
M
8
8 - 20
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Pin Number
Function
Description
Interface Schematic
1, 4, 9, 12
GND
These pins and the ground paddle must be connected
to a high quality RF/DC ground.
2, 3
LOP, LON
Differential LO input ports. This device may be driven in either
differential or single ended mode. In single ended mode, one
port should be driven by the LO source while the other port may
be terminated with a 50
Ω
resistor to ground.
5, 8, 13
N/C
No Connection required. These pins may be connected to RF/
DC ground without affecting performance.
6, 7
QN, QP
Differential Quadrature baseband input. These are high
impedance ports. The nominal recommended bias voltage is
between 1.2 - 1.4V. The nominal recommended baseband input
voltage is 1.2V peak to peak differential. By adjusting the DC
bias voltage on ports QN & QP, the Carrier Suppression of the
device can be optimized for a specific frequency band and LO
power level. The typical offset voltage for optimization is less
than 15 mV.
The amplitude and phase difference between the I and Q inputs
can be adjusted in order to optimize the Sideband Suppression
for a specific frequency band and LO power level.
10, 11
RFN, RFP
RF Output port. This port is matched to 50 Ohms.
A series capacitor should be connected to this port in
order to prevent the DC supply voltage from appearing
on the customer’s PC board.
14, 15
IP, IN
Differential Quadrature baseband input. These are high
impedance ports. The nominal recommended bias voltage is
between 1.2 - 1.4V. The nominal recommended baseband input
voltage is 1.2V peak to peak differential. By adjusting the DC
bias voltage on ports IN & IP, the Carrier Suppression of the
device can be optimized for a specific frequency band and LO
power level. The typical offset voltage for optimization is less
than 15 mV.
The amplitude and phase difference between the I and Q inputs
can be adjusted in order to optimize the Sideband Suppression
for a specific frequency band and LO power level.
16
VCC
Supply voltage. Set to 3.0V for nominal operation. The nominal
current for this port is 93 mA.
Pin Descriptions
SiGe WIDEBAND DIRECT
MODULATOR RFIC, 4.0 - 7.0 GHz
v03.0206
HMC496LP3
/
496LP3E