SWITCHES - SMT
10
10 - 149
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20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373
Order On-line at www.hittite.com
Eval Board Layout (Top View)
The cir cuit boar d used in th e nal appli cation s hould
be gen erated wit h proper RF c ircuit d esig n tech -
niques. S ignal lines at the RF p or ts should have
50 ohm im pedan ce and th e packag e ground lead s
and expos ed ground p addle sh ould be c onne cted
direc tly to the gr ound plan e similar to th at shown
above. The evaluation circ uit boar d shown ab ove is
available from Hi tt ite Micr owave Cor poratio n upon
request.
List of Materials for Evaluation PCB 107949
[1]
*R1 = R 2 = 100 O hm.
These are o ptio nal resisto rs.
Item Descripti on
J1 - J3 PCB M oun t SMA C on nec tor
J4 - J5 DC Pin
C1 - C3
Chip Capacitor, 0402 Pkg, choose value for
lowest frequency of operation. PCBs are pro-
vi ded w it h 10 0 ~ 30 0 p F cap ac itor s. U ser m ay
jum per c ap ac itor m ou ntin g ga ps o n PCB to
all ow op era tio n to “ DC ”.
R1 - R2 100 Oh m Res ist or, 040 2 Pkg.
U1
HMC270MS8G / HMC270MS8GE
SPDT Switch
PCB
[2]
102807 Eva luat io n PCB 2 .0” x 2 .6 ”
[1] Re feren ce t his n umb er wh en or der in g com pl ete evalu ati on PC B
[2] Circ ui t Boa rd M ater ial: Ro ge rs 4 35 0
HMC270MS8G / 270MS8GE
v04.0607
GaAs MMIC SPDT SWITCH
NON-REFLECTIVE, DC - 8 GHz
