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Linear Integrated Transceiver
2.4 - 2.5 GHz
Features
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MD58-0002
V 2.00
+.0037
.3900 -.0041
9,91 +0,09
-0,1
SSOP-28
+.0025
.0275 -.0025
0,7
+0,06
-0,06
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Fully Integrated Transmit and Receive Functions
High Linear Transmit Power: Output P1dB = 9 dBm
High Up/Down Conversion Gains (26 dB/16 dB)
Generic Architecture with Single-Ended
Input/Output Ports
4 dB, 8 dB and 12 dB Transmit Power Control
Low Cost SSOP 28-Lead Plastic Package
Integrated Image Reject Filter with 10 dB Rejection
@ 200 MHz IF
Offers Lower-Side-Band Suppression in Transmit Mode
PIN 1
+.0034
.1540 -.0043 .236 ±.008
+0,09 5,99 ± 0,2
3,91 -0,11
.057 ±.003
1,45 ±0,08
.015 (0,38) X 45°
+.0018
.0080 -.0005
0,2 +0,05
-0,01
0-8°
+.022
.028 -.013
+0,56
0,71 -0,33
Description
M/A-COM's MD58-0002 is a highly integrated RF front end
transceiver with high linear transmit power. The transceiv-
er is ideally suited for linear phase modulation systems in
the 2.4 - 2.5 GHz ISM band. The receiver features an LNA,
image reject filter, double balanced mixer and IF amplifier.
The transmit chain includes IF amplifier, double balanced
mixer, digital attenuator and two RF amplifiers. Applications
include WLAN, portable data terminals and wireless PBX.
The MMIC is fabricated using an industry standard 1.0-µm
MESFET process.
.007 ±.003
0,18 ±0,08
.025
0,64
+.004
.010 -.001
0,25 +0,1
-0,03
.004 (0,10)
Dimensions are inches over millimeters
Ordering Information
Part Number
MD58-0002
MD58-0002TR
MD58-0002RTR
MD58-0002SMB
Description
SSOP 28-Lead Plastic Package
Forward Tape & Reel
*
Reverse Tape & Reel
*
Designer’s Kit
Typical Electrical Specifications
*
If specific reel size is required, consult factory for part number assign-
Test Conditions: RF = 2484 MHz (-30 dBm), IF = 200 MHz (-30 dBm), LO = 2284 MHz (0 dBm), VDD = +5 V ±5%,
VGG = -5 V ±10%, T
A
= +25°C
Parameter
Receive Mode
RF Frequency Range
IF Frequency Range
Conversion Gain
SSB Noise Figure
Input P1dB
VDD (+5V) Current
VGG (-5V) Current
Transmit Mode
RF Frequency Range
IF Frequency Range
Conversion Gain
Output P1dB
LO Leakage
Power Control Accuracy
For 4 dB, 8 dB and 12 dB states
VDD (+5 V) Current
VGG (-5 V) Current
Test Conditions
IF port is matched to 50
Ω
by LC network (see External
Components section)
Units
GHz
MHz
dB
dB
dBm
mA
IF port is matched to 50
Ω
by LC network (see External
Components section)
GHz
MHz
dB
dBm
dBm
dB
mA
mA
2.4
200
20
5
Min.
2.4
200
11
Typ.
Max.
2.5
400
16
5.2
-15.5
2.6
6.0
50
5.0
2.5
400
26
9
-2
±1.5
95
150
3.6
75
mA
5.0
Linear Integrated Transceiver
Absolute Maximum Ratings
Parameter
Max. Input Power
2
Operating Voltages
2
Operating Temperature
Storage Temperature
1
MD58-0002
V 2.00
Transceiver Truth Table
Pins
LOSEL
R1VDD, RxV DD
TxVDD, T2VDD, T3VDD
Receive
1
5V
0V
Transmit
0
0V
5V
Absolute Maximum
+23 dBm
VDD = 7 V
VGG = -7 V
-40°C to +85°C
-65°C to +150°C
1.Exceeding these limits may cause permanent damage.
