DatasheetQ Logo
Electronic component search and free download site.
Transistors,MosFET ,Diode,Integrated circuits

NBB-310-PCBA-41X View Datasheet(PDF) - RF Micro Devices

Part Name
Description
Manufacturer
NBB-310-PCBA-41X Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
NBB-310
Pin Function Description
Interface Schematic
1
RF IN
RF input pin. This pin is NOT internally DC blocked. A DC blocking capacitor,
suitable for the frequency of operation, should be used in most applica-
tions. DC coupling of the input is not allowed, because this will override the
internal feedback loop and cause temperature instability.
2
GND
Ground connection. For best performance, keep traces physically short
and connect immediately to ground plane.
3
RF OUT
RF output and bias pin. Biasing is accomplished with an external series
resistor and choke inductor to VCC. The resistor is selected to set the DC
current into this pin to a desired level. The resistor value is determined by
the following equation:
R = (---V----C---C-----–----V----D----E---V---I--C----E----)
ICC
RF IN
RF OUT
Care should also be taken in the resistor selection to ensure that the cur-
rent into the part never exceeds maximum datasheet operating current
over the planned operating temperature. This means that a resistor
between the supply and this pin is always required, even if a supply near
8.0V is available, to provide DC feedback to prevent thermal runaway.
Because DC is present on this pin, a DC blocking capacitor, suitable for the
frequency of operation, should be used in most applications. The supply
side of the bias network should also be well bypassed.
4
GND
Same as pin 2.
Package Drawing
45°
UNITS:
Inches
(mm)
0.040
(1.02)
0.070
(1.78)
0.055
(1.40)
0.020
0.200 sq.
(5.08)
0.005
(0.13)
Rev A11 DS070327
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
3 of 12
 

Share Link: 

datasheetq.com  [ Privacy Policy ]Request Datasheet ] [ Contact Us ]