LC72709 Datasheet PDF - Sanyo Semicon Device
| Part Number | LC72709 | |
| Description | FM Multiplex Reception IC for Mobile Systems | |
| Manufacturers | Sanyo Semicon Device | |
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Ordering number : EN5876
CMOS IC
LC72709E, 72709W
FM Multiplex Reception IC for Mobile Systems
Overview
The LC72709E is a data demodulation IC for receiving
FM multiplex broadcasts for mobile receivers in the
DARC format. This IC includes a built-in bandpass filter
that extracts the DARC signal from the FM baseband
signal. Since this IC supports all of the FM multiplex
broadcast frame structures (methods A, A', B, and C) from
the ITU-R recommendations, it is optimal for use in radios
for worldwide use that support FM multiplex reception.
Functions
• SCF-based adjustment-free 76-kHz bandpass filter
• Support for the FM multiplex broadcast frame structures
(methods A, B, and C) using serial data control.
• MSK delay detection circuit based on a 1T delay
• Error correction function based on a 2T delay (in the
MSK detector stage)
• Digital PLL based clock regeneration circuit
• Shift-register type 1T and 2T delay circuits
• Block and frame synchronization detection circuit
• Function for setting the number of allowable BIC errors,
the number of synchronization protection.
• Error correction using (272, 190) codes
• Layer 4 CRC code checking circuit
• On-chip frame memory and memory control circuit for
vertical correction
• 7.2-MHz crystal oscillator circuit
• Two power saving functions (Standby and EC stop)
Package Dimensions
unit: mm
3148-QIP44MA
[LC72709E]
unit: mm
3190-SQFP64
[LC72709W]
SANYO: QIP44MA
• CCB is a trademark of SANYO ELECTRIC CO., LTD.
• CCB is SANYO’s original bus format and all the bus
addresses are controlled by SANYO.
SANYO: SQFP64
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
71598RM (OT) No. 5876-1/16
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Continued from preceding page.
Pin No.
LC72709E LC72709W Pin Name
LC72709E, 72709W
Function
I/O
35 51
VREF
Reference voltage output (Vdda/2)
Output
Circuit type
37 54
34 50
2, 10, 24 3, 14, 35,
11,23, 43 15, 34, 62
VDDA
VSSA
VDDD
VSSD
Analog system power supply
Analog system ground
Digital system power supply (4.5 to 5.5 V)
Digital system ground
1, 4, 8,
12, 16,
17, 21,
25, 28,
–
32, 33,
37, 41,
45, 48,
49, 53,
56, 60,
64
NC Not connection
Note: A capacitor of at least 2000 pF must be inserted between VDDD and VSSD when using this IC.
Data I/O Techniques
—
—
—
—
• CCB Technique
Sanyo audio ICs input and output data using the Sanyo CCB (computer control bus) standard, which is a serial bus
format. This IC uses an 8-bit address CCB and uses the following addresses.
Address
I/O mode
B0 B1 B2 B3 A0 A1 A2 A3
Function
Input
0 1 0 1 1 1 1 1 16-bit control data input
Output
1 1 0 1 1 1 1 1 Data output for the input clock (CL)
Input
0 0 1 1 1 1 1 1 Data input (in 8-bit units) for the layer 4 CRC check circuit
• Data Input Timing
• Data Output Timing
Internal data latching
A10595
A10596
Note:The DO pin is normally left open.
Since the DO pin is an n-channel open drain pin, the time required for the data to change from the low level to the high level depends on the value of
the pull-up resistor.
No. 5876-5/16
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LC72709 electronic component. |
| Information | Total 16 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LC72709.PDF Datasheet ] | |
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