參數(shù)資料
型號(hào): LC7851E
廠商: Sanyo Electric Co.,Ltd.
英文描述: QPSK Demodulation and Audio Signal-Processing IC for Satellite Broadcast Reception
中文描述: QPSK解調(diào)器和音頻信號(hào)處理集成電路衛(wèi)星廣播接收
文件頁(yè)數(shù): 7/9頁(yè)
文件大?。?/td> 166K
代理商: LC7851E
No. 5691-7/9
LC7851E
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
SCL frequency
f
SCL
T
BUF
T
HD STA
T
LOW
T
HIGH
T
HD DAT
T
SU DAT
T
R
T
F
T
SU STO
100
kHz
Bus release time
4.7
μs
Start hold time
4.0
μs
SCL low time
4.7
μs
SCL high time
4.0
μs
Data hold time
0
ns
Data setup time
250
ns
Rise time
1000
ns
Fall time
300
ns
Stop setup time
4.0
μs
I
2
C Bus Interface
at Ta = –20 to +75°C, V
DD
= 4.5 to 5.5 V, GND = 0 V
S: Start condition
P: Stop condition
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Clock pulse width
T
CK2M
T
BSDL
T
DSDL
T
BSST
244
ns
BSTRO pin output delay time
15
ns
DSTRO pin output delay time
15
ns
BSTRI and DSTRI1 two-pin input setup time
10
ns
Descrambler Interface
at Ta = –20 to +75°C, V
DD
= 4.5 to 5.5 V, GND = 0 V
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
Reset time
T
RST
TSL pin high; The LC7851E must be used
with the TSL pin (pin 13) high.
200
ms
The LC7851E must be reset with the following timing when power is first applied.
Reset Timing at Power on
at Ta = –20 to +75°C, V
DD
= 4.5 to 5.5 V, GND = 0 V
Recommended Crystal Oscillator Constants
Pin I/O Circuit
Supplier
Oscillator element
Cin/Cout
Citizen Watch Co., Ltd.
CSA-309
(22.909088 MHz)
5pF
(Cin = Cout)
Pin 30
Pin 31
相關(guān)PDF資料
PDF描述
LC7851 QPSK Demodulation and Audio Signal-Processing IC for Satellite Broadcast Reception
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