參數(shù)資料
型號(hào)： PCM4222PFBRG4
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(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 9/40頁(yè)
文件大?。?/td> 609K
代理商： PCM4222PFBRG4
www.ti.com
PCM4222
SBAS399A–OCTOBER 2006–REVISED MARCH 2007
PIN DESCRIPTIONS (continued)
NAME
PIN NUMBER
I/O
DESCRIPTION
DSDEN or MOD6
22
I/O
DSD output enable input (active high), or modulator data output 6 (MSB) when MODEN = high.
MODEN
23
Input
Multi-bit modulator output enable (Active High)
DSDMODE
24
Input
DSD output mode/rate
SUB1 or MCKO
25
I/O
TDM active sub-frame selection input, or master clock output when MODEN = high.
SUB0 or WCKO
26
I/O
TDM active sub-frame selection input, or modulator left/right word clock output when MODEN = high.
DSDCLK
27
Output
DSD data clock
DSDL
28
Output
Left channel DSD data
DSDR
29
Output
Right channel DSD data
DGND
30
Ground
Digital ground
VDD
31
Power
Digital supply, +3.3V nominal
DATA
32
Output
PCM output data
BCK
33
I/O
PCM bit or data clock
LRCK
34
I/O
PCM left/right Word clock
MCKI
35
Input
Master clock
RST
36
Input
Reset and power-down
OVFL
37
Output
Left channel overflow flag (Active high)
OVFR
38
Output
Right channel overflow flag (Active high)
S/M
39
Input
PCM output slave/master mode
DGND
40
Output
Digital ground
OWL1
41
Input
PCM output word length
OWL0
42
Input
PCM output word length
FMT1
43
Input
PCM output data format
FMT0
44
Input
PCM output data format
DGND
45
Ground
Digital ground
VREFR
46
Output
Right channel reference output for decoupling purposes only.
REFGNDR
47
Ground
Right channel reference ground. Connect to analog ground.
VCOMR
48
Output
Right channel common-mode voltage (0.4875 x VCC1 nominal)
9
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