欧美成人免费电影,国产欧美一区二区三区精品酒店,精品国产a毛片,色网在线免费观看

參數(shù)資料
型號: LC72708E
元件分類: 消費(fèi)家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝: QIP-44
文件頁數(shù): 2/15頁
文件大小: 159K
代理商: LC72708E
Operation During Reset and in Standby Mode
The Reset Signal
A reset operation is performed by holding the RST pin input level under VIL for at least 300 ns when the power-supply
voltage (VDD) is over 3.4 V. (See the figure below.) Applications must apply a reset when power is first applied or
when power is reapplied.
Pin Outputs During a Reset
Low-level outputs: CLK16 (7), DATA (8), FCK (20), BCK (21), FLOCK (22), BLOCK (25), CRC4 (26), IC1 (3),
IC2 (4)
High-level outputs: INT (27), XOUT (1)
Open: DO (31)
Reset Operating Range
The output pin states according to the reset signal are stipulated by item “Pin outputs during a reset” above. The IC
internal flip-flops are all reset. Although the delay shift registers are also reset, the memory array is not influenced.
However, since memory refresh operation stops, data cannot be retained. The crystal oscillator circuit does not stop.
Data Input After a Reset
After a reset completes and at least one full clock cycle (about 278 ns at 3.6 MHz, this is the IC’s main clock) has
elapsed, the serial input control circuit will be able to operate and accept data.
Standby Mode
The IC can be set to standby mode by setting the STNBY pin high. Since all IC operations are stopped in this mode,
this produces a state essentially equivalent to the power off state. (Note that after standby mode has been cleared, a wait
period is required until the crystal oscillator circuit is operating stably.) The pin output states in standby mode are
identical to the states after a reset as described in item “Pin outputs during a reset” above. The internal VICS registers
are also cleared, and the states of the state flags and other bits are not retained.
Notes on Post Error Correction Output Data
The received data is error corrected using (272, 190) codes in single block (272 bits) unit. An error check using the
layer 2 CRC is also performed. After error correction, the IC prepares for transfer of the data to the CPU and outputs
the INT signal. This is referred to as horizontal correction output.
However, the INT signal is not output at this time if the corresponding output data does not meet all of the following
three conditions.
— Error correction completed and it passed the layer 2 CRC check.
— The data was received while both block and frame synchronization were established.
— The data was packet data.
Note that all received packet data can be acquired by setting bit 5 (INT) in the control register.
If the data could not be corrected by the horizontal correction system, correction using product codes is performed in
frame units. This is called vertical correction. The data that can be acquired at the output of the vertical correction is the
following.
— Data that was fully corrected in horizontal correction is not output.
— Packet data that could not be corrected by horizontal correction but that was fully corrected by vertical correction is
output.
— Packet data that could not be corrected by either horizontal or vertical correction is not output.
Note that, as is the case for horizontal correction output, all received packet data can be acquired by setting bit 5 (INT)
in the control register. However, the parity packet data corrected by vertical correction cannot be output even if this flag
bit is set.
No. 5875-10/15
LC72708E
VDD voltage
相關(guān)PDF資料
PDF描述
LC72708E SPECIALTY CONSUMER CIRCUIT, PQFP44
LC72709E SPECIALTY CONSUMER CIRCUIT, PQFP44
LC72709W SPECIALTY CONSUMER CIRCUIT, PQFP64
LC72709E SPECIALTY CONSUMER CIRCUIT, PQFP44
LC72709W SPECIALTY CONSUMER CIRCUIT, PQFP64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LC72709 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:FM Multiplex Reception IC for Mobile Systems
LC72709E 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:FM Multiplex Reception IC for Mobile Systems
LC72709W 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:FM Multiplex Reception IC for Mobile Systems
LC72710 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Mobile FM Multiplex Broadcast DARC Receiver IC with On-Chip VICS Decoder
LC72710LW 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:Mobile FM Multiplex Broadcast DARC Receiver IC with On-Chip VICS Decoder
主站蜘蛛池模板: 临桂县| 鞍山市| 平武县| 新巴尔虎右旗| 都安| 巴林右旗| 衡南县| 贺州市| 萝北县| 沭阳县| 新竹市| 清丰县| 合肥市| 高台县| 修水县| 沙雅县| 永清县| 如皋市| 威远县| 天水市| 泗洪县| 邓州市| 金沙县| 三河市| 运城市| 会昌县| 随州市| 九龙县| 呈贡县| 富民县| 兴宁市| 天柱县| 垫江县| 吴旗县| 澄迈县| 伊川县| 呼图壁县| 惠水县| 慈溪市| 江孜县| 湘潭县|