參數(shù)資料
型號(hào): EVAL-AD1937AZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 26/36頁(yè)
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD1937
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
已用 IC / 零件: AD1937
主要屬性: 24 位,192 kHz,4 ADC: 107dB 動(dòng)態(tài)范圍,8 DAC: 112dB 動(dòng)態(tài)范圍
次要屬性: 分時(shí)復(fù)用(TDM)、I2C 和 SPI 接口,Popguard? 技術(shù)
已供物品:
AD1937
Rev. B | Page 32 of 36
APPLICATIONS CIRCUITS
Typical application circuits are shown in Figure 31 through Figure 34. Figure 31 shows a typical ADC input filter circuit. Recommended
loop filters for LRCLK and MCLK as the PLL reference are shown in Figure 32. Output filters for the DAC outputs are shown in Figure 33
and a regulator circuit is shown in Figure 34.
2
1
3
OP275
+
6
7
5
OP275
+
5.76k
237
5.76k
120pF
600Z
AUDIO
INPUT
100pF
5.76k
120pF
4.7F
+
237
4.7F
+
100pF
1nF
NPO
1nF
NPO
ADCxxN
ADCxxP
07414-
030
Figure 31. Typical ADC Input Filter Circuit
39nF
2.2nF
LF
LRCLK
AVDD2
3.32k
5.6nF
390pF
LF
MCLK
AVDD2
562
07
414
-03
1
Figure 32. Recommended Loop Filters for LRCLK or MCLK as PLL Reference
2
1
3
OP275
+
2.2nF
NPO
AUDIO
OUTPUT
604
68pF
NPO
150pF
NPO
560pF
NPO
270pF
NPO
DAC
OUTN
11k
3.01k
11k
DAC
OUTP
5.62k
1.50k
5.62k
07
41
4-
03
2
Figure 33. Typical DAC Output Filter Circuit (Differential)
VSUPPLY
5V
10F
+
E
C
B
VSENSE
3.3V
FZT953
VDRIVE
1k
100nF
10F
+
100nF
074
14
-033
Figure 34. Recommended 3.3 V Regulator Circuit
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