DISTORTION

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Signal to Total Distortion

Sinusoidal Test Methode

(measured using C message

weighting Filter)

Level = 0 dBm0 to - 20 dBm0

Level = - 20 to -30 dBm0

Level = - 40 dBm0

Level = - 45 dBm0

37

36

29

24

dBC

dBC

dBC

dBC

Single Frequency Distortion

transmit

0 dBm0 input signal

-46

dB

Single Frequency Distortion

receive

0 dBm0 input signal

-46

dB

IMD

Intermodulation

Loop-around measurament

to -21 dBm0, 2 Frequencies in

the range 300 - 3400 Hz

-41

dB

CROSSTALK

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Transmit to Receive

Transmit Level = 0 dBm0,

f = 300 - 3400 Hz

DR = QuietPCM Code

-65

dB

Receive to Transmit

Receive Level = 0 dBm0,

f = 300 - 3400 Hz

-65

dB

APPLICATION NOTE FOR MICROPHONE CONNECTIONS

The 4 connection modes (since the MIXED MODE is symmetrical with respect to MIC1 and MIC2) allow

ST5080A

30/32