參數(shù)資料
型號(hào)： CS4205-KQZ
廠商： Cirrus Logic Inc
文件頁(yè)數(shù)： 9/81頁(yè)
文件大?。?/td> 0K
描述： IC CODEC AC97 I2S 48-LQFP
標(biāo)準(zhǔn)包裝： 250
類型： 音頻編解碼器 '97
數(shù)據(jù)接口： 串行
分辨率（位）： 18，20 b
ADC / DAC 數(shù)量： 1 / 2
三角積分調(diào)變： 是
動(dòng)態(tài)范圍，標(biāo)準(zhǔn) ADC / DAC (db)： 90 / 90
電壓 - 電源，模擬： 4.75 V ~ 5.25 V
電壓 - 電源，數(shù)字： 4.75 V ~ 5.25 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-TQFP（9x9）
包裝： 托盤(pán)
產(chǎn)品目錄頁(yè)面： 754 (CN2011-ZH PDF)
其它名稱： 598-1182
CS4205
DS489PP4
17
3.2
Digital Centric Mode
Digital centric mode is detailed in Figure 11. In this
mode, the analog sources are first mixed in the an-
alog mixer and sent to the ADCs. The ADC outputs
are then mixed with the digital sources in the digital
mixer. This allows effects processing on all sources
and supports a “what you hear is what you record”
model. The processed digital signal is sent to the
DACs, bypassing the analog mixer using DAC di-
rect mode. The ADC mux must be set to stereo mix
to support this model. Consequently, only the mix
can be captured by the host, rather than the individ-
ual sources.
3.3
Host Processing Mode
Host processing mode is detailed in Figure 12. This
mode is similar to digital centric mode, except the
output of the digital mixer is captured by the host.
Any mixing with host sources and effects process-
ing is done on the host. The processed signal is sent
to the DACs, bypassing the analog mixer using
DAC direct mode. In host processing mode, the
playback and capture paths are completely separate
inside the CS4205.
3.4
Multi-Channel Mode
Multi-channel mode is detailed in Figure 13. This
mode is an extension of any of the other three
modes, with the distinguishing feature that one or
two additional slot pairs are routed to the serial data
output
ports.
This
allows
for
a
complete
multi-channel solution with a single AC ’97 audio
codec and external DACs.
AC Mode
Control Bits
Analog Centric
Mode
Digital Centric
Mode
Host Processing
Mode
Multi-Channel
Mode
DACS
1
0
0 or 1
CAPS[1:0]
00
10
00,10 or 11
MICS
0 or 1
DDM
0
1
0 or 1
SDOS[1:0]
10 or 11
11
-
00
SPDS[1:0]
00, 01, 10 or 11
00 or 01
N/A
Table 1. AC Mode Control Configurations
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