si2439-a-gm Silicon Laboratories, si2439-a-gm Datasheet - Page 13

• Manufacturer Part Number: si2439-a-gm
• Description: V.92 And V.34 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

3.
Notes:
1. Several diode bridge configurations are acceptable. For example, a single DF04S or four 1N4004 diodes may be used.
2. Murata BLM21AG601SN1 may be substituted for R15–R16 (0 ) to decrease emissions.
3. To ensure compliance with ITU specifications, frequency tolerance must be less than 100 ppm including initial
Bill of Materials: Si2494/39 Chipset
C5, C6, C50, C52
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.
Component
R15, R16
FB1, FB2
R12, R13
D1, D2
Q1, Q3
Q4, Q5
C1, C2
C8, C9
R5, R6
R7, R8
RV1
C10
C40
C41
C51
R10
R11
Y1
C3
C4
C7
Q2
R1
R2
R3
R4
R9
U1
U2
Z1
3
1
2
32.768 kHz, 12 pF, 100 ppm, 35 k max ESR
4.9152 MHz, 20 pF, 100 ppm, 150  ESR
Dual Diode, 225 mA, 300 V, CMPD2004S
Zener Diode, 43 V, 1/2 W, BZT84C43
4.9152 MHz: 33 pF, 16 V, NPO, ±5%
32.768 kHz: 18 pF, 16 V, NPO, ±5%
Ferrite Bead, BLM21AG601SN1
NPN, 80 V, 330 mW, MMBTA06
1.0 µF, 50 V, Elec/Tant, ±20%
27 MHz (from external clock)
0.01 µF, 16 V, X7R, ±20%
0.22 µF, 16 V, X7R, ±20%
10 nF, 250 V, X7R, ±20%
0.1 µF, 16 V, X7R, ±20%
2.7 nF, 50 V, X7R, ±20%
680 pF, Y2, X7R, ±10%
NPN, 300 V, MMBTA42
27 MHz: Not Populated
PNP, 300 V, MMBTA92
33 pF, Y2, X7R, ±20%
Sidactor, 275 V, 100 A
100 k, 1/16 W, 5%
1.07 k, 1/2 W, 1%
3.65 k, 1/2 W, 1%
2.49 k, 1/2 W, 1%
20 M, 1/16 W, 5%
150 , 1/16 W, 5%
1 M, 1/16 W, 1%
73.2 , 1/2 W, 1%
536 , 1/4 W, 1%
56 , 1/16 W, 1%
0 , 1/16 W
Si2494/39
Si3018
Value
Rev. 1.0
Panasonic, Murata, Vishay
Panasonic, Murata, Vishay
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Venkel, SMEC, Panasonic
Teccor, Protek, ST Micro
Central Semiconductor
OnSemi, Fairchild
OnSemi, Fairchild
OnSemi, Fairchild
ECS Inc., Siward
Venkel, SMEC
Venkel, SMEC
Venkel, SMEC
Venkel, SMEC
Venkel, SMEC
Venkel, SMEC
Silicon Labs
Silicon Labs
Supplier(s)
Panasonic
Si2494/39
On Semi
Murata
13