MMT20303HT1
1
RF Device Data
Freescale Semiconductor, Inc.
3--Bit Digital Step Attenuator
The MMT20303H is an integrated 3--bit digital step attenuator witha1dB
step size. It is controlled via a 3--bit parallel interface and operates from a 3 to 5 V
supply. The MMT20303H is suitable for 3G/4G small cell transmitter and mobile
radio applications using frequencies from 50 to 4000 MHz.
Features
Frequency: 50–4000 MHz
Maximum RF Input Power: 30 dBm (CW)
Typical IIP3 > 50 dBm
Programmable Attenuator with 7 dB Maximum Range, 1 dB Step Size
Low Insertion Loss
0.1 dB Typical Bit Error
Excellent Consistency over Temperature and Supply Voltage
Single 3 to 5 V Supply
50 Ohm Operation
P1dB Independent of Control Voltage
3--bit Digital Control
TTL/CMOS Interface Compatible
Cost--effective 16--pin, 3 mm QFN Surface Mount Plastic Package
Table 1. Typical Performance
(1)
Characteristic Symbol
250
MHz
900
MHz
4000
MHz
Unit
Insertion Loss IL –0.6 –0.7 –1.3 dB
Attenuation Accuracy (Worst Case State) +0.1, –0.1 +0.1, 0 +0.1, –0.1 dB
Third Order Intercept Input Point
(2)
IIP3 47 54 52 dBm
Power Input @ 1 dB Compression P1dB 30 35
(3)
35
(3)
dBm
1. V
DD
=5Vdc,T
A
=25C, 50 ohm system, application circuit tuned for specific frequency.
2. Two--tone input power = +13 dBm each tone.
3. Operate within specified maximum rating.
Figure 1. Functional Block Diagram
RF
in
RF
out
b
2
1dB
2dB
4dB
b
1
b
0
V
DD
Document Number: MMT20303H
Rev. 0, 12/2015
Freescale Semiconductor
Technical Data
MMT20303HT1
50–4000 MHz, 3 Bit
1dBLSB
QFN 3 3
PLASTIC
Freescale Semiconductor, Inc., 2015.
A
ll rights reserved.
2
RF Device Data
Freescale Semiconductor, Inc.
MMT20303HT1
Table 2. Maximum Ratings
Rating Symbol Value Unit
Supply Voltage V
DD
6 V
RF Input Power P
in
30 dBm
Storage Temperature Range T
stg
–65 to +150 C
Case Operating Temperature Range T
C
–40 to +85 C
Junction Temperature T
J
175 C
Table 3. Electrical Characteristics (V
DD
= 5 Vdc, 900 MHz, T
A
=25C, 50 ohm system, in Freescale Application Circuit)
Characteristic
Symbol Min Typ Max Unit
Insertion Loss 1 (50–900 MHz) IL
1
0.6 1.0 dB
Insertion Loss 2 (1000–2500 MHz) IL
2
0.8 dB
Insertion Loss 3 (2500–4000 MHz) IL
3
1.2 dB
Input Return Loss (S11) IRL 20 dB
Output Return Loss (S22) ORL 20 dB
Attenuation Control Maximum Range R 7 dB
Attenuation Step
R
1 dB
Attenuation Accuracy 0.1 0.25 dB
Turn--on Time t
on
60 ns
Turn--off Time t
off
100 ns
Power Output @ 1dB Compression P1dB 35 dBm
Third Order Input Intercept Point @ 5 V IIP3
5
50 dBm
Third Order Input Intercept Point @ 3 V IIP3
3
50 dBm
Max Input Voltage Logic Low @ 100 A, 3 V V
IL
0.8 V
Min Input Voltage Logic High @ 100 A, 3 V V
IH
2.3 V
Supply Current @ 5 V I
DD
2 3 mA
Table 4. ESD Protection C haracteristics
Test Methodology Class
Human Body Model (per JESD22--A114) 1A
Machine Model (per EIA/JESD22--A115) A
Charge Device Model (per JESD22--C101) III
Table 5. Moisture Sensitivity Level
Test Methodology Rating Package Peak Temperature Unit
Per JESD22--A113, IPC/JEDEC J--STD--020 1 260 C
Table 6. Ordering Information
Device Tape and Reel Information Package
MMT20303HT1 T1 Suffix = 1,000 Units, 12 mm Tape Width, 7--inch Reel QFN 3 3
MMT20303HT1
3
RF Device Data
Freescale Semiconductor, Inc.
Table 7. Functional Pin Description
Pin Number Pin Function Pin Description
1, 3, 4, 5, 8,
9, 10, 12
N.C. No Connection
2 RF
in
RF Input
6, 7 ACG
(1)
AC Ground
11 RF
out
RF Output
13 b
0
Attenuator Bit 0 (active low)
14 b
1
Attenuator Bit 1 (active low)
15 b
2
Attenuator Bit 2 (active low)
16 V
DD
Supply Voltage
1. AC ground connection for operation below 700 MHz.
Table 8. Logic Truth Table
b
2
b
1
b
0
State
Attenuation
(dB)
H H H 111 0
L H H 011 1
H L H 101 2
L L H 001 3
H H L 110 4
L H L 010 5
H L L 100 6
L L L 000 7
(Top View)
1
2
3
16
4
RF
in
N.C.
15
b
0
14 13
567
8
12
11
10
9
N.C.
N.C.
N.C.
N.C.
RF
out
N.C.
Figure 2. Pin Connections
N.C.
V
DD
Note: Exposed backside of the package is DC and
RF ground. N.C. can be connected to GND.
b
1
b
2
N.C. ACG1 ACG2

MMT20303HT1

Mfr. #:
Manufacturer:
NXP / Freescale
Description:
Attenuators MMT20303H/HVQFN16///REEL 7 Q2 NDP
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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