HMC704LP4E Datasheet, PDF (3/44 Pages) Hittite Microwave Corporation – 8 GHz fractionaL-N PLL

v04.0215
HMC704LP4E
8 GHZ FRACTIONAL-N PLL
Table 1. Electrical Specifications (Continued)
Parameter
LOGIC INPUTS
Switching Threshold (Vsw)
LOGIC OUTPUTS
VOH Output High Voltage
VOL Output Low Voltage
Digital Output Driver Delay
SCK to Digital Output Delay
RF divider 8GHz Integer Mode
RF divider 4GHz Integer Mode
RF divider 8GHz Fractional Mode
RF divider 4GHz Fractional Mode
Conditions
Min.
VIH/VIL within 50mV of Vsw
38
0.4
19 bit , Even values Only
32
19 bit , All values
16
19 bit , Even values Only
40
19 bit , All values
20
Typ.
Max.
Units
47
54
% DVDD
VDD-0.4
V
V
0.5ns+0.2ns/pF
ns
8.2ns+0.2ns/pF
ns
1,048,574
524,287
1,048,566
524,283
[1] Frequency is guaranteed across process, voltage and temperature from -40⁰C to 85⁰C.
[2] With high charge-pump current, +12dBm 100MHz sine reference
[3] Fractional FOM degrades about 3dB/octave for prescaler input frequencies below 2GHz
[4] Using 50MHz reference with VCO tuned to within one loop bandwidth of an integer multiple of the PD frequency. Larger
offsets produce better results. See the “Spurious Performance” section for more information.
[5] Measured with the HMC704LP4E evaluation board. Board design and isolation will affect performance.
[6] Internal divide-by-2 must be enabled for frequencies >4GHz
[7] At low RF Frequency, Rise and fall times should be less than 1ns to maintain performance
[8] Slew rate of greater or equal to 0.5ns/V
[9] Current consumption depends upon operating mode and frequency of the VCO
[10] Reference input disconnected
[11] Min/Max versus temperature and supply, under typical reference & frequencies & RF power levels
[12] Slew > 0.5V/ns is recommended , see Table 6 for more information
[13] Operable with reduced spectral performance up to +7 dBm
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