SI2439 datasheet(13/70 Pages) SILABS

13 / 70 page

Si2494/39

Rev. 1.0

3. Bill of Materials: Si2494/39 Chipset

Component

Value

Supplier(s)

C1, C2

33 pF, Y2, X7R, ±20%

Panasonic, Murata, Vishay

10 nF, 250 V, X7R, ±20%

Venkel, SMEC

1.0 µF, 50 V, Elec/Tant, ±20%

Panasonic

C5, C6, C50, C52

0.1 µF, 16 V, X7R, ±20%

Venkel, SMEC

2.7 nF, 50 V, X7R, ±20%

Venkel, SMEC

C8, C9

680 pF, Y2, X7R, ±10%

Panasonic, Murata, Vishay

C10

0.01 µF, 16 V, X7R, ±20%

Venkel, SMEC

C40

C41

32.768 kHz: 18 pF, 16 V, NPO, ±5%

Venkel, SMEC

4.9152 MHz: 33 pF, 16 V, NPO, ±5%

27 MHz: Not Populated

C51

0.22 µF, 16 V, X7R, ±20%

Venkel, SMEC

D1, D21

Dual Diode, 225 mA, 300 V, CMPD2004S

Central Semiconductor

FB1, FB2

Ferrite Bead, BLM21AG601SN1

Murata

Q1, Q3

NPN, 300 V, MMBTA42

OnSemi, Fairchild

PNP, 300 V, MMBTA92

OnSemi, Fairchild

Q4, Q5

NPN, 80 V, 330 mW, MMBTA06

OnSemi, Fairchild

RV1

Sidactor, 275 V, 100 A

Teccor, Protek, ST Micro

1.07 k

, 1/2 W, 1%

Venkel, SMEC, Panasonic

150

, 1/16 W, 5%

Venkel, SMEC, Panasonic

3.65 k

, 1/2 W, 1%

Venkel, SMEC, Panasonic

2.49 k

, 1/2 W, 1%

Venkel, SMEC, Panasonic

R5, R6

100 k

, 1/16 W, 5%

Venkel, SMEC, Panasonic

R7, R8

20 M

, 1/16 W, 5%

Venkel, SMEC, Panasonic

1 M

, 1/16 W, 1%

Venkel, SMEC, Panasonic

R10

536

, 1/4 W, 1%

Venkel, SMEC, Panasonic

R11

73.2

, 1/2 W, 1%

Venkel, SMEC, Panasonic

R12, R13

, 1/16 W, 1%

Venkel, SMEC, Panasonic

R15, R162

, 1/16 W

Venkel, SMEC, Panasonic

Si2494/39

Silicon Labs

Si3018

Silicon Labs

Y13

32.768 kHz, 12 pF, 100 ppm, 35 k

 max ESR

ECS Inc., Siward

4.9152 MHz, 20 pF, 100 ppm, 150

 ESR

27 MHz (from external clock)

Zener Diode, 43 V, 1/2 W, BZT84C43

On Semi

Notes:

Several diode bridge configurations are acceptable. For example, a single DF04S or four 1N4004 diodes may be used.

Murata BLM21AG601SN1 may be substituted for R15–R16 (0

) to decrease emissions.

To ensure compliance with ITU specifications, frequency tolerance must be less than 100 ppm including initial

accuracy, 5-year aging, 0 to 70 °C, and capacitive loading. For optimal V.92 PCM upstream performance, the

recommended crystal accuracy is ±25 ppm.

SI2439 Datasheet(PDF) 13 Page - Silicon Laboratories

SI2439 Datasheet(HTML) 13 Page - Silicon Laboratories

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