VCA2615PFBR Datasheet, PDF (9/33 Pages) Texas Instruments – Dual, Low-Noise

VCA2615
www.ti.com
SBOS316D − JULY 2005 − REVISED OCTOBER 2008
TYPICAL CHARACTERISTICS (continued)
All specifications at TA = +25°C, VDD = 5V, load resistance = 500Ω on each output to ground; the input to the preamp (LNP) is single-ended;
fIN = 5MHz, LNP Gain (G1, G2) = 10, H/L = 0, V_CNTL = 2.5V; VCA output is 1VPP differential; CA, CB = 3.9µF, unless otherwise noted.
1000
100
INPUT−REFERRED NOISE vs V_CNTL
(Hi VGA Gain, R_S = 0Ω)
LNP 00
LNP 01
10
LNP 10
LNP 11
1
NOISE FIGURE vs V_CNTL
(Lo VGA Gain, R_S = 0Ω)
100
LNP 00
LNP 01
LNP 10
10
LNP 11
0.1
V_CNTL (V)
Figure 19
NOISE FIGURE vs V_CNTL
(Hi VGA Gain, R_S = 0Ω)
100
LNP 00
LNP 01
LNP 10
10
LNP 11
1
1000
V_CNTL (V)
Figure 20
OUTPUT−REFERRED NOISE vs V_CNTL
(VGA Only, R_S = 0Ω)
100
10
1
V_CNTL (V)
Figure 21
1000
INPUT−REFERRED NOISE vs V_CNTL
(VGA Only)
High Gain
100
Lo Gain
10
1
V_CNTL (V)
Figure 22
INPUT−REFERRED NOISE vs FREQUENCY
(VGA Only)
10
1
V_CNTL (V)
Figure 23
1
1
10
Frequency (MHz)
Figure 24
9