Rainbow Electronics MAX19997A User Manual

General Description

The MAX19997A dual downconversion mixer is a versatile, highly integrated diversity downconverter that provides high linearity and low noise figure for a multitude of 1800MHz to 2900MHz base-station applications. The MAX19997A fully supports both low- and high-side LO injection architectures for the 2300MHz to 2900MHz WiMAX™, LTE, WCS, and MMDS bands, providing

8.7dB gain, +24dBm input IP3, and 10.3dB NF in the low-side configuration, and 8.7dB gain, +24dBm input IP3, and 10.4dB NF in the high-side configuration. Highside LO injection architectures can be further extended down to 1800MHz with the addition of one tuning element (a shunt inductor) on each RF port.

The device integrates baluns in the RF and LO ports, an LO buffer, two double-balanced mixers, and a pair of differential IF output amplifiers. The MAX19997A requires a typical LO drive of 0dBm and a supply current guaranteed below 420mA to achieve the targeted linearity performance.

The MAX19997A is available in a compact 6mm x 6mm, 36-pin thin QFN lead-free package with an exposed pad. Electrical performance is guaranteed over the extended temperature range, from TC= -40°C to +85°C.

Applications

2.3GHz WCS Base Stations

2.5GHz WiMAX and LTE Base Stations

2.7GHz MMDS Base Stations

UMTS/WCDMA and cdma2000

3G Base

Stations

PCS1900 and EDGE Base Stations

PHS/PAS Base Stations

Fixed Broadband Wireless Access

Wireless Local Loop

Private Mobile Radios

Military Systems

Features

o 1800MHz to 2900MHz RF Frequency Range

o 1950MHz to 3400MHz LO Frequency Range

o 50MHz to 500MHz IF Frequency Range

o Supports Both Low-Side and High-Side LO

Injection

o 8.7dB Conversion Gain

o +24dBm Input IP3

o 10.3dB Noise Figure

o +11.3dBm Input 1dB Compression Point

o 70dBc Typical 2 x 2 Spurious Rejection at

= -10dBm

o Dual Channels Ideal for Diversity Receiver

Applications

o Integrated LO Buffer

o Integrated LO and RF Baluns for Single-Ended

Inputs

o Low -3dBm to +3dBm LO Drive

o Pin Compatible with the MAX19999 3000MHz to

4000MHz Mixer

o Pin Similar to the MAX9995/MAX9995A and

MAX19995/MAX19995A 1700MHz to 2200MHz Mixers and the MAX9985/MAX9985A and MAX19985/MAX19985A 700MHz to 1000MHz Mixers

o 42dB Channel-to-Channel Isolation

o Single +5.0V or +3.3V Supply

o External Current-Setting Resistors Provide Option

for Operating Device in Reduced-Power/ReducedPerformance Mode

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

________________________________________________________________

Maxim Integrated Products

Ordering Information

19-4288; Rev 0; 10/08

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.

PART TEMP RANGE PIN-PACKAGE

MAX19997AETX+ -40°C to +85°C

36 Thin QFN-EP*

MAX19997AETX+T

-40°C to +85°C

36 Thin QFN-EP*

Denotes a lead-free/RoHS-compliant package. *EP = Exposed pad. T = Tape and reel.

Pin Configuration/Functional Block Diagram appears at end of data sheet.

WiMAX is a trademark of WiMAX Forum.

cdma2000 is a registered trademark of Telecommunications Industry Association.

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

2 _______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

+5.0V SUPPLY DC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

optimized for the standard RF band (see Table 1), no input RF or LO signals applied, VCC= +4.75V to

+5.25V, T

= -40°C to +85°C. Typical values are at VCC= +5.0V, TC= +25°C, unless otherwise noted. R1, R4 = 750Ω, R2, R5 =

698Ω.)

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 +5.5V

RF_, LO to GND.....................................................-0.3V to +0.3V

IFM_, IFD_, IFM_SET, IFD_SET, LO_ADJ_M,

LO_ADJ_ to GND ...................................-0.3V to (V

+ 0.3V)

RF_, LO Input Power ......................................................+15dBm

RF_, LO Current (RF and LO is DC

shorted to GND through balun)................................... ...50mA

Continuous Power Dissipation (Note 1) ..............................8.7W

(Notes 2, 3)..............................................................+38°C/W

(Notes 1, 3)...............................................................7.4°C/W

Operating Case Temperature Range

(Note 4) ...................................................T

= -40°C to +85°C

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

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

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

+3.3V SUPPLY DC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

optimized for the standard RF band (see Table 1), no input RF or LO signals applied, VCC= +3.0V to

+3.6V, T

= -40°C to +85°C. Typical values are at VCC= +3.3V, TC= +25°C, unless otherwise noted. R1, R4 = 1.1kΩ, R2, R5 =

845Ω.)

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: Junction temperature T

= TA+ (θJCx 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 3: 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

Note 4: T

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

Supply Voltage V

Supply Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Total supply current 388 420 mA

Supply Voltage V

Supply Current I

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Total supply current, VCC = +3.3V 279 310 mA

4.75 5.00 5.25 V

3.0 3.3 3.6 V

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

_______________________________________________________________________________________ 3

RECOMMENDED AC OPERATING CONDITIONS

+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

optimized for the standard RF band (see Table 1),VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 2650MHz to 3250MHz, fIF= 350MHz,

< fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2950MHz,

= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RF Frequency Without External Tuning

RF Frequency with External Tuning

LO Frequency f

IF Frequency f

LO Drive Level P

(Note 5) 2400 2900 MHz

S ee Tab l e 2 for an outl i ne of tuni ng el em ents op ti m i zed for 1950M H z op er ati on; op ti m i zati on at other fr eq uenci es w i thi n the 1800M H z to 2400M H z r ang e can b e achi eved w i th different component values; contact the factory for details

(Notes 5, 6) 1950 3400 MHz

Using Mini-Circuits TC4-1W-17 4:1 transformer as defined in the Typical Application Circuit, IF matching components affect the IF frequency range (Notes 5, 6)

Using alternative Mini-Circuits TC4-1W-7A 4:1 transformer, IF matching components affect the IF frequency range (Notes 5, 6)

