EMAC PCM-9340F-0CA1, User Manual

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19 Chapter 2 Connecting Peripherals
2.16.2 Extension flat panel connector (CN15)
CN15 consists of a 20-pin connector which is Hirose’s product no.
DF13A-20DP-1.25V. The PCM-9340 supports a 36-bit LCD panel which
must be connected to both the CN19 (40-pin) and the CN15 (20-pin). The
pin assignments for both CN19 and the CN15 can be found in Appendix
C.
2.16.3 Flat panel display connector (CN19)
CN19 consists of a 40-pin connector which can support a 24-bit LCD
panel. It is Hirose’s product no. DF13A-40DP-1.25 V
The PCM-9340 provides a bias control signal on CN19 that can be used
to control the LCD bias voltage. It is recommended that the LCD bias
voltage not be applied to the panel until the logic supply voltage (+5 V or
+3.3 V) and panel video signals are stable. Under normal operation, the
control signal (ENAVEE) is active high. When the PCM-9340’s power is
applied, the control signal is low until just after the relevant flat panel sig-
nals are present.
2.17 Audio interfaces (CN11, CN17) (optional)
The PCM-9340 is equipped with a high-quality audio interface, which
provides 16-bit CD-quality recording and playback as well as OPL3 com-
patible FM music. It is supported by all major operating systems.
2.17.1 Audio connector (CN11)
The PCM-9340 provides all major audio signals on a 16-pin flat-cable
connector, CN11. These audio signals include Microphone in (mono),
Line in (stereo), Line out (stereo), and Speaker out (stereo). If you use tra-
ditional telephone jack connectors for these audio signals, you will need
an adapter cable.
2.17.2 CD audio input connector (CN17)
Any CD-ROM drive can provide analog audio signal output when used as
a music CD player. The CN17 on PCM-9340 is a connector to input CD
audio signals into the audio controller. The audio cable of your CD-ROM
drive will be used to connect to CN17.
2.17.3 Audio power source setting (JP7)
The PCM-9340 is designed to work with a 5 V power supply. The
audio interface can also function normally under 5V power sup-
ply, but most audio controllers require an independent power source gen-
erated from a +12 V power supply. The independent power source avoids
the noise from the other digital circuits. The PCM-9340’s audio interface