MAX9989ETP+ [MAXIM]
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| 型号： | MAX9989ETP+ |
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MAXIM INTEGRATED PRODUCTS |
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19-2486; Rev 0; 7/02
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
General Description
Features
The MAX9989 and MAX9990 LO buffers provide the high
output (+14dBm to +20dBm) necessary to drive the LO
inputs of high-linearity passive mixers, while offering 40dB
reverse isolation to prevent LO pulling. The MAX9989 is
internally matched for the cellular/GSM bands, and the
MAX9990 is matched for the DCS/PCS/UMTS bands.
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The Typical Application Circuit provides a nominal
+17dBm output power with 1dB variation over supply,
temperature, and input power. With two optional resis-
tors, the output power can be precision set from
+14dBm to +20dBm. The devices offer more than 35dB
main driver output to PLL amp output isolation. Each
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✕
device is offered in a 5mm 5mm 20-pin thin QFN
package with exposed paddle.
Applications
Cellular/GSM/DCS/PCS/UMTS Base Station
Tx/Rx LO Drives
Ordering Information
TEMꢀ
ꢀIN-
FREQUENCY
ꢀART
RANGE
ꢀACKAGE RANGEB(MHz)
Coherent Receivers
20 Thin
ISM Wireless LAN
MAX9989ETP -40°C to +85°C
700 to 1100
QFN-EP*
Wireless Local Loop
MAX9990ETP -40°C to +85°C 20 QFN-EP* 1500 to 2200
*EP = Exposed paddle.
Local Multipoint Distribution Service
Point-to-Point Systems
Typical Application Circuit/Pin Configuration appears at end of data sheet.
Typical Operating Circuit and Block Diagram
PLL BUFFER
MAX9989
MAX9990
OUTPLL
(+3dBm)
TO PLL
PRESCALER
RF INPUT
OUTPUT AMP
IN
(+7dBm)
OUTLO
(+17dBm)
IF OUTPUT
INPUT AMP
RF LO
BIAS
BIASIN
BIASOUT
BIAS
CONTROL
NETWORK
________________________________________________________________ Maxim Integrated Products
±
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
AdS LUTEBMAXIMUMBRATINGS
VCC1, VCC2, VCC3, VCCREF to GND .................-0.3V to +6.0V
Continuous Power Dissipation (T = +70°C)
A
IN to GND...................................................-0.3V to (V
OUTLO, OUTPLL to GND...........................-0.3V to (V
REF to GND ......................................................Source/Sink 5mA
INBIAS, OUTBIAS to GND...................................-0.3V to +0.75V
PLLBIAS ......................................................................Sink 25mA
RF Input Power...............................................................+20dBm
+ 0.3V)
+ 0.3V)
20-Pin Thin QFN (derate 21mW/°C above +70°C) ....1667mW
CC
CC
θ
.................................................................................+48°C/W
JA
Junction Temperature......................................................+150°C
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DCBELECTRICALBCHARACTERISTICS—MAX9989
(Typical Application Circuit, V
= 4.75V to 5.25V, input and outputs terminated in 50Ω, T = -40°C to +85°C. Typical specifications
A
CC
are for V
= 5.0V and T = +25°C.) (Note 1)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
Supply Current
V
4.75
5.00
5.25
V
CC
Low power setting
(see Table 1 for resistor values)
77
Nominal power setting
(R2–R5 not installed) (Note 2)
I
94
105
146
116
mA
CC
High power setting
