per channel. Gain in the minimum attenuation state
is typically 40 dB. The internal DSA offers 15.5 dB
attenuation range with 0.5 dB steps. The device is
optimized for high output power with 8 V bias and
can also operate from 5 V bias if lower DC power
consumption and output level is desired. The
module also provides a power down function for
each of the amplifier stages.
This amplifier is ideally suited for use in CATV
reverse path applications.
Pin
No.
1
6
7
8
9
13
14
15
16
17
18
20
21
25
Package
1000 piece reel
3000 piece reel
Sample Test Board
26
27
29
Pin Configuration
3
Description
Latch Enable
Stage1 Feedback (+)
Stage 1 input (+)
Stage 1 input (-)
Stage 1 Feedback(-)
Stage 1 Output (+)
Stage 1 Output (-)
Enable Stage 1
Stage 1 Bias Voltage
Attenuator Input (-)
Attenuator Input (+)
Stage 2 Bias Voltage
Enable Stage 2
Attenuator Output (-)
Stage 2 Input (-)
Stage 2 Feedback(-)
Stage 2 Output (-)
Pin
No.
30
32
33
34
36
37
38
39
40
41
42
43
44
46
47
48
49
Description
Stage 2 Output (+)
Stage 2 Feedback(+)
Stage 2 Input (+)
Attenuator Output (+)
DSA Serial Output
Power Up Select 2
Power Up Select 1
V
DD
CMOS Controller
Unused Control (B5)
5
Attenuator Bit 4 (8 dB)
Attenuator Bit 3 (4 dB)
Attenuator Bit 2 (2 dB)
Attenuator Bit 1 (1 dB)
Parallel/Serial Select
Clock
Serial Input
RF and DC Ground
4
Ordering Information
1,2
Part Number
MAAM-011168-TR1000
MAAM-011168-TR3000
MAAM-011168-001SMB
45 Attenuator Bit 0 (0.5 dB)
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
* Restrictions on Hazardous Substances, European Union
Directive 2011/65/EU.
1
3. All pins not listed in the table are “No Connection” and should
be left unconnected.
4. The exposed pad centered on the package bottom must be
connected to RF and DC ground.
5. MACOM recommends grounding pin 40. It is connected to the
CMOS controller but does not affect attenuator setting.
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-011168
Differential CATV Variable Gain Amplifier
5 - 300 MHz
Rev. V2
Electrical Specifications: T
A
= +25°C, V
CC
= 8 V, minimum attenuation state, Z
0
= 75
Ω
Parameter
Gain
Gain Slope
Noise Figure
6
Input Return Loss
Output Return Loss
Reverse Isolation
Attenuation Range
64 QAM
Modulated Error Ratio
7
P1dB
OIP2
OIP3
T
ON,
T
OFF
I
CC
I
CC_OFF
I
EN1,
I
EN2
Test Conditions
Max. Gain State @ 100 MHz, -29 dBm P
IN
Positive tilt from 5 - 200 MHz
—
—
—
—
100 MHz, Relative to maximum gain, -29 dBm P
IN
39 Channels (5 - 250 MHz), 51 dBmV/Ch.
Single Channel (8 - 200 MHz), 71 dBmV/Ch.
Single Channel (250 MHz), 70 dBmV/Ch.
16 Channels (5 - 250 MHz), 56 dBmV/Ch.
—
2-tone,+9 dBm/tone, 1 MHz tone spacing, 200 MHz
2-tone,+9 dBm/tone, 1 MHz tone spacing, 200 MHz
50% Control to 90 / 10 % RF
EN1 = EN2 = 5 V
EN1 = EN2 = 0 V
EN1 = EN2 = 5 V
Units
dB
dB
dB
dB
dB
dB
dB
Min.
38
—
—
—
—
—
14.6
—
—
—
30
—
—
—
—
—
—
—
Typ.
40
1.0
2.6
22
22
50
15.5
36
35
35
34
27
74
44
400
290
3
0.7
Max.
