English
Language : 

HMC685LP4_10 Datasheet, PDF (1/10 Pages) Hittite Microwave Corporation – BiCMOS MMIC MIXER W/ INTEGRATED LO AMPLIFIER, 1.7 - 2.2 GHz
HMC685LP4 / 685LP4E
v04.0110
BiCMOS MMIC MIXER W/ INTEGRATED
LO AMPLIFIER, 1.7 - 2.2 GHz
10
Typical Applications
The HMC685LP4(E) is Ideal for:
• Cellular/3G & LTE/WiMAX/4G
• Basestations & Repeaters
• GSM, CDMA & OFDM
• Transmitters and Receivers
Functional Diagram
Features
High Input IP3: +35 dBm
8 dB Conversion Loss @ 0 dBm LO
Optimized for Low Side LO Input
Upconversion & Downconversion Applications
Adjustable Supply Current
24 Lead 4x4mm SMT Package: 16mm2
General Description
The HMC685LP4(E) is a high dynamic range passive
MMIC mixer with integrated LO amplifier in a 4x4 SMT
QFN package covering 1.7 to 2.2 GHz. Excellent input
IP3 performance of +35 dBm for down conversion is
provided for 3G & 4G GSM/CDMA applications at an
LO drive of 0 dBm. With an input 1 dB compression
of +27 dBm, the RF port will accept a wide range of
input signal levels. Conversion loss is 8 dB typical.
The DC to 500 MHz IF frequency response will sat-
isfy GSM/CDMA transmit or receive frequency plans.
The HMC685LP4(E) is pin for pin compatible with the
HMC684LP4(E) which is a 700 - 1000 MHz mixer with
LO amplifier.
10 - 1
Electrical Specifications,
TA = +25° C, IF = 200 MHz, LO = 0 dBm, Vcc = Vcc1, 2, 3 = +5V, G_Bias = +2.5V*
Nominal Supply
Icc = 120 mA
Icc = 90 mA Icc = 70 mA
Parameter
Min.
Typ.
Max.
Typ.
Typ.
Frequency Range, RF
1.7 - 2.2
Frequency Range, LO
1.5 - 2.2
Frequency Range, IF
DC - 500
Conversion Loss
8
10
8
8
Noise Figure (SSB)
8
8
8
LO to RF Isolation
22
30
33
34
LO to IF Isolation
24
30
31
32
RF to IF Isolation
30
42
42
43
IP3 (Input)
35
34
32
1 dB Compression (Input)
25
24
23
LO Drive Input Level (Typical)
-6 to +3
-6 to +3
-6 to +3
Supply Current Icc total
120
140
90
70
* Unless otherwise noted all measurements performed as downconverter with low side LO & IF = 200 MHz.
Units
GHz
GHz
MHz
dB
dB
dB
dB
dB
dBm
dBm
dBm
mA
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or apps@hittite.com