(see Table 1 for resistor values)
DC ELECTRICAL CHARACTERISTICS—MAX9990
(Typical Application Circuit, V
= 4.75V to 5.25V, input and outputs terminated in 50Ω, T = -40°C to +85°C. Typical specifications
A
CC
are for V
= 5.0V and T = +25°C.) (Note 1)
CC
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Voltage
Supply Current
V
4.75
5.00
5.25
V
CC
Low power setting
(see Table 1 for resistor values)
87
Nominal power setting
(R2–R5 not installed) (Note 2)
I
98
111
154
122
mA
CC
High power setting
(see Table 1 for resistor values)
2
_______________________________________________________________________________________
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
AC ELECTRICAL CHARACTERISTICS—MAX9989
(Typical Application Circuit, V
= 4.75V to 5.25V, 50Ω environment, +4dBm < P < +10dBm, 700MHz < f < 1100MHz,
CC
IN IN
= 5.0V, P = +7dBm, f = 900MHz, and
T
A
T
A
= -40°C to +85°C, unless otherwise noted. Typical specifications are for V
= +25°C, unless otherwise noted.) (Note 1)
CC
IN
IN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Operating Frequency
f
700
1100
MHz
Low power setting, P = +4dBm
IN
(see Table 1 for resistor values)
14.3
Nominal power setting,
+4dBm < P < +10dBm
17.3
0.8
IN
Output Power
P
dBm
dBm
OUTLO
4.75V < V
< 5.25V
CC
-40°C < T < +85°C (R2–R5 not installed)
A
High power setting, P = +10dBm
IN
(see Table 1 for resistor values)
19.7
Output Power (PLL Driver)
Input VSWR
P
3.7
OUTPLL
VSWR
1.2:1
1.7:1
IN
Output VSWR
VSWR
OUT
V
= 5.0V, 100MHz offset
CC
Output-Noise Power Density
OUTLO to RFIN Isolation
P
-152
48
dBm/Hz
dB
NOISE
(R2–R5 not installed)
V
= 5.0V, nominal power setting
CC
S12
(R2–R5 not installed)
AC ELECTRICAL CHARACTERISTICS—MAX9990
(Typical Application Circuit, V
= 4.75V to 5.25V, 50Ω environment, +6dBm < P < +12dBm, 1500MHz < f < 2200MHz, and
CC
IN
IN
T
A
T
A
= -40°C to +85°C, unless otherwise noted. Typical specifications are for V
= +25°C, unless otherwise noted.) (Note 1)
= 5.0V, P = +9dBm, f = 1800MHz, and
CC IN IN
PARAMETER
SYMBOL
CONDITIONS
MIN
1500
TYP
MAX
UNITS
Operating Frequency
Output Power
f
2200
MHz
Low power setting, P = +6dBm
IN
(see Table 1 for resistor values)
14.2
Nominal power setting,
+6dBm < P < +12dBm
17.3
0.8
IN
P
dBm
dBm
OUTLO
4.75V < V
< 5.25V
CC
-40°C < T < +85°C (R2–R5 not installed)
A
High power setting, P = +12dBm
IN
(see Table 1 for resistor values)
19.5
Output Power (PLL Driver)
Input VSWR
P
3.6
OUTPLL
VSWR
1.5:1
1.4:1
-152
IN
Output VSWR
VSWR
OUT
Output-Noise Power Density
P
V
V
= 5.0V, 100MHz offset
dBm/Hz
dB
NOISE
CC
CC
= 5.0V, nominal power setting
(R2–R5 not installed)
OUTLO to RFIN Isolation
S12
49
Note 1: Devices are 100% DC screened and AC production tested for functionality. Data sheet typical specifications are derived
from the average of 30 units from a typical lot, and are tested under the conditions specified for the typical specifications.
Note 2: DC current limits at -40°C are guaranteed by design and characterization.
_______________________________________________________________________________________
3
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Typical Operating Characteristics
(V
CC
= 5.0V, nominal bias, f = 900MHz, P = +7dBm, T = +25°C, unless otherwise noted.) (Shaded regions are outside the
IN IN A
guaranteed operating range, and are provided for reference only.)