1800 2400 MHz

100 500

MHz

50 250

-3 +3 dBm

Conversion Gain G

Conversion Gain Flatness

Gain Variation Over Temperature TC

Input Compression Point IP

Third-Order Input Intercept Point IIP3

Thi r d - O r d er Inp ut Inter cep t P oi nt V ar i ati on Over Tem p er atur e

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

1dB

fRF = 2400MHz to 2900MHz, T

= +25°C (Notes 8, 9, 10)

fRF = 2305MHz to 2360MHz 0.15

fRF = 2500MHz to 2570MHz 0.15

fRF = 2570MHz to 2620MHz 0.1

fRF = 2500MHz to 2690MHz 0.15

= 2700MHz to 2900MHz 0.15

fRF = 2300MHz to 2900MHz,

= -40°C to +85°C

(Notes 8, 9, 11) 9.6 11.3 dBm

- f

RF1

(Notes 8, 9)

RF1

= 1MHz, PRF = -5dBm per tone

RF2

= 2600MHz, f

= -5dBm per tone, TC = +25C

- f

= 1MHz, TC = -40°C to +85°C ±0.3 dBm

RF2

RF1

- f

RF2

= 1MHz,

8.1 8.7 9.3 dB

-0.01 dB/°C

22.0 24

22.5 24

dBm

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

4 _______________________________________________________________________________________

+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued)

(

Typical Application Circuit

optimized for the standard RF band (see Table 1),VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 2650MHz to 3250MHz, fIF= 350MHz,

< fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2950MHz,

fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

Noise Figure NF

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Single sideband, no blockers present f

= 2400M H z to 2900M H z ( N ote 6, 8, 10)

R F

SSB

Single sideband, no blockers present, f

= 2400M H z to 2900M H z , TC = +25°C

R F

(Note 6, 8, 10)

10.4 12.5

10.4 11.4

Noise Figure Temperature Coefficient

Noise Figure Under Blocking Conditions

2LO-2RF Spur 2 x 2

3LO-3RF Spur 3 x 3

RF Input Return Loss

LO Input Return Loss

IF Output Impedance Z

Single sideband, no blockers present,

= -40°C to +85°C

BLOCKER

0dBm, V

fRF = 2600MHz, fLO = 2950MHz, P

(Note 8)

(Notes 8, 9)

fRF = 2600MHz, fLO = 2950MHz, P

LO on and IF terminated into a matched impedance

RF and IF terminated into a matched impedance

Nominal differential impedance at the IC’s IF outputs

= 2412MHz, P

= 2600MHz, f

= + 5.0V , TC = + 25°C ( Notes 8, 12)

C C

= -10dBm, f

= 2600MHz, fLO = 2950MHz,

= -5dBm, f

= -10dBm, f

= +25°C (Note 8)

= 2600MHz, f

= -5dBm, f

= +25°C (Notes 8, 9)

SPUR

BLOCKER

= 2950MHz, PLO =

= fLO - 175MHz

- 175MHz

= f

= 2950MHz,

- 116.67MHz,

= f

= 8dBm,

- 116.67MHz,

0.018 dB/°C

22.5 25 dB

62 69

dBc

57 64

73 84

dBc

63 74

14 dB

13 dB

200 Ω

RF terminated into 50Ω, LO driven by 50Ω

IF Output Return Loss

source, IF transformed to 50Ω using external components shown in the Typical

Application Circuit

21 dB

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

_______________________________________________________________________________________ 5

+5.0V SUPPLY, HIGH-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued)

(

Typical Application Circuit

optimized for the standard RF band (see Table 1),VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 2650MHz to 3250MHz, fIF= 350MHz,

< fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2950MHz,

fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

+5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

optimized for the standard RF band (see Table 1), VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 1950MHz to 2550MHz, fIF= 350MHz, fRF> fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2250MHz, fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

RF-to-IF Isolation 25 dB

LO Leakage at RF Port (Notes 8, 9) -28 dBm

2LO Leakage at RF Port -33 dBm

LO Leakage at IF Port -18.5 dBm

Channel Isolation

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

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

38.5 43 dB

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Conversion Gain G

Conversion Gain Flatness

Gain Variation Over Temperature TC

Input Compression Point IP

Third-Order Input Intercept Point IIP3

1dB

fRF = 2400MHz to 2900MHz, T

= +25°C (Notes 8, 9, 10)

fRF = 2305MHz to 2360MHz 0.2

fRF = 2500MHz to 2570MHz 0.15

fRF = 2570MHz to 2620MHz 0.2

fRF = 2500MHz to 2690MHz 0.25

= 2700MHz to 2900MHz 0.25

fRF = 2300MHz to 2900MHz, TC = -40°C to +85°C

(Notes 6, 8, 11) 9.6 11.3 dBm

- f

RF1

(Notes 8, 9)

= 1MHz, PRF = -5dBm per tone

RF2

= 2600MHz, f

= -5dBm per tone, TC = +25°C

RF1

- f

= 1MHz,

RF2

8.1 8.7 9.3 dB

-0.01 dB/°C

21.6 23 dBm

22 23.8 dBm

Thi r d - O r d er Inp ut Inter cep t P oi nt V ar i ati on Over Tem p er atur e

RF1

- f

= 1MHz, TC = -40°C to +85°C ±0.3 dBm

RF2

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

6 _______________________________________________________________________________________

+5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued)

(

Typical Application Circuit

optimized for the standard RF band (see Table 1), VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 1950MHz to 2550MHz, fIF= 350MHz, f

> fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2250MHz,

fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Noise Figure NF

Single sideband, no blockers present f

= 2400MHz to 2900MHz (Notes 6, 8)

SSB

Single sideband, no blockers present, f

= 2400MHz to 2900MHz, TC = +25°C

(Notes 6, 8)

10.3 13.0

10.3 11.3

Noise Figure Temperature Coefficient

Noise Figure Under Blocking Conditions

2RF-2LO Spur 2 x 2

3RF-3LO Spur 3 x 3

RF Input Return Loss

LO Input Return Loss

IF Output Impedance Z

Single sideband, no blockers present,

= -40°C to +85°C

BLOCKER

(Notes 6, 8, 12)

fRF = 2600MHz, fLO = 2250MHz, P

LO on and IF terminated into a matched impedance

RF and IF terminated into a matched impedance

Nominal differential impedance at the IC’s IF outputs

= 2793MHz, P

= 2600MHz, fLO = 2250MHz,

= 0dBm, V cc = + 5.0V , TC = +25°C

= -10dBm, f

= +25°C (Note 8)

= 2600MHz, fLO = 2250MHz,

= -5dBm, f

= +25°C (Notes 8, 9)

