参数资料
型号: SI2401FS10-EVB
厂商: Silicon Laboratories Inc
文件页数: 26/76页
文件大小: 0K
描述: BOARD EVAL SI2401 UART INTERFACE
标准包装: 1
系列: ISOmodem®
主要目的: 电信,调制解调器
嵌入式:
已用 IC / 零件: SI2401
主要属性: 双路 RJ-11 连接至电话线路,音频连接器
次要属性: RS-232,TTL 串行和 USB 接口
已供物品: 板,调制解调器,电源
相关产品: 336-1095-ND - IC ISOMODEM SYSTEM-SIDE 16SOIC
其它名称: 336-1167
Si2401
32
Rev. 1.0
Table 18. Low-Level DSP Parameters
DSP Reg. Addr.
Name
Description
Function
Default
(dec)
0x0002
XMTL
DAA modem full-scale transmit level,
default = –10 dBm.
Level = 20log10 (XTML/4096)
–10 dBm
4096
0x0003
DTML
DTMF high-tone transmit level,
default = –5.5 dBm.
Level = 20log10 (DTML/4868)
–5.5 dBm
4868
0x0004
DTMT
DTMF twist ratio (low/high),
default = –2 dBm.
Level = 20log10 (DTMT/3277) –
2dB
3277
0x0005
UFRQ User-defined transmit tone frequency. See
register SE5 (SE8=0x02 (Write Only)).
f = (9600/512) UFRQ (Hz)
91
0x0006
CPDL
Call progress detect level (see Figure 5),
default = –43 dBm.
Level = 20log10 (4096/CPDL)
–43 dBm
4096
0x0007
UDFD1 User-defined frequency detector 1. Center
frequency for detector 1.
UDFD1 = 8192 cos (2
π f/9600)
4987
0x0008
UDFD2 User-defined frequency detector 2. Center
frequency for detector 2.
UDFD2 = 8192 cos (2
π f/9600)
536
0x0009
UDFD3 User-defined frequency detector 3. Center
frequency for detector 3.
UDFD3 = 8192 cos (2
π f/9600)
4987
0x000A
UDFD4 User-defined frequency detector 4. Center
frequency for detector 4.
UDFD4 = 8192 cos (2
π f/9600)
536
0x000B
TGNL
Tone generation level associated with
TONC (SE5 (SE8 = 0x02) Write Only Defi-
nition), default = –10 dBm.
Level = 20log10 (TGNL/2896)
– 10 dBm
2896
0x000E
UDFSL Sensitivity setting for UDFD1–4 detectors,
default = –43 dBm.
Sensitivity = 10log10(UDFSL/
4096) –43 dBm
4096
0x0024
CONL
Carrier ON level. Carrier is valid once it
reaches this level.
Level = 20log10(2620/CONL) –
43 dBm
2620
0x0025
COFL
Carrier OFF level. Carrier is invalid once it
falls below this level.
Level = 20log10(3300/COFL) –
45.5 dBm
3300
0x0026
AONL
Answer ON level. Answer tone is valid
once it reaches this level.
Level = 10log10(AONL/107) –
43 dBm
67
0x0027
AOFL
Answer OFF level. Answer tone is invalid
once it falls below this level.
Level = 10log10(AOFL/58) –
45.5 dBm
37
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