RF3145 データシートの表示（PDF） - RF Micro Devices
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RF3145 Datasheet PDF : 18 Pages
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RF3145
DCS/PCS IN
BAND SELECT
TX ENABLE
VBATT
VMODE
VRAMP
GSM IN
Application Schematic
50 Ω μstrip
1
2
3
4
5
15 kΩ**
6
50 Ω μstrip
7
12
11
10
9
8
** Used to filter noise and spurious from base band.
50 Ω μstrip
50 Ω μstrip
DCS/PCS OUT
GSM OUT
DCS/PCS IN
BAND SELECT
TX ENABLE
VBATT
VMODE
VRAMP
GSM IN
Evaluation Board Schematic
(Download Bill of Materials from www.rfmd.com.)
P1
1 GND P2-1
CON1
P2
1 VCC
CON1
50 Ω μstrip
1
2
3
4
3.3 μF*
5
15 kΩ**
6
50 Ω μstrip
7
12
50 Ω μstrip ***
11
DCS/PCS OUT
10
50 Ω μstrip ***
9
GSM OUT
8
*Not required in most applications.
** Used to filter noise and spurious from baseband.
*** 0.05 dB loss for GSM
0.15 dB loss for DCS
Rev A4 DS050919
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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