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參數(shù)資料
| 型號： | ADV7179 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Chip Scale PAL/NTSC Video Encoder with Advanced Power Management |
| 中文描述： | 芯片級PAL / NTSC制式視頻編碼器與高級電源管理 |
| 文件頁數(shù)： | 6/52頁 |
| 文件大小： | 488K |
| 代理商： | ADV7179 |
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ADV7174/ADV7179
3.3 V SPECIFICATIONS
V
AA
= 3.0 V–3.6 V
1
, V
REF
= 1.235 V, R
SET
= 150 . All specifications T
MIN
to T
MAX2
, unless otherwise noted.
Table 3.
Parameter
STATIC PERFORMANCE
3
Resolution (Each DAC)
Accuracy (Each DAC)
Integral Nonlinearity
Differential Nonlinearity
DIGITAL INPUTS
3
Input High Voltage, V
INH
Input Low Voltage, V
INL
Input Current, I
IN3, 4
Input Capacitance, C
IN
DIGITAL OUTPUTS
3
Output High Voltage, V
OH
Output Low Voltage, V
OL
Three-State Leakage Current
Three-State Output Capacitance
ANALOG OUTPUTS
3
Output Current
4, 5
Output Current
6
DAC-to-DAC Matching
Output Compliance, V
OC
Output Impedance, R
OUT
Output Capacitance, C
OUT
POWER REQUIREMENTS
3, 7
V
AA
Normal Power Mode
I
DAC
(Max)
8
I
DAC
(Min)
8
I
CCT9
Low Power Mode
I
DAC
(Max)
8
I
DAC
(Min)
8
I
CCT9
Sleep Mode
I
DAC10
I
CCT11
Power Supply Rejection Ratio
Rev. A | Page 6 of 52
Conditions
1
R
SET
= 300
Guaranteed Monotonic
V
IN
= 0.4 V or 2.4 V
I
SOURCE
= 400 μA
I
SINK
= 3.2 mA
R
SET
= 150 , R
L
= 37.5
R
SET
= 1041 , R
L
= 262.5
I
OUT
= 0 mA
R
SET
= 150 , R
L
= 37.5
R
SET
= 1041 , R
L
= 262.5
COMP = 0.1 μF
Min
2
2.4
33
0
3.0
Typ
± 0.6
10
10
34.7
5
2.0
30
3.3
115
20
35
62
20
35
0.1
0.001
0.01
Max
10
± 1
0.8
± 1
0.4
10
37
1.4
30
3.6
120
0.5
Unit
Bits
LSB
LSB
V
V
μA
pF
V
V
μA
pF
mA
mA
%
V
pF
V
mA
mA
mA
mA
mA
mA
μA
μA
%/%
1
The max/min specifications are guaranteed over this range. The max/min values are typical over 3.0 V to 3.6 V.
2
Temperature range T
MIN
to T
MAX
: –40°C to +85°C.
3
Guaranteed by characterization.
4
Full drive into 37.5 load.
5
DACs can output 35 mA typically at 3.3 V (R
SET
= 150 and R
L
= 37.5 ), optimum performance obtained at 18 mA DAC current (R
SET
= 300 and R
L
= 75 ).
6
Minimum drive current (used with buffered/scaled output load).
7
Power measurements are taken with clock frequency = 27 MHz. Max T
J
= 110°C.
8
I
DAC
is the total current (min corresponds to 5 mA output per DAC, max corresponds to 37 mA output per DAC) to drive all three DACs. Turning off individual DACs
reduces I
DAC
correspondingly.
9
I
CCT
(circuit current) is the continuous current required to drive the device.
10
Total DAC current in sleep mode.
11
Total continuous current during sleep mode.
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