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參數(shù)資料
| 型號： | TDA9910 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | ADC |
| 英文描述： | 12-bit, up to 80 Msample/s, Analog-to-Digital Converter (ADC) direct/ultra high IF sampling |
| 中文描述： | 12位，高達(dá)80 Msample /秒，模擬到數(shù)字轉(zhuǎn)換器（ADC）直接/超高IF采樣 |
| 文件頁數(shù)： | 10/21頁 |
| 文件大?。?/td> | 138K |
| 代理商： | TDA9910 |
9397 750 14418
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
Objective data sheet
Rev. 02 — 9 December 2004
10 of 21
Philips Semiconductors
TDA9910
12-bit, up to 80 Msample/s, Analog-to-Digital Converter (ADC)
[8]
Intermodulation measured relative to either tone with analog input frequencies f
i1
and f
i2
. The two input signals have the same amplitude
and the total amplitude of both signals provides full-scale to the converter (
6 dB below full-scale for each input signal).
d3
(IM3)
is the ratio of the RMS value of either input tone to the RMS value of the worst case third order intermodulation product; d2
(IM2)
is
the ratio of the RMS value of either input tone to the RMS value of the worst case second order intermodulation product.
[1]
X = don’t care.
Table 6:
V
IN(p-p)
V
INN(p-p)
= 1.9 V; V
FSIN
= V
CCA1
1.77 V; typical values to AGND.
Code
V
IN(p-p)
(V)
(V)
Underflow
< 2.675
> 3.625
0
0
2.675
3.625
1
1
-
-
1
...
...
...
...
2047
3.15
3.15
1
...
...
...
...
4094
-
-
1
4095
3.625
2.675
1
Overflow
> 3.625
< 2.675
0
Output coding with differential inputs
V
INN(p-p)
IR
Binary outputs
(D11 to D0)
0000 0000 0000
0000 0000 0000
0000 0000 0001
...
0111 1111 1111
...
1111 1111 110
1111 1111 111
1111 1111 111
Two’s complement outputs
(D11 to D0)
1000 0000 0000
1000 0000 0000
1000 0000 0001
...
1111 1111 111
...
0111 1111 110
0111 1111 111
0111 1111 111
Table 7:
Two’s complement output
(OTC)
0
1
X
[1]
Mode selection
Chip enable
input (CE_N)
0
0
1
Data output (D0 to D11; IR)
binary; active
two’s complement; active
high-impedance
Fig 3.
Output timing diagram.
IN
CLK
0.5 V
n
D0 to D11
V
CCO
0.5 V
50 %
data
n
1
data
n
data
n
+
1
t
d(o)
t
d(s)
t
h(o)
001aaa513
sample
n
sample
n
+
1
sample
n
+
2
sample
n
+
3
sample
n
+
4
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