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參數(shù)資料
| 型號： | SI3232PPTX-EVB |
| 廠商： | Silicon Laboratories Inc |
| 文件頁數(shù)： | 115/128頁 |
| 文件大小： | 0K |
| 描述： | BOARD EVAL W/DISCRETE INTERFACE |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | ProSLIC® |
| 主要目的： | 接口，模擬前端（AFE） |
| 已用 IC / 零件： | Si3232 |
| 已供物品： | 板，CD |
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Si3232
Preliminary Rev. 0.96
87
Not
Recommended
fo
r N
ew
D
esi
gn
s
Reset settings = 0xE0
SBIAS: SLIC Bias Control (Register Address 8)
(Register type: Initialization/protected register bits)
Bit
D7
D6
D5D4D3D2D1D0
Name
STDBY
SQLCH
CAPB
BIASEN
OBIAS[1:0]
ABIAS[1:0]
Type
R/W–P
Bit
Name
Function
7STDBY
Low-power Standby Status.
Writing to this bit causes temporary manual control of this bit until a subsequent on-hook
or off-hook transition.
0 = low-power mode off (i.e. Active off-hook).
1 = low-power mode on (i.e. Active on-hook).
6SQLCH
Audio Squelch Control.
Indicates squelch of audio during the setting time set by the SPEEDUP RAM coefficient.
Writing to this bit causes temporary manual override until a speedup event occurs.
0 = Squelch off.
1 = Squelch on.
5CAPB
Audio Filter Capacitor Bypass.
Indicates filter capacitor pass during the setting time set by the SPEEDUP RAM coeffi-
cient. Writing to this bit causes temporary manual override until a speedup event occurs.
0 = Capacitors not bypassed.
1 = Capacitors bypassed.
4
BIASEN
SLIC Bias Enable.
Writing to this bit causes temporary manual control of SLIC bias until a subsequent on-
hook or off-hook state.
0 = SLIC bias off (i.e. Active on-hook).
1 = = SLIC bias on (i.e. Active off-hook).
3:2
OBIAS[1:0]
SLIC Bias Level, On-Hook Transmission State.
DC bias current flowing in the SLIC circuit during on-hook transmission state. Increasing
this value increases the ability of the SLIC to withstand longitudinal current artifacts.
00 = 4 mA per lead.
01 = 8 mA per lead.
10 = 12 mA per lead.
11 = 16 mA per lead.
1:0
ABIAS[1:0]
SLIC Bias Level, Active State.
DC bias current flowing in the SLIC circuit during the active off-hook state. Increasing this
value increases the ability of the SLIC to withstand longitudinal current artifacts.
00 = 4 mA per lead.
01 = 8 mA per lead.
10 = 12 mA per lead.
11 = 16 mA per lead.
Note: Bit type “P” = user-protected bits. Refer to the protected register bit section in the text of this application note.
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