TDA8920TH/N1 Maxim Integrated Products, TDA8920TH/N1 Datasheet

TDA8920TH/N1

Manufacturer Part Number

TDA8920TH/N1

Description

Dual-Band, Low-Noise Amplifiers

Manufacturer

Maxim Integrated Products

Datasheet

1.MAX2653EUA-T.pdf (16 pages)

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The MAX2651/MAX2652/MAX2653 silicon germanium

(SiGe), low-noise amplifiers (LNAs) are intended for use

in GSM900, DCS1800, and PCS1900 band wireless

handsets. The MAX2651/MAX2652 consist of two LNAs,

one optimized for the GSM900 band and the other opti-

mized for the DCS1800/PCS1900 bands. They feature a

band-select pin to switch between the two LNAs, as well

as a gain-step input to reduce the gain of each LNA by

20dB and reduce supply current. The MAX2652 is func-

tionally equivalent to the MAX2651, but features a low-

power shutdown mode. The MAX2653 consists of a

single LNA optimized for the DCS1800 and PCS1900

bands, and has a shutdown feature and a 20dB gain

step.

The MAX2652 and MAX2653 together form an ideal

solution for triple-band phone applications (GSM, DCS,

and PCS bands).

The MAX2651/MAX2652/MAX2653 are fabricated using

an advanced high-frequency SiGe bipolar process. As

a result, all devices provide low noise figure, high gain,

and high input third-order intercept point (IP3) perfor-

mance at the GSM, DCS, and PCS bands. A pull-up

resistor to V

adjustability. A minimal number of external components

are needed for input and output matching, helping to

reduce board space.

The MAX2651/MAX2652 are packaged in a 10-pin µMAX,

while the MAX2653 is packaged in an 8-pin µMAX. All

devices operate from a single +2.7V to +3.3V supply.

19-1506; Rev 1; 10/99

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 1-800-835-8769.

( ) ARE FOR MAX2651.

SHDN (GND)

GSM900/DCS1800 Dual-Band Phones

GSM900/DCS1800/PCS1900 Triple-Band Phones

DCS1800 or PCS1900 Single-Mode Phones

IS-136 TDMA Dual-Band Phones

GSMIN

DCSIN

BAND

GND

at each LNA output allows for gain

________________________________________________________________ Maxim Integrated Products

LOW

General Description

HIGH

Applications

Dual-Band, Low-Noise Amplifiers

GSM900 and DCS1800/PCS1900

MAX2651

MAX2652

CONTROL

DC BIAS

Pin Configurations/Functional Diagrams

GAIN

GSMOUT

DCSOUT

GND

o Wide Operating Frequency Range

o Excellent Low-Noise Performance

o High Gain

o 20dB Gain Reduction in Low-Gain Mode

o Externally Adjustable Gain

o +2.7V to +3.3V Single-Supply Operation

o Low Supply Current

o 0.25µA Shutdown Current (MAX2652/53)

DCSIN

SHDN

MAX2651EUB

MAX2652EUB

MAX2653EUA

GND

800MHz to 1000MHz (MAX2651/52)

1800MHz to 2000MHz (MAX2651/52/53)

1.2dB/1.3dB over GSM Receive Band

(MAX2651/52)

1.8dB/1.8dB/1.7dB over DCS Receive Band

(MAX2651/52/53)

18dB over GSM Receive Band (MAX2651/52)

18dB/17.5dB/18.5dB over DCS Receive Band

(MAX2651/52/53)

5.4mA to 7.0mA in High-Gain Mode

2.2mA in Low-Gain Mode

PART

LOW

-40°C to +85°C

TEMP. RANGE

HIGH

Ordering Information

CONTROL

MAX2653

DC BIAS

10 µMAX

8 µMAX

PIN-PACKAGE

Features

GAIN

DCSOUT

GND

Related parts for TDA8920TH/N1

TDA8920TH/N1 Summary of contents

Page 1

... DCSIN 4 LOW BAND 5 HIGH ( ) ARE FOR MAX2651. ________________________________________________________________ Maxim Integrated Products For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800. For small orders, phone 1-800-835-8769. GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers o Wide Operating Frequency Range 800MHz to 1000MHz (MAX2651/52) ...