MAX9989
OUTPUT POWER vs. INPUT POWER
OUTLO
SUPPLY CURRENT vs. OUTPUT POWER
OUTLO
OUTPUT POWER vs. INPUT POWER
OUTPLL
120
115
110
105
100
6
5
20
19
18
17
16
15
14
13
12
11
10
T
= +25°C
A
T
= -40°C
A
4
T
= -40°C
A
3
T
= +85°C
A
2
T
= +25°C
A
1
T
= +25°C
T
= +85°C
A
A
T
= +85°C
A
0
-1
-2
-3
-4
T
= -40°C
A
10 11 12 13 14 15 16 17 18 19 20
OUTPUT POWER (dBm)
-5 -4 -3 -2 -1
0
1
2
3
4
5
6
7
8
9 10
-6 -4 -2
0
2
4
6
8
10
INPUT POWER (dBm)
INPUT POWER (dBm)
OUTPUT POWER vs. FREQUENCY
OUTPUT POWER vs. FREQUENCY
OUTPLL
OUTLO
20
19
18
17
16
15
14
7
6
5
4
3
2
1
0
T
= -40°C
A
T
= +25°C
A
T
= +85°C
A
T
= -40°C
A
T
= +25°C
A
T
= +85°C
A
500 600 700 800 900 1000 1100 1200
OPERATING FREQUENCY (MHz)
500 600 700 800 900 1000 1100 1200
OPERATING FREQUENCY (MHz)
OUTPUT POWER AND SUPPLY CURRENT
OUTPUT POWER vs. SUPPLY VOLTAGE
vs. TEMPERATURE
MAX9989 toc06
MAX9989 toc07
18.0
17.8
17.6
17.4
17.2
17.0
16.8
16.6
16.4
16.2
16.0
112.0
18.0
17.5
17.0
16.5
16.0
15.5
15.0
14.5
14.0
6.0
111.5
111.0
110.5
110.0
109.5
109.0
108.5
108.0
107.5
107.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
OUTLO
P
I
OUTLO
CC
OUTPLL
-40
-20
0
20
40
60
80
4.5
4.7
4.9
5.1
5.3
5.5
AMBIENT TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
4
_______________________________________________________________________________________
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Typical Operating Characteristics (continued)
(V
CC
= 5.0V, nominal bias, f = 900MHz, P = +7dBm, T = +25°C, unless otherwise noted.) (Shaded regions are outside the
IN IN A
guaranteed operating range, and are provided for reference only.)
MAX9989
SMALL-SIGNAL GAIN vs. FREQUENCY
INPUT RETURN LOSS vs. FREQUENCY
SUPPLY CURRENT vs. SUPPLY VOLTAGE
19
18
17
16
15
14
13
0
-5
120
115
110
105
100
95
V
T
= 5V
CC
V
A
P
= 5V
CC
= +25°C
IN
= +25°C
A
T
P
= -15dBm
IN
= +7dBm
-10
-15
-20
-25
-30
-35
-40
NOMINAL BIAS
PLL BIASED
PLL NOT BIASED
90
500 600 700 800 900 1000 1100 1200
FREQUENCY (MHz)
500
600
700
800
900 1000 1100
4.5
4.7
4.9
SUPPLY VOLTAGE (V)
5.1
5.3
5.5
FREQUENCY (MHz)
OUT-TO-IN ISOLATION vs. FREQUENCY
OUTPUT RETURN LOSS vs. FREQUENCY
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
0
2
V
A
P
= 5V
CC
= +25°C
IN
V
A
P
= 5V
CC
= +25°C
IN
T
T
= +7dBm
4
= +7dBm
6
8
OUTPLL TO IN
OUTLO
10
12
14
16
18
20
OUTLO TO IN
OUTPLL
800
500
600
700
800
900 1000 1100
500
600
700
900 1000 1100
FREQUENCY (MHz)
FREQUENCY (MHz)
PLL ISOLATION vs. FREQUENCY
OUTPUT NOISE POWER vs. INPUT POWER
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-70
-140
-145
-150
-155
-160
V
A
P
= 5V
CC
= +25°C
IN
100MHz OFFSET
T
OUTPLL TO
OUTLO
= +7dBm
OUTLO TO OUTPLL
500
600
700
800
900 1000 1100
4
5
6
7
8
9
10 11 12 13
FREQUENCY (MHz)
INPUT POWER (dBm)
_______________________________________________________________________________________
5
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Typical Operating Characteristics (continued)
(V
CC
= 5.0V, nominal bias, f = 1800MHz, P = +9dBm, T = +25°C, unless otherwise noted.) (Shaded regions are outside the
IN IN A
guaranteed operating range, and are provided for reference only.)
