AC ELECTRICAL CHARACTERISTICS The l denotes spe" />
參數(shù)資料
型號： LTC6412CUF#PBF
廠商： Linear Technology
文件頁數(shù)： 20/24頁
文件大小： 0K
描述： IC VGA ANLG-CNTRL 31DB 24-QFN
標(biāo)準(zhǔn)包裝： 91
放大器類型： 可變增益
電路數(shù)： 1
輸出類型： 差分
-3db帶寬： 800MHz
電流 - 電源： 110mA
電流 - 輸出 / 通道： 70mA
電壓 - 電源，單路/雙路(±)： 3 V ~ 3.6 V
工作溫度： 0°C ~ 70°C
安裝類型： 表面貼裝
封裝/外殼： 24-WFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 24-QFN 裸露焊盤（4x4）
包裝： 管件
LTC6412
5
6412fa
AC ELECTRICAL CHARACTERISTICS The l denotes specications that apply over the full operating
temperature range, otherwise specications are at TA = 25°C. Typical AC electrical performance measured in demo board DC1464A
(Figure 3, Test Circuit A) unless otherwise noted. Default operating conditions are VCC = 3.3V, EN = 0.8V, SHDN = 2.2V, +VG tied to VREF
(negative gain slope mode), and ZSOURCE = ZLOAD = 50Ω unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Small Signal
BWGMAX
–3dB Bandwidth for Sdd21 at Maximum Gain –VG = 0V, Test Circuit B
800
MHz
BWGMIN
–3dB Bandwidth for Sdd21 at Minimum Gain
–VG = 1.2V, Test Circuit B
800
MHz
Sdd11
Input Match at ZSOURCE = 50Ω Differential
–VG = 0V to 1.2V, 10MHz-500MHz,
Test Circuit B
–20
dB
Sdd22
Output Match at ZLOAD = 200Ω Differential
–VG = 0V to 1.2V, 10MHz-250MHz,
Test Circuit B
–10
dB
Sdd12
Reverse Isolation
–VG = 0V to 1.2V, 10MHz-500MHz,
Test Circuit B
-80
dB
Transient Response
tSTEP(6dB)
6dB Gain Step Response Time
Peak POUT = +4dBm, –VG = 0.2V to 0.4V,
Time to Settle Within 1dB of Final POUT
0.4
μs
tSTEP(12dB)
12dB Gain Step Response Time
Peak POUT = +4dBm, –VG = 0.2V to 0.6V,
Time to Settle Within 1dB of Final POUT
0.4
μs
tSTEP(20dB)
20dB Gain Step Response Time
Peak POUT = +4dBm, –VG = 0.2V to 0.8V,
Time to Settle Within 1dB of Final POUT
0.4
μs
tOVDR
Overdrive Recovery Time at 70MHz
–VG = 0V, PIN = +3dBm to –17dBm, Time to
Settle Within 1dB of Final POUT
25
ns
tOFF
Output Amplier Disable Time
POUT = 0dBm at EN = 0V, –VG = 0V,
EN = 0V to 3V, Time for POUT ≤ –20dBm
25
ns
tON
Output Amplier Enable Time
POUT = 0dBm at EN = 0V, –VG = 0V, EN = 3V to
0V, Time for POUT ≥ –1dBm
20
ns
70MHz Signal
GMAX
Maximum Gain
–VG = 0V, Test Circuit B
17
dB
GMIN
Minimum Gain
–VG = 1.2V, Test Circuit B
–15
dB
GRANGE
Gain Range
GMAX-GMIN
32
dB
HD2
Second Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–80
dBc
HD3
Third Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–80
dBc
IM3
Third-Order Intermodulation
f1 = 69.5MHz, f2 = 70.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
–90
dBc
OIP3
Output Third-Order Intercept
f1 = 69.5MHz, f2 = 70.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
39
dBm
P1dBGMAX
Output 1dB Compression Point at Max Gain
–VG = 0V (Note 6)
13
dBm
NFGMAX
Noise Figure at Maximum Gain
–VG = 0V (Note 5)
10
dB
NFGMIN
Noise Figure at Minimum Gain
–VG = 1.2V (Note 5)
42
dB
140MHz Signal
GMAX
Maximum Gain
–VG = 0V, Test Circuit B
17
dB
GMIN
Minimum Gain
–VG = 1.2V, Test Circuit B
–15
dB
GRANGE
Gain Range
GMAX-GMIN
32
dB
HD2
Second Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–80
dBc
HD3
Third Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–75
dBc
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