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LC72722 参数 Datasheet PDF下载

LC72722图片预览
型号: LC72722
PDF下载: 下载PDF文件 查看货源
内容描述: 单芯片的RDS信号与处理系统LSI [Single-Chip RDS Signal-Processing System LSI]
分类和应用:
文件页数/大小: 15 页 / 115 K
品牌: SANYO [ SANYO SEMICON DEVICE ]
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LC72722, 72722M, 72722PM  
Continued from preceding page.  
Ratings  
typ  
Parameter  
Symbol  
Conditions  
FLOUT : f = ±7 kHz  
Unit  
min  
30  
max  
Att1  
Att2  
Att3  
Vref  
VHIS  
dB  
dB  
dB  
V
Stop band attenuation  
FLOUT : f < 45 kHz, f > 70 kHz  
FLOUT : f < 20 kHz  
40  
50  
pull-up resistor used.Reference voltage output  
Hysteresis  
VREF : Vdda = 5 V  
2.5  
CL, DI, CE, SYR, T1, T2  
DO, T3, T4, T5, T6, T7 : I = 2 mA  
SYNC, RDS-ID : I = 8 mA  
CL, DI, CE, SYR, T1, T2 : VI = 6.5 V  
XIN : VI = Vddd  
0.1 Vddd  
V
V
OL1  
OL2  
0.4  
V
Output low-level voltage  
Input high-level current  
Input low-level current  
V
0.4  
5.0  
11  
V
IIH1  
µA  
µA  
µA  
µA  
IIH2  
2.0  
2.0  
IIL1  
IIL2  
CL, DI, CE, SYR, T1, T2 : VI = 0 V  
XIN : VI = 0 V  
5.0  
11  
DO, SYNC, RDS-ID, T3, T4, T5, T6, T7 :  
Output off leakage current  
Current drain  
IOFF  
Idd  
5.0  
µA  
VO = 6.5 V  
Vddd + Vdda  
9
mA  
CCB Output Data Format  
• Each block of output data consists of 32 bits (4 bytes), of which 2 bytes are RDS data and 2 bytes are flag data.  
• Any number of 32-bit output data blocks can be output consecutively.  
• When there is no data that can be read out in the internal memory, the system outputs blocks of all-zero data  
consecutively.  
• If data readout is interrupted, the next read operation starts with the 32-bit data block whose readout was interrupted.  
However, if only the last bit remains to be read, it will not be possible to reread that whole block.  
• The check bits (10 bits) are not output.  
• The data valid/invalid decision is made by referencing the error information flags (E0 to E2) must not be referred to.  
• When the first leading bits are not "1010", the read in data is invalid, and the read operation is cancelled.  
CCB address 6C  
B
0
B
1
B
2
B
3
A
0
A
1
A
2
A
3
DI  
0
0
1
1
0
1
1
0
Output data/first bit  
Last bit  
O
R
F
1
R
F
0
A
R
I
S
Y
C
D
1
5
D
1
4
D
1
3
D
1
2
D
1
1
D
1
0
B
2
B
1
B
0
R
E
E
2
E
1
E
0
D D D D D D D D D D  
1
0
1
0
DO  
W
9
8
7
6
5
4
3
2
1
0
D
(8) RDS data  
(7) Error information flags  
(6) Synchronization established flag  
(5) ARI (SK) detection flag  
(4) RAM data remaining flag  
(3) Consecutive RAM read out possible flag  
(2) Offset word information flag  
(1) Offset word detection flag  
Fixed pattern (1010)  
1. Offset word detection flag (1 bit): OWD  
OWD  
Offset word detection  
Detected  
1
0
Not detected (protection function operating)  
No. 5602-5/15  
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