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Электронный компонент: ACD2202

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12/2003
ACD2202
CATV/TV/Video Downconverter
with Dual Synthesizer
Data Sheet - Rev 2.1
Figure 1: Downconverter Block Diagram
FEATURES
Integrated Downconverter
Integrated Dual Synthesizer
256 QAM Compatibility
Single +5 V Power Supply Operation
Low Power Consumption: <0.6 W
Low Noise Figure: 8 dB
High Conversion Gain: 10 dB
Low Distortion: -53 dBc
Three-Wire Interface
Small Size
-40 C to +85 C
APPLICATIONS
Set Top Boxes
CATV Video Tuners
Digital TV Tuners
CATV Data Tuners
Cable Modems
S8 Package
28 Pin SSOP
PRODUCT DESCRIPTION
The ACD2202 uses both GaAs and Si technology
to provide the downconverter and dual synthesizer
functions in a double conversion tuner gain block,
local oscillator, balanced mixer and dual synthesizer.
The specifications meet the requirements of
CATV/TV/Video and Cable Modem Data applications.
The ACD2202 is supplied in a 28 lead SSOP
package and requires a single +5 V supply voltage.
The IC is well suited for applications where small
size, low cost, low auxiliary parts count and a no-
compromise performance is important. It provides
for cost reduction by lowering the component and
packaged IC count and decreasing the amount of
labor-intensive production alignment steps, while
significantly improving performance and reliability.
Figure 2: Dual Synthesizer Block Diagram
RF2: 64/65
Prescaler
18 Bit RF2
N Counter
RF2
Phase
Detector
RF2
Charge
Pump
RF1
Phase
Detector
RF1
Charge
Pump
15 Bit RF2
R Counter
15 Bit RF1
R Counter
18 Bit RF1
N Counter
RF1: 64/65
Prescaler
Oscillator
22 Bit
Data Registar
CP
U
CP
D
RF
D
REF
IN
REF
OUT
RF
U
Clock
Data
Enable
V
IF
+
IF
OUT+
OSC
OUT
T
CKT
RF
IN
+
Phase Splitter
Low Noise
VGA
Mixer
RF
IN
-
V
IF
+
IF
OUT-
2
Data Sheet - Rev 2.1
12/2003
ACD2202
Figure 3: Pinout
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
RF
IN+
V
IF
+ IF
OUT+
V
SS
OSC
GND
EN
DATA
T
CKT
I
SET
CLK
GND
REF
IN
REF
OUT
V
SS
V
SS
GND
V
SS
GND
RF
D
OSC
OUT
CP
D
V
SUP
CP
U
GND
RF
U
V
SYN
RF
IN-
OSC
GND
V
IF
+ IF
OUT-
Data Sheet - Rev 2.1
12/2003
3
ACD2202
Table 1: Pin Description
N
I
P
E
M
A
N
N
O
I
T
P
I
R
C
S
E
D
N
I
P
E
M
A
N
N
O
I
T
P
I
R
C
S
E
D
1
F
R
+
N
I
r
e
t
r
e
v
n
o
c
n
w
o
D
t
u
p
n
I
F
R
l
a
it
n
e
r
e
ff
i
D
8
2
V
F
I
F
I
+
+
T
U
O
r
e
t
r
e
v
n
o
c
n
w
o
D
t
u
p
t
u
O
F
I
l
a
it
n
e
r
e
ff
i
D
o
t
d
e
l
p
u
o
c
y
l
e
v
it
c
u
d
n
I
V
+
D
D
2
F
R
-
N
I
r
e
t
r
e
v
n
o
c
n
w
o
D
t
u
p
n
I
F
R
l
a
it
n
e
r
e
ff
i
D
7
2
V
F
I
F
I
+
T
U
O
-
r
e
t
r
e
v
n
o
c
n
w
o
D
t
u
p
t
u
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F
I
l
a
it
n
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ff
i
D
o
t
d
e
l
p
u
o
c
y
l
e
v
it
c
u
d
n
I
V
+
D
D
3
D
N
G
d
n
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o
r
G
r
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v
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n
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D
)
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t
c
e
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c
e
b
t
s
u
M
(
6
2
D
N
G
d
n
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r
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r
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t
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)
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(
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(
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a
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k
n
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T
(
4
2
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S
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ll
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(
)
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n
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6
C
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ti
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n
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T
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n
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3
2
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7
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6
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2
2
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D
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l
b
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-
3
9
1
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1
1
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T
A
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t
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e
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-
3
8
1
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2
1
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L
C
k
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e
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-
3
7
1
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C
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p
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m
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3
1
F
E
R
N
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t
u
p
n
I
e
c
n
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r
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f
e
R
l
a
t
s
y
r
C
6
1
F
R
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r
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t
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v
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c
p
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R
4
1
F
E
R
T
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O
t
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p
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c
n
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e
f
e
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l
a
t
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r
C
5
1
V
N
Y
S
y
l
p
p
u
S
r
e
z
i
s
e
h
t
n
y
S
V
+
(
D
D
)
4
Data Sheet - Rev 2.1
12/2003
ACD2202
ELECTRICAL CHARACTERISTICS
Table 2: Absolute Minimum and Maximum Ratings
Stresses in excess of the absolute ratings may cause permanent damage.
Functional operation is not implied under these conditions. Exposure to absolute
ratings for extended periods of time may adversely affect reliability.
The device may be operated safely over these conditions; however, parametric
performance is guaranteed only over the conditions defined in the electrical
specifications.
