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參數(shù)資料
| 型號： | TDA8768 |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | 12-bit high-speed Analog-to-Digital Converter ADC |
| 中文描述： | 12位高速模擬數(shù)字轉(zhuǎn)換器模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 8/20頁 |
| 文件大?。?/td> | 144K |
| 代理商： | TDA8768 |
1998 Aug 26
8
Philips Semiconductors
Preliminary specification
12-bit high-speed Analog-to-Digital
Converter (ADC)
TDA8768
Voltage controlled regulator input V
ref
(referenced to AGND);
note 2
V
ref(FS)
I
ref
V
I(p-p)
V
I(p-p)
input voltage amplitude
(peak-to-peak value)
full-scale fixed voltage
input current
V
CCA
= 5 V
3.175
0.5
2.0
10
V
μ
A
V
V
ref
= V
CCA
1.825 V
Outputs (referenced to OGND)
D
IGITAL OUTPUTS
D11
TO
D0
AND
IR (
REFERENCED TO
OGND)
V
OL
V
OH
I
o
LOW-level output voltage
HIGH-level output voltage
output current in 3-state
I
OL
= 2 mA
I
OH
=
0.4 mA
output level between 0.5 V
and V
CCO
0
V
CCO
0.5
20
0.5
V
CCO
+20
V
V
μ
A
Switching characteristics
C
LOCK FREQUENCY
f
CLK
; see Fig.3
f
CLK(min)
minimum clock frequency
f
CLK(max)
maximum clock frequency
TDA8768H/4
TDA8768H/5
t
CLKH
clock pulse width HIGH
t
CLKL
clock pulse width LOW
Analog signal processing; 50% clock duty factor; V
I
V
I
= 2.0 V; V
ref
= V
CCA
1.825 V;
see Table 1
SH = HIGH
2
MHz
40
55
8.5
8.5
MHz
MHz
ns
ns
L
INEARITY
INL
DNL
integral non-linearity
differential non-linearity
f
CLK
= 4 MHz; f
i
= 400 kHz
f
CLK
= 4 MHz; f
i
= 400 kHz;
no missing code
V
CCA
= V
CCD
= V
CCO
= 5 V;
T
amb
= 25
°
C; V
I
= V
I
;
output code = 2047
V
CCA
= V
CCD
= V
CCO
= 5 V;
T
amb
= 25
°
C;
V
I(p-p)
V
I(p-p)
= 2.0 V
±
2.0
±
0.6
±
4.5
±
1.0
LSB
LSB
E
offset
offset error
tbf
11
tbf
mV
E
G(FS)
gain error amplitude
(full scale); spread from
device to device
5
+5
%
B
ANDWIDTH
(f
CLK
= 55 MHz); note 3
B
analog bandwidth
3 dB; full scale input
tbf
190
MHz
H
ARMONICS
(f
CLK
= 40 MHz)
h
fund(FS)
fundamental harmonics
(full scale)
harmonics (full scale);
all components
second harmonic
third harmonic
total harmonic distortion
f
i
= 4.43 MHz
0
dB
h
tot(FS)
f
i
= 4.43 MHz
75
70
66
dB
dB
dB
THD
f
i
= 4.43 MHz; note 4
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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