CH1817ET 查看數據表（PDF） - Unspecified

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CH1817ET

Family of Low Profile DAA Modules

Unspecified 

Cermetek Microelectronics, Inc.

CH1817 Family of Low Profile DAA Modules

Parameter

Table 2. CH1817 DAA Electrical Specifications.

VCC=+5VDC ± 5%, TA=0° to 55°C

Conditions

Min.

Supply Current

Off-Hook

Transmission

Insertion Loss

Receive Gain

Off-Hook

Attenuation between transmit input and telephone line at

1800Hz with 600Ohm termination:

CH1817-L measured XMIT(+) with respect to GND

9.0

CH1817-DM measured XMIT(-) with respect to XMIT(+) 6.0

CH1817-LM measured XMIT(+) with respect to GND

6.0

CH1817-D measured XMIT(-) with respect to XMIT(+)

-0.5

Gain between telephone line and receive output at -0.5

1800Hz with 600Ohm termination

Telephone Line

Input Impedance

Trans-Hybrid Loss

At 1800Hz

550

Attenuation between the transmitter input and receiver 18

output at 1800Hz with 600Ohm termination

Transmit Input

At 1800Hz

120

Impedance

Receive Output

Impedance

At 1800Hz

Ring Detect

AC voltage between Tip and Ring

38

Sensitivity

Ringer Equivalency Type “A”

Number (REN)

Hook Switch Control

Current

Loop current

20

Weight

Typ.

4

0.6

9.5

6.5

6.5

0.0

0.0

600

23

150

100

0.2

4

10

Max. Units

6

mA

1.5 mA

10.0 dBm

7.0 dBm

7.0 dBm

0.5 dBm

0.5 dBm

650 Ohm

dBm

200 kOhm

1000 Ohm

Vrms

A

mA

80

mA

gm

Figure 6. Pin Connections.

2002 Cermetek Microelectronics, Inc.

Page 6

Document No. 607-0007 Revision B (01/02)

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