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EN 4
1.
SD-5.31SL
1.3.10 27MHz clock
Function
Signal
Type
Note: This VCLK pin has dual functionality. It provides 27 Mhz
when Digital video output is used & as
This VCLK pin has dual functionality. It provides 27 Mhz when
Digital video output is used & as an input for PCM_CLK when
ext. I2S is used. Option jumpers are provided.
Exercise caution when connecting to this line; excessive
loading can cause noise and increase jitter levels & degrade
the quality of SPDIF and I2S signals.
1.3.11 Service bus
Function
Signal
Type
1.3.12 Service activation
Function
Signal
Type
Table 1-5
Function
SERVICE
Service mode LOW (or pulled to ground)
Normal mode
HIGH (or unconnected)
Note: This line is pulled to HIGH via 10kohm resistor. A module
reset is required to activate service mode.
1.4
Audio Format (I2S)
Function
Signal
Additional 2 channels
Sampling rate
Decoding
Copy protection
Technical Specifications
: Output a 27MHz clock
signal
: VCLK
: LVTTL output
(100ohm output
resistor, in series)
: Service and
diagnostic bus
: TXD_SER,
RXD_SER
: RS232_COMP
(TXD_SER output,
RXD_SER input)
: To activate service/
diagnostic mode
: SERVICE
: LVTTL input
: Digital audio
: DA_XCK, DA_BCK,
DA_LRCK,
DA_DATA0,
DA_DATA1, DA_A
: downmixed stereo/
LtRt - optional
: MPEG-1, MPEG-2,
Dolby Digital, DTS
and DVD-Audio up to
192 kHz
: MPEG-1 and -2,
Layers I, II, and III
(MP3); MPEG-2 5.1;
: Dolby Digital Class A;
MLP; DTS; Dolby Pro
Logic; HDCD
: CPPM for
prerecorded media
(DVD-audio)
: CPRM for recordable
media (DVD-audio)
1.4.1
Analog video performance
The video output standard follows the source material. The
OSD can be switched between PAL and NTSC.
The module has 6 analog video outputs in 4 format: CVBS, Y/
C, and RGB (YUV). However, depending on the module
configuration, not all output can be available at the same time.
Table 1-6
Signal name
CVBS_VID
Y_VID, C_VID
R_VID (V) / G_VID (Y) / B_VID (U)
1.4.2
Option Jumpers:
J1, J2 & J3 hard select the required video output on Connector
1800. Alternatively, pre-determined Software setting, via slash
option, is also possible. DAC's that are not in used should be
turned off.
Note: RGB and YUV component video signals shared the
same lines. Therefore, the module is not able to output both
RGB and YUV at the same time.
Superimposed DC level
Output impedance
Signal-to-noise ratio
Video bandwidth
Copy protection
: Watermark detect and
decode for DVD-
audio
Video format
CVBS
Y/C
RGB (YUV)
: 1.2V
: 75ohm
: better than 65dB
: 8MHz (± 3dB) /
16MHz (± 3dB) for
progressive scan
: CSS
: Macrovision Version
7.1.L.1 for NTSC/PAL
interlaced video
outputs
: Macrovision AGC
1.03 for 480P
progressive scan
video output
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