參數(shù)資料
型號: tua 6012XS
廠商: SIEMENS AG
英文描述: 2 Band TV Tuner(兩波段電視調諧器)
中文描述: 2波段電視調諧器(兩波段電視調諧器)
文件頁數(shù): 13/31頁
文件大小: 420K
代理商: TUA 6012XS
TUA 6012
TUA 6014
Semiconductor Group
13
1998-09-01
each case the second byte of the same data type has to follow the first byte. If the
address byte indicates a READ operation, the PLL generates an acknowledge and then
shifts out the status byte onto the SDA line. If the processor generates an acknowledge,
a further status byte is output; otherwise the data line is released to allow the processor
to generate a stop condition. The status word consists of two bits from the TTL input
ports, three bits from the A/D converter, the lock flag and the power-on flag.
Four different chip addresses can be set by appropriate DC level at pin CAS
(see ”Address Selection” on page 15).
When the supply voltage is applied, a power-on reset circuit prevents the PLL from
setting the SDA line to LOW, which would block the bus. The power-on reset flag POR
is set at power-on and if
V
VCC
falls below 3.2 V. It will be reset at the end of a READ
operation.
2.3.1
Bit Allocation Read/Write
Byte
Write Data
Address byte
Progr. divider
byte 1
Progr. divider
byte 2
Control byte 1
Control byte 2
Read Data
Address byte
Status byte
MSB Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 LSB
Ack
Remarks
1
0
1
n14
0
n13
0
n12
0
n11
MA1 MA0 0
n10
n9
A
A
n8
n7
n6
n5
n4
n3
n2
n1
n0
A
1
x
5I
x
T1
x
T0
x
1
P3
RSA RSB OS
P2
P1
A
A
P0
1
POR FL
1
0
x
0
I1
0
I0
MA1 MA0 1
A2
A1
A
A
A0
相關PDF資料
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tua 6014-K Single Chip for Terrestrial Television(電視調諧芯片)
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