RF2638PCBA-PCSSLASHCEL datasheet(6/10 Pages) RFMD

6 / 10 page

6-32

RF2638

Rev B15 060921

Evaluation Board Schematic - PCS/Cellular

RF=1880MHz, IF=130MHz

(Download Bill of Materials from www.rfmd.com.)

Evaluation Board Schematic - Dual Output

Cellular Out=836MHz, PCS Out=1880MHz, IF=130MHz

10 nF

VCC

IF IN

RF OUT

2638400-

Ω μstrip

68 pF

270 nH

1 nF

LO IN

Ω μstrip

VCC

10 nF

P1-1

VCC

GND

CON3

**Board as provided.

C3*

C4*

L2*

C6*

5 pF

2.7 nH

PCS**

1.5 pF

22 pF

12 nH

Cellular

2 pF

Note: Board losses: 0.1 dB, Transformer losses: 1 dB

CELL OUT

Ω μstrip

5 pF

10 nF

VCC

IF IN

PCS OUT

2638401, Rev 1

Ω μstrip

100 pF

1 nF

LO IN

Ω μstrip

0.5 pF

100 nH

10 nF

CON3

GND

P1-2

VCC

6.8 nH

4 pF

18 nH

VCC

Bias Choke Only;

Not part of matching network

5.6 nH

Dual Band, Split Outputs matching network:

Diplexed match at US cellular and PCS transmit bands.

T4-1

C9*

TBD

L1*

TBD

C10*

TBD

Note: Board losses: 0.1 dB, Transformer loss: 1 dB

RF2638PCBA-PCS/CEL 数据表(PDF) 6 Page - RF Micro Devices

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RF2638PCBA-PCS/CEL 数据表(PDF) 6 Page - RF Micro Devices

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