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參數(shù)資料
| 型號： | TUA6010XS |
| 廠商： | SIEMENS A G |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | VIDEO TUNER, PDSO28 |
| 文件頁數(shù)： | 32/32頁 |
| 文件大?。?/td> | 839K |
| 代理商： | TUA6010XS |
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TUA 6010XS
Semiconductor Group
9
05.96
The lock detector resets the lock flag FL when the width of the charge pump current
pulses is greater than the period of the crystal oscillator (i.e. 250 ns). Hence, when
FL = ‘1’, the maximum deviation of the input frequency from the programmed frequency
is given by
f = ± I
p (KVCO / fQ) (C1 + C2)/(C1 C2)
where
I
p is the charge pump current, KVCO the VCO gain, fQ the crystal oscillator frequency
and
C
1, C2 the capacitances in the loop filter (see application circuit). As the charge
pump pulses at 62.5 kHz (=
f
REF), it takes a maximum of 16 s for FL to be reset after the
loop has lost lock state.
Once FL has been reset, it is set only if the charge pump pulse width is less than 250 ns
for eight consecutive
f
REF periods. Therefore it takes between 128 s and 144 s for FL
to be set after the loop regains lock.
Note: MSB is shifted first.
Table 1
Bit Allocation Read/Write Data
MSB Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
LSB
Ack
Write Data
Address Byte
1100
0MA1
MA0
0
Ack
Prog. Divider Byte 1
0
n14
n13
n12
n11
n10
n9
n8
Ack
Prog. Divider Byte 2
n7n6n5n4n3n2n1n0Ack
Control Byte 1
1
5I
T1
T0
111OS
Ack
Control Byte 2
V/U
x
P2P1P0Ack
Read Data
Address Byte
1100
0MA1
MA0
1
Ack
Status Byte
POR
FL
x
I1
I0
A2
A1
A0
Ack
相關PDF資料 |
PDF描述 |
|---|---|
| TUA6014-K | 2-BAND, VIDEO TUNER, PDSO28 |
| TUA6014-S | 2-BAND, VIDEO TUNER, PDSO28 |
| TUA6014XS | 2-BAND, VIDEO TUNER, PDSO28 |
| TUA6012XS | 2-BAND, VIDEO TUNER, PDSO28 |
| TUA6020 | 2-BAND, VIDEO TUNER, PDSO28 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| TUA6012 | 制造商:SIEMENS 制造商全稱:Siemens Semiconductor Group 功能描述:Components for Entertainment Electronics |
| TUA6012XS | 制造商:SIEMENS 制造商全稱:Siemens Semiconductor Group 功能描述:Components for Entertainment Electronics |
| TUA6014-K | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Components for Entertainment Electronics |
| TUA6014-S | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Components for Entertainment Electronics |
| TUA6014XS | 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:Components for Entertainment Electronics |
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