TUA6020 Infineon Technologies Corporation, TUA6020 Datasheet - Page 18

• Manufacturer Part Number: TUA6020
• Description: 2 Band Tv Tuner Mixer-oscillator-pll With Balanced If-amplifier
• Manufacturer: Infineon Technologies Corporation

TUA6020
preliminarytarget
Functional Description
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
falls below 3.2 V. It will be reset
CC
at the end of a READ operation.
Wireless Components
3 - 10
Specification, April 2000