HMMC-3102 Datasheet, PDF (3/8 Pages) Agilent(Hewlett-Packard) – DC - 16 GHz Packaged Divide-by-2 Prescaler

RF Specifications (Continued)
(T_A = 25°C, Z₀ = 50 Ω, V_CC – V_EE = 5.0 volts)
Symbol
Parameters/Conditions
Min.
P_out3
@ ƒ_out < 1 GHz
4
@ ƒ_out = 2.5 GHz
3.5
@ ƒ_out = 3.5 GHz
0
|V_{out(p–p)}|⁴
@ ƒ_out < 1 GHz
@ ƒ_out = 2.5 GHz
@ ƒ_out = 3.5 GHz
P_Spitback
ƒ_out power level appearing at RF_in or RF_in
(@ ƒ_in 12 GHz, unused RF_out or RF_out unterminated)
ƒ_out power level appearing at RF_in or RF_in
(@ ƒ_in = 12 GHz, both RF_out & RF_out terminated)
P_feedthru
Power level of ƒ_in appearing at RF_out or RF_out
(@ ƒ_in = 10 GHz, P_in= 0 dBm, referred to P_in (ƒ_in))
H₂
Second harmonic distortion output level
(@ ƒ_out = 3.0 GHz, referred to P_out (ƒ_out))
Notes
3. Fundamental of output square wave’s Fourier Series.
4. Square wave amplitude calculated from Pout.
Typ.
Max.
Units
6
dBm
5,5
dBm
2.0
dBm
0.99
volts
0.94
volts
0.63
volts
-40
dBm
-47
dBm
-23
dBc
-25
dBc
Applications
The HMMC-3102 is designed for use in
high frequency communications, micro-
wave instrumentation, and EW radar
systems where low phase-noise PLL
control circuitry or broad-band frequency
translation is required.
Operation
The device is designed to operate
when driven with either a single-ended
or differential sinusoidal input signal
over a 200 MHz to 16 GHz bandwidth.
Below 200 MHz the prescaler input is
“slew-rate” limited, requiring fast
rising and falling edge speeds to
properly divide. The device will operate
at frequencies down to dc when driven
with a square-wave.
Due to the presence of an off-chip
RF-bypass capacitor inside the package
(connected to the V_CC contact on the
device), and the unique design of the
device itself, the component may be
biased from either a single positive or
single negative supply bias. The back-
side of the package is not dc
connected to any dc bias point on
the device.
For positive supply operation, V_CC pins
are nominally biased at any voltage in
the +4.5 to +6.5 volt range with pin 8
(V_EE) grounded. For negative bias op-
eration V_CC pins are typically grounded
and a negative voltage between
-4.5 to -6.5 volts is applied to
pin 8 (V_EE).
ac-Coupling and dc-Blocking
All RF ports are dc connected on-chip
to the V_CC contact through on-chip 50
Ω resistors. Under any bias condi-
tions where V_CC is not dc grounded
the RF ports should be ac coupled via
series capacitors mounted on the PC-
board at each RF port. Only under bias
conditions where V_CC is dc grounded
(as is typical for negative bias supply
operation) may the RF ports be direct
coupled to adjacent circuitry or in
some cases, such as level shifting
to subsequent stages. In the latter
case the package heat sink may be
“floated” and bias applied as the dif-
ference between V_CC and V_EE.
3