SI3015-FS Silicon Laboratories Inc, SI3015-FS Datasheet - Page 73

• 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: -

SF4 (DAA4). DAA Low Level Functions 4
Reset settings = 0000_1111b (0x0F)
*Note: If ARL = 10b and ATL = 10b, AOUT is muted on Si2400 revisions C and earlier.
Name
Type
Bit
6:4
3:2
1:0
Bit
7
SQLH
R/W
D7
Name
SQLH
ARG
ARL
ATL
D6
Ring Squelch.
If the host implements a manual ring detect (bypassing the Si2400 micro), this bit must
be set, then cleared following a polarity reversal detection. Used to quickly recover offset
on RNG1/2 pins after polarity reversal.
0 = Normal.
1 = Squelch.
Analog Receive Gain.
Off-Hook
000 = 0 dB gain
001 = 3 dB gain
010 = 6 dB gain
011 = 9 dB gain
1xx = 12 dB gain
AOUT Receive—Path Level
DAA receive path signal AOUT gain.
00 = 0 dB
01 = –6 dB
10 = –12 dB*
11 = Mute
AOUT Transmit—Path Level
DAA transmit path signal AOUT gain.
00 = –18 dB
01 = –24 dB
10 = –30 dB*
11 = Mute
ARG
R/W
D5
D4
D3
On-Hook
000 = 7 dB
001 = 6 dB
010 = 4.8 dB
011 = 3.5 dB
1xx = 2.0 dB
Rev. 1.1
ARL
R/W
D2
Function
D1
R/W
ATL
D0
Si2400
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