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參數(shù)資料
| 型號(hào)： | LC72722 |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | Single-Chip RDS Signal-Processing System LSI |
| 中文描述： | 單芯片發(fā)展策略的信號(hào)處理系統(tǒng)LSI |
| 文件頁(yè)數(shù)： | 10/15頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | LC72722 |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)當(dāng)前第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)
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
1
≤
B
≤
20
20 < B
≤
40
40 < B
≤
48
Low (0)
Low (0)
Low (0)
High (1)
High (1)
Low (0)
High (1)
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 μs) at
the start of a block and then goes low.
When unsynchronized: High (1)
3
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 V
SS
(0 V).
Initial values: CT0 = 0, CT1 = 0
Pin T1
Pin T2
LSI operation
Notes
0
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
μ
s
421
μ
s 421
μ
s
Tp2
Tp1
17
μ
s
RDCL output
RSFT output
RDDA output
A12377
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| LC72722M | Single-Chip RDS Signal-Processing System LSI |
| LC72722PM | Single-Chip RDS Signal-Processing System LSI |
| LC72723 | RDS Demodulation IC |
| LC72723M | RDS Demodulation IC |
| LC72725KM | CMOS IC RDS(RBDS) Demodulation IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LC72722M | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System LSI |
| LC72722PM | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System LSI |
| LC72722PM_12 | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System IC |
| LC72722PM-MPB-E | 功能描述:音頻 DSP RoHS:否 制造商:Texas Instruments 工作電源電壓: 電源電流: 工作溫度范圍: 安裝風(fēng)格: 封裝 / 箱體: 封裝:Tube |
| LC72722PMS | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Single-Chip RDS Signal-Processing System IC |
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