Hitachi DV-P345E, Руководство по обслуживанию

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Letterbox and Pan-scan display aspect ratio conversion (16:9 to 4:3)
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Automatic frame rate conversion (e.g., 3/2 pull down) and format conversion (16:9, 4:3, 1:1).
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EIA-608 compatible modulation of line 21 (NTSC) or line 22 (PAL) closed captions data over
the video output.
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Edge adaptive, two fields, de-interlacing generating a progressive analog video output.
Interfaces
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8-bit YUV 4:2:2 digital interlaced video output.
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Composite, Y/C, YUV or RGB interlaced analog video output or component progressive
analog video output (using 10 bits on-chip DACs)
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Internally generated video sync signals and internally generated audio port clock signals.
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6/18/20/24-bit I2S or EIAJ serial audio outputs. 16 bit I2S EIAJ serial audio input
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2 to 8 channels audio output. 2 channels audio input
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S/PDIF output for compressed audio (including DTS) or reconstructed audio (according to
IEC 958 and its extensions).
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Single 64-Mbit, single 16-Mbits and dual 16 Mbits SDRAMs (16 bits data)
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Direct interface (through RF and servo amplifiers) to several types of disc loaders.
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SW controlled GPIO to interface to IR remote control receiver, front panel concentrator, audio
DACs and ADC, etc.’, e.g. using I2C, SPI and other protocols.
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3 line serial general purpose slave interface (SSC)
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2 UART interfaces for CPU SW debug
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JTAG interfaces for CPU, ADP and DSP SW debug
Physical Features
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Dual supply: 1.8V for the core and PLL, and 3.3V for the I/O and DACs.
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208 pin, PQFP package.
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TTL I/O levels. 5V tolerance on many inputs.
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Single 27MHz crystal/clock input.
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5 layer metal, 0.18 micron technology.
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Less than 1.6 W power consumption during operation.
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Several power-down modes
1.2 M
EMORY
1.2.1 SDRAM Memory Interface
The ZR36768 provides 16-bit interface to DRAM memory devices used as OSD, MPEG
stream and video buffer memory for a DVD player. The maximum amount of memory supported
is 8 MB of Synchronous DRAM (SDRAM). The memory interface is configurable in depth to
support 64-Mb addressing.
1.3 D
RIVE
I
NTERFACES
The ZR36768 supports d irect interface (through RF and servo amplifiers) to several types
of disc loaders.
1.4 F
RONT
P
ANEL
The front panel is based around a Futaba VFD and a Princeton front panel controller
chip, (PT6311). The ZR36768 controls the PT16311 using several control signals, (clock, data,
chip select). The infrared remote control signal is passed directly to the ZR36768 for decoding.
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