參數(shù)資料
型號： ADAU1702JSTZ-RL
廠商： Analog Devices Inc
文件頁數(shù)： 3/52頁
文件大小： 0K
描述： IC AUDIO PROC 2ADC/4DAC 48-LQFP
標(biāo)準(zhǔn)包裝： 2,000
系列： SigmaDSP®
類型： 音頻處理器
應(yīng)用： 車載，監(jiān)視器，MP3
安裝類型： 表面貼裝
封裝/外殼： 48-LQFP
供應(yīng)商設(shè)備封裝： 48-LQFP（7x7）
包裝： 帶卷 (TR)
ADAU1702
Rev. C | Page 11 of 52
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
36
35
34
33
32
31
30
29
28
27
26
25
1
2
3
4
5
6
7
8
9
10
11
12
AVDD
PLL_LF
PVDD
PGND
MCLKI
OSCO
RSVD
MP2
MP3
MP8
MP9
DGND
DV
DD
MP
7
MP
6
MP
10
V
DRI
V
E
IOV
D
MP
11
ADDR1/
CDA
T
A/
W
B
CL
AT
C
H/
W
P
S
DA/
CO
UT
S
CL
/CCL
K
DV
DD
AGND
ADC0
ADC_RES
ADC1
RESET
SELFBOOT
ADDR0
MP4
MP5
MP1
MP0
DGND
13 14 15 16 17 18 19 20 21 22 23 24
48 47 46 45 44 43 42 41 40 39 38 37
AV
D
FIL
T
A
VO
U
T
0
VO
U
T
1
VO
U
T
2
VO
U
T
3
AG
ND
FIL
T
D
CM
PL
L
_M
O
D
E1
PL
L
_M
O
D
E0
AG
ND
ADAU1702
TOP VIEW
(Not to Scale)
PIN 1
INDICATOR
05
79
8-
0
07
Figure 7. 48-Lead LQFP Pin Configuration
Table 9. Pin Function Descriptions
Pin No.
Mnemonic
Type 1
Description
1, 37, 42
AGND
PWR
Analog Ground Pin. The AGND, DGND, and PGND pins can be tied directly together in a
common ground plane. Decouple AGND to an AVDD pin with a 100 nF capacitor.
2
ADC0
A_IN
Analog Audio Input 0. Full-scale 100 μA rms input. Current input allows the input voltage
level to be scaled with an external resistor. An 18 kΩ resistor gives a 2 V rms full-scale
input. See the Audio ADCs section for details.
3
ADC_RES
A_IN
ADC Reference Current. Set the full-scale current of the ADCs with an external 18 kΩ resistor
connected between this pin and ground. See the Audio ADCs section for details.
4
ADC1
A_IN
Analog Audio Input 1. Full-scale 100 μA rms input. Current input allows the input voltage
level to be scaled with an external resistor. An 18 kΩ resistor gives a 2 V rms full-scale input.
5
RESET
D_IN
Active Low Reset Input. Reset is triggered on a high-to-low edge, and the ADAU1702 exits
reset on a low-to-high edge. For more information about initialization, see the Power-Up
Sequence section for details.
6
SELFBOOT
D_IN
Enable/Disable Self-Boot. SELFBOOT selects control port (low) or self-boot (high). Setting
this pin high initiates a self-boot operation when the ADAU1702 is brought out of a reset. This
pin can be tied directly to the control voltage or pulled up/down with a resistor. See the
Self-Boot section for details.
7
ADDR0
D_IN
I2C and SPI Address 0. In combination with the ADDR1 function on Pin 20, this pin allows
up to four ADAU1702 devices to be used on the same I2C bus and up to two ICs to be used
with a common SPI CLATCH signal. See the I2C Port section for details.
8
MP4
D_IO
Multipurpose GPIO or Serial Input Port LRCLK (INPUT_LRCLK). See the Multipurpose Pins
section for more details.
9
MP5
D_IO
Multipurpose GPIO or Serial Input Port BCLK (INPUT_BCLK). See the Multipurpose Pins
section for more details.
10
MP1
D_IO
Multipurpose GPIO or Serial Input Port Data 1 (SDATA_IN1). See the Multipurpose Pins
section for more details.
11
MP0
D_IO
Multipurpose GPIO or Serial Input Port Data 0 (SDATA_IN0). See the Multipurpose Pins
section for more details.
12, 25
DGND
PWR
Digital Ground Pin. The AGND, DGND, and PGND pins can be tied directly together in a
common ground plane. Decouple DGND to a DVDD pin with a 100 nF capacitor.
13, 24
DVDD
PWR
1.8 V Digital Supply. This can be supplied either externally or generated from a 3.3 V
supply with the on-board 1.8 V regulator. Decouple DVDD to DGND with a 100 nF
capacitor.
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