Appendix B
Input/Output Connectors and Ports
B-7
B.6.4
Microphone Connector
FIGURE B-10
Microphone Connector
This connector is used to connect the SunMicrophone™™ II (or other suitable
microphone) to the system.
Note –
The SPARCstation 4 microphone port accepts stereophonic input; however,
the SunMicrophone II is a monophonic device. Note also that the older
SunMicrophone is not compatible with the SPARCstation 4 system.
B.6.5
Audio Specifications
TABLE B-7
lists the SPARCstation 4 Audio Module stereo connections and their
specifications,
and
TABLE B-8
lists the internal speaker specifications.
1.These specifications assume you are using the Audio Module with the
Audio Tool
format setting “CD-ROM or DAT” selected.
TABLE B-7
Audio Module Inputs and Outputs
Module Stereo Inputs/Outputs
Specifications
1
Line In
Frequency Response
2 V typical, 4 V maximum; 5 to 50 k-ohm impedance 20 Hz to
17 kHz 0.5dB
Internal CD Input
2
:
Input Level
Distortion
S/N Ratio
Frequency Response
0.1 Vrms typical at 10 k-ohm; 2 Vpp maximum
0.01%, typical at 1 kHz
84 dB, typical IEC 179 A-weighted
20 Hz to 17 kHz 0.5dB
Microphone Input
3
15 mV typical, 0.6 to 1 k-ohm impedance;
+5 Vdc input bias via a 2.2 k-ohm resistor
Headphones Output
1 V typical, 2.4 V maximum;
16 -ohm to 1 k-ohm impedance
Line Out
1 V typical, 2.4 V maximum; 5 to 50 k-ohm
impedance
Summary of Contents for SPARCstation 4
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