RF2324 查看數據表（PDF） - RF Micro Devices

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RF2324

PCS CDMA/TDMA 3V PA DRIVER AMPLIFIER

RF Micro Devices 

RF2324

Pin Function Description

Interface Schematic

1

PD

Power down for the IC. VPD = 2.8V +/- 0.1V turns on the part.

PD

VPD<0.9V turns off the Part. External RF bypassing is required. The

trace length between the pin and the bypass capacitors should be min-

imized. The ground side of the bypass capacitors should connect

immediately to ground plane. Nominal current required for VPD = 2.8V

is 8.5 mA typical and 12 mA Max (@ VPD =2.9 V).

2

NC

No connection. This pin is typically left unconnected or grounded.

3

RF IN

RF input pin. This pin is DC-coupled and matched to 50Ω at 1880MHz.

RF IN

PD

TO OUTPUT

STAGE

4

4

GND1

Ground connection. For best performance, keep traces physically short

and connect immediately to ground plane.

5

GND2

See pin 6.

6

GND2

Ground connection. For best performance, keep traces physically short

and connect immediately to ground plane.

7

RF OUT Amplifier Output pin. This pin is an open-collector output. It must be

biased to either VCC or pin 7 through a choke or matching inductor.

This pin is typically matched to 50Ω with a shunt bias/matching induc-

tor and series blocking/matching capacitor. Refer to application sche-

matics.

8

GND2

See pin 6.

Rev A6 010717

4-117

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