Low Noise FTTx Amplifier

50 - 1000 MHz

Rev. V1

MAAM-010239

2

2

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2

Off-Chip Component Values

8. L1 and L2 supplied from EPCOS, part number B82422A1102K100.

Test Circuit Schematic

Parameter

Test Conditions

Units

Min.

Typ.

Max.

Gain

51 MHz

1 GHz

dB

29

29.5

30

30.5

31

31.5

Gain Flatness

dB

-

0.5

1

Noise Figure

dB

-

3.5

4.5

Input Return Loss

dB

-

15

-

Output Return Loss

dB

-

15

-

Reverse Isolation

dB

-

37

-

P1dB

400 MHz

dBm

-

20

-

Output IP2

Two tones, 400 MHz, +5 dBm output per tone

dBm

-

62

-

Output IP3

Two tones, 400 MHz, +5 dBm output per tone

dBm

-

35

-

Composite Triple Beat, CTB

132 Channels, +30 dBmV/Channel at the Output

dBc

-60

-65

-

Composite Second Order, CSO 132 Channels, +30 dBmV/Channel at the Output

dBc

-55

-60

Cross modulation

132 Channels, +30 dBmV/Channel at the Output

dBc

-

-65

-

mA

-

215

250

Recommended PCB Layout

Component

Value

Package

C1-C7

0.01 µF

0402

1.0 µH

1210

L3

6.8 nH

0402

L4

1.8 nH

0402

R1

470 Ω

0402

R2

430 Ω

0402

R3

0 Ω

0402

C1

L3

C2

C7

L1

R1

C3

L4

C4

R2

C5

R3

L2

C6