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参数资料
| 型号： | LC72722 |
| 厂商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP24 |
| 封装： | SDIP-24 |
| 文件页数： | 2/15页 |
| 文件大小： | 114K |
| 代理商： | LC72722 |
No. 5602-10/15
LC72722, 72722M, 72722PM
These pins indicate the number of blocks in a set of 48 blocks that had errors before correction. The output polarity of these pins is fixed at the values
listed in the table.
Mode 4
Pin T6 (BE1)
Pin T7 (BE0)
Number of error blocks (B)
B = 0
Low (0)
1
≤ B ≤ 20
Low (0)
High (1)
20 < B
≤ 40
High (1)
Low (0)
40 < B
≤ 48
High (1)
Caution: The output indicates the synchronization state for the previous block.
Mode (PT2 = 0)
The SYNC pin
0 to 2
When synchronized: Low (0). When unsynchronized: High (1)
When synchronized: Goes high for a fixed period (421 s) at
3
the start of a block and then goes low.
When unsynchronized: High (1)
When PT2 = 0
The RDS-ID pin
No RDS
High (1)
RDS present
Low (0)
11. Test mode settings (4 bits): TS0 to TS3
Initial values: TS0 = 0, TS1 = 0, TS2 = 0, TS3 = 0
(Applications must set these bits to the above values.)
Notes: The T1 and T2 pins (pins 7 and 8) are related to test mode as follows:
The T1 pin must be tied to VSS (0 V).
Initial values: CT0 = 0, CT1 = 0
Pin T1
Pin T2
LSI operation
Notes
0
Normal operating mode
These states are user settable
0
1
Standby mode (crystal oscillator stopped)
1
0/1
LSI test mode
Users cannot use this state
12. Circuit control (2 bits): CT0 and CT1
Item
Control
CT0
RSFT control
When set to 1, soft-decision control data (RSFT) is more difficult to generate.
CT1
RDS-ID detection condition
When set to 1, the RDS-ID detection conditions are made more restrictive.
RDCL/RDDA/RSFT and ERROR/CORREC/SYNC Output Timing
Timing 1
17
s
421
s 421 s
Tp2
Tp1
17
s
RDCL output
RSFT output
RDDA output
A12377
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LC72722M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System LSI |
| LC72722PM | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System LSI |
| LC72722PM_12 | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System IC |
| LC72722PM-MPB-E | 功能描述:音频 DSP RoHS:否 制造商:Texas Instruments 工作电源电压: 电源电流: 工作温度范围: 安装风格: 封装 / 箱体: 封装:Tube |
| LC72722PMS | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System IC |
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