ADA4430-1YKSZ-R7 Analog Devices Inc, ADA4430-1YKSZ-R7 Datasheet - Page 15

• Manufacturer Part Number: ADA4430-1YKSZ-R7
• Description: IC FILTER VIDEO ULTRA LP SC70-6
• Manufacturer: Analog Devices Inc
• Type: Video Filterr

Specifications of ADA4430-1YKSZ-R7

• Design Resources: Reconstruction Video Filter Using ADA4430-1 Amplifier After ADV7393 Video Encoder (CN0101)
• Applications: DVD, Game Consoles, Media Players
• Mounting Type: Surface Mount
• Package / Case: SC-70-6, SC-88, SOT-363
• Ic Filter Type: Lowpass
• Video Signal Filter: SD
• Frequency: 27MHz
• Bandwidth: 9.5MHz
• Attenuation: 50dB
• Filter Order: 6th
• Variable Gain: X2
• Supply Voltage Range: 2.5V To 6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: ADA4430-1YKSZ-R7TR

RECONSTRUCTION FILTER APPLICATIONS
Figure 33 illustrates how to use the ADA4430-1 as a dc-coupled
reconstruction filter with a pass-band gain of 2 following the
low power
ADV7191 output DAC is shown for illustrative purposes, and
the remaining portions of the ADV7190/ADV7191 are omitted.
The ADV7190/ADV7191 is operated in 4× oversampling mode.
The 2.4 kΩ resistor, R
output current to its minimum full-scale value of 2.16 mA, and
the 600 Ω load resistor produces a full-scale voltage of 1.296 V
at the ADA4430-1 input.
Figure 34 illustrates another reconstruction filter application,
following the
ADV7174
the remaining portions of the ADV7174 are omitted.
output DAC is shown for illustrative purposes, and
ADV7190/ADV7191
ADV7174
SET
, shown in Figure 33 sets the DAC
video encoder. As in Figure 33, one
2.4kΩ
ADV7190/ADV7191
V
V
R
AA
R
AA
17, 25, 29, 38, 43, 54, 63
2, 10, 18, 25, 27
ADV7174 DAC
SET
SET
34, 48
31
1041Ω
(931Ω + 110Ω)
video encoder. One ADV7190/
DAC
DISABLE CONTROL
Figure 33. Using the ADA4430-1 with the ADV7190/ADV7191 Video Encoder
AGND
AGND
DISABLE CONTROL
18, 24, 26, 33,
39, 42, 55, 64
6-9, 11, 12,
17, 19, 26, 40
(191Ω + 71.5Ω)
Figure 34. Using the ADA4430-1 with the ADV7174 Video Encoder
262.5Ω
0.1µF
0.1µF
600Ω
1
2
3
1
2
3
SAG
ADA4430-1
V
GND
SAG
ADA4430-1
V
GND
IN
Rev. C | Page 15 of 20
IN
×1
×1
2.6kΩ
2.6kΩ
2.6kΩ
2.6kΩ
The 1041 Ω resistor, R
output current to its minimum full-scale value of 5 mA, and the
262.5 Ω load resistor produces a full-scale voltage of 1.313 V at
the ADA4430-1 input.
The ADV7174 can produce a maximum full-scale DAC output
current of approximately 35 mA and is therefore capable of
driving the video cable directly; however, as shown in Figure 34,
the ADA4430-1 offers a lower power cable-driving option.
Figure 34 reveals the details of how the ADA4430-1 saves
power when driving video cables with terminations at both
ends. A full-scale level at the DAC output produces 2.626 V at
the ADA4430-1 output, which in turn delivers 17.5 mA into
the cable. In the case shown in Figure 27, the output voltage is
1.313 V, but the current driven into the cable is 35 mA—twice
that required when the ADA4430-1 is used. Therefore, the
ADA4430-1 allows the video encoder to be operated at its
minimum full-scale output current, and it efficiently handles
the cable-driving burden.
1.3kΩ
1.3kΩ
DIS
DIS
5 6
5
3V
2.6kΩ
3V
2.6kΩ
V
V
6
V
V
OUT
S
S
OUT
0.1µF
0.1µF
4
4
75Ω
75Ω
75Ω CABLE
75Ω CABLE
SET
, shown in Figure 34, sets the DAC
75Ω
75Ω
ADA4430-1