參數(shù)資料
型號(hào): PCM1870RHFT
英文描述: 16-Bit Low-Power Stereo Audio ADC With Microphone Bias and Microphone Amplifier
中文描述: 16位低功耗立體聲音頻ADC,具有麥克風(fēng)偏置和麥克風(fēng)放大器
文件頁(yè)數(shù): 5/49頁(yè)
文件大小: 648K
代理商: PCM1870RHFT
www.ti.com
PCM1870
SLAS544–MAY 2007
Table 1. TERMINAL FUNCTIONS
TERMINAL
NAME
AGND
AIN1L
AIN1R
AIN2L
AIN2R
AOL
AOR
BCK
DGND
DOUT
LRCK
MC/SCL
MD/SDA
MICB
MODE
MS/ADR
PGINL
PGINR
SCKI
TEST
V
CC
V
COM
V
DD
V
IO
I/O
DESCRIPTION
NO.
24
21
20
3
2
18
16
13
11
8
14
7
6
22
4
5
19
17
12
15
23
1
10
9
I
I
I
I
O
O
I/O
O
I/O
I
I/O
O
I
I
I
I
I
I
Ground for analog
Analog input 1 for L-channel
Analog input 1 for R-channel
Analog input 2 for L-channel
Analog input 2 for R-channel
Microphone amplifier output for L-channel
Microphone amplifier output for R-channel
Serial bit clock
Ground for digital
Serial audio data output
Left- and right-channel clock
Mode control clock for 3-wire / 2-wire interface
Mode control data for 3-wire / 2-wire interface
Microphone bias source output
2- or 3-wire interface selection (LOW: SPI, HIGH: I
2
C)
Mode control select for 3-wire / 2-wire interface
Analog input to gain amplifier for L-channel
Analog input to gain amplifier for R-channel
System clock
Test Pin. Should be connected to ground.
Power supply for analog
Common voltage for analog
Power supply for digital core
Power supply for digital I/O
5
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