參數(shù)資料
型號(hào)： AD8197BASTZ-RL
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 15/28頁(yè)
文件大?。?/td> 0K
描述： IC SWITCH DVI/HDMI 4:1 100-LQFP
標(biāo)準(zhǔn)包裝： 1,000
功能： 開(kāi)關(guān)
電路： 1 x 16:1
電壓電源： 單電源
電壓 - 電源，單路/雙路(±)： 3 V ~ 3.6 V
工作溫度： -40°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 100-LQFP
供應(yīng)商設(shè)備封裝： 100-LQFP（14x14）
包裝： 帶卷 (TR)
AD8197B
Rev. 0 | Page 22 of 28
HIGH SPEED DEVICE MODES REGISTER
PP_EN: High Speed (TMDS) Channels Enable Bit
Table 19. PP_EN Description
PP_EN
Description
0
High speed channels off, low power/standby mode
1
High speed channels on
PP_CH[1:0]: High Speed (TMDS) Switch Source Select Bus
Table 20. PP_CH Mapping
PP_CH[1:0]
O[3:0]
Description
00
A[3:0]
High Speed Source A switched to
output
01
B[3:0]
High Speed Source B switched to
output
10
C[3:0]
High Speed Source C switched to
output
11
D[3:0]
High Speed Source D switched to
output
Note that after changing the status of the channel selection
(PP_CH[1:0]0), it is necessary to assert a low logic level to
RESET to ensure that the channel select status is properly
updated.
AUXILIARY DEVICE MODES REGISTER
PP_CH[1:0]: Auxiliary Switch Source Select Bus
Table 21. PP_CH Mapping
PP_CH[1:0]
AUX_COM[3:0]
Description
00
AUX_A[3:0]
Auxiliary Source A switched to
output
01
AUX_B[3:0]
Auxiliary Source B switched to
output
10
AUX_C[3:0]
Auxiliary Source C switched to
output
11
AUX_D[3:0]
Auxiliary Source D switched to
output
INPUT TERMINATION RESISTOR CONTROL
REGISTER 1 AND REGISTER 2
High speed input (TMDS) channels input terminations are off
when using the parallel interface. This can be changed only via
serial programming.
RECEIVE EQUALIZER REGISTER 1 AND REGISTER 2
PP_EQ: High Speed (TMDS) Inputs Equalization Level
Select Bit (For All TMDS Input Channels)
The input equalization cannot be set individually (per channel)
when using the parallel interface; one equalization setting
affects all input channels.
Table 22. PP_EQ Description
PP_EQ
Description
0
Low equalization (6 dB)
1
High equalization (12 dB)
TRANSMITTER SETTINGS REGISTER
PP_PE[1:0]: High Speed (TMDS) Output Pre-Emphasis
Level Select Bus (For All TMDS Channels)
Table 23. PP_PE[1:0] Description
PP_PE[1:0]
Description
00
No pre-emphasis (0 dB)
01
Low pre-emphasis (2 dB)
10
Medium pre-emphasis (4 dB)
11
High pre-emphasis (6 dB)
PP_OTO: High Speed (TMDS) Output Termination On/Off
Select Bit (For All TMDS Channels)
Table 24. PP_OTO Description
PP_OTO
Description
0
Output termination off
1
Output termination on
PP_OCL: High Speed (TMDS) Output Current Level Select
Bit (For All TMDS Channels)
Table 25. TX_OCL Description
PP_OCL
Description
0
Output current set to 10 mA
1
Output current set to 20 mA
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