LT1993-4 Linear Technology, LT1993-4 Datasheet - Page 9

• Manufacturer Part Number: LT1993-4
• Description: 900MHz Low Distortion - Low Noise Differential Amplifier/ADC Driver
• Manufacturer: Linear Technology

PI FU CTIO S
TYPICAL PERFOR A CE CHARACTERISTICS
V
voltage. Without additional biasing, both inputs bias to
this voltage as well. This input is high impedance.
V
(Normally Tied to 5V). All three pins must be tied to the
same voltage. Bypass each pin with 1000pF and 0.1µF
capacitors as close to the package as possible. Split
supplies are possible as long as the voltage between V
and V
OCM
CCA
–100
–110
–120
–100
–110
–120
U
–10
–20
–90
–10
–20
–90
–30
–40
–50
–60
–70
–80
–30
–40
–50
–60
–70
–80
, V
0
0
EE
(Pin 2): This pin sets the output common mode
30MHz 8192 Point FFT, LT1993-4
Driving LTC2249 14-Bit ADC
0
70MHz 2-Tone 32768 Point FFT
LT1993-4 Driving LTC2249
14-Bit ADC
0
8192 POINT FFT
f
FILTERED OUTPUTS
CCB
IN
is 5V.
= 30MHz, –1dBFS
5
5
U
, V
10
10
CCC
FREQUENCY (MHz)
FREQUENCY (MHz)
32768 POINT FFT
TONE 1 AT 69.5MHz, –7dBFS
TONE 2 AT 70.5MHz, –7dBFS
FILTERED OUTPUTS
15
15
(Pins 3, 10, 1): Positive Power Supply
20
20
U
25
25
W
30
30
35
35
19934 G31
19934 G28
U
40
40
–100
–110
–120
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
0
0
50MHz 8192 Point FFT, LT1993-4
Driving LTC2249 14-Bit ADC
0
2-Tone WCDMA Waveform
LT1993-4 Driving LTC2255
14-Bit ADC at 92.16Msps
0
8192 POINT FFT
f
FILTERED OUTPUTS
32768 POINT FFT
TONE CENTER FREQUENCIES
AT 67.5MHz, 72.5MHz
IN
= 50MHz, –1dBFS
5
5
10 15 20
10
CC
FREQUENCY (MHz)
FREQUENCY (MHz)
15
20
V
(Normally Tied to Ground). All three pins must be tied to
the same voltage. Split supplies are possible as long as
the voltage between V
not tied to ground, bypass each pin with 1000pF and 0.1µF
capacitors as close to the package as possible.
+OUT, –OUT (Pins 5, 8): Outputs (Unfi ltered). These
pins are high bandwidth, low-impedance outputs. The DC
output voltage at these pins is set to the voltage applied
at V
25
EEA
25
OCM
30
, V
30
35
EEB
.
40
, V
35
19934 G29
19934 G32
EEC
45
40
(Pins 4, 9, 12): Negative Power Supply
–100
–110
–120
–100
–110
–120
–10
–20
–30
–40
–50
–60
–70
–80
–90
–10
–20
–30
–40
–50
–60
–70
–80
–90
CC
0
0
0
0
and V
70MHz 8192 Point FFT, LT1993-4
Driving LTC2249 14-Bit ADC
4-Tone WCDMA Waveform
LT1993-4 Driving LTC2255
14-Bit ADC at 92.16Msps
32768 POINT FFT
TONE CENTER FREQUENCIES
AT 62.5MHz, 67.5MHz, 72.5MHz, 77.5MHz
5
5
EE
10 15 20
10
www.DataSheet4U.com
is 5V. If these pins are
FREQUENCY (MHz)
FREQUENCY (MHz)
15
LT1993-4
20
8192 POINT FFT
f
FILTERED OUTPUTS
25
IN
= 70MHz, –1dBFS
25
30
30
35
40
35
19934 G33
19934 G30
19934fa
9
45
40