MAX9990
SUPPLY CURRENT vs. OUTPUT POWER
OUTLO
OUTPUT POWER vs. INPUT POWER
OUTLO
OUTPUT POWER vs. INPUT POWER
OUTPLL
140
135
130
125
120
115
110
105
100
20
19
18
17
16
15
14
13
12
11
10
6
5
T
= -40°C
A
T
= -40°C
A
4
T
= +25°C
A
3
2
1
T
= +85°C
A
T
= +25°C
T
= +85°C
A
A
T
= +85°C
A
0
T
= +25°C
A
-1
-2
-3
-4
T
= -40°C
A
8
9
10 11 12 13 14 15 16 17 18
OUTPUT POWER (dBm)
-5 -4 -3 -2 -1 0 1 2 3 4 5 6 7 8 9 10
-6 -4 -2
0
2
4
6
8
10
INPUT POWER (dBm)
INPUT POWER (dBm)
OUTPUT POWER vs. FREQUENCY
OUTLO
OUTPUT POWER vs. FREQUENCY
OUTPLL
20
19
18
17
16
15
14
13
12
11
10
6
T
= -40°C
T
= +25°C
A
A
T
= +85°C
T
= +25°C
A
A
5
4
3
2
1
0
T
= +85°C
A
T
= -40°C
A
1500 1600 1700 1800 1900 2000 2100 2200
OPERATING FREQUENCY (MHz)
1500 1600 1700 1800 1900 2000 2100 2200
OPERATING FREQUENCY (MHz)
OUTPUT POWER AND SUPPLY CURRENT
OUTPUT POWER vs. SUPPLY VOLTAGE
vs. TEMPERATURE
MAX9990 toc06
MAX9990 toc07
18.0
17.5
17.0
16.5
16.0
15.5
15.0
14.5
14.0
18.0
17.5
17.0
16.5
16.0
15.5
15.0
130
6.0
5.5
5.0
4.5
4.0
3.5
3.0
2.5
2.0
125
120
115
110
105
100
P
OUTLO
OUTLO
OUTPLL
I
CC
-40 -20
0
20
40
60
80
4.5
4.7
4.9
5.1
5.3
5.5
AMBIENT TEMPERATURE (°C)
SUPPLY VOLTAGE (V)
6
_______________________________________________________________________________________
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Typical Operating Characteristics (continued)
(V
CC
= 5.0V, nominal bias, f = 1800MHz, P = +9dBm, T = +25°C, unless otherwise noted.) (Shaded regions are outside the
IN IN A
guaranteed operating range, and are provided for reference only.)
MAX9990
SMALL-SIGNAL GAIN vs. FREQUENCY
OUTLO
SUPPLY CURRENT vs. SUPPLY VOLTAGE
INPUT RETURN LOSS vs. FREQUENCY
120
115
110
105
100
-6
-8
18
17
16
15
14
13
12
11
10
V
T
= 5V
V
P
= 5V
CC
CC
= +25°C
= -15dBm
A
IN
P
= +9dBm
NOMINAL BIAS
IN
-40°C
-10
-12
-14
-16
-18
-20
+25°C
+85°C
PLL BIASED
PLL NOT BIASED
4.5
4.7
4.9
5.1
5.3
5.5
1500 1600 1700 1800 1900 2000 2100 2200
FREQUENCY (MHz)
1500 1600 1700 1800 1900 2000 2100 2200
FREQUENCY (MHz)
SUPPLY VOLTAGE (V)
OUT-TO-IN ISOLATION vs. FREQUENCY
OUTPUT RETURN LOSS vs. FREQUENCY
15
20
25
30
35
40
45
50
55
60
65
0
5
V
T
= 5V
CC
V
A
P
= 5V
CC
= +25°C
IN
= +25°C
A
T
P
= +9dBm
IN
= +9dBm
OUTPLL TO IN
10
15
20
25
30
35
40
OUTLO
OUTPLL
OUTLO TO IN
1500 1600 1700 1800 1900 2000 2100 2200
FREQUENCY (GHz)
1500 1600 1700 1800 1900 2000 2100 2200
FREQUENCY (MHz)
PLL ISOLATION vs. FREQUENCY
OUTPUT NOISE POWER vs. INPUT POWER
-15
-20
-25
-30
-35
-40
-45
-50
-55
-60
-65
-140
-145
-150
-155
-160
100MHz OFFSET
PLL TO OUTLO
OUTLO TO PLL
V
A
P
= 5V
CC
= +25°C
IN
T
= +9dBm
1500 1600 1700 1800 1900 2000 2100 2200
FREQUENCY (MHz)
4
5
6
7
8
9
10 11 12 13
INPUT POWER (dBm)
_______________________________________________________________________________________
7
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Pin Description
PIN
NAME
FUNCTION
1, 4, 8, 9,
13–18, EP
Ground. Provide 5–10 plated vias from EP to system ground plane for optimal thermal and RF
performance.
GND
2
3
IN
Input. Internally matched 50Ω RF input. AC couple to this pin so as not to disturb input bias level.
