參數(shù)資料
型號(hào): CS5346-CQZR
廠商: Cirrus Logic Inc
文件頁(yè)數(shù): 15/38頁(yè)
文件大小: 0K
描述: IC ADC AUD 103DB 200KHZ 48-LQFP
標(biāo)準(zhǔn)包裝: 2,000
位數(shù): 24
采樣率(每秒): 200k
數(shù)據(jù)接口: 串行
轉(zhuǎn)換器數(shù)目: 2
功率耗散(最大): 250mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°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-LQFP(7x7)
包裝: 帶卷 (TR)
輸入數(shù)目和類型: 6 個(gè)單端,單極
配用: 598-1790-ND - BOARD EVAL FOR CS5346
22
DS861PP3
CS5346
demonstrates a simple solution. The 1800 pF capacitors in the low-pass filter should be C0G or equivalent
to avoid distortion issues
.
5.5.2
Analog Input Configuration for 2 VRMS Input Levels
The CS5346 can also be easily configured to support an external 2 VRMS input signal, as shown in
Figure 13. In this configuration, the 2 VRMS input signal is attenuated to 1.5 VRMS at the analog input with
the external 12 k resistor and the input impedance to the network is increased to 48 k. The PGA gain
must also be configured to attenuate the 1.5 VRMS at the input pin to the 1.0 VRMS maximum A/D input level
to prevent clipping in the ADC.
36 k
VCM
9 k to 144 k
A/ D Input
-
+
Analog Input
CS5346
Figure 10. CS5346 PGA
36 k
VCM
9 k to 144 k
A/ D Input
-
+
2. 2 F
100 k
Analog Input
CS5346
Figure 11. 1 VRMS Input Circuit
36 k
VCM
9 k to 144 k
A/DInput
2.2 F
1800 pF
100 k
100
-
+
Analog Input
Figure 12. 1 VRMS Input Circuit with RF Filtering
36 k
VCM
9 k to 144 k
A/ D Input
-
+
2. 2 F
18 pF
100k
12 k
Analog Input
CS5346
Figure 13. 2 VRMS Input Circuit
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