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參數(shù)資料
| 型號(hào)： | TUA6020 |
| 廠商： | SIEMENS AG |
| 英文描述： | 2 Band TV Tuner Mixer-Oscillator-PLL with balanced IF-Amplifier(兩波段電視調(diào)諧器（帶振蕩器、IF放大器）) |
| 中文描述： | 2波段電視調(diào)諧器混頻器振蕩器與均衡的中頻放大器（兩波段電視調(diào)諧器（帶振蕩器中頻放大器）鎖相環(huán)） |
| 文件頁數(shù)： | 18/38頁 |
| 文件大小： | 464K |
| 代理商： | TUA6020 |
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Functional Description
3 - 10
TUA6020
preliminary
Wireless Components
Confidential
Specification, March 2000
If the address byte indicates a READ operation, the PLL generates an acknowl-
edge and then shifts out the status byte onto the SDA line. If the processor gen-
erates 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 the lock flag and the power-on flag.
Four different chip addresses can be set by appropriate DC level at pin AS (
see
Table 5-6 Address selection on page 11
).
While applying the supply voltage, 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 when V
CC
falls below 3.2 V. It will be reset
at the end of a READ operation.
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