参数资料
型号: CDB4245
厂商: Cirrus Logic Inc
文件页数: 11/59页
文件大小: 0K
描述: BOARD EVAL FOR CS4245 CODEC
标准包装: 1
主要目的: 音频编解码器
嵌入式: 是,FPGA / CPLD
已用 IC / 零件: CS4245
主要属性: 4 个单端模拟和 1 个麦克风输入和 8 个输出,S/PDIF 发射器和接收器
次要属性: 图形用户界面
已供物品:
产品目录页面: 754 (CN2011-ZH PDF)
相关产品: CS4245-DQZR-ND - IC CODEC AUD STER 104DB 48-LQFP
598-1616-ND - IC CODEC AUD STER 104DB 48LQFP
598-1034-ND - IC CODEC AUD STER 104DB 48LQFP
其它名称: 598-1501
CS4245
6. Guaranteed by design. See Figure 2 . R L and C L reflect the recommended minimum resistance and
maximum capacitance required for the internal op-amp’s stability. C L affects the dominant pole of the
internal output amp; increasing C L beyond 100 pF can cause the internal op-amp to become unstable.
DAC COMBINED INTERPOLATION & ON-CHIP ANALOG FILTER RESPONSE
Parameter (Note 7 , 10 )
Symbol
Min
Typ
Max
Unit
Combined Digital and On-chip Analog Filter Response
Single-Speed Mode
Passband (Note 7)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
De-emphasis Error (Note 9)
to -0.1 dB corner
to -3 dB corner
Fs = 44.1 kHz
tgd
0
0
-0.175
0.5465
50
-
-
-
-
-
-
-
10/Fs
-
0.35
0.4992
+0.01
-
-
-
+0.05/-0.25
Fs
Fs
dB
Fs
dB
s
dB
Combined Digital and On-chip Analog Filter Response
Double-Speed Mode
Passband (Note 7)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
to -0.1 dB corner
to -3 dB corner
tgd
0
0
-0.15
0.5770
55
-
-
-
-
-
-
5/Fs
0.22
0.501
+0.15
-
-
-
Fs
Fs
dB
Fs
dB
s
Combined Digital and On-chip Analog Filter Response
Quad-Speed Mode
Passband (Note 7)
Frequency Response 10 Hz to 20 kHz
StopBand
StopBand Attenuation
Group Delay
to -0.1 dB corner
to -3 dB corner
tgd
0
0
-0.12
0.7
51
-
-
-
-
-
-
2.5/Fs
0.110
0.469
0
-
-
-
Fs
Fs
dB
Fs
dB
s
7. Filter response is guaranteed by design.
8. For Single-Speed Mode, the Measurement Bandwidth is 0.5465 Fs to 3 Fs.
For Double-Speed Mode, the Measurement Bandwidth is 0.577 Fs to 1.4 Fs.
For Quad-Speed Mode, the Measurement Bandwidth is 0.7 Fs to 1 Fs.
9. De-emphasis is available only in Single-Speed Mode.
10. Response is clock dependent and will scale with Fs. Note that the amplitude vs. frequency plots of this
data ( Figures 21 to 30 ) have been normalized to Fs and can be de-normalized by multiplying the X-axis
scale by Fs.
DS656F3
11
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