SI3012-KS Silicon Laboratories Inc, SI3012-KS Datasheet - Page 49

• Manufacturer Part Number: SI3012-KS
• Description: IC ISOMODEM SYSTEM-SIDE 16SOIC
• Manufacturer: Silicon Laboratories Inc

Specifications of SI3012-KS

• Data Format: V.90
• Interface: Serial
• Voltage - Supply: 3.3 V ~ 5 V
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Baud Rates: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

5
4:3
2
1
0
Bit
ACT
DCT[1:0]
RZ
Reserved
RT
Name
AC Termination Select.
0 = Selects the real impedance.
1 = Selects the complex impedance.
DC Termination Select.
00 = Reserved.
01 = Japan Mode. Low voltage mode. (Transmit level = –3 dBm).
10 = FCC Mode. Standard voltage mode. (Transmit level = –1 dBm).
11 = CTR21 Mode. Current limiting mode. (Transmit level = –1 dBm).
Ringer Impedance.
0 = Maximum (high) ringer impedance.
1 = Synthesize ringer impedance. C15, R14, Z2, and Z3 must not be installed when set-
ting this bit. See "Ringer Impedance" on page 25.
Read returns zero.
Ringer Threshold Select.
Used to satisfy country requirements on ring detection. Signals below the lower level will
not generate a ring detection. Signals above the upper level are guaranteed to generate a
ring detection.
0 = 11 to 22 V
1 = 17 to 33 V
RMS
RMS
.
.
Rev. 2.01
Function
Si3038
49