2.Ambient temperature (TA) = +25°C
Digital Attenuator Truth Table
Attenuation
A1
1
1
0
0
A0
1
0
1
0
0 dB
4 dB
8 dB
12 dB
Pin Description
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Pin Name
GND
VGG
GND
RF IN
VDD
GND
GND
T2VDD
TxVDD
GND
IF IN
GND
LOV DD
A0
A1
GND
GND
LO IN
LOSEL
IF OUT
Description
DC and RF Ground
Negative supply voltage (-5 V) for
receive and transmit
DC and RF Ground
Receive input to LNA.Signal is
internally AC coupled. Zin = 50
Ω
Positive supply voltage (+5 V) for
receive and transmit
DC and RF Ground
DC and RF Ground
Positive supply voltage (+5 V) for
transmit
Positive supply voltage (+5 V) for
transmit
DC and RF Ground
Transmit input to IF amplifier. Signal is
internally AC coupled.Zin = 140
Ω
+ 12 pF
DC and RF Ground
Positive supply voltage (+5 V) for LO
amplifier should be ON for receive and
transmit.
Logic control signal for 4 dB attenuator.
CMOS level compatible.
Logic control signal for 8 dB attenuator.
CMOS level compatible.
DC and RF Ground
DC and RF Ground
Input of LO signal.Signal is internally
AC coupled. Zin = 50
Ω
Logic control signal for LO switch.
CMOS level compatible.
Receive output from IF amplifier.
Signal is internally AC coupled.
Zout = 140
Ω
+ 12 pF
Positive supply voltage (+5 V) for receive
Positive supply voltage (+5 V) for receive
DC and RF Ground
Positive supply voltage (+5 V) for
transmit
Transmit output from RF amplifier.
Signal is internally AC coupled.
Zout = 50
Ω
DC and RF Ground
Positive supply voltage (+5V) for receive
DC and RF Ground
“0” = 0 V to 0.5 V @ 3 µA Typ.
“1” = VDD to VDD - 0.5 V @ 3 µA Typ.
Functional Diagram
1
GND
V
GG
GND
RF IN
V
DD
GND
GND
T2V
DD
TxV
DD
GND
IF IN
GND
LOV
DD
A0
28
GND
R1V
DD
GND
RF OUT
T3V
DD
GND
RxV
DD
RxV
DD
IF OUT
LOSEL
LO IN
GND
GND
A1
14
15
16
17
18
19
20
14
15
21
22
23
24
25
RxVDD
RxVDD
GND
T3VDD
RF OUT
26
27
28
GND
R1VDD
GND
Linear Integrated Transceiver
MD58-0002
V 2.00
General Information
The MD58-0002 is a highly integrated MMIC transceiver
designed for 2.4 - 2.5 GHz ISM band operation. Its gener-
ic architecture and complete up/down conversion func-
tions make this device suitable for low cost, small size
and light weight portable radio systems.
The transceiver is composed of a low noise receive chain
and a high linearity transmit chain. The receive chain con-
sists of an LNA, on-chip image rejection filter, double bal-
anced mixer and an IF amplifier. The transmit chain con-
sists of IF amplifier, double balanced mixer, two common
source RF amplifiers and a digital attenuator with 4- and
8-dB step size. All signal ports, IF input/output, LO input,
RF input/output, are terminated single-ended to reduce
the complexity of the off-chip component design and
ease the interface to other components in the system,
such as IF SAW filters and voltage controlled oscillators
(VCO).
The transceiver typically consumes 50 mA in receive mode
and 95 mA in transmit mode from a +5 V supply. The neg-
ative supply current from a -5 V source is typically
2.6 mA for receive mode and 3.6 mA in transmit mode.
Control Signals
All the control signals (LO switch select, LOSEL and digi-
tal attenuator, A0 and A1) are CMOS compatible single
positive logic (0 V and VDD).
External Components
The MD58-0002 integrates all passive components
required for transceiver functions. The only passive com-
ponents which cannot be absorbed into MMIC are (1) AC
bypass capacitors of 22 pF & 1000 pF and (2) single LC
matching section for IF ports.
The AC bypass capacitors are designed to bypass both high
(GHz) and low (MHz) frequencies. The absolute values are
not critical, but they need to be the right order of magnitude.
The placement of these capacitors needs to be as close to
the package as possible in order to serve their purpose. (See
printed circuit board layout for example.)
The IF input and output ports have an impedance equiv-
alent to a series RC (R = 140Ω , C = 12 pF) network. This
impedance can be matched to 50Ω by using a single LC
section, as shown below.
Power Management
Power supply lines of the MD58-0002 are configured flex-
ibly so that different modes of operation can be achieved.
There are eight supply lines which can be grouped into
three categories: (1) Standby Group - VDD, VGG,
LOVDD; (2) Receive Group - R1VDD, RxVDD; and (3)
Transmit Group - TxVDD, T2VDD, T3VDD.
