MAXIM MAX9995 Technical data

General Description

The MAX9995 dual, high-linearity, downconversion
mixer provides 6.1dB gain, +25.6dBm IIP3, and 9.8dB
NF for WCDMA, TD-SCDMA, LTE, TD-LTE, and
GSM/EDGE base-station applications.

This device integrates baluns in the RF and LO ports, a
dual-input LO selectable switch, an LO buffer, two double­balanced mixers, and a pair of differential IF output ampli­fiers. The MAX9995 requires a typical LO drive of 0dBm
and supply current is guaranteed to be below 380mA.

These devices are available in a compact 36-pin TQFN
package (6mm × 6mm) with an exposed pad. Electrical
performance is guaranteed over the extended tempera­ture range, from T

C

= -40°C to +85°C.

Applications

Features

o 1700MHz to 2700MHz RF Frequency Range

o 1400MHz to 2600MHz LO Frequency Range

o 40MHz to 350MHz IF Frequency Range

o 6.1dB Conversion Gain

o +25.6dBm Input IP3

o 9.8dB Noise Figure

o 66dBc 2RF - 2LO Spurious Rejection at

P

RF

= -10dBm

o Dual Channels Ideal for Diversity Receiver

Applications

o Integrated LO Buffer

o Integrated RF and LO Baluns for Single-Ended

Inputs

o Low -3dBm to +3dBm LO Drive

o Built-In SPDT LO Switch with 50dB LO1 - LO2

Isolation and 50ns Switching Time

o 44dB Channel-to-Channel Isolation

MAX9995

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz

Downconversion Mixer with LO Buffer/Switch

________________________________________________________________

Maxim Integrated Products

1

19-3383; Rev 1; 3/11

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.

EVALUATION KIT

AVAILABLE

cdma2000 is a registered trademark of Telecommunications
Industry Association.

Ordering Information

+Denotes a lead(PB)-free and RoHS-compliant package.

*

TC= Case temperature.

**

EP = Exposed pad.

T = Tape and reel.

Pin Configuration/

Functional Diagram

WCDMA, TD-SCDMA,
and cdma2000

®

3G

Base Stations

LTE and TD-LTE
Base Stations

GSM/EDGE
Base Stations

PHS/PAS Base Stations

Fixed Broadband
Wireless Access

Wireless Local Loop

Private Mobile Radio

Military Systems

TOP VIEW

RFMAIN

TAPMAIN

GND

V

CC

GND

V

CC

GND

TAPDIV

RFDIV

*EXPOSED PAD ON THE BOTTOM OF THE PACKAGE

CC

IFM_SET

V

36

1

2

3

4

5

6

7

8

9

10

CC

V

GND

35

34

11

12

GND

IFD_SET

6mm x 6mm TQFN

IFM+

33

13

IFD+

IFM-

32

14

IFD-

M

IND_EXT

31

MAX9995

EXPOSED

PAD*

15

D

IND_EXT

_M

CC

LO_ADJ

29

17

LO_ADJ_D

N.C.

28

18

N.C.

27

LO2

26

GND

25

GND

24

GND

23

LOSEL

22

GND

21

V

CC

20

GND

19

LO1

V

30

16

CC

V

PART TEMP RANGE PIN-PACKAGE

MAX9995ETX+ T

* = -40°C to +85°C

C

MAX9995ETX+T TC* = -40°C to +85°C

36 TQFN-EP**

36 TQFN-EP**

MAX9995

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz
Downconversion Mixer with LO Buffer/Switch

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

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.

VCC........................................................................-0.3V to +5.5V

LO1, LO2 to GND ...............................................................±0.3V

IFM_, IFD_, IFM_SET, IFD_SET, LOSEL,

LO_ADJ_M, LO_ADJ_D to GND.............-0.3V to (V

CC

+ 0.3V)

RFMAIN, RFDIV, and LO_ Input Power ..........................+20dBm

RFMAIN, RFDIV Current

(RF is DC shorted to GND through balun) ......................50mA

Continuous Power Dissipation (Note 1) ...............................8.8W

Operating Temperature Range (Note 2).....T

C

= -40°C to +85°C

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

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

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

Soldering Temperature (reflow) .......................................+260°C

DC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

, no input RF or LO signals applied, VCC= 4.75V to 5.25V, TC= -40°C to +85°C. Typical values are at V

CC

= 5.0V, TC= +25°C, unless otherwise noted.)

