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參數資料
| 型號： | AD8327-EVAL |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | 5 V CATV Line Driver Coarse Step Output Power Control |
| 中文描述： | 5伏粗有線電視線路驅動器輸出功率控制步 |
| 文件頁數： | 2/20頁 |
| 文件大小： | 307K |
| 代理商： | AD8327-EVAL |
REV. 0
–2–
AD8327–SPECIFICATIONS
(T
A
= 25 C, V
S
= 5 V, R
L
= 75 , V
IN(DIFFERENTIAL)
= 30 dBmV)
Parameter
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Specified AC Voltage
Noise Figure
Input Resistance
P
OUT
= 60 dBmV, Max Gain
Max Gain, f = 10 MHz
Single-Ended Input
Differential Input
30
13.2
800
1600
2
dBmV
dB
pF
Input Capacitance
GAIN CONTROL INTERFACE
Gain Range
Maximum Gain
Minimum Gain
Gain Scaling Factor
47.16
29
–19.16
48.16
30
–18.16
6.02
49.16
31
–17.16
dB
dB
dB
dB/Major
Carry
Gain Code = 10000000 (128 Decimal)
Gain Code = 00000000 (0 Decimal)
OUTPUT CHARACTERISTICS
Bandwidth (–3 dB)
Bandwidth Roll-Off
Bandwidth Peaking
Output Noise Spectral Density
All Gain Codes
f = 65 MHz
All Gain Codes
Max Gain, f = 10 MHz
160
0.4
0
–32
MHz
dB
dB
dBmV in
160 kHz
dBmV in
160 kHz
dBmV in
160 kHz
dBm
Min Gain, f = 10 MHz
–47
Transmit Disable Mode (TXEN = 0),
f = 10 MHz
Max Gain, f = 10 MHz
Transmit Enable (TXEN = 1) and
Transmit Disable Mode (TXEN = 0)
–66
1 dB Compression Point
Differential Output Impedance
14.8
75
±
20%
OVERALL PERFORMANCE
Second Order Harmonic Distortion
f = 21 MHz, V
OUT
= 60 dBmV @ Max Gain
f = 42 MHz, V
OUT
= 60 dBmV @ Max Gain
f = 65 MHz, V
OUT
= 60 dBmV @ Max Gain
f = 21 MHz, V
OUT
= 60 dBmV @ Max Gain
f = 42 MHz, V
OUT
= 60 dBmV @ Max Gain
f = 65 MHz, V
OUT
= 60 dBmV @ Max Gain
Adjacent Channel Width = Transmit Channel
Width = 160 K
SYM/SEC
f = 10 MHz, Code to Code
–63
–61
–54
–63
–57
–57
–62
dBc
dBc
dBc
dBc
dBc
dBc
dBc
Third Order Harmonic Distortion
Adjacent Channel Power
Gain Linearity Error
Output Settling
Due to Gain Change (T
GS
)
Due to Input Change
Isolation in Transmit Disable Mode
±
0.25
dB
Min to Max Gain
Max Gain, V
IN
= 30 dBmV
Max Gain, TXEN = 0 V, f = 42 MHz,
V
IN
= 30 dBmV
60
30
–52
ns
ns
dBc
POWER CONTROL
Transmit Enable Settling Time (T
ON
)
1
Transmit Disable Settling Time (T
OFF
)
1
Transmit Enable Settling Time (T
ON
)
2
Transmit Disable Settling Time (T
OFF
)
2
Between Burst Transients
2
Max Gain, V
IN
= 0 V
Max Gain, V
IN
= 0 V
Max Gain, V
IN
= 0 V
Max Gain, V
IN
= 0 V
Equivalent Output = 31 dBmV
Equivalent Output = 60 dBmV
300
40
2
1.7
3
25
2
ns
ns
μ
s
μ
s
mV p-p
mV p-p
μ
s
Ramp Setting
2
POWER SUPPLY
Operating Range
Quiescent Current
4.75
75
40
10
3
5
105
60
15
5
5.25
135
80
20
7
V
mA
mA
mA
mA
°
C
Transmit Enable Mode (TXEN = 1) @ Dec 128
Transmit Enable Mode (TXEN = 1) @ Dec 0
Transmit Disable Mode @ All Gain Codes
Sleep Mode @ All Gain Codes
OPERATING TEMPERATURE
RANGE
–40
+85
NOTES
1
For Transmit Enable or Transmit Disable transitions using a 0 pF capacitor (at CXR pin) to ground.
2
For Transmit Enable or Transmit Disable transitions using a 100 pF capacitor (at CXR pin) to ground.
Specifications subject to change without notice.
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