Table 3: Operating Ranges
Notes:
(1) Mixer operation is possible beyond these frequencies with slightly reduced
performance.
(2) Case Temperature is 15 C higher than Ambient Temperature, when Ambient
Temperature is +25 C, using the PC Board Layout shown in Figures 23-25.
R
E
T
E
M
A
R
A
P
N
I
M
X
A
M
T
I
N
U
)
8
2
&
7
2
,
5
2
s
n
i
p
(
e
g
a
tl
o
V
y
l
p
p
u
S
)
5
1
n
i
p
(
-
-
9
+
5
.
6
+
C
D
V
6
1
,
4
1
h
g
u
o
r
h
t
0
1
s
n
i
p
n
o
e
g
a
tl
o
V
V
h
ti
w
9
1
h
g
u
o
r
h
t
S
S
V
0
=
3
.
0
-
V
N
Y
S
3
.
0
+
C
D
V
)
5
&
2
,
1
s
n
i
p
(
s
e
g
a
tl
o
V
t
u
p
n
I
-
0
C
D
V
)
2
&
1
s
n
i
p
(
r
e
w
o
P
t
u
p
n
I
)
5
n
i
p
(
)
9
1
&
6
1
,
3
1
s
n
i
p
(
-
-
-
0
1
+
7
1
+
0
2
+
m
B
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u
t
a
r
e
p
m
e
T
e
g
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S
5
5
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5
1
+
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t
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r
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m
e
T
g
n
ir
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d
l
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-
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6
2
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e
m
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ir
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-
4
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-
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W
/
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)
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(
)
F
R
(
t
u
p
n
I
F
R
)
F
I
(
t
u
p
t
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O
F
I
)
O
L
(
r
o
t
a
ll
i
c
s
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l
a
c
o
L
0
0
9
5
3
5
6
8
-
-
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0
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2
1
0
5
1
0
5
3
1
z
H
M
s
e
i
c
n
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q
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r
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r
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n
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R
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e
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s
e
h
t
n
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S
r
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t
r
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v
n
o
c
p
U
U
)
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R
(
r
e
z
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s
e
h
t
n
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r
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D
D
)
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E
R
(
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o
t
a
ll
i
c
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N
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o
t
c
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t
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a
h
P
0
0
4
0
0
4
2
-
-
-
4
-
0
0
1
2
0
0
4
1
0
2
0
1
z
H
M
V
:
e
g
a
tl
o
V
y
l
p
p
u
S
DD
)
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2
,
7
2
,
5
2
,
5
1
s
n
i
p
(
0
7
.
4
+
5
+
5
2
.
5
+
C
D
V
T
:
e
r
u
t
a
r
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p
m
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g
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it
a
r
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t
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b
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A
A
)
2
(
0
4
-
-
5
8
+
C
Data Sheet - Rev 2.1
12/2003
5
ACD2202
Table 4: Electrical Specifications - Downconverter Section
(T
A
= 25
C
(7)
, V
DD
= +5 VDC, RF
IN
= 1087 MHz, IF
OUT
= 45 MHz)
Notes:
(1) As measured in ANADIGICS test fixture with single-ended RF input.
(2) As measured in ANADIGICS test fixture with differential RF inputs.
(3) SSB noise figure will be approximately 3 dB higher with single-ended RF input.
(4) Two tones: 1085 and 1091 MHz, -20 dBm each, 1091 MHz tone AM-modulated
99% at 15 kHz.
(5) Two tones: 1085 and 1091 MHz, -15 dBm each.
(6) R1 = 10 Ohms.
(7) Case Temperature is 15 C higher than Ambient Temperature, when Ambient
Temperature is +25 C, using the PC Board Layout shown in Figures 23-25.
R
E
T
E
M
A
R
A
P
N
I
M
P
Y
T
X
A
M
T
I
N
U
n
i
a
G
n
o
i
s
r
e
v
n
o
C
)
1
(
n
i
a
G
n
o
i
s
r
e
v
n
o
C
)
2
(
8
1
1
0
1
3
1
4
1
7
1
B
d
e
r
u
g
i
F
e
s
i
o
N
B
S
S
)
3
(
,
)
2
(
-
4
7
B
d
n
o
it
a
l
u
d
o
M
s
s
o
r
C
)
6
(
,
)
4
(
,
)
2
(
-
6
5
-
3
5
-
c
B
d
3
d
r
n
o
it
r
o
t
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D
n
o
it
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m
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n
I
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d
r
O
)
3
D
M
I
(
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6
(
,
)
5
(
,
)
2
(
-
-
3
5
-
c
B
d
3
e
n
o
T
-
2
d
r
t
n
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o
P
t
p
e
c
r
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t
n
I
t
u
p
n
I
r
e
d
r
O
)
3
P
II
(
)
6
(
,
)
5
(
,
)
2
(
2
1
+
-
-
m
B
d
)
t
e
s
ff
O
z
H
K
0
1
@
(
e
s
i
o
N
e
s
a
h
P
O
L
)
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(
,
)
1
(
-
0
9
-
5
.
5
8
-
z
H
/
c
B
d
)
4
2
n
i
p
(
r
e
w
o
P
t
u
p
t
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L
)
2
(
,
)
1
(
0
1
-
5
-
-
m
B
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p
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t
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z
H
M
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t
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4
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5
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1
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m
B
d
c
B
d
m
B
d
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)
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2
&
7
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p
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C
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