lc89170m Sanyo Semiconductor Corporation, lc89170m Datasheet - Page 5

• Manufacturer Part Number: lc89170m
• Description: Cd Player Text Data Ic
• Manufacturer: Sanyo Semiconductor Corporation

Functional Description
• Subcode interface
The LC89170M accepts subcode data from the DSP using the EXCK, SBSO, SCOR, and WFCK pins. Figure 1 shows
the timing.
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.
SW2 Selection
SW2
[H]
[L]
Supports up to double speed playback
Only supports normal-speed playback
Function
Figure 1 Subcode Interface Timing
Figure 2 SW1 Usage Examples
6.65
13.3
T
B
LC89170M
Unit
ms
ms
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