72720YV Datasheet, PDF (5/14 Pages) Sanyo Semicon Device – Single-Chip RDS Signal-Processing System IC

LC72720Y, 72720YV
Continued from preceding page.
Parameter
Group delay deviation
Reference voltage output
Hysteresis
Output low-level voltage
Input high-level current
Input low-level current
Output off leakage current
Current drain
Symbol
Conditions
G-Delay
Vref
V_HIS
V_OL1
V_OL2
I_IH1
I_IH2
I_IL1
I_IL2
I_OFF
IDD
FLOUT: f = 57 ± 1.2 kHz
VREF : Vdda = 3.3 V
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 : V_I = Vddd
XIN : V_I = Vddd
CL, DI, CE, SYR, T1, T2 : V_I = 0 V
XIN : V_I = 0 V
DO, SYNC, RDS-ID, T3, T4, T5, T6, T7 :
V_O = 6.5 V
Vddd + Vdda, Vddd = Vdda = 3.3 V
Ratings
min
typ
1.65
0.1 Vddd
0.9
0.9
6
Unit
max
± 2.0
μs
V
V
0.5
V
0.5
V
5.0
μA
4.0
μA
5.0
μA
4.0
μA
5.0
μA
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 is remaining 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 flag (E0 to E2) but the offset word
detection flag (OWD) 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
B0 B1 B2 B3 A0 A1 A2 A3
DI
00110110
Output data/first bit
Last bit
DO
1 0 1 0 OWD B2 B1 B0 RE RF1 RF0 ARI SYC E2 E1 E0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
(1) Offset word detection flag (1 bit): OWD
OWD
1
0
Offset word detection
Detected
Not detected (protection function operating)
(8) RDS data
(7) Error information flags
(6) Synchronization established flag
(5) ARI (SK) detection flag
(4) RAM data remaining flags
(3) Consecutive RAM read out possible flag
(2) Offset word information flags
(1) Offset word detection flag
Fixed pattern (1010)
A13207
No. 6488-5/14