LC89057W-VF4A-E Datasheet, PDF (2/59 Pages) Sanyo Semicon Device – Digital Audio Interface Transceiver

LC89057W-VF4A-E
2.2 Outputs various information to make system configuration easy
• Outputs DTS-CD/LD detection flag by DTS sync signal detection.
• Outputs burst preamble Pc from microcontroller interface.
• Calculates sampling frequency of input signal and outputs it from microcontroller interface.
• Outputs interrupt signal for microcontroller (interrupt source can be selected).
• Outputs signal of transitional period switching between VCO clock and oscillation amplifier clock.
• Outputs bit 1 of channel status (non-PCM data detection bit).
• Outputs emphasis information of channel status.
• Outputs renewed flag of the first 48 bits channel status.
• Channel status bit, validity flag and user data output are selectable.
• Outputs modulation/demodulation preamble B information.
• Possible to carry out and output various settings through microcontroller interface.
2.3 Plenty of built-in functions to reduce peripheral circuits
• Includes modulation function that can attach channel status, validity flag, and user data.
• Equipped with a total of 7 digital data input pins: 1 input pin with an amplifier and 6 input pins with 5V tolerable
TTL level signal.
• Possible to monitor input pin status with microcontroller by mounting a bi-phase input data detection function.
• Possible to select input data among 8 system input data including modulation function output.
• Possible to select output of input-data through among 8 system input data aside from selecting demodulation data.
• Includes 2 system bit clock and LR clock outputs. Various frequency-dividing ratios can be set to one of these two
systems.
• Equipped with a serial digital audio data input pin. Possible to switch with demodulation output.
• Possible to modulate the data that is input to the serial digital audio data input pin.
• Includes built-in oscillation amplifier and frequency divider for quartz resonator and also possible to use them as
clock generator.
• Includes 4 bits general-purpose parallel I/O port. It can be used for interface with peripheral ICs.
• All the channel status can be decoded through peripheral circuit using preamble B information.
• A continuous switching operation between external clock synchronous mode and PLL clock synchronous mode is
possible.
• Single 3.3V-power supply operation. TTL input port supports 5V interface.
• Adopts small SQFP48 package for efficient use of substrate mounting area.
Package Dimensions
unit : mm (typ)
3163B
9.0
7.0
36
25
37
24
48
13
1
12
0.5
0.18
0.15
(0.75)
SANYO : SQFP48(7X7)
No.7202-2/59