參數(shù)資料
型號(hào): SI3012
廠商: Electronic Theatre Controls, Inc.
英文描述: 3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT
中文描述: 3.3伏催化裂化/ JATE直接訪問(wèn)安排
文件頁(yè)數(shù): 22/64頁(yè)
文件大小: 1740K
代理商: SI3012
Si3038
22
Rev. 2.01
Initialization
When the Si3038 is initially powered up, the RESET pin
should be asserted. When the RESET pin is
deasserted, the registers will have default values. This
reset condition guarantees the line-side chip (Si3014) is
powered down with no possibility of loading the line (i.e.,
off-hook). An example initialization procedure is outlined
below:
1. Execute a register reset by writing (any value) to register
3Ch.
2. Program the desired sample rate with register 40h (42h).
See register 40h (42h) description on page 41 for
allowable sample rates.
3. Write 0x0000 to register 3Eh to power up the Si3038.
4. Wait for the Si3038 to complete power up. The lower 8 bits
indicate that the Si3038 is ready. If the Si3038 is
configured as line #1 codec, 3Eh[7:0] = 0x0F indicates
readiness. If the codec is configured as line #2,
3Eh[7:0] = 0x33 indicates readiness.
5. Program GPIO registers to desired modes (registers 4Ch–
54h).
6. Program DAC/ADC levels with register 46h (48h).
7. Program desired line interface parameters (i.e., DCT[1:0],
ACT, OHS, RT LIM[1:0], and Vol[1:0] as defined in
Table 19, “Country Specific Register Settings,” on
page 20.)
After this procedure is complete, the Si3038 is ready for
ring detection and off-hook operation.
AC-Link
AC-link is a bidirectional, fixed rate, serial PCM digital
stream. It handles multiple input and output audio
streams and control register accesses employing a
time-division multiplexing (TDM) scheme. The AC-link
architecture divides each audio frame into 12 outgoing
and 12 incoming data streams, each with 20-bit sample
resolution.
The AC-link serial interconnect defines a digital data
and control pipe between the controller and the codec.
The AC-link supports 12 20-bit slots at 48 kHz on
SDATA_IN and SDATA_OUT. The TDM “slot-based”
architecture supports a per-slot valid tag infrastructure
that is the source of each slot’s data sets or clears to
indicate the validity of the slot data within the current
frame. For modem AFE, data streams at a variety of
required sample rates can be supported.
Isolation Barrier
The Si3038 achieves an isolation barrier through low-
cost, high-voltage capacitors in conjunction with Silicon
Laboratories’ patented ISOcap signal processing
techniques. These techniques eliminate any signal
degradation due to capacitor mismatches, common
Slovakia
Slovenia
South Africa
South Korea
Spain
Sweden
Switzerland
Syria
1
Taiwan
1
Thailand
1
UAE
United Kingdom
USA
Yemen
Note:
1.
See "DC Termination Considerations" on page 24 for more information.
2.
CTR21 includes the following countries: Austria, Belgium, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, and the
United Kingdom.
3.
Supported for loop current
20 mA.
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
10
10
10
10
11
11
11
01
01
01
10
11
10
10
0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
00
00
00
00
11
11
11
00
00
00
00
11
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
0 or 1
0 or 1
0 or 1
0
0
0
0
0 or 1
0
0
Table 19. Country Specific Register Settings (Continued)
Register
Country
5Ch
62h
OHS
ACT
DCT[1:0]
RZ
RT
LIM[1:0] VOL[1:0]
相關(guān)PDF資料
PDF描述
SI3012-KT 3.3 V FCC/JATE DIRECT ACCESS ARRANGEMENT
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SI3034 DESICCANT CLAY, 30G, PK400; RoHS Compliant: NA
SI3036 Masking Tape; Tape Backing Material:Crepe Paper; Width:24mm; Roll Length:55m; Adhesive Material:Rubber; Color:Natural; Leaded Process Compatible:No; Pack Quantity:1 RoHS Compliant: Yes
SI3038 Duct Tape; Tape Backing Material:PVC; Width:2"; Roll Length:50yard; Color:Gray; Features:Temperature-stable adhesive, Tears easily and evently by hand, leaves no stciky residue when removed RoHS Compliant: Yes
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