SBF-5089 Datasheet, PDF (4/5 Pages) List of Unclassifed Manufacturers – DC-500 MHz, Cascadable InGaP/GaAs HBT MMIC Amplifier

Preliminary
SBF-5089 DC-500 MHz Cascadable MMIC Amplifier
Basic Application Circuit
V_S
R_BIAS
1 uF 1000
pF
C_D
RF in
C_B
4
1
3
SBF-5089
2
Application Circuit Element Values
Reference
Designator
70
Frequency (Mhz)
100
240
500
850
C_B
1uF 1000 pF 1000 pF 220 pF 100pF
L_C
C_D
1 uF 100 pF 100 pF 100 pF 68 pF
L_C
6.8uH 1.2 uH 1.2uH 68 nH 33 nH
RF out
L1
6.8nH 6.8nH
6.8nH 6.8nH 6.8nH
L1
C_B
Recommended Bias Resistor Values for I_D=90mA
R_BIAS=( V_S-V_D ) / I_D
Supply Voltage(V_S) 7.5 V 8 V 10 V 12 V
R_BIAS
27 33
55 77
Note: R_BIAS provides DC bias stability over temperature.
Rbias
CD
LC
CB
L1
CB
Part Identification Marking
4
4
BF5
BF5Z
123
123
Tin-Lead
Lead Free
Mounting Instructions
1. NOTE: For broadband RF unconditional stability do not
put GND vias under the exposed backside GND paddle.
2. Solder the copper pad on the backside of the
device package to the ground plane.
3. Use a large ground pad area with many plated
through-holes as shown.
4. We recommend 1 or 2 ounce copper. Measurement
for this data sheet were made on a 31 mil thick FR-4
board with 1 ounce copper on both sides.
Pin # Function
Description
1
RF IN RF input pin. This pin requires the use
of an external DC blocking capacitor
chosen for the frequency of operation.
2, 4
GND Connection to ground. Use via holes
for best performance to reduce lead
inductance as close to ground leads as
possible.
3 RF OUT/ RF output and bias pin. DC voltage is
BIAS present on this pin, therefore a DC
blocking capacitor is necessary for
proper operation.
Caution: ESD sensitive
Appropriate precautions in handling, packaging
and testing devices must be observed.
Part Number Ordering Information
Part Number
Reel Size
Devices/Reel
SBF-5089
7"
SBF-5089Z
7"
1000
1000
303 South Technology Court, Broomfield, CO 80021
Phone: (800) SMI-MMIC
4
http://www.sirenza.com
EDS-103413 Rev. C