HMC701LP6CE Datasheet, PDF (2/40 Pages) Hittite Microwave Corporation – 8 GHz 16-Bit Fractional-N Synthesizer

v09.1112
HMC701LP6CE
8 GHz 16-BIT FRACTIONAL-N PLL
General Description
The HMC701LP6CE is a SiGe BiCMOS fractional-N PLL. The PLL 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.
The fractional-N PLL features an advanced delta-sigma modulator design that allows ultra-fine frequency step sizes.
The fractional-N PLL 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 fractional-N PLL 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.
In addition the fractional-N PLL has a number of auxiliary clock generation modes that can be accessed via the GPO.
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)
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
0.1
-10
32
Fraction Nominal Divide ratio varies
(-3 / +4) dynamically max
35
250
250
50 Ω Source. XSIN minimum
20MHz due to phase noise degra-
100
dation
AC Coupled
750
-6
1
Typ
Max
Units
9
GHz
8
GHz
MHz
-6
10
dBm
65,535
65,531
200
220
1000
0
3300
12
5
16,383
MHz
MHz
kHz
mVpp
dBm
pF
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