= -10dBm, f

= +25°C (Note 8)

= 2600MHz, fLO = 2250MHz,

= -5dBm, f

= +25°C (Notes 8, 9)

SPUR

BLOCKER

= fLO + 175MHz,

= fLO + 116.67MHz,

0.018 dB/°C

= 8dBm,

22 25 dB

62 67

dBc

57 62

78 83

dBc

68 73

16 dB

11.5 dB

200 Ω

RF terminated into 50Ω, LO driven by 50Ω

IF Output Return Loss

source, IF transformed to 50Ω using external components shown in the Typical

Application Circuit

20 dB

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

_______________________________________________________________________________________ 7

+3.3V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS

(

Typical Application Circuit

optimized for the standard RF band (see Table 1). Typical values are at VCC= +3.3V, PRF= -5dBm,

= 0dBm, fRF= 2600MHz, fLO= 2250MHz, fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

+5.0V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued)

(

Typical Application Circuit

optimized for the standard RF band (see Table 1), VCC= +4.75V to +5.25V, RF and LO ports are driven

from 50Ω sources, P

= -3dBm to +3dBm, PRF= -5dBm, fRF= 2300MHz to 2900MHz, fLO= 1950MHz to 2550MHz, fIF= 350MHz, f

> fLO, TC= -40°C to +85°C. Typical values are at VCC= +5.0V, PRF= -5dBm, PLO= 0dBm, fRF= 2600MHz, fLO= 2250MHz,

fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

RF-to-IF Isolation 23.5 dB

LO Leakage at RF Port (Notes 8, 9) -31 -24 dBm

2LO Leakage at RF Port -27 dBm

LO Leakage at IF Port -9.6 dBm

Channel Isolation

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

RFMAIN (RFDIV) converted power measured at IFDIV (IFMAIN) relative to IFMAIN (IFDIV), all unused ports terminated to 50Ω (Notes 8, 9)

38.5 42 dB

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

Conversion Gain G

Conversion Gain Flatness

Gain Variation Over Temperature TC

Input Compression Point IP

Thi r d - O r d er Inp ut Inter cep t P oi nt IIP3 f

Third-Order Input Intercept Variation Over Temperature

Noise Figure NF

Noise Figure Temperature Coefficient

(Note 9) 8.5 dB

fRF = 2305MHz to 2360MHz 0.2

fRF = 2500MHz to 2570MHz 0.15

fRF = 2570MHz to 2620MHz 0.15

fRF = 2500MHz to 2690MHz 0.25

= 2700MHz to 2900MHz 0.15

1dB

SSB

fRF = 2300MHz to 2900MHz, T

= -40°C to +85°C

- f

RF1

Single sideband, no blockers present 9.7 dB

Single sideband, no blockers present, T

= 1MHz, PRF = -5dBm per tone 19.7 dBm

RF2

- f

= 1MHz, TC = -40°C to +85°C ±0.5 dBm

RF2

= -40°C to +85°C

-0.01 dB/°C

7.7 dBm

0.018 dB/°C

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

8 _______________________________________________________________________________________

+3.3V SUPPLY, LOW-SIDE LO INJECTION AC ELECTRICAL CHARACTERISTICS (continued)

(

Typical Application Circuit

optimized for the standard RF band (see Table 1). Typical values are at VCC= +3.3V, PRF= -5dBm,

= 0dBm, fRF= 2600MHz, fLO= 2250MHz, fIF= 350MHz, TC= +25°C, unless otherwise noted.) (Note 7)

Note 5: Operation outside this range is possible, but with degraded performance of some parameters. See the

Typical Operating

Characteristics

Note 6: Not production tested. Note 7: All limits reflect losses of external components, including a 0.8dB loss at f

= 350MHz due to the 4:1 impedance trans-

former. Output measurements taken at the IF outputs of

Typical Application Circuit

Note 8: Guaranteed by design and characterization. Note 9: 100% production tested for functional performance. Note 10: RF frequencies below 2400MHz require external RF tuning similar to components listed in Table 2. Note 11: Maximum reliable continuous input power applied to the RF or IF port of this device is +12dBm from a 50Ω source. Note 12: Measured with external LO source noise filtered so the noise floor is -174dBm/Hz. This specification reflects the effects of

all SNR degradations in the mixer, including the LO noise as defined in Application Note 2021:

Specifications and

Measurement of Local Oscillator Noise in Integrated Circuit Base Station Mixers

2RF-2LO Spur 2 x 2

3RF-3LO Spur 3 x 3

RF Input Return Loss

LO Input Return Loss

IF Output Impedance Z

IF Output Return Loss

RF-to-IF Isolation 25 dB

LO Leakage at RF Port -36 dBm

2LO Leakage at RF Port -31 dBm

LO Leakage at IF Port -13.5 dBm

Channel Isolation

PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS

PRF = -10dBm, f

= -5dBm, f

PRF = -10dBm, f

= -5dBm, f

LO on and IF terminated into a matched impedance

RF and IF terminated into a matched impedance

Nominal differential impedance at the IC’s

IF outputs

RF terminated into 50Ω, LO driven by 50Ω source, IF transformed to 50Ω using external components shown in the Typical

Application Circuit

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

= fLO + 175MHz 74

SPUR

= fLO + 175MHz 69

SPUR

= fLO + 116.67MHz 74

SPUR

= fLO + 116.67MHz 64

SPUR

16 dB

11 dB

200 Ω

26 dB

42 dB

dBc

Typical Operating Characteristics

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

_______________________________________________________________________________________

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

CONVERSION GAIN (dB)

TC = +85°C

2200 3000

TC = -30°C

TC = +25°C

280026002400

RF FREQUENCY (MHz)

INPUT IP3 vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

TC = +25°C

PRF = -5dBm/TONE

TC = +85°C

MAX19997A toc01

CONVERSION GAIN (dB)

MAX19997A toc04

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

2200 3000

INPUT IP3 vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

PRF = -5dBm/TONE

MAX19997A toc02

CONVERSION GAIN (dB)

MAX19997A toc05

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

2200 3000

VCC = 4.75V, 5.0V, 5.25V

280026002400

RF FREQUENCY (MHz)

INPUT IP3 vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PRF = -5dBm/TONE

VCC = 5.25V

VCC = 5.0V

MAX19997A toc03

MAX19997A toc06

INPUT IP3 (dBm)

