MAX9987ETP-T Maxim Integrated Products, MAX9987ETP-T Datasheet

no-image

MAX9987ETP-T

Manufacturer Part Number
MAX9987ETP-T
Description
RF Amplifier +14dBm to +20dBm LO Buffers-Splitters wi
Manufacturer
Maxim Integrated Products
Type
LO Buffer/Splitterr
Datasheet

Specifications of MAX9987ETP-T

Operating Supply Voltage
5 V
Supply Current
221 mA
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
TQFN-20 EP
Minimum Operating Temperature
- 40 C
The MAX9987 and MAX9988 LO buffers/splitters each
integrate a passive two-way power splitter with high-
isolation input and output buffer amplifiers. These
buffers are designed to 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 MAX9987 is
internally matched for the cellular/GSM bands, and the
MAX9988 is matched for the DCS/PCS/UMTS bands.
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 30dB
output-to-output port isolation, and are offered in 5mm
5mm 20-pin thin QFN packages with exposed paddle.
19-2416; Rev 2; 3/04
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.
Cellular/GSM/DCS/PCS/UMTS Base Station
Tx/Rx LO Drive
Base Station Main and Diversity Channels
Coherent Receivers
ISM Wireless LAN
Wireless Local Loop
Local Multipoint Distribution Service
Point-to-Point Systems
PRESCALER
________________________________________________________________ Maxim Integrated Products
RF LO
+14dBm to +20dBm LO Buffers/Splitters
TO PLL
General Description
(+3dBm)
(+7dBm)
OUTPLL
Applications
IN
BIASIN
CONTROL
NETWORK
PLL BUFFER
BIAS
BIAS
Typical Operating Circuit and Block Diagram
INPUT AMP
BIASOUT
PASSIVE TWO-WAY
POWER SPLITTER
MAX9987
MAX9988
*EP = Exposed paddle.
MAX9987ETP-T -40 C to 85 C
MAX9988ETP-T -40 C to 85 C
±1dB Output Power Variation
+14dBm to +20dBm Adjustable Output Power
Two-Way Power Splitting
40dB Reverse Isolation
More than 30dB Output-to-Output Isolation
Low Output Noise: -170dBc/Hz at +17dBm
160mA Supply Current at +17dBm
Isolated PLL Output (+3dBm)
OUTPUT AMP
OUTPUT AMP
PART
(1)
(2)
with ±1dB Variation
OUT1
(+17dBm)
OUT2
(+17dBm)
RANGE
TEMP
Ordering Information
RF INPUT
RF INPUT
(1)
(2)
PIN-
PACKAGE
QFN-EP*
QFN-EP*
20 Thin
20 Thin
IF OUTPUT
(1)
IF OUTPUT
(2)
Features
FREQUENCY
1500MHz to
700MHz to
1100MHz
2200MHz
RANGE
1

Related parts for MAX9987ETP-T

MAX9987ETP-T Summary of contents

Page 1

... Two-Way Power Splitting 40dB Reverse Isolation More than 30dB Output-to-Output Isolation Low Output Noise: -170dBc/Hz at +17dBm 160mA Supply Current at +17dBm Isolated PLL Output (+3dBm) Applications PART MAX9987ETP-T - MAX9988ETP-T - *EP = Exposed paddle. Typical Operating Circuit and Block Diagram OUTPUT AMP PLL BUFFER (1) MAX9987 ...

Page 2

LO Buffers/Splitters with ±1dB Variation ABSOLUTE MAXIMUM RATINGS VCC1, VCC2, VCC3, VCCREF to GND.................................................-0.3V to +6. GND ...................................................-0. OUT1, OUT2, OUTPLL to GND ......................................-0. REF to GND ......................................................Source/Sink 5mA INBIAS, OUTBIAS, ...

Page 3

LO Buffers/Splitters AC ELECTRICAL CHARACTERISTICS—MAX9987 (Typical Application Circuit 4.75V to 5.25V, 50Ω environment, +4dBm < -40°C to +85°C, unless otherwise noted. Typical specifications are for +25°C, unless ...

Page 4

LO Buffers/Splitters with ±1dB Variation AC ELECTRICAL CHARACTERISTICS—MAX9988 (Typical Application Circuit 4.75V to 5.25V, 50Ω environment, +6dBm < -40°C to +85°C, unless otherwise noted. Typical specifications are for ...

Page 5

LO Buffers/Splitters (V = 5.0V, nominal bias 900MHz guaranteed operating range, and are provided for reference only.) SUPPLY CURRENT vs. OUTPUT POWER OUTMAIN 180 175 170 T = +25°C AND +85°C 165 ...

Page 6

LO Buffers/Splitters with ±1dB Variation (V = 5.0V, nominal bias 900MHz guaranteed operating range, and are provided for reference only.) SUPPLY CURRENT vs. SUPPLY VOLTAGE 170 165 160 PLL BIASED 155 150 ...

Page 7

LO Buffers/Splitters (V = 5.0V, nominal bias 1800MHz guaranteed operating range, and are provided for reference only.) SUPPLY CURRENT vs. OUTPUT POWER 180 175 T = +85°C A 170 165 160 T ...

Page 8

LO Buffers/Splitters with ±1dB Variation (V = 5.0V, nominal bias 1800MHz guaranteed operating range, and are provided for reference only.) SUPPLY CURRENT vs. SUPPLY VOLTAGE 180 175 170 PLL BIASED 165 160 ...

Page 9

LO Buffers/Splitters PIN NAME 13, GND Ground 17, 18 Input. Internally matched 50 RF input. AC couple to this pin. Supply. Supply connection for on-chip voltage and current references. See ...

Page 10

LO Buffers/Splitters with ±1dB Variation Table 1. External Resistor Values for +14dBm to +20dBm Output Power NOMINAL OUTPUT POWER (dBm) +20 1.35k +19 2.2k +18 5.0k +17 Open +16 Open +15 Open +14 ...

Page 11

LO Buffers/Splitters 5.0V 5. 100Ω OUT TO PLL (+3dBm) C14 GND INPUT FROM VCCREF 5. GND REF * FOR THESE VALUES, SEE TABLE 1. FOR CAPACITOR VALUES, SEE ...

Page 12

... 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 © 2004 Maxim Integrated Products Printed USA is a registered trademark of Maxim Integrated Products ...

Related keywords