参数资料
型号: CDB4265
厂商: Cirrus Logic Inc
文件页数: 32/46页
文件大小: 0K
描述: BOARD EVAL FOR CS4265 CODEC
标准包装: 1
主要目的: 音频编解码器
嵌入式:
已用 IC / 零件: CS4265
主要属性: 立体声 24 位 192 kHz 采样率
次要属性: 图形用户界面,S/PDIF/ I2S / I2C / SPI 接口
已供物品: 板,缆线,CD
产品目录页面: 754 (CN2011-ZH PDF)
相关产品: CS4265-DNZR-ND - IC CODEC 24BIT 104DB 32-QFN
CS4265-DNZ-ND - IC CODEC 24BIT 104DB 32-QFN
598-1039-ND - IC CODEC 24BIT 104DB 32QFN
其它名称: 598-1001
38
DS657F3
CS4265
6.3.3
De-Emphasis Control (Bit 1)
Function:
The standard 50/15 s digital de-emphasis filter response, Figure 17, may be implemented for a sample
rate of 44.1 kHz when the DeEmph bit is configured as shownin Table 8. NOTE: De-emphasis is available
only in Single-Speed Mode.
6.4
ADC Control - Address 04h
6.4.1
Functional Mode (Bits 7:6)
Function:
Selects the required range of sample rates.
6.4.2
ADC Digital Interface Format (Bit 4)
Function:
The required relationship between LRCK, SCLK and SDOUT is defined by the ADC Digital Interface For-
mat bit. The options are detailed in Table 10 and may be seen in Figure 5 and Figure 6.
DeEmph
Description
0
Disabled (default)
1
44.1 kHz de-emphasis
Table 8. De-Emphasis Control
76
543
21
0
FM1
FM0
Reserved
ADC_DIF
Reserved
MuteADC
HPFFreeze
M/S
FM1
FM0
Mode
0
Single-Speed Mode: 4 to 50 kHz sample rates
0
1
Double-Speed Mode: 50 to 100 kHz sample rates
1
0
Quad-Speed Mode: 100 to 200 kHz sample rates
11
Reserved
Table 9. Functional Mode Selection
Gain
dB
-10dB
0dB
Frequency
T2 = 15 s
T1=50 s
F1
F2
3.183 kHz
10.61 kHz
Figure 17. De-Emphasis Curve
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