mga-645t6 Avago Technologies, mga-645t6 Datasheet - Page 3

• Manufacturer Part Number: mga-645t6
• Description: Low Noise Amplifer With Bypass/shutdown Mode In Low Profle Package
• Manufacturer: Avago Technologies

Demo Board Layout
Figure 4. Demo Board Layout Diagram *
Figure 5. Id vs Vbypass (Vdd=3V)

GROUND
VBYPASS
16
14
12
10
8
6
4
2
0
1
VDD
1.2
1.4
1.6
J1
1.8
Vsd,V
2
2.2
2.4
L1
L3
2.6
2.8
L2
Copper foil
3
J2
C1
C2
*Application Notes: -
1. Performance in a specified frequency band can be
2. Operational Logic of Bypass/Shutdown pin (Pin 1)
Pin 1 voltage in LNA mode can be varied to enable
the LNA bias current to be adjusted, refer to next
graph:
optimized by changing component values in the
demoboard above to suit the application at that
frequency. The schematic on page 4 and 7 show
two sets of components used to demonstrate
performance at the (2.3 - 2.4) GHz Wibro band and
(2.5 - 2.7) GHz Wimax/DMB band.
- Normal LNA operation : [1.2 to (Vdd-0.3)] Volt,
- Bypass/Shutdown mode : 0 Volt or Open