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

NOISE FIGURE (dB)

TC = +25°C

RF FREQUENCY (MHz)

TC = -30°C

TC = +85°C

TC = -30°C

2800260024002200 3000

MAX19997A toc07

INPUT IP3 (dBm)

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

NOISE FIGURE (dB)

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

2800260024002200 3000

MAX19997A toc08

INPUT IP3 (dBm)

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

NOISE FIGURE (dB)

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

VCC = 4.75V

2800260024002200 3000

MAX19997A toc09

2800260024002200 3000

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

10 ______________________________________________________________________________________

2LO-2RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

2LO-2RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PRF = -5dBm

2LO-2RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PRF = -5dBm

TC = +85°C

2LO-2RF RESPONSE (dBc)

TC = -30°C

RF FREQUENCY (MHz)

3LO-3RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

TC = -30°C

3LO-3RF RESPONSE (dBc)

RF FREQUENCY (MHz)

TC = +25°C

TC = +25°C, +85°C

2800260024002200 3000

PRF = -5dBm

2800260024002200 3000

MAX19997A toc10

2LO-2RF RESPONSE (dBc)

MAX19997A toc13

3LO-3RF RESPONSE (dBc)

PLO = +3dBm

PLO = 0dBm

PLO = -3dBm

2800260024002200 3000

RF FREQUENCY (MHz)

3LO-3RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PRF = -5dBm

PLO = -3dBm, 0dBm, +3dBm

2800260024002200 3000

RF FREQUENCY (MHz)

MAX19997A toc11

2LO-2RF RESPONSE (dBc)

MAX19997A toc14

3LO-3RF RESPONSE (dBc)

MAX19997A toc12

VCC = 4.75V, 5.0V, 5.25V

2800260024002200 3000

RF FREQUENCY (MHz)

3LO-3RF RESPONSE vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PRF = -5dBm

MAX19997A toc15

VCC = 4.75V, 5.0V, 5.25V

2800260024002200 3000

RF FREQUENCY (MHz)

INPUT P

1dB

(LO > RF, STANDARD RF BAND)

VCC = 5.25V

VCC = 4.75V

RF FREQUENCY (MHz)

(dBm)

1dB

INPUT P

vs. RF FREQUENCY

1dB

(LO > RF, STANDARD RF BAND)

TC = +85°C

TC = -30°C

TC = +25°C

2800260024002200 3000

RF FREQUENCY (MHz)

MAX19997A toc16

(dBm)

1dB

INPUT P

vs. RF FREQUENCY

1dB

(LO > RF, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

2800260024002200 3000

RF FREQUENCY (MHz)

MAX19997A toc17

(dBm)

1dB

INPUT P

vs. RF FREQUENCY

VCC = 5.0V

MAX19997A toc18

2800260024002200 3000

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

CHANNEL ISOLATION (dB)

TC = -30°C, +25°C, +85°C

2800260024002200 3000

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

(LO > RF, STANDARD RF BAND)

-10 TC = -30°C

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

CHANNEL ISOLATION (dB)

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

(LO > RF, STANDARD RF BAND)

-10

MAX19997A toc19

CHANNEL ISOLATION (dB)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

MAX19997A toc22

-10

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

2800260024002200 3000

RF FREQUENCY (MHz)

(LO > RF, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

MAX19997A toc20

MAX19997A toc23

MAX19997A toc21

2800260024002200 3000

MAX19997A toc24

-20

-30

LO LEAKAGE AT IF PORT (dBm)

-40

TC = +25°C, +85°C

LO FREQUENCY (MHz)

RF-TO-IF ISOLATION vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

TC = +85°C

RF-TO-IF ISOLATION (dB)

TC = -30°C

RF FREQUENCY (MHz)

TC = +25°C

3150295027502550 3350

2800260024002200 3000

-20

-30

LO LEAKAGE AT IF PORT (dBm)

-40

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX19997A toc25

RF-TO-IF ISOLATION (dB)

3150295027502550 3350

LO FREQUENCY (MHz)

(LO > RF, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

2800260024002200 3000

RF FREQUENCY (MHz)

-20

-30

LO LEAKAGE AT IF PORT (dBm)

-40

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX19997A toc26

RF-TO-IF ISOLATION (dB)

VCC = 4.75V, 5.0V, 5.25V

3150295027502550 3350

LO FREQUENCY (MHz)

(LO > RF, STANDARD RF BAND)

VCC = 4.75V, 5.0V, 5.25V

2800260024002200 3000

RF FREQUENCY (MHz)

MAX19997A toc27

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

12 ______________________________________________________________________________________

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

TC = -30°C, +25°C, +85°C

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

LO FREQUENCY (MHz)

2LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

-20

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

MAX19997A toc28

-20

-30

= -3dBm, 0dBm, +3dBm

-40

LO LEAKAGE AT RF PORT (dBm)

-50

3180296027402520

2300 3400

LO FREQUENCY (MHz)

3180296027402520

2LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

MAX19997A toc31

-20

= -3dBm, 0dBm, +3dBm

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50

3180296027402520

2300 3400

LO FREQUENCY (MHz)

3180296027402520

MAX19997A toc29

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

2LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

-10

MAX19997A toc32

-20

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

VCC = 4.75V, 5.0V, 5.25V

3180296027402520

LO FREQUENCY (MHz)

VCC = 4.75V, 5.0V, 5.25V

3180296027402520

LO FREQUENCY (MHz)

MAX19997A toc30

MAX19997A toc33

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

RF PORT RETURN LOSS vs. RF FREQUENCY

(LO > RF, STANDARD RF BAND)

RF PORT RETURN LOSS (dB)

RF FREQUENCY (MHz)

PLO = -3dBm, 0dBm, +3dBm

fIF = 350MHz

2800260024002200 3000

LO PORT RETURN LOSS vs. LO FREQUENCY

(LO > RF, STANDARD RF BAND)

PLO = +3dBm

IF PORT RETURN LOSS vs. IF FREQUENCY

MAX19997A toc34

IF PORT RETURN LOSS (dB)

50 500

(LO > RF, STANDARD RF BAND)

fLO = 2600MHz

VCC = 4.75V, 5.0V, 5.25V

410320230140

IF FREQUENCY (MHz)

SUPPLY CURRENT vs. TEMPERATURE (TC)

(LO > RF, STANDARD RF BAND)

