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參數(shù)資料
| 型號： | TQ6124 |
| 廠商： | TriQuint Semiconductor,Inc. |
| 英文描述： | 1 Gigasample/sec, 14-bit Digital-to-Analog Convertor |
| 中文描述： | 1 Gigasample /秒，14位數(shù)字到模擬轉(zhuǎn)換器 |
| 文件頁數(shù)： | 6/9頁 |
| 文件大小： | 177K |
| 代理商： | TQ6124 |
TQ6124
6
For additional information and latest specifications, see our website:
www.triquint.com
Operating Notes
(continued)
Power Supplies
Optimized performance depends on clean supplies.
Utilize very low impedance negative supplies that are
decoupled over a wide frequency range. The analog and
digital grounds should be isolated at the chip, connecting
to a single point ground on the circuit board.
ECL Reference
The single-ended data inputs switch against an internal
reference of -1.3V (nominal). Variations among input
buffers, or in V
TT
, may benefit from adjustments in the
reference. The ECL reference pin may be driven externally.
Its equivalent load is 400 ohms to –1.3V (nominal).
Trim Adjustments
The external trim adjustments for the midrange bits
and the LSBs is optional. Trimming is performed by
monitoring the attribute of greatest concern (INL, DNL,
Spurious levels) while minimizing the unwanted effects.
Trim inputs should be left open if not used.
Signals
Figure 6. TQ6124 Pinout
33
32
31
30
29
28
27
26
25
V
SS
D
2
D
1
D (LSB)
DGND
DGND
ECLref
LSBtrim
Midtrim
24
23
V
AA
V
AA
4
S
4
9
4
8
4
7
4
3
6
3
5
3
3
3
3
4
3
S
V
S
1
A
I
R
1
A
N
O
1
V
O
1
A
A
V
R
2
V
S
2
V
A
2
V
SS
D
10
D
11
D
12
D
13
(MSB) 5
DGND
DGND
DGND
CLK
1
2
3
4
6
7
8
9
NCLK
V
SS
10
11
TQ6124
Top View
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