MAAM-011194
Differential CATV Variable Gain Amplifier
45 - 1218 MHz
Rev. V1P
Functional Schematic
Features
36 dB Gain
25 dB Attenuation Range
2.5 dB Noise Figure
-62 dBc ACPR @ 67 dBmV Output
-1 channel 256 QAM
3344
4400
3311
3388
1
26
26
-60 dBc ACPR @ 59 dBmV/channel
-4 channel 256 QAM
6 V, 930 mA
Differential Input and Output
Low Harmonics
Single Control Voltage
Lead-Free 5 x 7 mm PQFN-40LD
Halogen-Free “Green” Mold Compound
RoHS* Compliant
6
23
23
8
8
1
5
5
1
18
18
11
11
15
15
Pin Configuration3,4
Description
Pin No.
Pin Name
RFOUT1+
RFIN1+
RFIN1-
Description
The MAAM-011194 is an integrated 3 stage
differential amplifier with embedded voltage variable
attenuator. This part is intended as the output
amplifier in a downstream Edge QAM RF modulator
to support DOCSIS3.1 applications. The module
provides high gain, low noise figure and excellent
linearity and ACPR at output levels 7 dB above
Cable Labs DRFI requirements. The voltage variable
attenuator (VVA) is implemented with PIN diodes to
provide continuous power level control with high
linearity with a single control voltage. The part is
packaged in a 5 x 7 mm PQFN package.
1
Stage 1 Output (+)
Stage 1 Input (+)
Stage 1 Input (-)
Stage 1 Output (-)
3
6
8
RFOUT1-
VREF
9,17,32,40
11
VVA reference voltage
VVA Input (-)
VVAIN-
VCNTL
13,36
15
VVA Control Voltage
VVA Output (-)
VVAOUT
RFIN2-
FB2-
-
18
Stage 2 Input (-)
19
Stage 2 Feedback (-)
Stage 2 Drain Bias (-)
Output of VGA (-)
Stage 2 Current Adjust
Stage 3 Current Adjust
Output of VGA (+)
Stage 2 Drain Bias (+)
Stage 2 Feedback (+)
Stage 2 Input (+)
20
VDD2-
23
RFOUT-
24
IADJ2
IADJ3
25
26
RFOUT
VDD2+
FB2+
+
29
Ordering Information1,2
30
Part Number
Package
31
RFIN2+
34
VVAOUT
VVAIN+
Paddle
+
VVA Output (+)
MAAM-011194-TR1000
1000 piece reel
38
VVA Input (+)
MAAM-011194-001SMB
Sample Test Board
41
RF & DC Ground
3. Do not ground pins 10,12,14,16, 33, 35, 37 and 39 (all are “No
Connection”).
1. Reference Application Note M513 for reel size information.
2. All sample boards include 5 loose parts.
4. Pins 2, 4, 5, 7, 21, 22, 27 and 28 may or may not be
grounded (all are “No Connection”).
* Restrictions on Hazardous Substances, European Union Directive 2011/65/EU.
1
PRELIMINARY: Data Sheets contain information regarding a product MACOM has under development. Performance is based on engineering tests. Specifications are typical. Mechanical
outline has been fixed. Engineering samples and/or test data may be available. Commitment to produce in volume is not guaranteed.
MACOM Technology Solutions Inc. (MACOM ) and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
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DC-xxxxxxx