HMC497LP4_09 Datasheet, PDF (7/10 Pages) Hittite Microwave Corporation – SiGe WIDEBAND DIRECT MODULATOR RFIC, 100 - 4000 MHz

v04.1108
HMC497LP4 / 497LP4E
SiGe WIDEBAND DIRECT
MODULATOR RFIC, 100 - 4000 MHz
Pin Descriptions
Pin Number
Function
1,6, 7, 13, 15
N/C
2, 5, 8, 11,
12, 14, 17, 19,
20, 23
GND
Description
Not connected.
These pins and the ground paddle should be
connected to a high quality RF/DC ground.
10
LO inputs. Need DC decoupling capacitors.
3, 4
LOP, LON
The ports could be driven single ended or differentially.
Interface Schematic
9, 10
QN, QP
Q channel differential baseband input. These high
impedance ports should be biased around 1.5V DC.
Nominal recommended baseband input is around
1.6V pp differential.
16
RFOUT
RF output. 50 Ohms. Needs DC blocking capacitor.
18
Vcc1
21, 22
IP, IN
24
Vcc2
Supply voltage for the mixer and
output stages 79mA @ +5.0V.
I channel differential baseband input.
These high impedance ports should be at the
same bias voltage (VbbDC) as Qn & Qp.
Supply voltage for the LO stage 88mA @ +5V.
10 - 30
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