参数资料
型号: LT5554IUH#PBF
厂商: Linear Technology
文件页数: 23/32页
文件大小: 0K
描述: IC VGA DIG CONTROL 32-QFN
标准包装: 73
应用: 可变增益(VGA)
电路数: 1
-3db带宽: 1GHz
电流 - 电源: 200mA
电压 - 电源,单路/双路(±): 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 32-WFQFN 裸露焊盘
供应商设备封装: 32-QFN 裸露焊盘(5x5)
包装: 管件
产品目录页面: 1322 (CN2011-ZH PDF)
LT5554
3
5554f
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNIT
Dynamic Performance
BW
Large Signal –3dB Bandwidth
All Gain Settings (Note 7)
LF – 1000
MHz
OP1dB
Output 1dB Compression Point
All Gain Settings, ROUT = 130Ω, 70MHz
20
dBm
GM
Amplier Transconductance at GMAX
FIN = 100MHz
0.15
S
CMRR
Common Mode Gain to Single-Ended
Output
FIN = 100MHz, Figure 19
–6
dB
S12
Reverse Isolation
FIN = 100MHz
FIN = 400MHz
–86
–78
dB
Overdrive Recovery Time
5ns Input Pulse, VOUT within ±10%
5
ns
Noise/Linearity Performance Two Tones, POUT = 4dBm/Tone (2VP-P into 50Ω), Δf = 200kHz
IIP3
Input Third Order Intercept Point
GMAX, FIN = 200MHz
GMAX –3.875dB, FIN = 200MHz
27
30
dBm
OIP3
Output Third Order Intercept Point for
Max-Gain
FIN = 100MHz
FIN = 200MHz
45
46
dBm
IMD3
Intermodulation Product for Max-Gain
FIN = 100MHz
FIN = 200MHz
–82
–84
dBc
OIP3
Output Third Order Intercept Point for
–3.875dB STEP
FIN = 100MHz
FIN = 200MHz
44
40
dBm
OIP3
Output Third Order Intercept Point
GMAX, F1 = 88MHz, F2 = 112MHz
GMAX –3.875dB, F1 = 88MHz, F2 = 112MHz
40.5
38
47
44
dBm
HD3
Third Harmonic Distortion
Pout = 10dBm, FIN = 100MHz, GMAX
–62
dBc
VONOISE
Output Noise Noise Spectral Density
GMAX, FIN = 200MHz
GMAX –3.875dB, FIN = 200MHz
10.7
7.3
nV/√Hz
NF
Noise Figure
GMAX, FIN = 200MHz
GMAX –3.875dB, FIN = 200MHz
10
10.5
dB
RTI
Input Referred Noise Spectral Density
(RMS) (Note 5)
GMAX, FIN = 200MHz
GMAX –3.875dB, FIN = 200MHz
1.34
1.42
nV/√Hz
SFDR
Spurious Free Dynamic Range in 1Hz
BW.
GMAX, FIN = 200MHz
GMAX –3.875dB, FIN = 200MHz
128
129
dBm/Hz
Amplier Voltage Gain and Gain Step
GMAX
Maximum Voltage and Power Gain
FIN = 112MHz
15.3
17.6
19.7
dB
GMIN
Minimum Voltage and Power Gain
FIN = 100MHz
1.725
dB
GSTEP
Gain Step Size (Note 9)
Except For –4dB, –8dB, –12dB Steps
For –4dB, –8dB, –12dB Steps
0.125
0.25
0.35
dB
GDERROR
Group Delay Step Accuracy
FIN = 100MHz
10
ps
AMPLIFIER I/O Differential IMPEDANCE
RIN
Input Resistance
FIN = 100MHz, GMAX to GMAX –3.875dB
FIN = 100MHz, GMAX –4dB to GMIN
43
47
Ω
CIN
Input Capacitance
FIN = 100MHz
2.8
pF
RO
Output Resistance
FIN = 100MHz
400
Ω
CO
Output Capacitance
FIN = 100MHz
1.9
pF
AC ELECTRICAL CHARACTERISTICS (R
OUT = 50Ω) Specications are at TA = 25°C. VCC = 5V, VCCO = 5V,
ENB = 3V, MODE = 5V, STROBE = 2.2V, VIH = 2.2V, VIL = 0.6V, maximum gain (Notes 3, 6), (Test circuits shown in Figure 16), unless
otherwise noted.
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