SI3050-KT Silicon Laboratories Inc, SI3050-KT Datasheet - Page 48

• Manufacturer Part Number: SI3050-KT
• Description: IC VOICE DAA GCI/PCM/SPI 20TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: Chipsetr

Specifications of SI3050-KT

• Package / Case: 20-TSSOP
• Function: Data Access Arrangement (DAA)
• Interface: PCM, Serial, SPI
• Number Of Circuits: 1
• Voltage - Supply: 3 V ~ 3.6 V
• Current - Supply: 8.5mA
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Includes: Line Voltage Monitor, Loop Current Monitor, Overload Detection, Parallel Handset Detection, Polarity Reversal Detection, TIP and
• Product: Modem Chip
• Supply Voltage (min): 3 V
• Supply Current: 8.5 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power (watts): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant

Si3050
monitor channel requires manipulation of the MR and
MX handshaking bits, located in bits 1 and 0 of the SC
channel described below. For purposes of this
specification, “downstream” is identified to be the data
sent by a host to the Si3050. “Upstream” is identified to
be the data sent by the Si3050 to a host.
The following diagram illustrates the Monitor channel
48
FSYNC
Transm itter
Receiver
MR
MR
MX
MX
Sub-Frame
SF0
Channel
Figure 41. Time-Multiplexed GCI Highway Frame Structure
B1
8
0
SF1
1st Byte
Figure 42. Monitor Handshake Timing
1st Byte
ACK
SF2
B2
8
1
125
SF3
2nd Byte
µ
Rev. 1.0
s
125 µs
communication protocol. For successful communication
with the Si3050, the transmitter should anticipate the
falling edge of the receiver’s acknowledgement. This
also maximizes communication speed. Because of the
handshaking
communication, the data transfer rate using the Monitor
channel is less than 8 kbytes/second.
M
2nd Byte
8
2
SF4
ACK
3rd Byte
SF5
SC Channel
protocol
C/I
6
3rd Byte
ACK
MR MX
1
SF6
required
1
SF7
for
successful