42
—
—
—
—
—
16.4
dB
—
dBm
dBm
dBm
ns
mA
mA
mA
—
—
—
—
315
10
—
6. Includes Balun loss
7. Modulation error ratio each channel 64 QAM 5.12 MS/s
2
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-011168
Differential CATV Variable Gain Amplifier
5 - 300 MHz
Rev. V2
Absolute Maximum Ratings
8,9,10
Parameter
RF Input Power
Bias Voltage (V
CC
)
Control Voltage
Operating Temperature
Junction Temperature
11
Storage Temperature
Absolute Maximum
-8 dBm
10 V
-0.5 V to 5.5 V
-40°C to +100°C
+150°C
-65°C to +150°C
Truth Table
12
B5
X
X
X
X
X
X
X
B4
1
1
1
1
1
0
0
B3
1
1
1
1
0
1
0
B2
1
1
1
0
1
1
0
B1
1
1
0
1
1
1
0
B0
1
0
1
1
1
1
0
Attenuation (dB)
Minimum
0.5
1
2
4
8
15.5
8. Exceeding any one or combination of these limits may cause
permanent damage to this device.
9. MACOM does not recommend sustained operation near
these survivability limits.
10. Operating at nominal conditions with T
J
≤ 150°C will ensure
MTTF > 1 x 10
6
hours.
11. Junction Temperature (T
J
) = T
C
+
Өjc
* (V * I)
Typical thermal resistance (Өjc) = 8.85° CW.
a) For T
C
= +25°C,
T
J
= 47°C @ 8 V, 315 mA
b) For T
C
= +100°C,
T
J
= 122°C @ 8 V, 315 mA
12. Logic “0” = 0 V to 0.8 V ± 0.2 V,
Logic “1” = 2 V to 5 V ± 0.2 V.
3
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-011168
Differential CATV Variable Gain Amplifier
5 - 300 MHz
PCB Layout
Rev. V2
Application Schematic
B5
5
1
4
3
2
2
3
4
1
5
4
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
For further information and support please visit:
https://www.macom.com/support
MAAM-011168
Differential CATV Variable Gain Amplifier
5 - 300 MHz
Parts List : 8 V Application circuit
Part
C1, C9, C20, C21, C22, C23, C24, C29
C2, C4, C5, C7, C8, C11, C12, C13, C14
C15, C17, C18, C27, C28
C3, C19
C25
C26
L1, L12
L2, L11
L3, L10
L4, L9
L5, L8
L6, L7
R1
R18
R2
R4
R7, R14
R16, R17
R8
R10, R11, R21, R22
R5, R6, R19, R20
T1, T2
Value
0.1 µF
0.1 µF
150 pF
1 µF
1 pF
47 µH
250 nH
22 nH
22 nH
27 nH
33 nH
0
Ω
30
Ω
3 kΩ
5 kΩ
249
Ω
22
Ω
10 kΩ
50
Ω
150
Ω
1:2
Case Style
0402
0402
0402
0805
0402
0806
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402
0402 or
0603
Function/Notes
RF Bypass
DC Block
Gain Tilt (with R16 and R17)
Low Frequency Bypass
Output Match
V
C
C1 Choke. Murata LQH2MCN470K02L
Gain Tilt (with R7 & R14). Coilcraft 0402AF-251XJLU
Input Match Stage2 Amp
Output Match Stage1 Amp
Input Match Stage1 Amp
Output Match Stage2 Amp
Input Match
Increase value can reduce stage 2 current
Voltage divider to set V
DD
_CMOS
13
Voltage divider to set V
DD
_CMOS
13
Gain Tilt (with L2, L11)
Gain Tilt (with C3, C19)
Increase value can reduce stage 1 current.
Drop V
CC
1 to 5 V. Pdiss 1/20 W. 0
Ω
for 5 V V
CC
Additional feedback resistors for Stage1 & Stage2.
May be used to adjust gain or implement temperature
compensation if replaced with thermistors.
MABA-011050
Rev. V2
13. These components may be omitted if 5 V supply is available for V
DD
_CMOS.
5
M/A-COM Technology Solutions Inc. (MACOM) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit
www.macom.com
for additional data sheets and product information.
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