Product Information

System Unit Rear Panel Connectors

Built-in mono speaker

Audio CODEC Crystal CS4215

Table 4 summarizes the audio electrical specifications for the Model C160/ C180/C200/C240 workstations.

Table 4

Audio Electrical Specifications

 

 

 

 

 

Frequency Response

25-20,000Hz

 

 

 

 

Input Sensitivity/Impedance

 

 

Line Out

2.0Vpk/47k ohm

 

Microphone

22mVpk/1k ohm

 

 

 

 

Max Output Level/Impedance

 

 

Line Out

2.8Vpp/47k ohm

 

Headphone

2.75Vpp/50 ohm

 

Speaker

5.88Vpp/48 ohm

 

 

 

 

Output Impedance

 

 

Line Out

619 ohm

 

Headphone

118 ohm

 

 

 

 

Signal to Noise

 

 

Line Out

65 dB

 

Headphone

61 dB

 

Speaker

63 dB

 

Line In

61 dB

 

Microphone

57 dB

 

 

 

 

THD (w nominal load)

 

 

Line Out

-73 dB

 

Headphone

-70 dB

 

Speaker

-68 dB

 

Line In

-75 dB

 

Microphone

-73 dB

 

 

 

 

To convert from dB to number of significant bits, use the

 

formula: n=dB/20 log10 = dB/6. For example, for 61dB

 

S/N then n=61/6 10 significant bits, or in other words,

 

about 6 bits of noise.

 

 

 

 

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