參數資料
型號: PCM4222PFBR
英文描述: High-Performance, Two-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma Analog-to-Digital Converter
中文描述: 高性能,雙通道,24位,216kHz的采樣多位Δ-Σ模擬到數字轉換器
文件頁數: 27/38頁
文件大小: 604K
代理商: PCM4222PFBR
www.ti.com
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WCKO
VINL
-
VINL+
Multi-Bit
Delta-Signma
Modultaor
128f
S
8kHz
f
S
54kHz
128f
S
Output
Port
Multi-Bit
Delta-Signma
Modultaor
MCKI
MOD1 (LSB)
MOD2
MOD3
MOD4
MOD5
MOD6 (MSB)
VINR+
VINR
-
MCKI (256f )
S
WCKO (128f )
S
MOD1
MOD2
MOD3
MOD4
MOD5
MOD6
MODEN
PCM4222
SBAS399A–OCTOBER 2006–REVISED MARCH 2007
Figure 47. Multi-Bit Modulator (MBM) Output Function and Interface Format
Table 10. Multi-bit Modulator (MBM) Mode Configuration
MODEN (pin 23)
LO
MULTI-BIT MODULATOR OUTPUT
MBM Mode Disabled. Pins 17–22, 25, and 26 are mapped for PCM and DSD mode operation
MBM Mode Enabled. Pins 17–22, 25, and 26 are mapped for MBM operation. PCM and DSD
modes are disabled.
HI
When driving capacitive loads greater than 30pF with the MBM data and clock outputs, it is recommended that
external buffers be utilized to ensure data and clock integrity at the receiving device(s).
Refer to the
Electrical Characteristics
: Audio Interface Timing table and
Figure 4
for parameters and timing
information related to MBM operation.
27
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