參數(shù)資料
型號(hào): SI3211PPTX-EVB
廠商: Silicon Laboratories Inc
文件頁數(shù): 27/148頁
文件大?。?/td> 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: Si3211
已供物品: 板,CD
Si3210/Si3211
122
Rev. 1.61
Not
Recommended
fo
r N
ew
D
esi
gn
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4.3. Digital Programmable Gain/Attenuation
See functional description sections of digital programmable gain/attenuation for guidelines on computing register
values. All values are represented in 2s-complement format.
Note: The values of all indirect registers are undefined following the reset state. Shaded areas denote bits that can be read
and written but must be written to zeroes.
Table 41. Digital Programmable Gain/Attenuation Indirect Registers Summary
Addr.
D15
D14
D13
D12
D11
D10
D9D8D7
D6D5D4D3D2D1D0
26
DACG[11:0]
27
ADCG[11:0]
Table 42. Digital Programmable Gain/Attenuation Indirect Registers Description
Addr.
Description
Reference
Page
26
Receive Path Digital to Analog Converter Gain/Attenuation.
This register sets gain/attenuation for the receive path. The digitized signal is effectively mul-
tiplied by DACG to achieve gain/attenuation. A value of 0x00 corresponds to –
dB gain
(mute). A value of 0x400 corresponds to unity gain. A value of 0x7FF corresponds to a gain
of 6 dB.
27
Transmit Path Analog to Digital Converter Gain/Attenuation.
This register sets gain/attenuation for the transmit path. The digitized signal is effectively
multiplied by ADCG to achieve gain/attenuation. A value of 0x00 corresponds to –
dB gain
(mute). A value of 0x400 corresponds to unity gain. A value of 0x7FF corresponds to a gain
of 6 dB.
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