MD59-0022
PCS CDMA Upconverter / Driver
1710—
1710 — 1910 MHz
Features
•
•
•
•
•
•
•
•
High Integrated Upconverter and Driver IC
Operates over 2.7 V to 5V Supply Voltage
+9 dBm Output Power at 51 dBc ACPR
Low current mode for power saving at low output power
Balanced IF Input 265
Ω
Low LO Drive Level -10 dBm
Operates in US and Korean PCS Bands
Miniature TSSOP-16 Plastic Package
TSSOP-16 Plastic Package
1
(.039)
(1)
Pin 16
.041/.031
1,05/,80
.252
6,4
.177/.169
4,5/4,3
Pin 1
.0256
0,65
.201/.193
5,1/4,9
Exposed
Pad
.118
3,0
Description
M/A-COM’s MD59-0022 is a fully integrated upconverter / Driver
IC. It includes a balanced IF amplifier, upconverting mixer, two
stage driver amplifier and LO buffer amplifier in a miniature
TSSOP-16 plastic package. The backside of the lead frame is
exposed to facilitate excellent RF grounding and thermal transfer.
The MD59-0022 is ideally suited for CDMA handset applications
where high linearity and low power consumption are important
transmitter requirements. The MD59-0022 can also operate in a
low power mode to extend system battery life.
The MD59-0022 is fabricated using M/A-COM’s 0.5 micron low
noise E/D GaAs MESFET process. The process features full
passivation for increased performance and reliability.
.118
3,0
1.
Dimensions are: in / mm
Ordering Information
Part Number
MD59-0022TR
MD59-0022RTR
MD59-0022SMB
Package
Forward Tape and Reel
1
Reverse Tape and Reel
1
Sample Board
1. If specific reel size is required, consult factory for part number assignment.
Electrical Specifications T
A
= 25°C, V
DD
= 3.0V
Parameter
Complete Upconverter / High Power Mode
Conversion Gain
CDMA Linear Output Power
2
Noise Figure
I
DD
VSWR (All Ports)
IF Input Impedance
LO-to-RF Port Leakage
Complete UPconverter / Low Power Mode
Conversion Gain
CDMA Linear Output Power
Noise Figure
I
DD
VSWR (All Ports)
IF Input Impedance
LO-to-RF Port Leakage
RF Driver Amplifier
Gain
Gain
V
CTRL
= V
DD
, RF Frequency = 1710 - 1910 MHz
V
CTRL
= 0V, RF Frequency = 1710 - 1910 MHz
dB
dB
TBD
TBD
2
1
1
Test Conditions
Units
Min.
Typ.
Max.
V
CTRL
= V
DD
RF Frequency = 1710 - 1910 MHz
LO Frequency = 1580 - 1780 MHz
LO Power = -10 dBm
IF = 130 MHz
dB
dBm
dB
mA
24
9
10
66
1.5:1
27.2
Ohms
dBm
265
-18
V
CTRL
= (0V)
RF Frequency = 1710 - 1910 MHz
LO Frequency = 1580 = 1780 MHz
LO Power = -10 dBm
IF = 130 MHz
dB
dBm
dB
mA
22
2
10
46
1.5:1
Ohms
dBm
265
-18
1. Complete upconverter / driver measurements taken with a surface mount SAW filter between Mixer Ouput and Driver Input.
2. CDMA Linear power is defined as 51 dBc ACPR at a 1.228 MHz Offset from the carrier frequency.
Specifications subject to change without notice.
V 2.0
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
PCS CDMA Upconverter / Driver 1710—1910 GHz
Pin Configuration
PIN No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PIN
Description
DRV V
DD
1
MD59-0022
Block Diagrams
DRV SRC
DRV V
DD
1 Driver Amplifier first stage supply voltage. Must be RF
bypassed
DRV In
GND
GND
MIX OUT
GND
LO IN
LO V
DD
IF+ V
DD
IF+ IN
IF- IN
IF- V
DD
IF- V
DD
GND
50
Ω
Input to driver amplifier (DC blocking required)
DC and RF Ground
DC and RF Ground
50
Ω
Output of Mixer (DC blocked)
DC and RF Ground
Local Oscillator Input (-10 to -5 dBm) (DC blocked)
LO Amplifier Supply Voltage - Bypassing required
IF+ supply voltage. Off chip inductor and IF bypassing
required
IF+ input port. Off chip matching elements required
IF- input port. Off chip matching elements required
DRV IN
DRV OUT
GND
DRV V
DD
2
GND
GND
MIX OUT
IF- V
DD
GND
IF- IN
LO IN
IF+ IN
IF- supply voltage. Off chip inductor and IF bypassing
required
DC and RF Ground
LO V
DD
IF+ V
DD
DRV V
DD
2 Driver amplifier second stage supply voltage. Must be
RF bypassed
DRV OUT 50
Ω
output of Driver Amplifier (DC blocked internally)
DRV SRC Source bias voltage of driver output stage. Required RF
bypassing and may be used to control ouput stage
current
Sample Board Schematic
D TC 114YE TL
if- in
if+ in
J1
1. Saw filter characteristics to be determined by customer, depending on band of operation. Sample boards are supplied without saw filter installed.
