CMX867E2 View Datasheet(PDF) - CML Microsystems Plc

Part Name

Description

MFG CO.

CMX867E2

Low Power V.22 Modem

CML Microsystems Plc 

Prev 41 42 43 44 45

Low Power V.22 Modem

CMX867

Transmit Output Level

Modem and Single Tone modes

DTMF mode, Low Group tones

DTMF twist (level of high group tones wrt

low group) setting accuracy

Tx output buffer gain control accuracy

Notes

7

7

Min.

-4.0

-2.0

7

-1.0

7 -0.25

Typ.

-3.0

-1.0

-

-

Max.

-2.0

0.0

+1.0

+0.25

Units

dBm

DBm

dB

dB

Notes:

0

-10

Bell 202

-20

-30

dBm

-40

-50

-60

-70

10

100

1000

10000

100000

Hz

Figure 13 Maximum Out of Band Tx Line Energy Limits (see note 8)

8. Measured on the 2 or 4-wire line using the line interface circuits described in section

1.4.2 with the Tx line signal level set to -10dBm for DPSK, FSK or single tones, -6dBm

and -8dBm for DTMF tones. Excludes any distortion due to external components such as

the line coupling transformer.

© 2004 Consumer Microcircuits Limited

41

D/867/5

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