CMX639E2 View Datasheet(PDF) - CML Microsystems Plc

Part Name

Description

MFG CO.

CMX639E2

Consumer / Commercial CVSD Digital Voice Codec

CML Microsystems Plc 

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CVSD Codec

1.7.1.3 Operating Characteristics (continued)

Typical Codec Performance

CMX639

0

Input Level = -15dBmO

Data Clocks = 32kbps

Xtal = 1.024MHz

-10

-20

-30

-40

-50

-60

1

2

3

4

5

6

Frequency (kHz)

Figure 5 Typical Frequency Response (32kbps)

Input Level = -20dB

35

30

64kb/s

25

20

32kb/s

15

10

16kb/s

5

500

1000

1500

2000

2500

3000

3500

Frequency (Hz)

Figure 6 Typical S/N Ratio with Input Frequency

© 2000 Consumer Microcircuits Limited

13

CMX639/2

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