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參數(shù)資料
| 型號： | CH1840 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Low Profile Data Access Arrangement (DAA) Modules |
| 中文描述： | 超薄數(shù)據(jù)訪問安排（DAA）模塊 |
| 文件頁數(shù)： | 6/7頁 |
| 文件大?。?/td> | 432K |
| 代理商： | CH1840 |
2000 Cermetek Microelectronics, Inc.
Page 6
Document No. 607-0011 Rev. A (5/00)
Table 2
CH1840 DAA Electrical Specifications
T
A
= 0oC to 55oC unless otherwise specified
Extended Temperature (ET) versions available to T
A
= -40oC to +85oC
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNITS
LOGIC
Input high
Input low
Input leakage high
Input leakage low
Output high
Output low
V
IH
V
IL
I
IH
I
IL
V
OH
V
OL
I
OH
= 0.2mA
I
OL
= 2.0mA
3.0
-0.3
3.0
0
3.5
0.2
5.0
0.8
500
-500
5.3
0.4
V
V
uA
uA
V
V
Telephone Line Interface AC
Impedance
Z
LINE
600
Ohms
Isolation Protection
Conforms to FCC Part 68 hazardous voltage and
leakage
1K
V
RMS
Surge Protection
Conforms to FCC Part 68 for surge
800
Vpeak
Transmit Level
V
TRX
Measure at XMIT, 1800 Hz
CH1840
(Voice Mode) CH1840D
0.774
0.251
V
RMS
V
RMS
Transmit Insertion Loss
G
TRX
1800 Hz, 600 Ohms, 35mA loop current
CH1840
(Voice Mode)
CH1840D
9.5
-0.5
10
0.0
10.5
0.5
dB
dB
Receive insertion Gain
G
RCV
1800 Hz, 600 Ohms, 35mA loop current
-0.5
0
+0.5
dB
Trans-hybrid loss
G
TH
600 Ohms +3% between TIP & RING
600 Hz to 4000 Hz
18
23
dB
On-Hook Impedance
Z
ONHK
OFFHK = 0 volts
10
20
Mohm
Loop Current
I
LOOP
OFFHK = 5 volts
20
80
mA
Receive Output Impedance
Z
RNC
Measured at RCV
50
mA
Transmit Input Impedance
Z
TRX
Measured at XMIT @ 1800 Hz
50
100
Kohm
FCC Registration Number
Supplied on unit label
Ringer Equivalence
REN
Supplied on unit label
0.2A
REN
TIMERS
Ring Detection Delay
Billing Delay Timer
T
RGD
T
BD
Ringing at 40 Hz, 45 V
RMS
2.0
200
2.5
360
3.0
ms
sec
Hook Switch
0.5
1.0
mA
Power Supply Current
I
CH5
+5V ±5% Supply Voltage
Off Hook
On Hook
6
3
10
6
mA
mA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CH1840BET | 制造商:Cermetek Microelectronics 功能描述:Data Access Arrangement 12-Pin |
| CH1840D | 制造商:Cermetek Microelectronics 功能描述:Data Access Arrangement 12-Pin |
| CH1840DET | 制造商:Cermetek Microelectronics 功能描述:Data Access Arrangement 12-Pin |
| CH1840DM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecomm/Datacomm |
| CH1840DMET | 制造商:Cermetek Microelectronics 功能描述:OTHER |
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