400

390

MAX19997A toc37

380

MAX19997A toc35

VCC = 5.25V

IF PORT RETURN LOSS vs. IF FREQUENCY

(LO > RF, STANDARD RF BAND)

IF PORT RETURN LOSS (dB)

50 500

fLO = 2600MHz

IF FREQUENCY (MHz)

MAX19997A toc38

fLO = 2350MHz

MAX19997A toc36

fLO = 2950MHz

410320230140

LO PORT RETURN LOSS (dB)

PLO = -3dBm

1900 3400

LO FREQUENCY (MHz)

PLO = 0dBm

31502900265024002150

370

SUPPLY CURRENT (mA)

360

350

VCC = 4.75V

-35 85 TEMPERATURE (°C)

VCC = 5.0V

6545255-15

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, extended RF band (see Table 2), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

14 ______________________________________________________________________________________

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CONVERSION GAIN vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CONVERSION GAIN (dB)

INPUT IP3 (dBm)

TC = +85°C

1800 2300

RF FREQUENCY (MHz)

INPUT IP3 vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

TC = +85°C

TC = +25°C

TC = -30°C

1800 2300

RF FREQUENCY (MHz)

TC = -30°C

TC = +25°C

2200210020001900

PRF = -5dBm/TONE

2200210020001900

MAX19997A toc39

CONVERSION GAIN (dB)

MAX19997A toc42

INPUT IP3 (dBm)

PLO = -3dBm, 0dBm, +3dBm

1800 2300

RF FREQUENCY (MHz)

2200210020001900

INPUT IP3 vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

PRF = -5dBm/TONE

PLO = -3dBm, 0dBm, +3dBm

1800 2300

RF FREQUENCY (MHz)

2200210020001900

MAX19997A toc40

CONVERSION GAIN (dB)

MAX19997A toc43

INPUT IP3 (dBm)

VCC = 4.75V, 5.0V, 5.25V

1800 2300

RF FREQUENCY (MHz)

2200210020001900

INPUT IP3 vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

PRF = -5dBm/TONE

VCC = 5.25V

VCC = 5.0V

VCC = 4.75V

1800 2300

RF FREQUENCY (MHz)

2200210020001900

MAX19997A toc41

MAX19997A toc44

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

NOISE FIGURE (dB)

1800 2300

TC = +85°C

TC = +25°C

TC = -30°C

RF FREQUENCY (MHz)

MAX19997A toc45

2200210020001900

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

NOISE FIGURE (dB)

1800 2300

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

MAX19997A toc46

NOISE FIGURE (dB)

2200210020001900

1800 2300

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

MAX19997A toc47

2200210020001900

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, extended RF band (see Table 2), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

2LO-2RF RESPONSE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

TC = +85°C

2LO-2RF RESPONSE (dBc)

TC = -30°C

1800 2300

RF FREQUENCY (MHz)

PRF = -5dBm

TC = +25°C

2200210020001900

3LO-3RF RESPONSE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

TC = -30°C

PRF = -5dBm

2LO-2RF RESPONSE vs. RF FREQUENCY

MAX19997A toc48

2LO-2RF RESPONSE (dBc)

1800 2300

3LO-3RF RESPONSE vs. RF FREQUENCY

MAX19997A toc51

(LO > RF, EXTENDED RF BAND)

PRF = -5dBm

MAX19997A toc49

PLO = -3dBm, 0dBm, +3dBm

2200210020001900

RF FREQUENCY (MHz)

(LO > RF, EXTENDED RF BAND)

PRF = -5dBm

MAX19997A toc52

2LO-2RF RESPONSE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

2LO-2RF RESPONSE (dBc)

1800 2300

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

3LO-3RF RESPONSE vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

PRF = -5dBm

MAX19997A toc50

2200210020001900

PRF = -5dBm

MAX19997A toc53

3LO-3RF RESPONSE (dBc)

TC = +25°C, +85°C

1800 2300

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

(LO > RF, EXTENDED RF BAND)

(dBm)

1dB

INPUT P

1800 2300

TC = +85°C

TC = -30°C

RF FREQUENCY (MHz)

TC = +25°C

3LO-3RF RESPONSE (dBc)

2200210020001900

1800 2300

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

2200210020001900

(LO > RF, EXTENDED RF BAND)

MAX19997A toc54

(dBm)

1dB

INPUT P

2200210020001900

1800 2300

PLO = -3dBm, 0dBm, +3dBm

2200210020001900

RF FREQUENCY (MHz)

3LO-3RF RESPONSE (dBc)

1800 2300

MAX19997A toc55

(dBm)

1dB

INPUT P

1800 2300

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

(LO > RF, EXTENDED RF BAND)

VCC = 5.0V

VCC = 4.75V

RF FREQUENCY (MHz)

VCC = 5.25V

2200210020001900

MAX19997A toc56

2200210020001900

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, extended RF band (see Table 2), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

16 ______________________________________________________________________________________

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CHANNEL ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

CHANNEL ISOLATION (dB)

1800 2300

TC = -30°C, +25°C, +85°C

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

(LO > RF, EXTENDED RF BAND)

-10

-20

LO LEAKAGE AT IF PORT (dBm)

-30 2150 2650

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

MAX19997A toc57

CHANNEL ISOLATION (dB)

2200210020001900

1800 2300

PLO = -3dBm, 0dBm, +3dBm

2200210020001900

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

(LO > RF, EXTENDED RF BAND)

MAX19997A toc60

-10

-20

LO LEAKAGE AT IF PORT (dBm)

2550245023502250

-30

PLO = -3dBm, 0dBm, +3dBm

2150 2650

LO FREQUENCY (MHz)

2550245023502250

MAX19997A toc58

CHANNEL ISOLATION (dB)

1800 2300

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

MAX19997A toc61

-10

-20

LO LEAKAGE AT IF PORT (dBm)

-30 2150 2650

MAX19997A toc59

VCC = 4.75V, 5.0V, 5.25V

2200210020001900

RF FREQUENCY (MHz)

(LO > RF, EXTENDED RF BAND)

MAX19997A toc62

VCC = 4.75V, 5.0V, 5.25V

2550245023502250

LO FREQUENCY (MHz)

RF-TO-IF ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

TC = +85°C

RF-TO-IF ISOLATION (dB)

TC = +25°C

1800 2300

RF FREQUENCY (MHz)

TC = -30°C

RF-TO-IF ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

MAX19997A toc63

RF-TO-IF ISOLATION (dB)

