RF3166
Application Schematic
DCS/PCS IN
BAND SELECT
TX ENABLE
VBATT
50
Ω μstrip
1
2
3
4
5
VRAMP
GSM IN
50
Ω μstrip
6
7
8
50
Ω μstrip
9
50
Ω μstrip
DCS/PCS OUT
GSM OUT
Evaluation Board Schematic
P1
1
GND P2-1
CON1
50
Ω μstrip
DCS/PCS IN
1
BAND SELECT
TX ENABLE
2
3
VBATT
22
μF*
VRAMP
50
Ω μstrip
GSM IN
4
5
6
7
8
50
Ω μstrip
GSM OUT
9
50
Ω μstrip
DCS/PCS OUT
P2
1
VCC
CON1
Notes:
*
The value of the VBATT decoupling capacitor depends on the noise level of the phone board.
Capacitor type may be either tantalum or ceramic. Some applications may not require this capacitor.
1. All the PA output measurements are referenced to the PA output pad (pins 8 and 9).
2. The 50
Ω μstrip
between the PA output pad and the SMA connector has an approximate insertion loss
of 0.1 dB for GSM850/EGSM900 and 0.2 dB for DCS1800/PCS1900 bands.
Rev A3 DS061031
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
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