Note 1: Based on junction temperature TJ= TC+ (θJCx VCCx ICC). This formula can be used when the temperature of the exposed

pad is known while the device is soldered down to a PCB. See the

Applications Information

section for details. The junction

temperature must not exceed +150°C.

Note 2: T

C

is the temperature on the exposed pad of the package. TAis the ambient temperature of the device and PCB.

TQFN
Junction-to-Ambient Thermal Resistance (θ

JA

)

(Note 3, 4) ....................................................................38°C/W

Junction-to-Case Thermal Resistance (θJC)

(Note 1, 4) ...................................................................7.4°C/W

PACKAGE THERMAL CHARACTERISTICS

Note 3: Junction temperature TJ= TA+ (θ

J

A

x VCCx ICC). This formula can be used when the ambient temperature of the PCB is

known. The junction temperature must not exceed +150°C.

Note 4: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-

layer board. For detailed information on package thermal considerations, refer to www.maxim-ic.com/thermal-tutorial

.

RECOMMENDED AC OPERATING CONDITIONS

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Supply Voltage V

Supply Current I

LOSEL Input High Voltage V

LOSEL Input Low Voltage V

LOSEL Input Current IIL and I

CC

Total supply current 332 380

VCC (pin 16) 82 90

CC

VCC (pin 30) 97 110

IFM+/IFM- (total of both) 70 90

IFD+/IFD- (total of both) 70 90

IH

IL

IH

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RF Frequency Range f

LO Frequency Range f

IF Frequency Range f

LO Drive Level P

RF

LO

(Note 5) 1700 2700 MHz

(Note 5) 1400 2600 MHz

(Note 5) 40 350 MHz

IF

(Note 5) -3 +3 dBm

LO

4.75 5 5.25 V

mA

2V

0.8 V

-10 +10 µA

MAX9995

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz

Downconversion Mixer with LO Buffer/Switch

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS—fRF= 1700MHz TO 2200MHz

(

Typical Application Circuit,

VCC= 4.75V to 5.25V, RF and LO ports are driven from 50Ω sources, PLO= -3dBm to +3dBm, fRF=

1700MHz to 2200MHz, f

LO

= 1400MHz to 2000MHz, fIF= 200MHz, with fRF> fLO, TC= -40°C to +85°C. Typical values are at VCC=

5.0V, P

LO

= 0dBm, fRF= 1900MHz, fLO= 1700MHz, fIF= 200MHz, and TC= +25°C, unless otherwise noted.) (Notes 6, 7)

Conversion Gain G

Gain Variation from Nominal

Gain Variation with Temperature ±0.75 dB

Noise Figure NF

Noise Figure (with Blocker)

Input 1dB Compression Point P

Input Third-Order Intercept Point IIP3 (Notes 8, 9) 23 25.6 dBm

2RF - 2LO Spur Rejection 2 x 2

3RF - 3LO Spur Rejection 3 x 3

Maximum LO Leakage at RF Port fLO = 1400MHz to 2000MHz -29 dBm

M axi m um 2LO Leakag e at RF P or tf

Maximum LO Leakage at IF Port fLO = 1400MHz to 2000MHz -25 dBm

Minimum RF-to-IF Isolation fRF = 1700MHz to 2200MHz, fIF = 200MHz 37 dB

LO1 - LO2 Isolation P

Minimum Channel-to-Channel
Isolation

LO Switching Time 50% of LOSEL to IF settled to within 2° 50 ns

RF Return Loss 14 dB

LO Return Loss

IF Return Loss

PARAMETER SYMBOL CONDITIONS MIN TYP MAX

fRF = 1710MHz to 1875MHz 6

fRF = 1850MHz to 1910MHz 6.2

fRF = 2110MHz to 2170MHz 6.1

fRF = 1710MHz to 1875MHz ±0.5 ±1

fRF = 1850MHz to 1910MHz ±0.5 ±1

= 2110MHz to 2170MHz ±0.5 ±1

f

RF

fRF = 1710MHz to 1875MHz 9.7

fRF = 1850MHz to 1910MHz 9.8

f

= 2110MHz to 2170MHz 9.9

RF

LO

PRF = -10dBm 66

P

= -5dBm 61

RF

PRF = -10dBm 70 88

P

= -5dBm 60 78

RF

= 0dBm (Note 10) 40 50.5 dB

LO2

40 44 dB

22 dB

21 dB

1dB

C

= 5.0V,

V

CC

= +25°C,

T

C

P

= 0dBm,

LO

= -10dBm

P

RF

(Note 8)

