TYPICAL CHARACTERISTICS (Cont.)
At TA = +25°C, VDDA = VDDB = VDDR = +5V, load resistance = 500Ω on each output to ground, MGS = 011, LNP = 22dB and fIN = 5MHz, unless otherwise noted.
The input to the preamp (LNP) is single-ended, and the output from the VCA is single-ended, unless otherwise noted. This results in a 6dB reduction in signal
amplitude compared to differential operation.
DISTORTION vs FREQUENCY
MGS = 111
DISTORTION vs FREQUENCY
MGS = 000
2VPP DIFFERENTIAL
1VPP SINGLE-ENDED
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
VC = 0.2, H2
VC = 0.2, H3
VC = 0.2, H3
VC = 0.2, H2
VC = 3.0, H2
VC = 3.0, H3
VC = 3.0, H2
VC = 3.0, H3
100k
1M
10M
100k
1M
Frequency (Hz)
10M
Frequency (Hz)
DISTORTION vs FREQUENCY
MGS = 011
DISTORTION vs FREQUENCY
MGS = 111
1VPP SINGLE-ENDED
1VPP SINGLE-ENDED
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
–30
–35
–40
–45
–50
–55
–60
–65
–70
–75
–80
–85
–90
VC = 0.2, H3
VC = 0.2, H2
VC = 0.2, H2
VC = 0.2, H3
VC = 3.0, H2
VC = 3.0, H2
VC = 3.0, H3
VC = 3.0, H3
100k
1M
10M
100k
1M
Frequency (Hz)
10M
Frequency (Hz)
DISTORTION vs VCACNTL
1VPP SINGLE-ENDED
DISTORTION vs VCACNTL
2VPP DIFFERENTIAL
–45
–50
–55
–60
–65
–70
–75
–80
–45
–50
–55
–60
–65
–70
–75
–80
MGS = 111, H2
MGS = 111, H2
MGS = 011, H2
MGS = 000, H2
MGS = 011, H2
MGS = 000, H2
MGS = 011, H3
MGS = 000, H3
MGS = 111, H3
MGS = 111, H3
MGS = 011, H3
MGS = 000, H3
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
VCACNTL (V)
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
VCACNTL (V)
VCA2616, VCA2611
7
SBOS234E
www.ti.com
TAOS [ TEXAS ADVANCED OPTOELECTRONIC SOLUTIONS ]