2200210020001900

1800 2300

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

MAX19997A toc64

2200210020001900

RF-TO-IF ISOLATION vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

VCC = 4.75V, 5.0V, 5.25V

RF-TO-IF ISOLATION (dB)

1800 2300

RF FREQUENCY (MHz)

MAX19997A toc65

2200210020001900

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, extended RF band (see Table 2), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

LO LEAKAGE AT RF PORT vs. LO FREQUENC

(LO > RF, EXTENDED RF BAND)

-10

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

TC = -30°C, +25°C, +85°C

3180296027402520

LO FREQUENCY (MHz)

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(LO > RF, EXTENDED RF BAND)

-10

-20

TC = -30°C, +25°C, +85°C

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, EXTENDED RF BAND)

-10

MAX19997A toc66

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 2300

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(LO > RF, EXTENDED RF BAND)

-10

MAX19997A toc69

-20

PLO = -3dBm, 0dBm, +3dBm

LO FREQUENCY (MHz)

PLO = -3dBm, 0dBm, +3dBm

MAX19997A toc67

3180296027402520

3400

MAX19997A toc70

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(LO > RF, EXTENDED RF BAND)

-10

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 2300

VCC = 4.75V, 5.0V, 5.25V

LO FREQUENCY (MHz)

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(LO > RF, EXTENDED RF BAND)

-10

-20

VCC = 4.75V, 5.0V, 5.25V

MAX19997A toc68

3180296027402520

3400

MAX19997A toc71

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

LO FREQUENCY (MHz)

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

3180296027402520

-50 2300 3400

LO FREQUENCY (MHz)

3180296027402520

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 2300 3400

LO FREQUENCY (MHz)

3180296027402520

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, extended RF band (see Table 2), VCC= +5.0V, LO is high-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

18 ______________________________________________________________________________________

)

RF PORT RETURN LOSS vs. RF FREQUENCY

(LO > RF, EXTENDED RF BAND)

fIF = 350MHz

MAX19997A toc72

IF PORT RETURN LOSS vs. IF FREQUENCY

(LO > RF, EXTENDED RF BAND)

VCC = 4.75V, 5.0V, 5.25V

fLO = 2600MHz

MAX19997A toc73

IF PORT RETURN LOSS vs. IF FREQUENCY

(LO > RF, EXTENDED RF BAND)

fLO = 2350MHz

MAX19997A toc74

RF PORT RETURN LOSS (dB)

1800 2300

PLO = -3dBm, 0dBm, +3dBm

RF FREQUENCY (MHz)

LO PORT RETURN LOSS vs. LO FREQUENCY

LO PORT RETURN LOSS (dB)

1900 3400

IF PORT RETURN LOSS (dB)

2200210020001900

(LO > RF, EXTENDED RF BAND)

PLO = +3dBm

PLO = -3dBm

LO FREQUENCY (MHz)

PLO = 0dBm

2900 3150265024002150

IF FREQUENCY (MHz

400

MAX19997A toc75

390

380

370

SUPPLY CURRENT (mA)

360

350

IF PORT RETURN LOSS (dB)

fLO = 2600MHz

410320230140

500

SUPPLY CURRENT vs. TEMPERATURE (TC)

(LO > RF, EXTENDED RF BAND)

VCC = 5.25V

VCC = 4.75V

-35 TEMPERATURE (°C)

VCC = 5.0V

45 65255-15

IF FREQUENCY (MHz)

MAX19997A toc76

fLO = 2950MHz

410320230140

500

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = -30°C

CONVERSION GAIN (dB)

TC = +85°C

2200 3000

RF FREQUENCY (MHz)

TC = +25°C

280026002400

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +85°C

PRF = -5dBm/TONE

TC = +25°C

MAX19997A toc77

CONVERSION GAIN (dB)

MAX19997A toc80

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

280026002400

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

PRF = -5dBm/TONE

PLO = -3dBm, 0dBm, +3dBm

MAX19997A toc78

MAX19997A toc81

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

CONVERSION GAIN (dB)

2200 3000

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

PRF = -5dBm/TONE

MAX19997A toc79

280026002400

MAX19997A toc82

INPUT IP3 (dBm)

TC = -30°C

2200 3000

RF FREQUENCY (MHz)

280026002400

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

NOISE FIGURE (dB)

TC = +25°C

2200 3000

TC = +85°C

TC = -30°C

280026002400

RF FREQUENCY (MHz)

INPUT IP3 (dBm)

MAX19997A toc83

NOISE FIGURE (dB)

2200 3000

RF FREQUENCY (MHz)

280026002400

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

2200 3000

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

INPUT IP3 (dBm)

MAX19997A toc84

NOISE FIGURE (dB)

VCC = 4.75V, 5.0V, 5.25V

2200 3000

RF FREQUENCY (MHz)

280026002400

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

2200 3000

VCC = 4.75V, 5.0V, 5.25V

280026002400

RF FREQUENCY (MHz)

MAX19997A toc85

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

20 ______________________________________________________________________________________

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +85°C

PRF = -5dBm

MAX19997A toc86

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

PLO = 0dBm

PRF = -5dBm

PLO = +3dBm

MAX19997A toc87

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 4.75V, 5.0V, 5.25V

PRF = -5dBm

MAX19997A toc88

2RF-2LO RESPONSE (dBc)

TC = -30°C

TC = +25°C

2200 3000

RF FREQUENCY (MHz)

280026002400

3RF-3LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

3RF-3LO RESPONSE (dBc)

2200

TC = -30°C, +25°C, +85°C

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

PRF = -5dBm

280026002400

(RF > LO, STANDARD RF BAND)

MAX19997A toc89

3000

2RF-2LO RESPONSE (dBc)

2200 3000

RF FREQUENCY (MHz)

PLO = -3dBm

280026002400

3RF-3LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

3RF-3LO RESPONSE (dBc)

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

PRF = -5dBm

280026002400

(RF > LO, STANDARD RF BAND)

2RF-2LO RESPONSE (dBc)

2200 3000

3RF-3LO RESPONSE vs. RF FREQUENCY

MAX19997A toc90

3RF-3LO RESPONSE (dBc)

2200 3000

280026002400

RF FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

PRF = -5dBm

VCC = 4.75V, 5.0V, 5.25V

280026002400

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

(RF > LO, STANDARD RF BAND)

MAX19997A toc91

(dBm)