No blockers
present

8dBm blocker tone applied to RF port at
2000MHz, fRF = 1900MHz, fLO = 1710MHz, P
= -3dBm

(Note 8) 9.5 12.6 dBm

f

= 1900MHz,

RF

f

= 1700MHz,

LO

= 1800MHz (Note 8)

f

SPUR

f

= 1900MHz,

RF

f

= 1700MHz,

LO

= 1766.7MHz (Note 8)

f

SPUR

= 1400MHz to 2000MHz -17 dBm

LO

= 0dBm, P

LO1

= -10dBm, RFMAIN (RFDIV)

P

RF

power measured at IFDIV (IFMAIN),
relative to IFMAIN (IFDIV),
all unused ports terminated at 50Ω

LO port selected 18

LO port unselected 21

LO driven at 0dBm, RF terminated into 50Ω
(Note 11)

UNIT

dB

dB

dB

dBc

dBc

dB

Typical Operating Characteristics

(

Typical Application Circuit

, VCC= 5.0V, PRF= -5dBm, PLO= 0dBm, LO is low-side injected for a 200MHz IF, TC= +25°C.)

MAX9995

Dual, SiGe, High-Linearity, 1700MHz to 2700MHz
Downconversion Mixer with LO Buffer/Switch

4 _______________________________________________________________________________________

Note 5: Operation outside this frequency band is possible but has not been characterized. See the

Typical Operating Characteristics

.

Note 6: Guaranteed by design and characterization.
Note 7: All limits reflect losses of external components. Output measurements taken at IF outputs of

Typical Application Circuit

.

Note 8: Production tested.
Note 9: Two tones 3MHz spacing, -5dBm per tone at RF port.
Note 10: Measured at IF port at IF frequency. f

LO1

and f

LO2

are offset by 1MHz.

Note 11: IF return loss can be optimized by external matching components.

AC ELECTRICAL CHARACTERISTICS—fRF= 2540MHz

(

Typical Application Circuit

, RF and LO ports are driven from 50Ω sources, fRF> fLO, VCC= 5.0V, PRF= -5dBm, PLO= 0dBm, fRF=

2540MHz, f

LO

= 2400MHz, fIF= 140MHz, TC= +25°C, unless otherwise noted.) (Note 7)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Conversion Gain G

Input Third-Order Intercept Point IIP3

2RF - 2LO Spurious Response 2 x 2

3RF - 3LO Spurious Response 3 x 3

LO Leakage at IF Port -45 dBm

RF-to-IF Isolation 49 dB

Channel-to-Channel Isolation

C

Two tones: f

= -5dBm/tone

P

RF

= 2540MHz, f

RF1

= 2541MHz,

RF2

5.2 dB

24.6 dBm

PRF = -10dBm 58

P

= -5dBm 63

RF

PRF = -10dBm 72

= -5dBm 82

P

RF

= -10dBm, RFMAIN (RFDIV) power

P

RF

measured at IFDIV (IFMAIN), relative to IFMAIN

48 dB

(IFDIV), all unused ports terminated at 50Ω

dBc

dBc

CONVERSION GAIN vs. RF FREQUENCY

8.0

7.5

7.0

6.5

6.0

5.5

5.0

4.5

CONVERSION GAIN (dB)

4.0

3.5

3.0
1700 2200

TC = -20°C

TC = +85°C

RF FREQUENCY (MHz)

CONVERSION GAIN vs. RF FREQUENCY

6.5

6.4

MAX9995 toc02

6.3

6.2

6.1

6.0

5.9

5.8

CONVERSION GAIN (dB)

5.7

5.6

5.5
1700 2200

TC = +25°C

2100200019001800

6.5

6.4

MAX9995 toc01

6.3

6.2

6.1

6.0

5.9

5.8

CONVERSION GAIN (dB)

5.7

5.6

5.5

PLO = -3dBm to +3dBm

1700 2200

RF FREQUENCY (MHz)

2100200019001800

CONVERSION GAIN vs. RF FREQUENCY

VCC = 4.75V

VCC = 5.0V

VCC = 5.25V

2100200019001800

RF FREQUENCY (MHz)

MAX9995 toc03