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參數資料
| 型號： | LTC6412IUF#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 22/24頁 |
| 文件大小： | 0K |
| 描述： | IC VGA ANLG-CNTRL 31DB 24-QFN |
| 標準包裝： | 2,500 |
| 放大器類型： | 可變增益 |
| 電路數： | 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： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 24-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 24-QFN 裸露焊盤（4x4） |
| 包裝： | 帶卷 (TR) |
LTC6412
7
6412fa
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime. RF input power rating is guaranteed by design and
engineering characterization, but not production tested. The absolute
maximum continuous RF input power shall not exceed +15dBm
Note 2: The LTC6412C/LTC6412I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 3: The LTC6412C is guaranteed to meet specied performance from
0°C to 70°C. It is designed, characterized and expected to meet specied
performance from –40°C and 85°C but is not tested or QA sampled
at these temperatures. The LT6412I is guaranteed to meet specied
performance from –40°C to 85°C.
Note 4: Power gain is dened at ZSOURCE = 50Ω and ZLOAD = 200Ω.
Voltage gain for this test condition is 6dB higher than the stated power
gain.
Note 5: en can be calculated from 50Ω NF with the formula:
en = √{4kT(50)(10NF/10 – 1)}
where
en = Input referred voltage noise in V/√Hz
NF = 50Ω noise gure in dB
k = Boltzmann’s constant = 1.38 10–23J/°K
T = Absolute temperature in °K = °C + 273
Note 6: P1dB compression of the output amplier cannot be achieved
in the minimum gain state while complying with the absolute maximum
rating for input RF power.
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
380MHz Signal
GMAX
Maximum Gain
–VG = 0V, Test Circuit B
17
dB
GMIN
Minimum Gain
–VG = 1.2V, Test Circuit B
–14
dB
GRANGE
Gain Range
GMAX-GMIN
31
dB
IM3
Third-Order Intermodulation
f1 = 379.5MHz, f2 = 380.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
–72
dBc
OIP3
Output Third-Order Intercept
f1 = 379.5MHz, f2 = 380.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
30
dBm
P1dBGMAX
Output 1dB Compression Point at Max Gain
–VG = 0V (Note 6)
11
dBm
NFGMAX
Noise Figure at Maximum Gain
–VG = 0V (Note 5)
10.5
dB
NFGMIN
Noise Figure at Minimum Gain
–VG = 1.2V (Note 5)
42
dB
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