Supply. Supply connection for on-chip voltage and current references. See Applications Information
for information on decoupling.
VCCREF
Voltage Reference Output. Output for on-chip 1.5V bandgap voltage reference. See the
Applications Information section for information on decoupling.
5
6
REF
Bias Connection for Input Buffer. Set compressed power point for input amplifier with a resistor to
REF or GND. For +17dBm output power, no external biasing resistors are required. See the
Applications Information section for more information.
BIASIN
Bias Connection for LO Output Amplifier. Set compressed power point for OUTLO with a resistor to
REF or ground. For +17dBm output power, no external biasing resistors are required. See the
Applications Information section for more information.
7
BIASOUT
OUTLO
LO Output. Internally matched 50Ω RF output. AC couple to this pin so as not to disturb output bias
level.
10
11, 12
19
VCC2
VCC1
Supply. Supply connection for OUTLO.
Supply. Supply connection for input amplifier.
PLL Output. Output for driving optional external PLL. Requires external 100Ω pullup to V
for bias.
CC
For applications not requiring the PLL driver, removing R1 leaves OUTPLL unbiased, saving about
20
OUTPLL
12mA current.
Input Amplifier
Detailed Description
A single low-noise input amplifier provides gain and iso-
lation. The compressed output power for this stage is
controlled by the bias setting resistors R2 or R4 (see the
Typical Application Circuit). These resistors are not
required for the nominal +17dBm output; see Table 1 for
bias resistor values to obtain +14dBm to +20dBm out-
put power.
The MAX9989/MAX9990 LO buffers each consist of a
single-input amplifier, an output amplifier, and a second
buffer amplifier to drive the LO’s PLL. The bias currents
for the amplifiers are adjustable through off-chip resis-
tors, allowing the output level to be precision set any-
where from +14dBm to +20dBm. The PLL output is
preset to +3dBm (about 900mV
into 50Ω).
P-P
The input is internally matched to 50Ω, and typical
VSWR is no more than 2:1 over all operating conditions.
Since the input is internally biased, provide a DC block
at the input pin.
Power levels are typically 1dB over the full supply, input
power, and temperature range. Precision power control
is achieved by internal control circuitry. Maintaining tight
power control keeps the system engineer from over
specifying the LO drive in order to guarantee a linearity
specification in the base-station mixer. More than 40dB
isolation between the LO output and the input prevents
VCO pulling.
PLL Amplifier and Output
A small amount of power is tapped off from the input
amplifier’s output, and fed to a high-isolation buffer to
drive the PLL output at about +3dBm. If the PLL output
is not required, it can be disabled by removing R1; dis-
abling the PLL output saves 12mA supply current.
The MAX9989 is specified from 700MHz to 1100MHz,
and the MAX9990 is specified from 1500MHz to
✕
2200MHz. Both are offered in compact 5mm 5mm 20-
pin QFN thin packages with EP.
8
_______________________________________________________________________________________
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Table 1. External Resistor Values for +14dBm to +20dBm Output Power
NOMINAL
OUTPUT POWER
(dBm)
MAX9989
INPUT DRIVE
(dBm)
MAX9990
INPUT DRIVE
(dBm)
R2 (kΩ)
R4 (kΩ)
R3 (kΩ)
R5 (kΩ)
+20
+19
+18
+17
+16
+15
+14
1.35
2.2
Open
Open
Open
Open
1.8
2.0
3.0
Open
Open
Open
Open
3.0
10
9
3
12
11
10
9
3
3
3
3
5.0
6.0
8
3
3
3
3
3
Open
Open
Open
Open
Open
Open
Open
Open
7
3
6
8
3
3
3
0.9
1.1
5
7
0.6
0.6
4
6
Applications Information
Table 2. Component Values for Typical
Application Circuit
Input and Output Matching
All input and output matching is accomplished on chip;
no external matching circuitry is required. Use a DC
block of about 47pF (low band) or 22pF (high band) at
the input and the outputs. Because these parts are
internally broadband matched, adjusting external com-
ponent values can optimize performance for a particu-
lar band.