Data supplied with sample board is measured over US PCS1900 Tx Bond using external K&L BPF (p/n SB121-1850/T450-0/OP) and 2 dB attenua-
tion to emulate typical saw filter characteristics.
Specifications subject to change without notice.
V 2.0
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
PCS CDMA Upconverter / Driver 1710—1910 GHz
External Circuitry Parts List
Ref. Designation
C1, C3 C8
C2, C4, C5, C9,
C10, C11, C12, C13
C6, C7
L1
L2, L3
R1
R2
U1
U2
U3
U4
J1
E Series
XFMR
Value
33 pF
1000 pF
10 pF
270 nH
82 nH
18
Ω
68
Ω
RF Bypass
RF / IF Bypass
IF Matching
IF Matching
RF Choke
Source Bias Resistor
Source Bias Resistor for low
current mode
MD59-0022 Upconverter / Driver
Filter LO and Image signals
5:1 Transformer for IF matching
Purpose
MD59-0022
Recommended PCB Configuration
Cross Section View
RF Traces +
Components
RF
Ground
DC
Routing
Customer
DCT114Y Bipolar transistor for current
ETL
switching (ROHM)
DC
Connect
10 PIN DC Connector
Operating Instructions
The MD59-0022 is a highly integrated MMIC upconverter/driver
for the 1710-1910 MHz PCS band. The upconverter/driver provides
exceptional RF performance while consuming low DC current and
is packaged in a low cost plastic package. It is ideal for light weight
battery operated portable radio systems.
The transmit chain consists of a balanced IF amplifier, balanced
mixer with single-ended RF output and a two stage RF driver
amplifier as shown in the block diagram on the previous page.
Surface mount resistors, inductors and capacitors are used in
conjunction with the IC for an optimum performance, tunability
and ease of use. A schematic, showing the IC and required external
components, is shown on page 2.
An external self-bias resistor R1, which is RF bypassed, allows the
current in the driver amplifier to be varied to obtain the required
linear output power. By placing a bipolar transistor in series with
the self-bias resistor, as shown in the schematic, the current
consumption in the driver can be dynamically switched to provide a
high and low power mode of operation. In high power mode, the
bipolar transistor is on and the driver output stage is self-biased
through R1 to provide +9 dBm of linear output power. By switching
off the transistor, the output stage is biased through the higher
resistance R2 thus reducing the current by ~25 mA to give 2 dBm
of linear output power. The dual bipolar (U4) shown in the
assembly drawing may be replaced by a smaller single transistor
package with similar performance.
An external filter is required between the mixer output and driver
amplifier input to reduce the amplitude of the image and local
oscillator signals coming out of the mixer. This filter should have a
50
Ω
input and output impedance. The mixer is a balanced resistive
FET mixer which provides exceptional linearity and isolation with
low loss and no DC current.
The IFA input ports are externally matched to 265
Ω
differential
impedance using two off chip capacitors and an off chip inductor.
This allows maximum flexibility of intermediate frequency and IF
filter. The IFA output ports are matched to the mixer using off chip
inductors, which are also used for DC bias injection. A matching
network such as that shown below can be used to match both the
input and output of the IFA at the required frequency. The inductor
also acts as a choke for the DC supply line.
The LO input port is internally matched to 50
Ω.
A LO buffer
amplifier amplifies the -10 dBm input signal to the level required to
drive the mixer. Performance can be enhanced slightly with a drive
level of -5 dBm.
All DC supply lines must be properly bypassed at RF frequencies to
obtain optimum performance and at lower frequency to maintain
unconditional stability. Capacitors C1, C3 and C8 are RF bypass
capacitors for the LO amplifier and the driver amplifier. The value
and placement of these capacitors are critical in determining the
frequency response of these amplifiers. Capacitor C11 is a source
bypass capacitor for the second stage of the driver amplifier. The
placement of this capacitor will affect the gain of the amplifier. For
best performance, all the RF bypass capacitors should be placed as
shown in the recommended PCB diagram shown above. Capacitors
C2, C4, C5 and C9 are 1000 pF low frequency DC supply bypass
capacitors. Their value and placement are less critical than the
other capacitors. However, for best results, these capacitors should
be located as close to the package leads as possible.
Specifications subject to change without notice.
