HMC624LFLP4E Datasheet, PDF (6/8 Pages) Hittite Microwave Corporation – 0.5 dB LSB GaAs MMIC 6-BIT DIGITAL ATTENUATOR, 60 - 500 MHz

v00.0511
Pin Descriptions
Pin Number
Function
1
P/S
HMC624LFLP4E
0.5 dB LSB GaAs MMIC 6-BIT
DIGITAL ATTENUATOR, 60 - 500 MHz
8
Description
Interface Schematic
2
CLK
3
SERIN
See truth table, control voltage
table and timing diagram.
4
5, 14
6, 13
7 - 12
LE
GND
ATTIN,
ATTOUT
ACG1 - ACG6
These pins and package bottom
must be connected to RF/DC ground.
These pins are DC coupled and matched to 50 Ohms.
Blocking capacitors are required. Select value based
on lowest frequency of operation.
External capacitors to ground are required. Select values
for lowest frequency of operation. Place capacitors as
close to pins as possible.
15
SEROUT
Serial input data delayed by 6 clock cycles.
16, 17
19 - 24
PUP2, PUP1
D5, D4, D3,
D2, D1, D0
See truth table, control voltage
table and timing diagram.
18
Vdd
Supply voltage
For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824
Phone: [phone] Fax: [phone] Order On-line at www.hittite.com
Application Support: Phone: [phone] or [e-mail]
8-6