CC-2401K2 Page 60 of 66 2007, Copeland Communications, Inc. CC-2401K2 Datasheet Rev 1.5 SF6 (DAA6), DAA Low Level Functions 6 Bit D7 D" />
參數(shù)資料
型號: CC-2401K2A-CS5
廠商: Copeland Communications Inc
文件頁數(shù): 57/66頁
文件大小: 0K
描述: MODEM 2400BAUD SECURE 5V
標準包裝: 30
數(shù)據(jù)格式: V.21,V.22,V.23,Bell 103
波特率: 2.4k
電源電壓: 4.2 V ~ 7 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: 539-1009
CC-2401K2A-CS5-ND
Data Sheet
CC-2401K2
Page 60 of 66
2007, Copeland Communications, Inc.
CC-2401K2 Datasheet Rev 1.5
SF6 (DAA6), DAA Low Level Functions 6
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Name
MINI[1:0]
DCV[1:0]
ACT[3:0]
Type
R/W
Reset Settings = 1111_0000 (0xF0)
Bit
Name
Function
Minimum Operation Loop Current.
Adjusts the minimum loop current at which the DAA can operate. Increasing the minimum
operational loop current can improve signal headroom at a lower TIP/RING voltage.
MINI[1:0]
Minimum Loop Current
00
10 mA
01
12 mA
10
14 mA
7:6
MINI[1:0]
11
16 mA
TIP/RING Voltage Adjust.
These bits adjus t the TIP/RING voltage on the line. Low voltage countries should use a
lower TIP/RING voltage. Raising the TIP/RING voltage can improve signal headroom.
DCV[1:0]
DCT Pin Voltage
00
3.1 V
01
3.2 V
10
3.35 V
5:4
DCV[1:0]
11
3.5 V
AC Termination Select.
ACT[3:0]
AC Termination
0000
Real 600 ? termination that satisfies the impedance
requirements of FCC part 68, JATE, and other countries.
0011
Global complex impedance. Complex impedance that satisfies
global impedance requirements EXCEPT New Zealand. May
achieve higher return loss for countries requiring complex ac
termination.
[220 ? + (620 ? || 120 nF) and 220 ? + (820 ? || 115 nF)].
0100
Complex impedance for use in New Zealand.
[370 ? + (620 ? || 310 nF)]
3:0
ACT[3:0]
1111
Complex impedance that satisfies global impedance requirements.
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