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PDF ACA2604 Data sheet ( Hoja de datos )
| Número de pieza | ACA2604 | |
| Descripción | Fiber-to-the-Home RF Amplifier | |
| Fabricantes | ANADIGICS | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de ACA2604 (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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FEATURES
• 50 - 870 MHz Operating Frequency
• High Linearity: 65 dBc CTB/CSO (79 Chan.)
• Low Equivalent Input Noise: 4.5 pA/rtHz
• 22 dB Gain Adjust
• 400 Differential Input Impedance: No
Transformer Required for Interface to Photodiode
• Single +5 V Supply
• 5 mm x 5 mm x 1 mm Surface Mount Package
• RoHS Compliant Package
• Pin Compatible with the ACA2601
APPLICATIONS
• FTTH RF Amplifier Used in Conjunction With
Triplexer in Fiber-Coax Line Terminals
ACA2604
Fiber-to-the-Home RF Amplifier
Data Sheet - Rev 2.1
ACA2604
S29 Package
28 Pin QFN
5 mm x 5 mm x 1 mm
PRODUCT DESCRIPTION
The ANADIGICS ACA2604 amplifier for Fiber-to-the-
Home (FTTH) applications is intended to be used
in conjunction with the triplexer in fiber-coax line
terminals. The device is driven by, and amplifies the
output of, the video downstream path photodiode.
wwTwh.eDhaitgaSh-hiemept4eUd.acnomce input of the ACA2604 eliminates
the need for a costly transformer usually needed to
interface to the photodiode, and a low equivalent input
noise level offers excellent sensitivity. The device
provides sufficient linearity to maintain low CTB and
CSO levels in full-bandwidth (132 channel) systems,
even across a wide gain adjustment range.
The ACA2604 is manufactured using ANADIGICS’s
proven MESFET technology that offers state-of-the-
art reliability, temperature stability and ruggedness.
The device operates from a single +5 V supply and
is offered in a 5 mm x 5 mm x 1 mm surface mount
package.
Supply
Attenuator
Control
Matching
Circuit
LNA
Voltage
Controlled
Attenuator
Output
Amplifier
ACA2604
Figure 1: Application Block Diagram
11/2008
RF Output
1:1
Transmission
Line Balun
1 page  
ACA2604
www.DataSheet4U.com
Figure 3: Test Circuit
Data Sheet - Rev 2.1
11/2008
5
5 Page 
ACA2604
Performance data on this page measured using application circuit with input photodiode, as shown in Figure 15.
Figure 10: Gain Flatness to Best Fit Line vs. Frequency Over Temperature
(VCC = + 5 V, VAGC = 0 V)
2
1.5
1
0.5
0
0
-0.5
+85C
` +25C
100
200
300
400
500
600
700
800
900
1000
-40C
-1
-1.5
-2
Frequency (MHz)
Table 7: Gain Flatness to Best Fit Line
(VAGC = 0 V)
Temp (oC)
Tilt (dB)
Flatness (dB)
www.DataS8h5eet4U.com
25
5.2
5.8
1.2
1.0
-40 6.3 0.8
The best fit line is calculated
using the least mean squares
method:
y = m⋅x+b
m
=
∑(x ⋅ y)−
∑x2 −
∑x⋅∑
n
(∑ x)2
n
y
b= ∑y −m⋅∑x
nn
Data Sheet - Rev 2.1
11/2008
11
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet ACA2604.PDF ] | |
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