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參數(shù)資料
| 型號(hào)： | ADV7189BKSTZ |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 12/104頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DECODER VIDEO W/ADC 80LQFP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 類型： | 視頻解碼器 |
| 應(yīng)用： | 機(jī)頂盒，視頻播放器，錄音機(jī) |
| 電壓 - 電源，模擬： | 3.15 V ~ 3.45 V |
| 電壓 - 電源，數(shù)字： | 1.65 V ~ 2 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 80-LQFP |
| 供應(yīng)商設(shè)備封裝： | 80-LQFP（14x14） |
| 包裝： | 托盤 |
| 產(chǎn)品目錄頁面： | 788 (CN2011-ZH PDF) |
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ADV7189B
Rev. B | Page 15 of 104
Manual Input Muxing
By accessing a set of manual override muxing registers, the
analog input muxes of the ADV7189B can be controlled
directly. This is referred to as manual input muxing.
Manual input muxing overrides other input muxing control
bits, for example, INSEL. The manual muxing is activated by
setting the ADC_SW_MAN_EN bit. It only affects the analog
switches in front of the ADCs.
This means if the settings of INSEL and the manual input
muxing registers (ADC0/1/2_sw) contradict each other, the
ADC0/ADC1/ADC2_sw settings apply and INSEL is ignored.
Manual input muxing controls only the analog input muxes.
INSEL[3:0] still has to be set so the follow-on blocks process
the video data in the correct format.
This means INSEL must be used to tell the ADV7189B whether
the input signal is of component, YC, or CVBS format.
Restrictions in the channel routing are imposed by the analog
signal routing inside the IC; every input pin cannot be routed
to each ADC. Refer to
145H
Figure 6 for an overview on the routing
capabilities inside the chip. The three mux sections can be
controlled by the reserved control signal buses ADC0/ADC1/
ADC2_sw[3:0].
146H
Table 10 explains the control words used.
SETADC_sw_man_en, Manual Input Muxing Enable,
Address C4[7]
ADC0_sw[3:0],
ADC0 Mux Configuration, Address 0xC3[3:0]
ADC1_sw[3:0],
ADC1 Mux Configuration, Address 0xC3[7:4]
ADC2_sw[3:0],
ADC2 Mux Configuration, Address 0xC4[3:0]
Table 10. Manual Mux Settings for All ADCs (SETADC_sw_man_en = 1)
ADC0_sw[3:0]
ADC0 Connected To:
ADC1_sw[3:0]
ADC1 Connected To:
ADC2_sw[3:0]
ADC2 Connected To:
0000
No Connection
0000
No Connection
0000
No Connection
0001
AIN1
0001
No Connection
0001
No Connection
0010
AIN2
0010
No Connection
0010
AIN2
0011
AIN3
0011
AIN3
0011
No Connection
0100
AIN4
0100
AIN4
0100
No Connection
0101
AIN5
0101
AIN5
0101
AIN5
0110
AIN6
0110
AIN6
0110
AIN6
0111
No Connection
0111
No Connection
0111
No Connection
1000
No Connection
1000
No Connection
1000
No Connection
1001
AIN7
1001
No Connection
1001
No Connection
1010
AIN8
1010
No Connection
1010
AIN8
1011
AIN9
1011
AIN9
1011
No Connection
1100
AIN10
1100
AIN10
1100
No Connection
1101
AIN11
1101
AIN11
1101
AIN11
1110
AIN12
1110
AIN12
1110
AIN12
1111
No Connection
1111
No Connection
1111
No Connection
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