LTC6412
6
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
IM3
Third-Order Intermodulation
f1 = 139.5MHz, f2 = 140.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
–88
dBc
OIP3
Output Third-Order Intercept
f1 = 139.5MHz, f2 = 140.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
38
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
240MHz 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
HD2
Second Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–70
dBc
HD3
Third Harmonic Distortion
POUT = 0dBm, –VG = 0V to 1.0V
–70
dBc
IM3
Third-Order Intermodulation
f1 = 239.5MHz, f2 = 240.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
–82
dBc
OIP3
Output Third-Order Intercept
f1 = 239.5MHz, f2 = 240.5MHz,
POUT = –6dBm/Tone, –VG = 0V to 1.0V
35
dBm
P1dBGMAX
Output 1dB Compression Point at Max Gain
–VG = 0V (Note 6)
12
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
280MHz/320MHz Signal
GMAX
Maximum Gain
f = 320MHz, POUT = –3dBm, –VG = 0V
16.9
dB
GMID
Medium Gain
f = 320MHz, POUT = –5dBm, –VG = 0.6V
1.5
dB
GMIN
Minimum Gain
f = 320MHz, POUT = –5dBm, –VG = 1.2V
–14.2
dB
GRANGE
Gain Range
320MHz, GMAX-GMIN
29.7
31.1
32.5
dB
IM3GMAX
Third-Order Intermodulation at Max Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –3dBm/Tone, –VG = 0V
–72
dBc
IM3GMID
Third-Order Intermodulation at Mid Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –5dBm/Tone, –VG = 0.6V
–71
–65
dBc
IM3GMIN
Third-Order Intermodulation at Min Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –5dBm/Tone, –VG = 1.2V
–56
dBc
OIP3GMAX
Output Third-Order Intercept at Max Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –3dBm/Tone, –VG = 0V
31.0
dBm
OIP3GMID
Output Third-Order Intercept at Mid Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –5dBm/Tone, –VG = 0.6V
26.0
30.5
dBm
OIP3GMIN
Output Third-Order Intercept at Min Gain
f1 = 280MHz, f2 = 320MHz,
POUT = –5dBm/Tone, –VG = 1.2V
23.0
dBm