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參數(shù)資料
| 型號： | SPT7722SIT |
| 廠商： | SIGNAL PROCESSING TECHNOLOGIES |
| 元件分類： | ADC |
| 英文描述： | 8-bit, 250 MSPS A/D Converter with Demuxed Outputs |
| 中文描述： | 1-CH 8-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PQFP44 |
| 封裝： | TQFP-44 |
| 文件頁數(shù)： | 11/12頁 |
| 文件大?。?/td> | 217K |
| 代理商： | SPT7722SIT |
SPT7722
DATA SHEET
Rev. 1.0.2 December 2002
11
Pin Assignments
Pin Definitions
Pin Name
V
IN
+
Pin Number
40
Pin Function Description
Non-Inverted Analog Input; nominally 1 V
PP
;
100k pullup to V
CC
and 100k pulldown to AGND, internally
Inverted Analog Input; nominally 1 V
PP
; 100k pullup to V
CC
and 100k
pulldown to AGND, internally
Data Output Bank A; 3V/5V LVCMOS compatible
Data Output Bank B; 3 V/5V LVCMOS compatible
Non-Inverted Data Output Clock; 3V/5V LVCMOS compatible
Inverted Data Output Clock; 3V/5V LVCMOS compatible
Non-Inverted Clock Input Pin; 100k pulldown to AGND, internally
Inverted Clock Input Pin; 17.5k pullup to V
CC
and 7.5k pulldown to AGND, internally
RESET synchronizes the data sampling and data output bank relationship when in
Dual Channel Mode (DMODE
1
= 0); 100k pulldown to AGND, internally
Inverted RESET Input Pin; 17.5k pullup to V
CC
and 7.5 pulldown to AGND, internally
Internally:
100k pulldown to AGND on DMODE
1
50k pullup to V
CC
on DMODE
2
Data Output Mode Pins:
DMODE
1
= 0, DMODE
2
= 0: Parallel Dual Channel Output
DMODE
1
= 0, DMODE
2
= 1: Interleaved Dual Channel Output
DMODE
1
= 1, DMODE
2
= X: Single Channel Data Output on Bank A
(125 MSPS max)
Power Down Pin; PD = 1 for power-down mode. Outputs set to high impedance in
power-down mode; 100k pulldown to AGND, internally
2.5V Common Mode Voltage Reference Output
+5V Analog Supply
+3V/+5V Digital Output Supply
Analog Ground
V
IN
-
39
DA
0
–DA
7
DB
0
–DB
7
DCLK
OUT
DCLK
OUT
CLK
CLK
RESET
16–9
19–26
28
27
4
3
5
RESET
DMODE
1,2
6
32, 31
PD
2
V
CM
AV
CC
OV
DD
AGND
37
35, 36, 42, 43
7, 17, 30
1, 33, 34,
38, 41, 44
8, 18, 29
DGND
Digital Ground
1
2
3
4
5
6
7
8
9
10
11
1
1
1
1
1
1
1
1
2
2
2
23
24
25
26
27
28
29
30
31
32
33
3
3
3
3
3
3
4
4
4
4
4
AGND
PD
CLK
RESET
DGND
OV
DD
DA
6
DA
7
(MSB)
DA
5
D
4
D
3
D
0
O
D
D
D
0
D
1
D
2
D
3
DB
4
DB
5
DB
7
(MSB)
DB
6
DGND
AGND
OV
DD
DMODE
2
V
I
+
V
C
A
C
A
A
SPT7722
TOP VIEW
44L TQFP
D
2
D
1
DCLK
OUT
DMODE
1
A
C
V
I
–
A
A
A
C
A
C
CLK
RESET
DCLK
OUT
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| SPT7722SIT_Q | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8 BIT_ 250 MSPS ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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| SPT7725 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:8-BIT, 300 MSPS, FLASH A/D CONVERTER |
| SPT7725AIG | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:8-BIT, 300 MSPS, FLASH A/D CONVERTER |
| SPT7725AIJ | 制造商:CADEKA 制造商全稱:CADEKA 功能描述:8-BIT, 300 MSPS, FLASH A/D CONVERTER |
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