Rainbow Electronics MAX2130 User Manual

General Description

The MAX2130 broadband, low-distortion, low-noise,
two-output amplifier performs preamp, loop-out, and
buffer functions in TV tuner applications. The device
integrates functions typically achieved with discrete
components into the space-saving 8-pin µMAX-EP
package. The MAX2130 provides a gain of +15dB with
a noise figure less than 3.2dB over the 44MHz to
878MHz frequency range. The MAX2130 features an
externally adjustable bias control, set with a single
resistor, that allows the user to meet minimum linearity
requirements while reducing current consumption. The
device operates from a +5V single supply and only
requires 93mA of supply current when nominally
biased.

________________________Applications

DVB-T Digital Broadcast Receivers

Digital/Terrestrial TV Tuners

Set-Top Boxes

Cable Modems

Analog TV Tuners

Features

♦ +5V Single-Supply Operation

♦ 44MHz to 878MHz Operating Frequency Range

♦ Guaranteed 7.4dB (min) Input Return Loss Over

Frequency Range

♦ LNA Performance at I

CC

= 93mA (R

BIAS

= 15kΩ)

15dB Gain

2.8dB Noise Figure
+17.5dBm Input IP3
+27dBm Input IP2
+2.7dBm Input 1dB Compression Point

♦ Loop-Out Amplifier Performance at I

CC

= 93mA

(R

BIAS

= 15kΩ)

8.7dB Gain

4.2dB Noise Figure
+17dBm Input IP3
+29dBm Input IP2

-0.5dBm Input 1dB Compression Point

♦ Programmable Linearity vs. Supply Current

MAX2130

Broadband, Two-Output, Low-Noise

Amplifier for TV Tuner Applications

________________________________________________________________ Maxim Integrated Products 1

Typical Operating Circuit

19-1806; Rev 0; 10/00

Ordering Information

*Exposed paddle

Pin Configuration appears at end of data sheet.

PART TEMP. RANGE PIN-PACKAGE

MAX2130EUA -40°C to +85°C 8 µMAX-EP*

EVALUATION KIT

AVAILABLE

For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

V

CC

47pF1000pF10µF

OPTIONAL: DYNAMIC
LINEARITY ADJUSTMENT CIRCUIT

R

DAC

ADJ

V

ADJ

INPUT

1.2V

R
15k

0.1µF

BIAS

V

BIAS

GND

V

CC

CHOKE

MURATA

BLM11A221S

CC

MAX2130

IN

OUT1

GND

GND

OUT2

0.1µF

220pF 1000pF

0.1µF

LOOP-OUT
OUTPUT

LNA
OUTPUT

MAX2130

Broadband, Two-Output, Low-Noise
Amplifier for TV Tuner Applications

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

DC ELECTRICAL CHARACTERISTICS

(VCC= +4.75V to +5.25V, TA= -40°C to +85°C, R

BIAS

= 15kΩ

±1%; no input signals applied. Typical values are at V

CC

= +5V,

T

A

= +25°C, unless otherwise noted.)

AC ELECTRICAL CHARACTERISTICS

(MAX2130 EV kit, VCC= +4.75V to +5.25V, RBIAS = 15kΩ ±1%, fIN= 500MHz, ZO= 75Ω. Typical values are at VCC= +5V,
T

A

= +25°C, unless otherwise noted.) (Note 1)

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.

VCCto GND..............................................................-0.3V to +6V

BIAS, OUT2 to GND .....................................-0.3 to (V

CC

+ 0.3V)

IN Input Power................................................................+15dBm

OUT1 to GND ...........................................................-0.3V to +6V

OUT2 Short-Circuit Duration ......................................Continuous

Continuous Power Dissipation (T

A

= +70°C)

8-pin µMAX-EP (derate 15.4mW/°C above +70°C) ........1.2W

Operating Temperature Range ...........................-40°C to +85°C

Junction Temperature......................................................+150°C

Storage Temperature Range .............................-65°C to +150°C

Lead Temperature (soldering, 10s) .................................+300°C

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

Supply Voltage

V

TA = +25°C 93 104

R

BIAS

= 30kΩ 49

Supply Current

BIAS = unconnected 10

mA

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

LOW-NOISE AMPLIFIER (LNA)

Operating Frequency Range 44 878

MHz

Gain (Note 2)

15

dB

Gain Flatness TA = -40°C to +85°C (Note 2) 0.8 dB

Noise Figure 2.8 3.2 dB

2.7

Input 1dB Compression Point

V

CC

= +3.5V (Note 3) 2.1

dBm

Inp ut Thi r d - Or d er Inter cep t P oi nt (Note 4)

dBm

Input Second-Order Intercept
Point

(Note 5) 27

dBm

IN Return Loss (Notes 2, 6) 7.4 8.6 dB

OUT1 Return Loss fIN = 44MHz to 878M H z 8.7 dB

Maximum Load for Stable
Operation

OUT1 to IN Isolation (Note 2) 18 21 dB

4.75 5.25

13.4

17.5

Any load

16.6

MAX2130

Broadband, Two-Output, Low-Noise

Amplifier for TV Tuner Applications

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX2130 EV kit, VCC= +4.75V to +5.25V, RBIAS

= 15kΩ ±1%, f

IN

= 500MHz, ZO= 75Ω. Typical values are at VCC= +5V,

T

A

= +25°C, unless otherwise noted.) (Note 1)

Note 1: Specifications are guaranteed by design and characterization, except for gain which is production tested.
Note 2: Specifications are guaranteed over the operating frequency range.
Note 3: Operation possible with V

CC

= +3.5V. See Typical Operating Characteristics.

Note 4: Two tones at 500MHz and 506MHz, -20dBm per tone.
Note 5: Two tones at 500MHz and 550MHz, -20dBm per tone.
Note 6: Output load has worst-case 6dB return loss.

PARAMETER CONDITIONS

MIN

TYP

MAX

UNITS

LOOP-OUT AMPLIFIER

Operating Frequency Range 44 878

MHz

Gain (Note 2) 7.1 8.7

dB

Noise Figure 4.2 4.6 dB

-0.5

Input 1dB Compression
Point

V

CC

= +3.5V (Note 3) -3.7

dBm

Input Third-Order Intercept
Point

(Note 4) 17

dBm

Input Second-Order Intercept
Point

(Note 5) 29

dBm

OUT2 Return Loss fIN = 44MHz to 878M H z

dB

Maximum Load for Stable
Operation

OUT2 to IN Isolation (Note 2)

27 dB

OUT2 to OUT1 Isolation (Note 2)

dB

Typical Operating Characteristics

(MAX2130 EV kit, VCC= +5V, R

BIAS

= 15kΩ ±1%, TA = +25°C, unless otherwise noted.)

16.6

Any load

24.5

11.0 12.5

10.2

SUPPLY CURRENT vs. TEMPERATURE

98

97

96

95

94

93

92

91

SUPPLY CURRENT (mA)

90

89

88

-40 10-15 35 60 85
TEMPERATURE (°C)

130

120

MAX2130 toc01

110

100

SUPPLY CURRENT (mA)

SUPPLY CURRENT vs. R

90

80

70

60

50

10.0 15.012.5 17.5 20.0 22.5 25.0
R

(kΩ)

BIAS

BIAS

MAX2130 toc02

17

16

15

14

13

12

GAIN (dB)

11

10

9

8

7

GAIN vs. FREQUENCY

= 10kΩ

R

BIAS

LNA

LOOP-OUT AMPLIFIER

0 400200 600 800 1000

FREQUENCY (MHz)

MAX2130 toc03