8 / 14 page
8 of 14
RF3166D
Rev A2 061006
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
Application Schematic
Evaluation Board Schematic
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
DCS IN
BAND SELECT
TX ENABLE
VBATT
VRAMP
GSM IN
DCS OUT
GSM OUT
9
1
3
2
6
5
4
8
7
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
50
Ω μstrip
BAND SELECT
TX ENABLE
VBATT
VRAMP
22
μF*
Notes:
* The value of 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 EGSM900 and 0.2 dB for DCS1800 bands.
GND
P1
1
CON1
DCS IN
GSM IN
DCS OUT
GSM OUT
VCC
P2
1
CON1
P2-1
9
1
3
2
6
5
4
8
7
British ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
