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LC72700E の電気的特性と機能

LC72700EのメーカーはSanyo Semicon Deviceです、この部品の機能は「Mobile FM Multiplex Broadcast Receiver LSI」です。


製品の詳細 ( Datasheet PDF )

部品番号 LC72700E
部品説明 Mobile FM Multiplex Broadcast Receiver LSI
メーカ Sanyo Semicon Device
ロゴ Sanyo Semicon Device ロゴ 




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LC72700E Datasheet, LC72700E PDF,ピン配置, 機能
Ordering number : EN4870E
CMOS LSI
LC72700E, LC72700G
Mobile FM Multiplex Broadcast Receiver LSI
Overview
The LC72700E and LC72700G are data decoder LSIs for
receiving DARCTM mobile FM multiplex broadcasts. A
multi-function, compact, adjustment-free system can be
implemented in two chips by combining this LSI with the
LV3400M band-pass filter IC, which extracts the
multiplex components from a composite FM signal.
Functions and Features
• Delay detection scheme using a 1T delay
• Built-in error correction function using a 2T delay
• Digital PLL clock regeneration
• Block and frame synchronization detection with a
settable synchronization protection count
• Settable block identifier code (BIC) detection precision
• Error correction using (272,190) codes
• Built-in frame memory for product codes
• Support for both serial and parallel data I/O
• Package
LC72700E: QFP48E
LC72700G: QFP48G
• 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.
Package Dimensions
unit: mm
3156-QFP48E
[LC72700E]
unit: mm
3229-QFP48G
[LC72700G]
SANYO: QFP48E
SANYO: QFP48G
Specifications
Absolute Maximum Ratings at Ta = 25°C
Parameter
Maximum supply voltage
Input voltage
Output voltage
Output current
Allowable power dissipation
Operating temperature
Storage temperature
Symbol
VDD max
VIN1
VIN2
VOUT1
VOUT2
IOUT
Pd max
Topr
Tstg
Conditions
VDD
CL, CE, and DI pins
Input pins other than VIN1
DO pin
Output pins other than VOUT1
BCLOCK, FCLOCK, and DO pins
Ta 85°C
Ratings
–0.3 to +7.0
–0.3 to +7.0
–0.3 to VDD + 0.3
–0.3 to +7.0
–0.3 to VDD + 0.3
0 to 4.0
400
–40 to +85
–55 to +125
Unit
V
V
V
V
V
mA
mW
°C
°C
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110 JAPAN
63097HA (OT)/D3095HA (OT)/D1594TH (OT) No.4870-1/14

1 Page





LC72700E pdf, ピン配列
Block Diagram
LC72700E, LC72700G
MSK signal
input
1T delay
2T delay
Clock
regeneration
MSK error
correction
Demodulation
block
Error
correction
block
Synchronization
regeneration
Timing
control
Error
correction
PN
decoding
Output control
(CPU interface)
Data
Address
Memory cell
Pin Assignment
(Serial I/O)
(Parallel I/O)
No. 4870-3/14


3Pages


LC72700E 電子部品, 半導体
LC72700E, LC72700G
4. Serial Control Data Input Setting Values
The input data consists of 16 bits (DI0 to DI15) of which the upper 8 bits (DI8 to DI15) are the control address
and the lower 8 bits (DI0 to DI7) are the input data.
Register
Allowed error count
Block error protection count
Frame error protection count
Error correction initial
threshold value
Readout (output) block number
Address
DI11 DI10 DI9
0 00
0 00
0 01
0 01
0 10
DI8
Upper 4 bits
0
Lower 4 bits
Upper 4 bits
1
Lower 4 bits
Upper 4 bits
0
Lower 4 bits
Upper 5 bits
1
Lower 3 bits
0 0 to 189 (8 bits)
Data
Back allowed errors
Forward allowed errors
Back protection count
Forward protection count
Back protection count
Forward protection count
Initial threshold value
Default setting
2
2
1
7
1
7
7
0
Note: 1. The data in address bits DI12 to DI15 is ignored.
2. The value of the data sent to set the protection count must be one less than the desired protection count. In the default example shown above, the
block forward protection count will be 8 and the frame back protection count will be 2. When the value is set to 0, the protection count will be 1.
Since a protection count of 0 is meaningless the LSI ignores this value.
3. The initial threshold value is the initial value used when executing error correction at a variable threshold. There is no need to change this value
unless some special experiment is being performed. The threshold value can be set to a value from 9 to 15 according to a three-bit field. Therefore
a data value of 7 sets the threshold value to 15 and a data value of 1 sets the threshold value to 9.
4. The readout block number is transferred when the skip function is used.
5. Addresses other than those listed above (e.g. 0101) are special addresses unique to this LSI and are for test mode and other functions. These
addresses should not be used.
6. The default values are the values loaded into internal registers when a reset signal (RST) is received. These are recommended values and do not
require modification in normal operation. If the default values are used then there will be no need to implement control microprocessor software
that inputs control data.
No. 4870-6/14

6 Page



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共有リンク

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部品番号部品説明メーカ
LC72700

Mobile FM Multiplex Broadcast Receiver LSI

Sanyo Semicon Device
Sanyo Semicon Device
LC72700E

Mobile FM Multiplex Broadcast Receiver LSI

Sanyo Semicon Device
Sanyo Semicon Device
LC72700G

Mobile FM Multiplex Broadcast Receiver LSI

Sanyo Semicon Device
Sanyo Semicon Device


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