MA-COM AM55

Hi Dyn Range 2 Channel IF Amp with
Power Control, 100 - 400 MHz
AM55-0024
V 2.00
Features
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Functional Block Diagram
Attenuation: 0.5 dB steps to 31.5 dB
6 Bit Digital Gain Control
CMOS Logic
Serial Logic Interface
Single Positive Voltage Supply
8 mm PBGA Package
JEDEC MO-151 Footprint
Single Package Solution for GSM,CDMA,PCS
IF in A
IF out A
Logic
Interface
IF in B
IF out B
Description
The M/A-COM AM55-0024 is a dual channel IF amplifier
and digital attenuator packaged in a multi-layer multi-chip
module (MCM). Gain control is via two separate serial
logic interfaces. The part utilizes Plastic Ball Grid Array
(PBGA) interconnect technology to achieve high circuit
density and superior performance. This device is ideal for
GSM/DCS/PCS digital base station applications where high
dynamic range gain control functionality is required.
Absolute Maximum Ratings 1
Parameter
Absolute Maximum
Input Power2
+20 dBm
2
Operating Voltage
VDD = +6 V
Operating Temperature
-40°C to +85°C
Storage Temperature
-65°C to +150°C
1. Exceeding any one or combination of these limits may
cause permanent damage.
2. Ambient Temperature (T A) = +25°C.
Electrical Specifications: TA = 25°C, Z0 = 50Ω
Parameter
Test Conditions
1
Units
Min.
Typ.
Max.
19.5
21
22.5
Gain
100 - 400 MHz
dB
Gain Control Range
100 - 400 MHz
dB
31.5
Minimum Gain Control Step Size
100 - 400 MHz
dB
0.5
Return Loss
100 - 400 MHz
dB
Output IP3
100 - 400 MHz @ 5V
10
12
dBm
30
V
3/5
mA
300/400
Switching Speed (50% TTL to 90% RF)
nS
50
Isolation
dBc
50
60
P1 dB
dBm
15
17.5
Supply Voltage
Supply Current
Noise Figure
1. All measurements in a 50 Ohm system.
@ 3V / @ 5V
100 - 400 MHz
dB
4
Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz
AM55-0024
V 2.00
Clock Diagram 1, 2, 3, 4, 5
External Components 1, 2, 3
3V
A1
3V
A2
3V
B1
3V
B2
Data
Clock
3V A3
IF Out A
IF In A
AM55-0024
Latch
IF In B
IF Out B
3V B3
Latch B
Data B
Clk B
Digital VDD
Clk A
Latch A
Data A
1.
2.
3.
4.
5.
1. All inductors are 470 nH
2. All Capacitors are 10000 pF
3. IF outputs must be supplied +3 Volts.
Max Clock Speed = 40 MHz
Ton = Toff
Tsu = >3ns
Thold = >7ns
Data clocked in on rising clock edge
Serial Interface
Component
L
Value
470 nH
C
10000 pF
Each channel in the AM55-0024 is independently
controllable with a 3 wire serial interface: Clock, Data,
and Latch Enable. These lines can be shared based on
application requirements. The attenuator within the
device is controlled with a 6 bit word, enabling the
selection of 64 possible states. The highest gain state is
'000000', and the lowest is '111111'. The sequence for
shifting the data is as follows: Present data (MSB first),
strobe clock, repeat until 6 bits have been presented and
clocked, then strobe the latch enable line, which
implements the state change.
Typical Performance Curves
Output VSWR
3.5
3.5
3.0
3.0
VSWR (dB)
VSWR (dB)
Input VSWR
2.5
2.0
1.5
2.0
1.5
1.0
0.045
2.5
0.105
0.165
0.225
0.285
0.345
0.405
Frequency (GHz)
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
1.0
0.045
0.105
0.165
0.225
0.285
0.345
0.405
Frequency (GHz)
2
Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz
AM55-0024
V 2.00
Typical Performance Curves (Cont’d)
Attenuation (6 individual bits)
Gain
23
20
22
Gain (dB)
Attenuation (dB)
+85°C
25
15
10
+25°C
-40°C
21
20
19
5
18
0
0.05
0.11
0.17
0.23
0.29
0.35
0.41
0.045
0.105
0.165
0.225
0.285
0.345
0.405
Frequency (GHz)
Frequency (GHz)
Noise Figure
18
Noise Figure (dB)
16
14
12
10
8
6
4
2
0
0.05
0.1175
0.185
0.2525
0.32
0.3875
0.455
Frequency (GHz)
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
3
Hi Dyn Range 2 Channel IF Amp w/Pwr Cntrl, 100 - 400 MHz
AM55-0024
V 2.00
8 mm PBGA
Pin Out
8
7
6
5
+5V_A1
DAT_A
CLK_A
+5V_A2
4
3
2
1
RF_OUT_A
A
B
RF_IN_A
C
LE_A
D
RF_IN_B
E
LE_B
F
CLK_B
G
DAT_B
+5V_B1
+5V_B2
RF_OUT_B
H
Ordering Information
Part Number
Package
AM55-0024
8-mm PBGA Package
AM55-0024TR
Forward Tape and Reel1
AM55-0024RTR
Reverse Tape and Reel
1. If specific reel size is required, consult factory for part
number assignment.
Specifications subject to change without notice.
n North America: Tel. (800) 366-2266
n Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
n Europe: Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
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