HMC698LP5
/
698LP5E
v03.0709
7 GHz INTEGER N SYNTHESIZER
(N = 12 - 259)
Features
Ultra Low ssB Phase Noise Floor:
-153 dBc/hz @ 10 khz offset @ 100 Mhz
Reference Frequency.
Programmable Divider (N= 12 - 259) Operating
up to 7 Ghz
Open Collector Output Buffer Amplifiers for
Interfacing w/ Op-Amp Based Loop Filter
Reversible Polarity PFD w/ Lock Detect Output
32 Lead 5x5mm sMT Package: 25mm
2
Typical Applications
The hMC698LP5(E) is ideal for:
• satellite Communication systems
• Point-to-Point Radios
• Military Applications
• sonet Clock Generation
6
PLL - INTEGER-N syNThEsIzER - sMT
Functional Diagram
General Description
The hMC698LP5(E) is a frequency synthesizer with
a wideband reversible polarity digital PFD and lock
detect output. The divider operates unconditionally
from 80 - 7000 Mhz with a continuous integer
division ratio of 12 to 259. The hMC698LP5(E) high
frequency operation along with ultra low phase noise
floor make possible synthesizers with wide loop
bandwidth and low N resulting in fast settling and
very low phase noise. When used in conjunction with
a differential loop filter, the hMC698LP5(E) can be
used to phase lock a VCO to a reference oscillator.
Electrical Specifications,
T
A
= +25° C, Vcc = Vcc1 = Vcc2 = Vcc3 = Vcc_pd = 5V
Parameter
Maximum Ref. Input Frequency
Minimum Ref. Input Frequency
Reference Input Power Range
Maximum VCO Input Frequency
Minimum VCO Input Frequency
VCO Input Power Range
PFD Output Voltage
PFD Gain
ssB Phase Noise
Total supply Current
[1] Maximum frequencies may be limited by available counter division ratio.
[2] square wave input achieves best phase noise at lower ref. frequency (see sine & square wave comparison plots)
Gain = Vpp / 2π Rad.
@ 10 khz Offset @ 100 Mhz square Wave Ref. Input
Pin= 0 dBm
100 Mhz Input Frequency
-10
2000
0.32
-153
310
Conditions
sine or square Wave Input
[1]
square Wave Input
[2]
100 Mhz Frequency
-5
7000
80
+5
Min.
1300
10
+5
Typ.
Max.
Units
Mhz
Mhz
dBm
Mhz
Mhz
dBm
mV, Pk - Pk
V/Rad.
dBc/hz
mA
6-1
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
HITTITE [ HITTITE MICROWAVE CORPORATION ]
