lc89170m Sanyo Semiconductor Corporation, lc89170m Datasheet
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lc89170m
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lc89170m Summary of contents
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... Ordering number : EN*5536A Preliminary Overview The LC89170M that decodes the text data, such as song names, stored in subcode channels compact disk’s read-in area. Features • Accepts the channel subcode data through a subcode interface. • Can continuously output the channel data for each 1PACK24 symbol. • ...
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... EXCK I/O setting (L: clock output, H: clock input) 10 SW2 I EXCK clock output pulse width selection (L: double speed support, H: normal speed) 11 SCLK I Command interface shift clock input 12 SRDT O Command interface data output 13 DQSY O Command interface readout enable output 14 V Power supply DD LC89170M Function No. 5536-2/8 ...
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... The MCK pin AC Characteristics ( –30 to +70°C, V Parameter Symbol High-level pulse width t WH Low-level pulse width t WL Pulse period t C Rise and fall times LC89170M = 4 Conditions min 0 0 –2 3 ...
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... Readout period t CW DQSY pulse width t W SCLK low-level pulse width t WL SCLK high-level pulse width t WH SCLK delay time t D1 Data delay time t D2 Data delay time t D3 LC89170M = 3 Symbol Conditions 3 Symbol Conditions t [SW1] = [L] ...
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... SW1 sets the input or output state for the EXCK pin. This pin is provided for cases where a subcode interface shift clock source, such as a CD-G decoder circuit, is present in the vicinity of the LC89170M. Figure 2 shows usage examples. The SW2 is selected according to the subcode block period, TB, input to the SCOR pin. ...
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... The lower boxes indicate the relationship with MCK (T • Microcontroller interface The LC89170M includes a 32-word 8-bit dual-port RAM on chip, and the 1PACK 24 symbols from subcode channels can be read out once every 3.3 ms (or once every 1.66 for double-speed playback) over the microcontroller interface ...
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... Synchronizing signal interpolation and protection Although the LC89170M receives data from the DSP over the subcode interface possible that due to reasons such as defects or damage to the disk, errors may occur in the synchronization pattern (SO, SI) making the LC89170M unable to detect that synchronization pattern signal that is not a synchronizing signal (SCOR) may be recognized as a synchronizing signal making the LC89170M unable to correctly read out the data ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of September, 1996. Specifications and information herein are subject to change without notice. LC89170M No. 5536-8/8 ...