參數(shù)資料
型號(hào)： CLC5957PCASM
廠(chǎng)商： National Semiconductor Corporation
英文描述： 12-bit, 70MSPS Broadband Monolithic A/D Converter
中文描述： 12位，70MSPS寬帶單片A / D轉(zhuǎn)換
文件頁(yè)數(shù)： 6/12頁(yè)
文件大?。?/td> 631K
代理商： CLC5957PCASM
http://www.national.com
6
CLC5957 Pin Definitions
A
IN
,
A
IN
(Pin 13, 14) Differential input with a common mode voltage
of +2.4V. The ADC full scale input is 1.024V
pp
on each of
the complimentary input signals.
ENCODE,
ENCODE
(Pin 9, 10) Differential clock where ENCODE
initiates a new
data conversion cycle on each rising edge.
Logic for these
inputs are 50% duty cycle universal differential signal
(>200mV).
The clock input is internally biased to V
CC
/2 with
a termination impedance of 2.5k
.
D0-D11
(Pins 30-34, 39-45) Digital data outputs are CMOS and
TTL compatible. D0 is the LSB and D11 is the MSB. MSB
is inverted. Output coding is two’s complement.
DAV
(Pin 27) Data Valid Clock. Data is valid on rising edge.
OUTLEV
(Pin 28) Output Logic 3.3V or 2.5V option.
Open = 3.3V, GND = 2.5V.
V
CM
(Pin 21) Internal common mode voltage reference.
Nominally +2.4V. Can be used for the input common
mode voltage. This voltage is derived from an internal
bandgap reference.
GND
(Pins 1-4, 8, 11, 12, 15, 19, 20, 23-26, 29, 35, 36, 47, 48)
circuit ground.
+AV
CC
(Pins 5-7, 16-18, 22,) +5V power supply for the analog
section. Bypass to ground with a 0.1
μ
F capacitor.
+DV
CC
(Pin 37, 38, 46) +5V power supply for the digital section.
Bypass to ground with a 0.1
μ
F capacitor.
Physical Dimensions
Symbol
Min
Max
Notes
A
–
1.10
A1
0.05
0.15
A2
0.80
1.05
b
0.17
0.27
b1
0.17
0.23
c
0.09
0.20
c1
0.09
0.16
D
12.40
12.60
2
E
8.1 BSC
E1
6.00
6.20
2
e
0.50 BSC
L
0.50
0.75
L1
1.00 REF
R1
0.127
Notes:
1. All dimensions are in millimeters.
2. Dimensions D and E1 do not include mold protrusion.
Allowable protrusion is 0.20mm per side.
1
GND
48
GND
2
GND
47
GND
3
GND
46
+DV
CC
4
GND
45
D11 (MSB)
5
+AV
CC
44
D10
6
+AV
CC
43
D9
7
+AV
CC
42
D8
8
GND
41
D7
9
ENCODE
40
D6
10
ENCODE
39
D5
11
GND
38
+DV
CC
12
GND
37
+DV
CC
13
A
IN
36
GND
14
A
IN
35
GND
15
GND
34
D4
16
+AV
CC
33
D3
17
+AV
CC
32
D2
18
+AV
CC
31
D1
19
GND
30
D0 (LSB)
20
GND
29
GND
21
V
CM
28
OUTLEV
22
+AV
CC
27
DAV
23
GND
26
GND
24
GND
25
GND
CLC5957
相關(guān)PDF資料
PDF描述
CLC5957 12-bit, 70MSPS Broadband Monolithic A/D Converter
CLC5957MTD 12-bit, 70MSPS Broadband Monolithic A/D Converter
CLC5958SLB 14-bit, 52MSPS A/D Converter
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CLC5958 14-bit, 52MSPS A/D Converter(14位52 MSPSA/D轉(zhuǎn)換器)
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