1dB

INPUT P

2200 3000

TC = +85°C

TC = -30°C

RF FREQUENCY (MHz)

TC = +25°C

280026002400

MAX19997A toc92

(dBm)

1dB

INPUT P

2200 3000

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

MAX19997A toc93

(dBm)

INPUT P

VCC = 5.0V

1dB

2200 3000

RF FREQUENCY (MHz)

VCC = 5.25V

VCC = 4.75V

MAX19997A toc94

280026002400

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

CHANNEL ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

CHANNEL ISOLATION (dB)

2200 3000

TC = -30°C, +25°C, +85°C

280026002400

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

CHANNEL ISOLATION vs. RF FREQUENCY

MAX19997A toc95

CHANNEL ISOLATION (dB)

2200 3000

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

MAX19997A toc98

-10

(RF > LO, STANDARD RF BAND)

MAX19997A toc96

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

MAX19997A toc99

CHANNEL ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

CHANNEL ISOLATION (dB)

2200 3000

VCC = 4.75V, 5.0V, 5.25V

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

-10

MAX19997A toc97

280026002400

MAX19997A toc100

TC = -30°C, +25°C, +85°C

-20

LO LEAKAGE AT IF PORT (dBm)

-30 1850 2650

LO FREQUENCY (MHz)

245022502050

RF-TO-IF ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +85°C

TC = +25°C

RF-TO-IF ISOLATION (dB)

2200 3000

RF FREQUENCY (MHz)

TC = -30°C

280026002400

-20

LO LEAKAGE AT IF PORT (dBm)

-30 1850 2650

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX19997A toc101

RF-TO-IF ISOLATION (dB)

2200 3000

PLO = -3dBm, 0dBm, +3dBm

245022502050

LO FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

-20

LO LEAKAGE AT IF PORT (dBm)

-30 1850 2650

RF-TO-IF ISOLATION vs. RF FREQUENCY

MAX19997A toc102

RF-TO-IF ISOLATION (dB)

2200 3000

VCC = 4.75V, 5.0V, 5.25V

245022502050

LO FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

MAX19997A toc103

VCC = 4.75V, 5.0V, 5.25V

280026002400

RF FREQUENCY (MHz)

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

22 ______________________________________________________________________________________

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 1900 2900

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

-10

-20

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 1900

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

MAX19997A toc104

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

2700250023002100

-50

PLO = -3dBm, 0dBm, +3dBm

1900 2900

LO FREQUENCY (MHz)

2700250023002100

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

-10

MAX19997A toc107

-20

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50

2700250023002100

2900

1900

PLO = -3dBm, 0dBm, +3dBm

2700250023002100

LO FREQUENCY (MHz)

MAX19997A toc105

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50

-10

MAX19997A toc108

-20

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

2900

-50

VCC = 4.75V, 5.0V, 5.25V

1900 2900

LO FREQUENCY (MHz)

2700250023002100

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

VCC = 4.75V, 5.0V, 5.25V

1900 2900

LO FREQUENCY (MHz)

2700250023002100

MAX19997A toc106

MAX19997A toc109

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

RF PORT RETURN LOSS vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

RF PORT RETURN LOSS (dB)

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

fIF = 350MHz

280026002400

LO PORT RETURN LOSS vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

PLO = +3dBm

IF PORT RETURN LOSS vs. IF FREQUENCY

(RF > LO, STANDARD RF BAND)

fLO = 2250MHz

IF PORT RETURN LOSS (dB)

fLO = 1850MHz

50 500

IF FREQUENCY (MHz)

MAX19997A toc114

fLO = 2650MHz

320 410230140

MAX19997A toc110

IF PORT RETURN LOSS (dB)

IF PORT RETURN LOSS vs. IF FREQUENCY

(RF > LO, STANDARD RF BAND)

fLO = 2250MHz

VCC = 4.75V, 5.0V, 5.25V

50 500

IF FREQUENCY (MHz)

320 410230140

SUPPLY CURRENT vs. TEMPERATURE (TC)

(RF > LO, STANDARD RF BAND)

400

390

MAX19997A toc113

MAX19997A toc111

VCC = 5.25V

MAX19997A toc112

LO PORT RETURN LOSS (dB)

PLO = -3dBm

1900 3400

LO FREQUENCY (MHz)

PLO = 0dBm

2650 2900 315024002150

380

370

SUPPLY CURRENT (mA)

360

350

VCC = 4.75V

-35 85 TEMPERATURE (°C)

VCC = 5.0V

25 45 655-15

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

24 ______________________________________________________________________________________

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = -30°C

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +25°C

VCC = 3.3V

MAX19997A toc115

CONVERSION GAIN vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

MAX19997A toc116

MAX19997A toc117

CONVERSION GAIN (dB)

2200 3000

RF FREQUENCY (MHz)

TC = +85°C

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

INPUT IP3 (dBm)

2200 3000

TC = +85°C

TC = -30°C

RF FREQUENCY (MHz)

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +85°C

280026002400

PRF = -5dBm/TONE

TC = +25°C

280026002400

VCC = 3.3V

CONVERSION GAIN (dB)

MAX19997A toc118

INPUT IP3 (dBm)

MAX19997A toc121

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

280026002400

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

PRF = -5dBm/TONE

280026002400

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

CONVERSION GAIN (dB)

2200 3000

MAX19997A toc119

INPUT IP3 (dBm)

MAX19997A toc122

VCC = 3.0V, 3.3V, 3.6V

280026002400

RF FREQUENCY (MHz)

INPUT IP3 vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

PRF = -5dBm/TONE

VCC = 3.0V, 3.3V, 3.6V

2200 3000

RF FREQUENCY (MHz)

280026002400

NOISE FIGURE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

MAX19997A toc120

MAX19997A toc123

NOISE FIGURE (dB)

TC = +25°C

2200 3000

RF FREQUENCY (MHz)

TC = -30°C

280026002400

NOISE FIGURE (dB)

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

280026002400

NOISE FIGURE (dB)

2200 3000

VCC = 3.0V, 3.3V, 3.6V

RF FREQUENCY (MHz)

280026002400

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

TC = -30°C

2RF-2LO RESPONSE (dBc)

TC = +85°C

2200 3000

RF FREQUENCY (MHz)

PRF = -5dBm

TC = +25°C

280026002400

3RF-3LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PRF = -5dBm

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

2RF-2LO RESPONSE (dBc)

