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參數資料
| 型號： | 935261234112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO28 |
| 封裝： | PLASTIC, SOT-341, SSOP-28 |
| 文件頁數： | 22/44頁 |
| 文件大小： | 241K |
| 代理商： | 935261234112 |
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2000 Jan 24
29
Philips Semiconductors
Product specication
5 V mixers/oscillators and synthesizers for
cable TV and VCR 2-band tuners
TDA6402; TDA6402A;
TDA6403; TDA6403A
Table 26 Two status bytes acquisition
Notes
1. XX = Read status byte.
2. X = No acknowledge from the master means end of sequence.
Other I2C-bus addresses may be selected by applying an appropriate voltage to the CE input.
Examples of 3-wire bus sequences (SW = OPEN)
Table 27 18-bit sequence (fOSC = 800 MHz; PUHF = ON)
The reference divider is automatically set to 512 assuming that RSB has been set to logic 1 at power-on. If RSB has been
set to logic 0, in a previous 27-bit sequence, the reference divider will still be set at 640. In that event, the 18-bit sequence
has to be adapted to the 640 divider ratio.
Table 28 19-bit sequence (fOSC = 650 MHz; PUHF = ON)
The reference divider is automatically set to 512 assuming that RSB has been set to logic 1 at power-on. If RSB has been
set to logic 0 in a previous 27-bit sequence, the reference divider will still be set at 640. In that event, the 19-bit sequence
has to be adapted to the 640 divider ratio.
Table 29 27-bit sequence (fOSC = 750 MHz; PUHF = ON; N = 640; ICP =60 A; no test function)
Table 30 19-bit sequence
This sequence will program fOSC to 600 MHz in 50 kHz steps; ICP remains at 60 A.
Table 31 18-bit sequence
This sequence will program fOSC to 600 MHz in 50 kHz steps; ICP remains at 60 A.
SC3A
XX(1)
AXX(1)
X(2)
P
100011001000000000
1000010100010100000
100001110101001100010001000
1000010111011100000
100010111011100000
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