RF3404PCBA View Datasheet(PDF) - RF Micro Devices
Part Name
Description
MFG CO.
'RF3404PCBA' PDF : 12 Pages View PDF
RF3404
Preliminary
Pin Function Description
Interface Schematic
1
PCS LO PCS LO output. Internal DC block.
OUT
2
CELL LO Cellular LO output. Internal DC block.
OUT
3
GND
Low-inductance ground required.
4
MIXER
Logic input. Controls switch around mixer preamp. High selects maxi-
GAIN
mum mixer gain.
MIX GAIN
5
GND
Low-inductance ground required.
6
GND
Low-inductance ground required.
7
GND
Low-inductance ground required.
8
VCC2
PCS LNA VCC. External bypass capacitor between 10pF and 47nF
required.
9
GND
Low-inductance ground required.
10
GND
Low-inductance ground required.
11 CELL LNA Cellular LNA input. Internally matched to 50Ω. DC-blocking internal to
IN
module.
VCC
CELL LNA IN
8
12 PCS LNA IN PCS LNA input. Internally matched to 50Ω. DC-blocking internal to
module.
VCC
PCS LNA IN
13
GND
Low-inductance ground required.
14
GND
Low-inductance ground required.
15
GND
Low-inductance ground required.
16
VCC1
Cellular LNA VCC. External bypass may be required.
17
GND
Low-inductance ground required.
18
GND
Low-inductance ground required.
19
GND
Low-inductance ground required.
20
GND
Low-inductance ground required.
21
GND
Low-inductance ground required.
22
CDMA IF+ CDMA IF output. Open collector. “Current combiner” IF interface to
SAW filter recommended.
CDMA+
CDMA-
23
CDMA IF- CDMA IF output. Open collector. “Current combiner” IF interface to
See pin 22.
SAW filter recommended.
8-38
Rev A1 010918
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