V 2.0
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
PCS CDMA Upconverter / Driver 1710—1910 GHz
Typical Performance Curves
Korean PCS Band
Conversion Gain vs. Frequency
LO = -10dBm, -5 dBm, V
DD
= 3.0V
28
27
26
25
24
23
22
21
20
19
18
High Power Mode
-5dBm
MD59-0022
US PCS Band
Conversion Gain vs. Frequency
LO = -10 dBm, -5 dBm, V
DD
= 3.0V
26
25
24
GAIN (dB)
23
22
21
20
-10dBm
Low Power Mode
-10dBm
-5dBm
High Power Mode
-5dBm
GAIN (dB)
-10dBm
-5dBm
-10dBm
Low Power Mode
19
18
1.79
1.83
1.84
1.85
1.86
1.74
1.75
1.76
1.77
1.78
1.87
1.88
1.89
1.9
1.91
1.92
1.93
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
Conversion Gain vs. Frequency
V
DD
= 2.8V, 3.0V, 3.3V, LO = -10dBm
28
27
26
25
24
23
22
21
20
19
18
1.74
-20
-22
LO-to-RF Leakage vs. Frequency
LO = -10dBm, -5 dBm, V
DD
= 3.0V
LO LEAKAGE (dBm)
-24
-26
-28
-30
-32
-34
-36
-38
-40
1.83
1.84
1.85
1.86
1.87
1.88
1.89
1.9
1.91
1.92
1.93
-10dBm
-5dBm
High Power Mode
3.3V
2.8V
GAIN (dB)
3.0V
3.3V
2.8V
Low Power Mode
3.0V
1.75
1.76
1.77
1.78
1.79
RF FREQUENCY (GHz)
RF FREQUENCY (GHz)
-20
-22
-24
-26
-28
-30
-32
-34
-36
-38
-40
1.74
LO-to-RF Leakage vs. Frequency
LO = -10dBm, -5 dBm, V
DD
= 3.0V
LO LEAKAGE (dBm)
-5dBm
-10dBm
1.75
1.76
1.77
1.78
1.79
RF FREQUENCY (GHz)
Specifications subject to change without notice.
V 2.0
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
Europe:
Tel. +44 (1344) 869 595, Fax+44 (1344) 300 020
Visit www.macom.com for additional data sheets and product information.
PCS CDMA Upconverter / Driver 1710—1910 GHz
Typical Performance Curves (Cont’d)
ACPR vs. Output Power
LO = -10dBm, -5 dBm, V
DD
= 3.0V
70
68
66
64
62
60
58
56
54
52
50
48
-4
High Power Mode
Low Power Mode
MD59-0022
70
68
66
64
ACPR (dBc)
62
60
58
56
54
52
50
48
ACPR vs. Output Power
V
DD
= 2.8V, 3.0V, 3.3V, LO = -10dBm
High Power Mode
Low Power Mode
ACPR (dBc)
3.3V
3.3V
3.0V
2.8V
2.8V
3.0V
-5dBm
-5dBm
-10dBm
-10dBm
-2
0
2
4
P
OUT
(dBm)
6
8
10
12
-4
-2
0
2
4
P
OUT
(dBm)
6
8
10
12
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
Lo Input Return Loss vs. Frequency
LO = -10dBm, V
DD
= 3.0V
RETURN LOSS (dB)
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
IF Input Return Loss vs. Frequency
LO = -5 dBm, V
DD
= 3.0V
RETURN LOSS (dB)
1.4
1.45
1.5
1.55
1.6
1.65
1.7
LO FREQUENCY (GHz)
1.75
1.8
1.85
1.9
0
0.02
0.04
0.06
0.08
0.1
0.12
0.14
0.16
0.18
0.2
IF FREQUENCY (GHz)
IF Input Return Loss vs. Frequency
LO = -5 dBm, V
DD
= 3.0V
10
RETURN LOSS (dB)
5
-5
-10
-15
-20
-25
-30
-35
-40
1.6
1.65
1.7
1.75
1.8
1.85
1.9
RF FREQUENCY (GHz)
1.95
2
2.05
2.1
0
10
5
RETURN LOSS (dB)
0
-5
-10
-15
-20
-25
-30
-35
-40
Driver Output Return Loss vs. Frequency
High and Low Power Mode, V
DD
= 3.0V
High Power Mode
Low Power Mode
1.6
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2
2.05
2.1
RF FREQUENY (GHz)
10
5
0
-5
-10
-15
-20
-25
-30
-35
-40
1.6
Driver Input Return Loss vs. Frequency
High and Low Power Mode, V
DD
= 3.0V
RETURN LOSS (dB)
1.65
1.7
1.75
1.8
1.85
1.9
1.95
2
2.05
2.1
RF FREQUENCY (GHz)
Specifications subject to change without notice.
V 2.0
North America:
Tel. (800) 366-2266, Fax (800) 618-8883
Asia/Pacific:
Tel.+81-44-844-8296, Fax +81-44-844-8298
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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