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Mobile FM Multiplex Broadcast Receiver IC
Mobile FM Multiplex Broadcast Receiver IC
with Built-in VICS Decoder
with Built-in VICS Decoder
LC72713W
LC72713W
Overview
The LC72713W is a data demodulation IC for the reception of mobile FM multiplex broadcasts in the DARC
system.
The LC72713W includes a bandpass filter for the extraction of the DARC signal from the FM baseband.
This IC also includes a data circuit for processing VICS data and can implement a compact and highly functional
VICS reception system. The LC72713W features improvements over the circuits included in the LC72710W for
receiving VICS data and dGPS data in a single tuner.
Note that a separate contract with Vehicle Information and Communication Center is required for sample
evaluation of this IC and to manufacture VICS products.
Functions
Adjustment-free SCF based 76 kHz bandpass filter
VICS decoder circuit
MSK delay detection circuit using a 1T delay
Error correction function using a 2T delay (in the MSK detection stage)
Digital PLL based clock regeneration circuit
Shift register type 1T and 2T delay circuits
Block and frame synchronization detection circuits
Function for setting the allowable BIC error count and synchronization protection count
Error correction using (272,190) codes
Layer 4 CRC code checking circuit
Includes the frame memory and memory control circuit required for vertical correction
7.2 MHz crystal oscillator circuit
Two power saving modes (standby and EC stop modes)
Dedicated frame synchronization circuit optimal for simultaneous reception of dGPS and VICS data
Either a CPU parallel interface (DMA) or a CCB serial interface can be used
Supply voltage: 4.5 to 5.5 V
Package: SQFP64 (10
10 mm)
The DARC (Data Radio Channel) FM multiplex broadcast technology was developed by NHK
(Japan Broadcasting Corporation).
DARC is a registered trademark of NHK Engineering Services, Inc. (NHK-ES).
A separate contract with NHK-ES is required for the manufacturer or sale of electronic
equipment that uses DARC technology.
The logo shown here may be used with electronic equipment that uses DARC technology.
Block Diagram
Vddd
LPF
Vssd
1T delay
Clock
regeneration
STNBY
2T delay
RST
7.2MHz
XOUT
LPF
XIN
Vref
Antialiasing
76kHz
MPXIN
filter
BPF
(SCF)
Vdda
Vref
Vssa
65 Car Audio
:CCB is SANYO's original bus format.
All bus addresses are managed by
SANYO for this format.
Error
Synchronization
Timing
correction
regeneration
control
Layer 2 CRC
PN
MSK
decoding
correction
Data
Address
VICS processing
Memory array
Output control (CPU interface) and
layer 4 CRC checking circuit
Mobile FM Multiplex Broadcast Receiver IC
Mobile FM Multiplex Broadcast Receiver IC
with Built-in VICS Decoder
with Built-in VICS Decoder
LC72714W
LC72714W
Overview
The LC72714W is a data demodulation IC for the reception of mobile FM multiplex broadcasts in the DARC
system.
The LC72714W includes a bandpass filter for the extraction of the DARC signal from the FM baseband.
This IC also includes a data circuit for processing VICS data and can implement a compact and highly functional
VICS reception system. The LC72714W features improvements over the circuits included in the LC72710W for
receiving VICS data and dGPS data in a single tuner.
Note that a separate contract with Vehicle Information and Communication Center is required for sample
evaluation of this IC and to manufacture VICS products.
Functions
Adjustment-free SCF based 76 kHz bandpass filter
VICS decoder circuit
MSK delay detection circuit using a 1T delay
Error correction function using a 2T delay (in the MSK detection stage)
Digital PLL based clock regeneration circuit
Shift register type 1T and 2T delay circuits
Block and frame synchronization detection circuits
Function for setting the allowable BIC error count and synchronization protection count
Error correction using (272,190) codes
Layer 4 CRC code checking circuit
Includes the frame memory and memory control circuit required for vertical correction
7.2 MHz crystal oscillator circuit
Two power saving modes (standby and EC stop modes)
Dedicated frame synchronization circuit optimal for simultaneous reception of dGPS and VICS data
Either a CPU parallel interface (DMA) or a CCB serial interface can be used
Supply voltage: 2.7 to 3.6 V
Package: SQFP64 (10
10 mm)
The DARC (Data Radio Channel) FM multiplex broadcast technology was developed by NHK
(Japan Broadcasting Corporation).
DARC is a registered trademark of NHK Engineering Services, Inc. (NHK-ES).
A separate contract with NHK-ES is required for the manufacturer or sale of electronic
equipment that uses DARC technology.
The logo shown here may be used with electronic equipment that uses DARC technology.
Block Diagram
Vddd
LPF
Vssd
1T delay
Clock
regeneration
STNBY
2T delay
RST
7.2MHz
XOUT
LPF
correction
XIN
Vref
Antialiasing
76kHz
MPXIN
filter
BPF
(SCF)
Output control (CPU interface) and
Vdda
layer 4 CRC checking circuit
Vref
Vssa
:CCB is SANYO's original bus format.
All bus addresses are managed by
SANYO for this format.
Error
Synchronization
Timing
correction
regeneration
control
Layer 2 CRC
PN
MSK
decoding
Data
Address
VICS processing
Memory array
66 Car Audio
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