參數(shù)資料
型號(hào)： STV8206
廠商： 意法半導(dǎo)體
英文描述： Multistandard TV Audio Processor and Digital Sound Demodulator
中文描述： 多標(biāo)準(zhǔn)電視音頻處理器和數(shù)字聲音解調(diào)器
文件頁數(shù)： 30/97頁
文件大小： 1871K
代理商： STV8206
Power Supplies
STV82x6
30/97
7.2
Standby Mode
The STV82x6 provides a Thru mode configuration that bypasses IC functions via a SCART I/O pin
(Full Analog Path only). In this case, only minimum power is required (Standby mode).
In Standby mode, the digital and analog power supplies are switched off, except for pins VDDA and
VDDH which are used to maintain the SCART path, the last configuration programmed for analog
matrixing (register
ANA_SCART
) and the power configuration (register
ANA_CTRL
). When
switching back to normal Full Power mode, all I2C registers are reset except for those used in
Standby mode to maintain the original configuration.
In Standby mode, the I2C bus does not operate. However, the bus can still be used by other ICs
since the I2C I/O pins (SDA and SCL) of the STV82x6 are forced into a high-impedance
configuration.
Figure 18: 5 V / 8 V or 5 V / 5 V Application
Digital Core
Clock Generator
A
Analog
Core
REG
VDDH
STV82x6
5 V
DPS
Standby
VDD1
VDD2
VDDP
V
V
V
8 or 5 V
APS
Regulator
3.3 V
Regulator
3.3 V
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