COMPONENT VALUE
DESIGNATION
MAX9989
MAX9990
(LOWBAND)
(HIGHBAND)
C1, C2, C4, C6, C8,
C9, C10
47pF
22pF
C3, C7, C11
C5
0.1µF
5pF
0.1µF
22pF
Input Drive Level
In the case of the MAX9989, the typical required input
drive level is +7dBm for +17dBm output, or +10dBm for
+20dBm output. The MAX9990 uses slightly higher
input levels (see Table 1). The typical VCO cannot pro-
vide sufficient drive by itself; the typical application fol-
lows the VCO with attenuation (about +3dB), and then
with a low-noise gain block. This allows the VCO to
drive the MAX9989/MAX9990 input at the required level
without being load-pulled.
R2–R5
R1
See Table 1
100Ω
See Table 1
100Ω
Output Amplifier
The output amplifier is similar to the input amplifier,
except it is biased higher to provide more output power.
For example, with an input power of +10dBm, the
MAX9989 can deliver +20dBm. The bias is adjustable;
see Table 1 for details.
Output Drive Level
The output drive of the MAX9989/MAX9990 is nominally
+17dBm 1dB. This is the typical application, with no
external bias-setting resistors at INBIAS and OUTBIAS.
Output power can be set from +14dBm to +20dBm by
using the bias-setting resistor values listed in Table 1.
The RF output is internally matched to 50Ω, with a typi-
cal VSWR limit of 2:1. Provide DC-blocking capacitors
at the outputs.
Chip Information
TRANSISTOR COUNT: 89
PROCESS: BiCMOS
_______________________________________________________________________________________
9
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Typical Application Circuit/Pin Configuration
5.0V
C7
5.0V
C11
C10
C8
R1
100Ω
OUT TO PLL
(+3dBm)
C9
20
19
18
17
16
GND
IN
GND
1
15
MAX9989
MAX9990
INPUT FROM LO
5.0V
GND
GND
2
3
4
5
14
13
12
11
C1
VCCREF
C3
C2
VCC2
VCC2
GND
REF
5.0V
BIAS
C5
C6
6
7
8
9
10
TO OUTPUT 2
C4
R4*
R5*
R2*
R3*
FOR THESE VALUES, SEE TABLE 1.
FOR CAPACITOR VALUES, SEE TABLE 2.
10 ______________________________________________________________________________________
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
D2
0.15
C A
D
b
0.10 M
C A B
C
L
D2/2
D/2
k
PIN # 1
I.D.
0.15
C
B
PIN # 1 I.D.
0.35x45
E/2
E2/2
C
(NE-1) X
e
L
E2
E
k
L
DETAIL A
e
(ND-1) X
e
C
C
L
L
L
L
e
e
0.10
C
A
0.08
C
C
A3
A1
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE
16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0140
C
2
______________________________________________________________________________________ 11
+14dBm to +20dBm LO Buffers
with 1dB ꢀariation
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
COMMON DIMENSIONS
EXPOSED PAD VARIATIONS
NOTES:
1. DIMENSIONING & TOLERANCING CONFORM TO ASME Y14.5M-1994.
2. ALL DIMENSIONS ARE IN MILLIMETERS. ANGLES ARE IN DEGREES.
3. N IS THE TOTAL NUMBER OF TERMINALS.
4. THE TERMINAL #1 IDENTIFIER AND TERMINAL NUMBERING CONVENTION SHALL CONFORM TO JESD 95-1
SPP-012. DETAILS OF TERMINAL #1 IDENTIFIER ARE OPTIONAL, BUT MUST BE LOCATED WITHIN THE
ZONE INDICATED. THE TERMINAL #1 IDENTIFIER MAY BE EITHER A MOLD OR MARKED FEATURE.
5. DIMENSION b APPLIES TO METALLIZED TERMINAL AND IS MEASURED BETWEEN 0.25 mm AND 0.30 mm
FROM TERMINAL TIP.
6. ND AND NE REFER TO THE NUMBER OF TERMINALS ON EACH D AND E SIDE RESPECTIVELY.
7. DEPOPULATION IS POSSIBLE IN A SYMMETRICAL FASHION.
8. COPLANARITY APPLIES TO THE EXPOSED HEAT SINK SLUG AS WELL AS THE TERMINALS.
9. DRAWING CONFORMS TO JEDEC MO220.
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE
10. WARPAGE SHALL NOT EXCEED 0.10 mm.
16, 20, 28, 32L, QFN THIN, 5x5x0.8 mm
APPROVAL
DOCUMENT CONTROL NO.
REV.
2
21-0140
C
2
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
12 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600
© 2002 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
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