HMC495LP3 Datasheet, PDF (10/12 Pages) Hittite Microwave Corporation – SiGe WIDEBAND DIRECT MODULATOR RFIC, 250 - 3800 MHz

v02.0705
HMC495LP3 / 495LP3E
SiGe WIDEBAND DIRECT
MODULATOR RFIC, 250 - 3800 MHz
Pin Descriptions (continued)
Pin Number
Function
Description
13
Vcc1
Supply voltage for the mixer and output stages.
Set to 3.3V for nominal operation. The nominal
current for this port is 37 mA.
14, 15
Ip, In
Differential In-Phase baseband input. These are high
impedance ports. The nominal recommended bias voltage
is between 1.0 - 1.15V.The nominal recommened baseband
input voltage is 800 mV 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 5 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.
Supply voltage for the LO stage. Set to 3.3V for nominal
16
Vcc2
operation. The nominal current for this port is 64 mA.
Interface Schematic
8
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