參數(shù)資料
型號: AD1836A
廠商: Analog Devices, Inc.
元件分類: Codec
英文描述: Multichannel 96 kHz Codec
中文描述: 多通道96 kHz的編解碼器
文件頁數(shù): 17/18頁
文件大?。?/td> 878K
代理商: AD1836A
PRELIMINARY TECHNICAL DATA
REV. PrC
AD1836
–17–
ADC Control Register 3
Function
Left
MUX/PGA
Enable
Left
MUX
I/P Select
Right
MUX/PGA
Enable
Right
MUX
I/P Select
Clock
Mode
Left Diff.
I/P Select
Right Diff.
I/P Select
Address
RD/WR
Reserved
15, 14, 13, 12
11
10, 9, 8
7, 6
5
4
3
2
1
0
1110
0
000
00 = 256
×
f
S
01 = 512
×
f
S
10 = 768
×
f
S
0 = Differential
PGA Mode.
1 = PGA/MUX
0 = Differential
PGA Mode.
1 = PGA/MUX
Mode (Single-
Ended Input)
0 = Direct
1 = MUX/
PGA
Mode (Single-
Ended Input)
0 = I/P 0
1 = I/P 1
0 = Direct
1 = MUX/
PGA
0 = I/P 0
1 = I/P 1
*
When changing clock doubler bypass mode, other SPI bits that are written during the same SPI transaction may be lost. It is therefore recommended that a separate
transaction be used for setting CLKDBL Bypass Mode.
ADC Peak Level Data Registers
Peak Level Data (10 Bits)
6-Data Bits
Address
RD/WR
RSVD
4-Fixed Bits
15, 14, 13, 12
11
10
9..4
3..0
1000 = ADC0
1001 = ADC1
1010 = ADC2
1011 = ADC3
1
0
000000 = 0.0 dBFS
000001 = –1.0 dBFS
000010 = –2.0 dBFS
000011 = –3.0 dBFS
.
.
.
111111 = –63 dBFS
0000
The four LSBs are always zero.
AD1836
ADC2L
C1
1nF
C2
1nF
LEFT
INPUT #1
LEFT
INPUT #2
CAP1L
INPUT SELECT
250
PGA
+
+
V
REF
250
V
REF
M
CAP2L
GAIN SELECT
POWER-DOWN
NOTE
ADC2 SINGLE-ENDED MUX PGA INPUT MODE
LEFT CHANNEL ONLY SHOWN
CONTROL REGISTER 3 CONTENTS: 6 LSBS: SELECT INPUT #1: 11 1010
SELECT INPUT #2: 11 1111
Figure 12. Single-Ended MUX/PGA Mode
AD1836
ADC2L
C1
1nF
C2
1nF
LEFT + VE
INPUT
LEFT
VE
INPUT
CAP1L
250
+
250
+
V
REF
CAP2L
GAIN SELECT
POWER-DOWN
NOTE
ADC2 DIFFERENTIAL PGA INPUT MODE
LEFT CHANNEL ONLY SHOWN
CONTROL REGISTER 3 CONTENTS: 6 LSBS: 00 1010
Figure 13. Differential Mode
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