- 您现在的位置：买卖IC网 > PDF目录30775 > LV1605M SPECIALTY CONSUMER CIRCUIT, PQFP64 PDF资料下载
参数资料
| 型号： | LV1605M |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP64 |
| 封装： | 14 X 14 MM, QIP-64 |
| 文件页数： | 3/24页 |
| 文件大小： | 262K |
| 代理商： | LV1605M |
No. 7809-11/24
LV1605M
Focus judgment
The pickup is judged to get in focus when the Scurve reaches the REF level after the level REF + 0.2 V has been
detected in the focus error signal Scurve.
Disc defect detection
The mirror surface detection level is held by the capacitor connected to LF2 (pin 56), and a high level is output from
DEF (pin 46) if the dropout level in the EFM signal (RFSM output) rises above 0.35V. When DEF (pin 46) goes high,
the tracking servo goes to THLD mode. To prevent the tracking servo from going to THLD mode when a disc defect
is detected, either short DEF (pin 46) or short LF2 (pin 56) to ground. This prevents the DEFECT output from being
issued.
Microcontroller interface
Since the Reset (Nothing) command initializes the LV1605M, it must be used with care. The LV1605M's command
acceptance (mode switching) timing is such that the mode switches on the (130kHz) clock cycle following the CE
(RWC) falling edge. Therefore, a low-level period in the CE signal of at least 10 s is required when issuing
consecutive commands. The 130kHz clock is required for this reason. The various LV1605M instructions can be
issued by setting CE high and then, in synchronization with the CL clock, issuing the command from the
microcontroller, LSB first, to DAT (pin 42). Note that commands are executed starting at the fall of the CE signal.
Timing Chart
Point where focus
is achieved
REF+0.2V
A13936
EFM signal
LF2(Pin 56)
DEF(Pin46)
(RFSM output)
0.35V
A13937
CE(RWC)
CL(CQCK)
DAT(COIN)
* Items in parentheses are DSP pin names.
LSB
MSB
A13938
相关PDF资料 |
PDF描述 |
|---|---|
| LV23000M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PDSO36 |
| LV23002M | 2-BAND, AUDIO TUNER, PDSO36 |
| LV23002M | 2-BAND, AUDIO TUNER, PDSO36 |
| LV23014T | AUDIO TUNER, PDSO36 |
| LV23015T | SPECIALTY CONSUMER CIRCUIT, PDSO36 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LV163A | 制造商:TI 制造商全称:Texas Instruments 功能描述:4BIT SYNCHRONOUS BINARY |
| LV164A | 制造商:TI 制造商全称:Texas Instruments 功能描述:8-BIT PARALLEL-OUT SERIAL SHIFT REGISTERS |
| LV165A | 制造商:TI 制造商全称:Texas Instruments 功能描述:PARALLEL-LOAD 8-BIT SHIFT REGISTERS |
| LV1701 | 制造商:KNOX 制造商全称:KNOX 功能描述:HF HYPERABRUPT TUNING DIODES |
| LV1702 | 制造商:KNOX 制造商全称:KNOX 功能描述:HF HYPERABRUPT TUNING DIODES |
发布紧急采购，3分钟左右您将得到回复。