SI3015-F-FS Silicon Laboratories Inc, SI3015-F-FS Datasheet - Page 44

• Manufacturer Part Number: SI3015-F-FS
• Description: IC ISOMODEM LINE-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of SI3015-F-FS

• Package / Case: 16-SOIC (3.9mm Width)
• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 26 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Baud Rates: -
• Lead Free Status / Rohs Status: Compliant

Si2403
U67 ITC1
Reset settings
44
Name
15:8
Type
Bit
3:2
Bit
7
6
5
4
1
0
Reserved Read returns zero.
Reserved Read returns zero.
DCT[1:0]
D15 D14 D13 D12 D11
Name
OHS
OFF
ACT
RZ
RT
=
0x0008
DC Termination Off.
0 = Normal operation. The OFF bit must always be set to 0 when on-hook.
1
which is used to enhance operation with an off-hook parallel phone.
On-Hook Speed.
0 = The Si2403 will execute a fast on-hook.
1
AC Termination Select.
0 = Selects the real impedance.
1
DC Termination Select.
00
01
10 = FCC mode. Standard voltage mode (Transmit level = –9.85 dBm).
11
Ringer Impedance.
0 = Maximum (high) ringer impedance.
1
this bit. See the “Ringer Impedance” section in “AN70: Si2456/Si2433/Si2414/Si2403 Modem
Designer’s Guide”.
Ringer Threshold Select.
Used to satisfy country requirements on ring detection. Signals below the lower level do not
generate a ring detection; signals above the upper level are guaranteed to generate a ring
detection.
0 = 11 to 22 V
1
=
=
=
=
=
=
=
=
DC termination disabled and the device presents an 800 Ω dc impedance to the line,
The Si2403 will execute a slow controlled on-hook.
Selects the complex impedance.
Synthesize ringer impedance. C15, R14, Z2, and Z3 must not be installed when setting
17 to 33 V
CTR21 mode. Current limiting mode (Transmit level
Low-voltage mode (Transmit level
Japan mode (Transmit level
rms
rms
.
.
D10
D9
Rev. 1.2
=
D8
–11.85 dBm).
=
OFF OHS ACT
R/W
D7
–13.85 dBm).
Function
R/W
D6
R/W
D5
=
–9.85 dBm).
D4
D3
DCT[1:0]
R/W
D2
R/W
RZ
D1
R/W
D0
RT