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零件编号 | 24109-11Z | ||
描述 | CX24109-11Z | ||
制造商 | NXP Semiconductors | ||
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CX24109
Digital Satellite Tuner
Rev. 01 — 13 November 2008
Product data sheet
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Abstract
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NXP Semiconductors
CX24109
Digital Satellite Tuner
CX24109_N_1
Product data sheet
Rev. 01 — 13 November 2008
© NXP B.V. 2008. All rights reserved.
8
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NXP Semiconductors
Figure 4. Serial Interface Programming Example
CX24109
Chapter 1: Functional Description
Clock
Data
Enable
...
...
Figure 5.
102031_005
The internal shift register in the CX24109 is 21 bits long. When the data is latched into the IC,
the two MSBs act as control bits, and the lower 19 bits are the data bits as illustrated in
Figure 5. Data must be entered MSB first.
Programming Word Configuration
MSB
d20 d19
LSB
d18 d17 d16 d15 d14 d13 d12 d11 d10 d9 d8 d7 d6 d5 d4 d3 d2 d1 d0
Control
Bits
Data Bits
102031_006
The control bits determine the functional block that is being programmed, while the data bits
contain the specific control information. Table 3 provides a detail mapping of the control and
data bits.
Table 3.
Programming Bit Mapping (Sheet 1 of 2)
Programming Bit Mapping
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
MSB LSB
Band Select
0 0 R R R R R R R R(1) R V R(1)
Band Select
VGA Programming
0 1R
VGA2 Offset
VGA1 Offset
VCA Programming
1 0R
VCA Offset
VCA Slope
PLL Programming
CX24109_N_1
Product data sheet
Rev. 01 — 13 November 2008
© NXP B.V. 2008. All rights reserved.
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页数 | 30 页 | ||
下载 | [ 24109-11Z.PDF 数据手册 ] |
零件编号 | 描述 | 制造商 |
24109-11Z | CX24109-11Z | NXP Semiconductors |
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