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AD8324ACPZ Datasheet(数据表) 3 Page - Analog Devices

部件型号  AD8324ACPZ
说明  3.3 V Upstream Cable Line Driver
下载  16 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
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AD8324
Rev. A | Page 3 of 16
SPECIFICATIONS
TA = 25°C, VCC = 3.3 V, RL = RIN = 75 Ω, VIN (Differential) = 27.5 dBmV, unless otherwise noted. The AD8324 is characterized using a 1:1
transformer1 at the device output.
Table 1.
Parameter
Conditions
Min
Typ
Max
Unit
INPUT CHARACTERISTICS
Specified AC Voltage
Output = 61 dBmV, Max Gain
27.5
dBmV
Input Resistance
Single-Ended Input
550
Ω
Differential Input
1100
Ω
Input Capacitance
2
pF
GAIN CONTROL INTERFACE
Voltage Gain Range
58
59.0
60
dB
Max Gain
Gain Code = 60 Dec
32.5
33.5
34.5
dB
Min Gain
Gain Code = 1 Dec
–26.5
–25.5
–24.5
dB
Output Step Size2
0.6
1.0
1.4
dB/LSB
Output Step Size Temperature Coefficient
TA = –40°C to +85°C
±0.004
dB/°C
OUTPUT CHARACTERISTICS
Bandwidth (–3 dB)
All Gain Codes (1–60 Decimal Codes)
100
MHz
Bandwidth Roll-Off
f = 65 MHz
1.7
dB
1 dB Compression Point3
Max Gain, f = 10 MHz, Output Referred
19.6
21
dBm
Min Gain, f = 10 MHz, Input Referred
2.1
3.7
dBm
Output Noise2
Max Gain
f = 10 MHz
157
166
nV/√Hz
Min Gain
f = 10 MHz
1.3
1.5
nV/√Hz
Transmit Disable
f = 10 MHz
1.1
1.2
nV/√Hz
Noise Figure2
Max Gain
f = 10 MHz
15.5
16.0
dB
Differential Output Impedance
TX Enable and TX Disable
75 ± 30%4
Ω
OVERALL PERFORMANCE
Second-Order Harmonic Distortion5, 3
f = 33 MHz, VOUT = 61 dBmV @ Max Gain
–66
–60
dBc
f = 65 MHz, VOUT = 61 dBmV @ Max Gain
–58
–53
dBc
Third-Order Harmonic Distortion5, 3
f = 21 MHz, VOUT = 61 dBmV @ Max Gain
–59
–57.5
dBc
f = 65 MHz, VOUT = 61 dBmV @ Max Gain
–54
–52.5
dBc
ACPR 2, 6
–61
–58
dBc
Isolation (Transmit Disable)2
Max Gain, f = 65 MHz
–75
–70
dB
POWER CONTROL
TX Enable Settling Time
Max Gain, VIN = 0
2.5
μs
TX Disable Settling Time
Max Gain, VIN = 0
3.8
μs
Output Switching Transients3
Equivalent Output = 31 dBmV
2.5
6
mV p-p
Equivalent Output = 61 dBmV
27
71
mV p-p
Output Settling
Due to Gain Change
Min to Max Gain
60
ns
Due to Input Step Change
Max Gain, VIN = 27.5 dBmV
30
ns
POWER SUPPLY
Operating Range
3.13
3.3
3.47
V
Quiescent Current
Max Gain
195
207
235
mA
Min Gain
25
39
50
mA
Transmit Disable (TXEN = 0)
1
2.5
4
mA
SLEEP Mode (Power-Down)
30
500
μA
OPERATING TEMPERATURE RANGE
LFCSP
–40
+85
°C
QSOP
–25
+70
°C
1 TOKO 458PT-1556 used for above specifications. Typical insertion loss of 0.5 dB @ 10 MHz.
2 Guaranteed by design and characterization to ±6 sigma for TA = 25°C.
3 Guaranteed by design and characterization to ±3 sigma for TA = 25°C.
4 Measured through a 1:1 transformer.
5 Specification is worst case over all gain codes.
6 VIN = 27.5 dBmV, QPSK modulation, 160 kSPS symbol rate.




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