SI3015-F-FS Silicon Laboratories Inc, SI3015-F-FS Datasheet - Page 46

• 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
U69 ITC3
Reset settings
46
Name
15:8
Type
Bit
1:0
Bit
7
6
5
4
3
2
Reserved Read returns zero.
Reserved Do not modify. Must be set to zero.
Reserved Do not modify.
D15 D14 D13 D12 D11 D10
MODE
Name
FLVM
DIAL
FJM
VOL
=
0x0006
DTMF Dialing Mode.
This bit should be set during DTMF dialing in CTR21 mode if LVCS < 12.
0 = Normal operation.
1
Force Japan DC Termination Mode.
0 = Normal Gain.
1
ing for a transmit level of –1 dBm. See the “DTMF Dialing” section in “AN70: Si2456/Si2433/
Si2414/Si2403 Modem Designer’s Guide”.
Line Voltage Adjust.
When set, this bit adjusts the TIP-RING line voltage. Lowering this voltage improves margin in
low-voltage countries. Raising this voltage may improve large-signal distortion performance.
0 = Normal operation.
1
Force Low Voltage Mode.
When DCT (U67, bits 3:2)
DCT
0 = Disable.
1
Mode.
This bit enables on-hook line monitoring. It is automatically set while on-hook and cleared
while off-hook.
=
=
=
=
Increase headroom for DTMF dialing.
When DCT
Lower DCT voltage.
Enable.
=
00) while allowing for a transmit level of –1 dBm.
=
2 (FCC mode), setting this bit forces Japan dc termination mode while allow-
=
D9
10 (FCC mode), setting FLVM forces the low-voltage mode (see
Rev. 1.2
D8
D7
Function
DIAL FJM VOL FLVM MODE
R/W R/W R/W
D6
D5
D4
R/W
D3
R/W
D2
D1
D0