Specifications

AN93

Rev. 0.9 19

2.3.1. Bill of Materials: Si2493/57/34/15/04 Chipset

Component Value Supplier(s)

C1, C2 33 pF, Y2, X7R, ±20% Panasonic, Murata, Vishay

C3 10 nF, 250 V, X7R, ±10% Venkel, SMEC

C4 1.0 µF, 50 V, Elec/Tant, ±20% Panasonic

C5, C6, C50, C52 0.1 µF, 16 V, X7R, ±20% Venkel, SMEC

C7 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

33 pF, 16 V, X7R, ±20% Venkel, SMEC

C51, C53 0.22 µF, 16 V, X7R, ±20% Venkel, SMEC

D1, D2

Dual Diode, 225 mA, 300 V, CMPD2004S Central Semiconductor

FB1, FB2 Ferrite Bead, BLM21AG601S Murata

Q1, Q3 NPN, 300 V, MMBTA42 OnSemi, Fairchild

Q2 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

R1 1.07 kΩ, 1/2 W, 1% Venkel, SMEC, Panasonic

R2 150 Ω, 1/16 W, 5% Venkel, SMEC, Panasonic

R3 3.65 kΩ, 1/2 W, 1% Venkel, SMEC, Panasonic

R4 2.49 kΩ, 1/2 W, 1% Venkel, SMEC, Panasonic

R5, R6 100 kΩ, 1/16 W, 5% Venkel, SMEC, Panasonic

R7, R8 20 MΩ, 1/16 W, 5% Venkel, SMEC, Panasonic

R9 1 MΩ, 1/16 W, 1% Venkel, SMEC, Panasonic

R10 536 Ω, 1/4 W, 1% Venkel, SMEC, Panasonic

R11 73.2 Ω, 1/2 W, 1% Venkel, SMEC, Panasonic

R12, R13

0 Ω, 1/16 W Venkel, SMEC, Panasonic

R15, R16

0 Ω, 1/16 W Venkel, SMEC, Panasonic

U1 Si2493/57/34/15/04 Silicon Labs

U2 Si3018 Silicon Labs

1,4

4.9152 MHz, 20 pF, 100 ppm, 150 Ω ESR ECS Inc., Siward

Z1 Zener Diode, 43 V, 1/2 W, BZX84C43 On Semi

Notes:

1. In STB applications, C40, C41, and Y1 can be removed by using the 27 MHz clock input feature.

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

3. To decrease emissions, R15 and R16 may be populated with a BLM21AG601S or equivalent. R12 and R13 may be

populated with 5%, 1/16 W, 56 Ω resistors.

4. 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. 50 ppm initial accuracy crystals typically satisfy this

requirement.