HMC701LP6CE Datasheet, PDF (2/46 Pages) Hittite Microwave Corporation – 8 GHz 16-Bit Fractional-N Synthesizer

v03.0709
HMC701LP6CE
8 GHz 16-Bit Fractional-N Synthesizer
General Description
The HMC701LP6CE is a SiGe BiCMOS fractional-N frequency synthesizer. The synthesizer includes a 8GHz 16-bit
RF N-Divider, a 24-bit delta-sigma modulator, a very low noise digital phase frequency detector (PFD), and a precision
controlled charge pump. In addition the synthesizer supports an external step tuned VCO.
The fractional synthesizer features an advanced delta-sigma modulator design that allows ultra-fine frequency step
sizes. The synthesizer features the ability to alter both the phase-frequency detector (PFD) gain and the cycle slipping
characteristics of the PFD. This feature can reduce the time to arrive at the new frequency by 50% vs. conventional
PFDs. Ultra low in-close phase noise also allows wider loop bandwidths for faster frequency hopping.
The synthesizer contains a built-in linear sweeper function, which allows it to perform frequency chirps with a wide
variety of sweep times, polarities and dwells, all with an external or automatic sweep trigger.
A General Purpose Output (GPO) bus supports the use of multiple VCOs. In addition the synthesizer has a number of
auxiliary clock generation modes that can be accessed via the GPO.
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Electrical Specifications, T_A = +25°C
VCCHF = VCCPRS = RVDD = +3.3V
VPPCP = VCCOA = VDDPDR = VPPDRV = VDDPD = VDDPDV = +5V
DVDD = DVDDIO = DVDDQ = +3.3V
GNDDRV = GNDCP = GNDPD = GNDPDV = GNDPDR = 0V
Table 1. Electrical Specifications
Parameter
Prescaler Characteristics
Max RF Input Frequency (3.3V)
Max RF Input Frequency (2.7 - 3.3V)
Min RF Input Frequency
RF Input Power
16-bit N-Divider Range (Integer)
16-bit N-Divider Range (Fractional)
REF Input Characteristics
Max Ref Input Frequency (pin XREFP)
Max Ref Input Frequency (pin XSIN)
Max Ref Frequency with AutoCal
Min Ref Input Frequency
Ref Input Voltage Range (pin XREFP)
Ref Input Power Range (pin XSIN)
Ref Input Capacitance
14-Bit R-Divider Range
Conditions / Notes
Min
8
7
-10
32
Fraction Nominal Divide ratio varies
(-3 / +4) dynamically max
35
180
200
AC Coupled
750
50 Ω Source
-6
1
Typ
9
8
-6
200
220
60
100
1000
0
Max
Units
0.1
10
65,535
65,531
GHz
GHz
MHz
dBm
3300
12
5
16,383
MHz
MHz
MHz
kHz
mVpp
dBm
pF
For price, delivery, and to place orders, please contact Hittite Microwave Corporation:
20 Alpha Road, Chelmsford, MA 01824 Phone: [phone] Fax: [phone]
Order On-line at www.hittite.com
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