CC-2401K2 Page 59 of 66 2007, Copeland Communications, Inc. CC-2401K2 Datasheet Rev 1.5 SF5 (DAA5), DAA Low Level Functions 5 Bit D7 D" />
參數(shù)資料
型號(hào): CC-2401K2A-CS
廠商: Copeland Communications Inc
文件頁(yè)數(shù): 55/66頁(yè)
文件大?。?/td> 0K
描述: MODEM 2400BAUD SECURE 3.3V
標(biāo)準(zhǔn)包裝: 30
數(shù)據(jù)格式: V.21,V.22,V.23,Bell 103
波特率: 2.4k
電源電壓: 3 V ~ 3.6 V
安裝類型: 表面貼裝
封裝/外殼: 模塊
包裝: 散裝
配用: 539-1002-ND - KIT EVALUATION WORLD MODEM II
其它名稱: 539-1010
CC-2401K2A-CS-ND
Data Sheet
CC-2401K2
Page 59 of 66
2007, Copeland Communications, Inc.
CC-2401K2 Datasheet Rev 1.5
SF5 (DAA5), DAA Low Level Functions 5
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
OHS[1:0]
ILIM
RZ
RT
Type
R/W
Reset Settings = 0000_0000 (0x00)
Bit
Name
Function
7:6
Reserved
Read returns zero.
On-Hook Speed
These bits set the amount of time for the line-side device to go on-hook. The on-hook
speeds specified are measured from the time the register is written until loop current
equals zero.
OHS[1:0]
Mean On-Hook Speed
00
Less than 0.5 ms
01
3 ms ± 10% (Meets ETSI standard)
5:4
OHS[1:0]
1X
20 ms ±10% (Meets Australian spark quenching specification)
3
ILIM
Current Limiting Enable.
0 = Current limiting mode disabled.
1 = Current limiting mode enabled. This mode limits loop current to a maximum of 60 mA
per the TBR21 specification.
2
RZ
Ringer Impedance.
0 = Maximum (high) ringer impedance.
1 = Synthesized ringer impedance used to satisfy a maximum ringer impedance
specification in countries, such as Poland, South Africa, and Slovenia.
1
Reserved
Do not modify
0
RT
Ringer Threshold Select.
Used to satisfy country requirements on ring detection. Signals below the lower level do
not generate a ring detection; Signals above the upper level are guaranteed to generated a
ring detection.
0 = 13.5 to 16.5 VRMS
1 = 19.35 to 23.65 VRMS
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