參數(shù)資料
型號(hào): EVAL-AD1938AZ
廠商: Analog Devices Inc
文件頁數(shù): 32/32頁
文件大?。?/td> 0K
描述: BOARD EVAL FOR AD1938
標(biāo)準(zhǔn)包裝: 1
主要目的: 音頻編解碼器
已用 IC / 零件: AD1938
主要屬性: 24 位,192 kHz,4 ADC: 107dB 動(dòng)態(tài)范圍,8 DAC: 108dB 動(dòng)態(tài)范圍
次要屬性: 分時(shí)復(fù)用(TDM),SPI 接口
已供物品:
Data Sheet
AD1938
Rev. E | Page 9 of 32
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
05582-
002
AV
DD
48
LF
47
ADC2RN
46
ADC2RP
45
ADC2L
N
44
ADC2L
P
43
ADC1RN
42
ADC1RP
41
ADC1L
N
40
ADC1L
P
39
CM
38
AV
DD
37
DV
DD
13
DS
DAT
A3
14
DS
DAT
A2
15
DS
DAT
A1
16
DBCL
K
17
DL
RCL
K
18
AS
DAT
A2
19
AS
DAT
A1
20
ABCL
K
21
AL
RCL
K
22
CI
N
23
CO
UT
24
AGND
1
MCLKI/XI
2
MCLKO/XO
3
AGND
4
AVDD
5
OL3
6
OR3
7
OL4
8
OR4
9
PD/RST 10
DSDATA4
11
DGND 12
AGND
36
FILTR
35
AGND
34
AVDD
33
AGND
32
OR2
31
OL2
30
OR1
29
OL1
28
CLATCH
27
CCLK
26
DGND
25
AD1938
TOP VIEW
(Not to Scale)
SINGLE-ENDED
OUTPUT
Figure 2. Pin Configuration, 48-Lead LQFP
Table 10. Pin Function Descriptions
Pin No.
In/Out
Mnemonic
Description
1
I
AGND
Analog Ground.
2
I
MCLKI/XI
Master Clock Input/Crystal Oscillator Input.
3
O
MCLKO/XO
Master Clock Output/Crystal Oscillator Output.
4
I
AGND
Analog Ground.
5
I
AVDD
Analog Power Supply. Connect to analog 3.3 V supply.
6
O
OL3
DAC 3 Left Output.
7
O
OR3
DAC 3 Right Output.
8
O
OL4
DAC 4 Left Output.
9
O
OR4
DAC 4 Right Output.
10
I
PD/RST
Power-Down Reset (Active Low).
11
I/O
DSDATA4
DAC Serial Input 4. Data input to DAC4 data in/TDM DAC2 data out (dual-line mode)/AUX DAC2 data
out (to external DAC2).
12
I
DGND
Digital Ground.
13
I
DVDD
Digital Power Supply. Connect to digital 3.3 V supply.
14
I/O
DSDATA3
DAC Serial Input 3. Data input to DAC3 data in/TDM DAC2 data in (dual-line mode)/AUX ADC2 data
in (from external ADC2).
15
I/O
DSDATA2
DAC Serial Input 2. Data input to DAC2 data in/TDM DAC data out/AUX ADC1 data in (from external
ADC1).
16
I
DSDATA1
DAC Serial Data Input 1. Data input to DAC1 data in/TDM DAC data in/TDM data in.
17
I/O
DBCLK
Bit Clock for DACs.
18
I/O
DLRCLK
LR Clock for DACs.
19
I/O
ASDATA2
ADC Serial Data Output 2. Data output from ADC2/TDM ADC data in/AUX DAC1 data out (to external
DAC1).
20
O
ASDATA1
ADC Serial Data Output 1. Data output from ADC1/TDM ADC data out/TDM data out.
21
I/O
ABCLK
Bit Clock for ADCs.
22
I/O
ALRCLK
LR Clock for ADCs.
23
I
CIN
Control Data Input (SPI).
24
I/O
COUT
Control Data Output (SPI).
25
I
DGND
Digital Ground.
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