - 960
+8
Max.
Min.
Typ.
1700 - 2200
+8
Max.
Min.
Typ.
2200 - 2700
+7
Max. Min.
Typ. Max.
Units
MHz
3400 - 4000
+6
-150
+17
+3
dBm
Output Noise Floor
Output IP3
-161
-159
-157
dBm/Hz
dBm
+22
+22
+20
Output Power
+4
+6
+3
+5
+2
+5
0
dBm
Carrier Feedthrough (uncalibrated)
-32
-30
-26
-24
dBm
Sideband Suppression
(uncalibrated)
43
42
33
22
dBc
LO Port Return Loss
RF Port Return Loss
25
11
15
20
14
17
13
11
dB
dB
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
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