Page 2

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V CC SHDN, GAIN, BAND to GND......................-0. GSMIN, DCSIN ..........................................1.0V peak (+10dBm) Input Current (all digital inputs) .......................................±10mA Continuous Power Dissipation 8-Pin µMAX (derate ...

Page 3

DC ELECTRICAL CHARACTERISTICS—MAX2653 = +2.7V to +3.3V, SHDN = GAIN = otherwise noted. Typical values are at V PARAMETER SYMBOL Input Voltage Range V Input Supply Current Shutdown Supply Current I SHDN Input Logic Threshold High Input ...

Page 4

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX2651 (continued) (MAX2651 EV kit 945MHz (GSM band optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V (Note 2) PARAMETER SYMBOL Input Third-Order ...

Page 5

AC ELECTRICAL CHARACTERISTICS—MAX2652 (MAX2652 EV kit 945MHz (GSM band optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V (Note 2) PARAMETER SYMBOL Input Frequency Range f IN (Note 3) Power Gain ...

Page 6

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers AC ELECTRICAL CHARACTERISTICS—MAX2652 (continued) (MAX2652 EV kit 945MHz (GSM band optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V (Note 2) PARAMETER SYMBOL  Input ...

Page 7

AC ELECTRICAL CHARACTERISTICS—MAX2653 (MAX2653 EV kit 1850MHz (DCS band optimized for the frequency band of interest, all input/output ports terminated in 50Ω, V noted.) (Note 2) PARAMETER SYMBOL Input Frequency Range f IN (Note 3) Power ...

Page 8

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers (MAX2651 EV kit +3.0V, input and output matched with recommended matching networks POWER GAIN vs. INPUT POWER MA\X2651- LOW GAIN 16 HIGH GAIN 945MHz ...

Page 9

EV kit +3.0V, input and output matched with recommended matching networks POWER GAIN vs. INPUT POWER MA\X2651-08 19 LOW GAIN 17 15 HIGH GAIN 1840MHz 9 -25 -20 -15 -10 -5 ...

Page 10

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers (MAX2652 EV kit +3.0V, input and output matched with recommended matching networks POWER GAIN vs. INPUT POWER MA\X2652- LOW GAIN 18 HIGH GAIN 16 14 -10 12 -12 ...

Page 11

EV kit +3.0V, input and output matched with recommended matching networks POWER GAIN vs. INPUT POWER MA\X2652-toc04 20 LOW GAIN 18 HIGH GAIN 945MHz 8 -25 -20 -15 -10 ...

Page 12

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers (MAX2653 EV kit +3.0V, input and output matched with recommended matching networks POWER GAIN vs. INPUT POWER MA\X2651-15 18 LOW GAIN 16 HIGH GAIN 1840MHz ...

Page 13

PIN MAX2652 MAX2651 MAX2652 MAX2653 — — — — 15pF GSM INPUT ...

Page 14

GSM900 and DCS1800/PCS1900 Dual-Band, Low-Noise Amplifiers 6.8nH 5.6pF GSM INPUT (925MHz TO 960MHz) 47pF DCS INPUT (1805MHz TO 1880MHz) 1.1pF 220pF Figure 2. MAX2652 Typical Application Circuit 100pF DCS INPUT (1805MHz TO 1880MHz) 2200pF 1.5pF * FOR OPTIMUM PCS-BAND (1930MHz ...

Page 15

Detailed Description The MAX2651/MAX2652/MAX2653 offer a step gain in the LNA to optimize the receiver’s dynamic range. A logic-level low at GAIN reduces the active LNA’s gain by about 20dB and reduces supply current by 3.5mA. Shutdown Functionality The MAX2652/MAX2653 ...

Page 16

... Maxim reserves the right to change the circuitry and specifications without notice at any time. implied. Maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 16 ____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 © ...

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