DVSR CODEC

17

MX802

1998 MX-COM, Inc.

www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054

Doc. # 20480033.008

4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA

All trademarks and service marks are held by their respective companies.

5

Application – Codec Performance

Input 0 dB Ref. = 308 mVrms

Input Level = -20 dB

Sample Rates=16, 32or63kbps

Gain (dB)

Frequency (kHz)

+10

0

-10

-20

-30

-40

-50

-60

0.2

1

2

3

4

56

0dB

Figure 5: Typical Overall;; (Encoder + Decoder) Frequency Response

SINAD

(dB)

Input Level (dB)

Input Frequency = 1.0 kHz

0 dB ref. = 308 mVrms

25 kbps

32 kbps

50 kbps

64 kbps

30

20

10

-30

-24

-18

-12

-6

0

Figure 6: SINAD vs. Input Level at Different Sample Rates