When the radio is disabled, the MD58-0002 is in a sleep
mode where all the groups are 0 V. During standby mode,
the LO amplifier and some other bias circuitry need to be
ready for receive/transmit modes. The standby group
should be ON at all times during standby, receive and
transmit modes. The following table summarizes the
operation:
Group
Standby
Pins
VDD
VGG
LOVDD
R1VDD
RxVDD
TxVDD
T2VDD
T3VDD
Sleep
Mode
0V
0V
0V
0V
0V
0V
0V
0V
Standby
Mode
+5 V
-5 V
+5 V
0V
0V
0V
0V
0V
Rx
Mode
+5 V
-5 V
+5 V
+5 V
+5 V
0V
0V
0V
Tx
Mode
+5 V
-5 V
+5 V
0V
0V
+5 V
+5 V
+5 V
12 pF
140
Ω
IF IN/OUT
C
L
50
Ω
The values of inductance (L) and capacitance (C) are
determined by the IF frequency and the length of 50
Ω
line between the package and the LC section. The L & C
values for the layout depicted in the sample board layout
are listed below for a variety of IF frequencies.
IF Frequency
200 MHz
250 MHz
350 MHz
400 MHz
Inductor (L)
68 nH
68 nH
33 nH
33 nH
Capacitor (C)
3 pF
3 pF
0.5 pF
0.5 pF
Receive
Transmit
There are several vendors available to supply chip induc-
tors and capacitors.
To guarantee safe operation, the negative supply VGG
should be applied prior to any positive supplies.
Linear Integrated Transceiver
MD58-0002
V 2.00
Typical Receiver Performance Characteristics
1
GAIN AND SSB NOISE FIGURE vs RF FREQUENCY
20
Gain
15
10
NF
5
0
2400
2420
2440
2460
2480
2500
RF FREQUENCY (MHz)
-10
-20
10
0
20
GAIN, INPUT P dB AND SSB NF vs LO DRIVE LEVEL
1
Gain
P1dB
NF
-10
-5
0
5
LO DRIVE LEVEL (dBm)
0
-5
-10
INPUT P1dB AND IP3 vs RF FREQUENCY
Input IP3
GAIN, INPUT P1dB AND SSB NF vs VDD
20
10
0
Gain
P 1dB
-15
-20
-10
-20
2400
2420
2440
2460
2480
2500
4.0
4.5
P1dB
NF
5.0
VDD (volts)
5.5
6.0
RF FREQUENCY (MHz)
20
10
0
-10
-20
GAIN, INPUT P1dB AND SSB NF vs IF FREQUENCY
20
Gain
NF
P1dB
-10
-20
10
0
GAIN, INPUT P1dB AND SSB NF vs TEMPERATURE
Gain
NF
P1dB
200
250
300
350
400
-20
25
TEMPERATURE (°C)
70
IF FREQUENCY (MHz)
1. Test conditions (unless otherwise specified):
RF = 2450 MHz, IF = 200 MHz, LO = 2250 MHz, 0 dBm, VDD = +5 V, VGG = -5 V, TA = +25°C
Linear Integrated Transceiver
MD58-0002
V 2.00
Typical Transmitter Performance Characteristics
1
GAIN and LO LEAKAGE vs RF FREQUENCY
30
20
Gain
10
0
-10
2400
2420
2440
2460
2480
2500
RF FREQUENCY (MHz)
LO Leakage (dBm)
-10
30
20
GAIN, P1dB and LO LEAKAGE vs LO DRIVE LEVEL
Gain
10
0
P1dB
LO Leakage (dBm)
-20
-10
-5
0
5
LO DRIVE LEVEL (dBm)
OUTPUT P1dB and IP3 vs RF FREQUENCY
20
15
IP3
10
5
0
P1dB
10
0
-10
2400
2420
2440
2460
2480
2500
RF FREQUENCY (MHz)
30
20
GAIN, OUTPUT P1dB and LO LEAKAGE vs VDD
Gain
P1dB
LO Leakage (dBm)
4.0
4.5
5.0
V DD (volts)
5.5
6.0
GAIN and OUTPUT P1dB vs IF FREQUENCY
30
25
20
15
10
5
0
200
250
300
350
400
IF FREQUENCY (MHz)
-10
Gain
P 1dB
20
30
GAIN, OUTPUT P1dB and LO LEAKAGE vs TEMPERATURE
Gain
10
P1dB
LO Leakage (dBm)
0
-20
25
TEMPERATURE (°C)
70
1. Test conditions (unless otherwise specified):
RF = 2450 MHz, IF = 200 MHz, LO = 2250 MHz, 0 dBm, VDD = +5 V, VGG = -5 V, TA = +25°C
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