SI3220-KQ Silicon Laboratories Inc, SI3220-KQ Datasheet - Page 74

• Manufacturer Part Number: SI3220-KQ
• Description: IC SLIC/CODEC DUAL-CH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: ProSLIC®r

Specifications of SI3220-KQ

• Package / Case: *
• Function: Subscriber Line Interface Concept (SLIC), CODEC
• Interface: GCI, PCM, SPI
• Number Of Circuits: 2
• Voltage - Supply: 3.3V, 5V
• Current - Supply: 65mA
• Power (watts): 941mW
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Includes: Battery Switching, BORSCHT Functions, DTMF Generation and Decoding, FSK Tone Generation, Modem and Fax Tone Detection
• Product: Telecom
• Supply Voltage (min): 3.13 V
• Supply Current: 22 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Number Of Channels: 2
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Si3220/Si3225
Indicate (C/I) bits and two handshaking bits, MR and
MX. The C/I bits indicate status and command
communication, while the handshaking bits Monitor
Receive (MR) and Monitor Transmit (MX), exchange
data in the Monitor channel. Figure 55 illustrates the
contents of a GCI highway frame.
16-Bit GCI Mode
In addition to the standard 8-bit GCI mode, the Dual
ProSLIC devices also offer a 16-bit GCI mode for
passing 16-bit voice data to the upstream host
processor. This mode can be used for testing purposes
or for passing non-companded voice data to an
upstream DSP for further processing.
In 16-bit GCI mode, both of the 8-bit voice data
channels (B1 and B2, Figure 56) of each sub-frame are
required to pass the 16-bit voice data to the host. Each
125 µ s frame can therefore accommodate up to eight
voice channels (the Dual ProSLIC can accommodate up
74
FS
Sub-Frame
SF0
Channel
Figure 55. Time-Multiplexed GCI Highway Frame Structure
B1
8
0
SF1
SF2
B2
1
8
Preliminary Rev. 0.91
SF3
125 µs = 1 Frame
to sixteen voice channels in 8-bit GCI mode). Table 43
describes the GCI mode sub-frame selection for 16-bit
GCI mode.
Table 43. Sub-Frame Selection 16-Bit GCI Mode
M
8
2
SF4
GCI Subframe 0 Selected
(Voice channels 0–1)
GCI Subframe 1 Selected
(Voice channels 2–3)
GCI Subframe 2 Selected
(Voice channels 4–5)
GCI Subframe 3 Selected
(Voice channels 6–7)
C/I
SF5
SC
MR MX
3
1
SF6
1
SF7
SDI
1
1
0
0
SDO
1
0
1
0