SI3015-FS Silicon Laboratories Inc, SI3015-FS Datasheet - Page 10

• Manufacturer Part Number: SI3015-FS
• Description: SI2400 ISOMODEM LINE-SIDE
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3015-FS

• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Baud Rates: -

CLKOUT
RESET_
RXD
TXD
CTS_
VCC
Decoupling cap for U1 VD
2
C27
C10
1
2
3
4
5
6
7
8
GPIO4/ALERT
Y1
XTALI
XTALO
CLKOUT
VD
RXD
TXD
CTS
RESET
C26
GPIO3/ESC
GPIO2/CD_
GPIO1/EOFR
1
AOUT
Si2400
U1
GPIO1
GPIO2
GPIO3
GPIO4
AOUT
ISOB
GND
C1A
16
15
14
13
12
11
10
9
C3
R27
Z4
D3
C30
C1
C4
Note 1: R12, R13 and C14 are only required if complex AC termination is used (ACT bit = 1).
Note 2: See "Ringer Impedance" section for optional Czech Republic support.
Note 3: See "Billing Tone Immunity" section for optional billing tone filter (Germany, Switzerland, South Africa).
Note 4: See Appendix for applications requiring UL 1950 3rd edition compliance.
Note 5: R27, R28, D3, D4, Z4, Z5, RV2 may be populated for enhanced lightning option.
Note 6: L1,L2, C38, C39, R31, R32 are for EN55022/CISPR-22 Conducted Disturbance compliance.
R28
C9
Refer to AN48 for Layout Guidelines
Please submit layout to Silicon Labs
for review prior to PCB fabrication.
Figure 3. Typical Application Circuit Schematic
1
2
3
4
5
6
7
8
TSTA/QE2
TSTB/DCT
IGND
C1B
RNG1
RNG2
QB
QE
C18
C19
Si3015
DCT/REXT2
U2
NC/VREG2
D4
TX/FILT2
NC/FILT
NC/REF
VREG
REXT
Z5
C8
C7
RX
C13
16
15
14
13
12
11
10
9
C6
R10
R9
C12
C16
+
R11
C14
R12
RV2
+
D2
D1
R13
R2
C5
R26
R25
C22
R18
C25
Z1
R24
C24
Q4
R5
C39
C38
Q1
L2
L1
R32
Q2
R31
Q3
C20
R6
FB2
FB1
RV1
RING
TIP