參數(shù)資料
型號: PGA2500IDB
英文描述: Digitally Controlled Microphone Preamplifier
中文描述: 數(shù)控麥克風(fēng)前置放大器
文件頁數(shù): 4/16頁
文件大?。?/td> 197K
代理商: PGA2500IDB
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SBOS289A NOVEMBER 2003 REVISED DECEMBER 2003
www.ti.com
4
PIN CONFIGURATION
PGA2500
1
2
3
4
5
28
27
26
25
24
AGND
V
IN
+
V
IN
V
COM
IN
C
S11
GPO1
GPO2
GPO3
GPO4
OVR
6
7
8
9
10
11
12
13
14
23
22
21
20
19
18
17
16
15
C
S12
C
S21
C
S22
VA
VA+
VA+
V
OUT
+
V
OUT
VA
DGND
DCEN
0dB
ZCEN
SDI
CS
SCLK
SDO
VD
PIN DESCRIPTIONS
PIN NUMBER
1
NAME
GPO1
DESCRIPTION
General-Purpose CMOS Logic Output
2
GPO2
General-Purpose CMOS Logic Output
3
GPO3
General-Purpose CMOS Logic Output
4
GPO4
General-Purpose CMOS Logic Output
5
OVR
Over Range Output (Active High)
6
DGND
Digital Ground
7
DCEN
DC Servo Enable (Active Low)
8
0dB
Unity Gain Enable (Active High)
9
ZCEN
Zero Crossing Detector Enable (Active High)
10
SDI
Serial Data Input
11
CS
Chip Select Input (Active Low)
12
SCLK
Serial Data Clock Input
13
SDO
Serial Data Output
14
VD
5V Digital Supply
15
VA
5V Analog Supply
16
V
OUT
V
OUT
+
VA+
Analog Output, Inverting
17
Analog Output, Non-Inverting
18
+5V Analog Supply
19
VA+
+5V Analog Supply
20
VA
5V Analog Supply
21
C
S22
C
S21
C
S12
C
S11
V
COM
IN
V
IN
V
IN
+
AGND
DC Servo Capacitor #2, Terminal 2
22
DC Servo Capacitor #2, Terminal 1
23
DC Servo Capacitor #1, Terminal 2
24
DC Servo Capacitor #1, Terminal 1
25
Common Mode Voltage Input, 0V to +2.5V
26
Analog Input, Inverting
27
Analog Input, Noninverting
28
Analog Ground
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