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參數(shù)資料
| 型號： | STLC7550TQFP |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | LOW POWER LOW VOLTAGE ANALOG FRONT END |
| 中文描述： | 低電壓低功耗模擬前端 |
| 文件頁數(shù)： | 3/17頁 |
| 文件大?。?/td> | 174K |
| 代理商： | STLC7550TQFP |
PIN LIST
Pin Number
Name
Type
Description
TQFP44
1 - 2, 10 to 13,
21 to 24, 32 to
35, 43 - 44
3
4
5
6
7
8
9
14
15
16
17
18
19
20
25
26
27
28
29
30
31
36
37
38
39
40
41
42
TQFP48
1 - 2, 10 to 14,
22 to 26, 34 to
38, 46 to 48
3
4
5
6
7
8
9
15
16
17
18
19
20
21
27
28
29
30
31
32
33
39
40
41
42
43
44
45
NC
-
Not connected
SCLK
FS
DV
DD
DGND
MCM
XTALOUT
XTALIN/MCLK
HC1
HC0
PWRDWN
M/S
V
REFP
V
REFN
AGND1
AUXIN+
AUXIN-
IN+
IN-
AV
DD
V
CM
AGND2
OUT+
OUT-
RESET
TS
TSTD1
DIN
DOUT
O
I/O
I
I
I
O
I
I
I
I
I
O
O
I
I
I
I
I
I
O
I
O
O
I
I
I/O
I
O
Shift Clock Output
Frame Synchronization Input (slave)/Output (master)
Positive Digital Power Supply (2.7V TO 5.5V)
Digital Ground
Master Clock Mode
Crystal Output
Crystal Input (MCM = 1) / External Clock (MCM = 0)
Hardware Control Input
Hardware Control Input
Power down Input
Master/Slave Mode Control Pin Input
16-bit D/A and A/D Positive Reference Voltage
16-bit D/A and A/D Negative Reference Voltage
Analog Ground
Non-inverting Input to Auxiliary Analog Input
Inverting Input to Auxiliary Analog Input
Non-inverting Input to Analog Input Amplifier
Inverting Input to Analog Input Amplifier
Positive Analog Power Supply (2.7V to 5.5V)
Common Mode Voltage Output (AV
DD
/2)
Analog Ground
Non-inverting Smoothing Filter Output
Inverting Smoothing Filter Output
Reset Function to initialize the internal counters
Timeslot Control Input
Digital Input/Output reserved for test
Serial Data Input
Serial Data Output
7
PIN DESCRIPTION
1 - POWER SUPPLY
(5 pins)
1.1 - Analog V
DD
Supply
(AV
DD
)
This pin is the positive analog power supply
voltage for the DAC and the ADC section.
It is not internally connected to digital V
DD
supply
(DV
DD
).
In any case the voltage on this pin must be higher
or equal to the voltage of the Digital power supply
(DV
DD
).
1.2 - Digital V
DD
Supply
(DV
DD
)
This pin is the positive digital power supply for DAC
and ADC digital internal circuitry.
1.3 - Analog Ground
(AGND1, AGND2)
These pins are the ground return of the analog DAC
(ADC) section.
1.4 - Digital Ground
(DGND)
This pin is the ground for DAC and ADC internal
digital circuitry.
Notes :
1. To obtain published performance, the analog V
and Digital V
should be decoupled with respect to Analog Ground and Digital
Ground, respectively. The decoupling is intended to isolate digital noise from the analog section ; decoupling capacitors should
be as close as possible to the respective analog and digital supply pins.
2. All the ground pins must be tied together. In the following section, the ground and supply pins are referred to as GND and V
DD
,
respectively.
STLC7550
3/17
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