2200 3000

VCC = 3.3V

VCC = 3.0V

RF FREQUENCY (MHz)

3RF-3LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.0V, 3.3V, 3.6V

MAX19997A toc124

2RF-2LO RESPONSE (dBc)

2200 3000

MAX19997A toc127

2RF-2LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = +3dBm

PLO = -3dBm

RF FREQUENCY (MHz)

PRF = -5dBm

PLO = 0dBm

280026002400

3RF-3LO RESPONSE vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

PRF = -5dBm

MAX19997A toc125

MAX19997A toc128

PRF = -5dBm

VCC = 3.6V

280026002400

PRF = -5dBm

MAX19997A toc126

MAX19997A toc129

3RF-3LO RESPONSE (dBc)

TC = -30°C, +25°C, +85°C

2200 3000

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

280026002400

(RF > LO, STANDARD RF BAND)

(dBm)

1dB

INPUT P

TC = -30°C

2200 3000

TC = +85°C

TC = +25°C

280026002400

RF FREQUENCY (MHz)

VCC = 3.3V

3RF-3LO RESPONSE (dBc)

2200 3000

MAX19997A toc130

(dBm)

1dB

INPUT P

2200 3000

280026002400

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

3RF-3LO RESPONSE (dBc)

2200 3000

MAX19997A toc131

(dBm)

1dB

INPUT P

2200 3000

280026002400

RF FREQUENCY (MHz)

INPUT P

vs. RF FREQUENCY

1dB

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

RF FREQUENCY (MHz)

VCC = 3.6V

VCC = 3.0V

280026002400

MAX19997A toc132

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

26 ______________________________________________________________________________________

CHANNEL ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

CHANNEL ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

CHANNEL ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

CHANNEL ISOLATION (dB)

LO LEAKAGE AT IF PORT (dBm)

TC = -30°C, +25°C, +85°C

2200 3000

RF FREQUENCY (MHz)

LO LEAKAGE AT IF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

TC = -30°C

-10

-20

-30

TC = +85°C

TC = +25°C

1850 2650

LO FREQUENCY (MHz)

280026002400

VCC = 3.3V

245022502050

MAX19997A toc133

CHANNEL ISOLATION (dB)

2200 3000

LO LEAKAGE AT IF PORT vs. LO FREQUENC

MAX19997A toc136

-10

-20

LO LEAKAGE AT IF PORT (dBm)

-30 1850 2650

PLO = -3dBm, 0dBm, +3dBm

280026002400

RF FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

245022502050

LO FREQUENCY (MHz)

MAX19997A toc134

CHANNEL ISOLATION (dB)

2200 3000

LO LEAKAGE AT IF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

MAX19997A toc137

-10

-20

LO LEAKAGE AT IF PORT (dBm)

-30 1850 2650

MAX19997A toc135

VCC = 3.0V, 3.3V, 3.6V

280026002400

RF FREQUENCY (MHz)

MAX19997A toc138

VCC = 3.0V, 3.3V, 3.6V

245022502050

LO FREQUENCY (MHz)

RF-TO-IF ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

TC = +85°C

RF-TO-IF ISOLATION (dB)

TC = +25°C

2200 3000

RF FREQUENCY (MHz)

TC = -30°C

280026002400

VCC = 3.3V

MAX19997A toc139

RF-TO-IF ISOLATION (dB)

RF-TO-IF ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

2200 3000

RF FREQUENCY (MHz)

280026002400

MAX19997A toc140

RF-TO-IF ISOLATION vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.0V, 3.3V, 3.6V

RF-TO-IF ISOLATION (dB)

2200

RF FREQUENCY (MHz)

MAX19997A toc141

280026002400

3000

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 1900

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

VCC = 3.3V

2500 270023002100

2900

2LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

-20

VCC = 3.3V

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

-10

MAX19997A toc142

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 1900

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

-10

MAX19997A toc145

-20

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

2500 270023002100

LO FREQUENCY (MHz)

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

MAX19997A toc143

2900

MAX19997A toc146

LO LEAKAGE AT RF PORT vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

-10

-20

-30

-40

LO LEAKAGE AT RF PORT (dBm)

-50 1900

VCC = 3.0V, 3.3V, 3.6V

2500 270023002100

LO FREQUENCY (MHz)

2LO LEAKAGE AT RF PORT vs. LO FREQUENC

(RF > LO, STANDARD RF BAND)

-10

-20

MAX19997A toc144

2900

MAX19997A toc147

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 1900

TC = -30°C, +25°C, +85°C

LO FREQUENCY (MHz)

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50

2500 270023002100

2900

1900

PLO = -3dBm, 0dBm, +3dBm

2500 270023002100

LO FREQUENCY (MHz)

2900

-30

-40

2LO LEAKAGE AT RF PORT (dBm)

-50 1900

VCC = 3.0V, 3.3V, 3.6V

LO FREQUENCY (MHz)

2500 270023002100

2900

Typical Operating Characteristics (continued)

(

Typical Application Circuit

, standard RF band (see Table 1), VCC= +5.0V, LO is low-side injected for a 350MHz IF, PLO= 0dBm,

= -5dBm, TC= +25°C, unless otherwise noted.)

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

28 ______________________________________________________________________________________

RF PORT RETURN LOSS vs. RF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

PLO = -3dBm, 0dBm, +3dBm

IF PORT RETURN LOSS vs. IF FREQUENCY

(RF > LO, STANDARD RF BAND)

VCC = 3.3V

fLO = 2650MHz

fIF = 350MHz

MAX19997A toc148

IF PORT RETURN LOSS vs. IF FREQUENCY

(RF > LO, STANDARD RF BAND)

fLO = 2250MHz

MAX19997A toc149

MAX19997A toc150

RF PORT RETURN LOSS (dB)

2200 3000

2600 28002400

RF FREQUENCY (MHz)

LO PORT RETURN LOSS (dB)

IF PORT RETURN LOSS (dB)

VCC = 3.0V, 3.3V, 3.6V

50 500

LO PORT RETURN LOSS vs. LO FREQUENCY

(RF > LO, STANDARD RF BAND)

1900

PLO = +3dBm

PLO = -3dBm

PLO = 0dBm

2400 2650 2900 31502150

LO FREQUENCY (MHz)

VCC = 3.3V

230 320 410140

IF FREQUENCY (MHz)

300

290

MAX19997A toc151

280

270

SUPPLY CURRENT (mA)

260

3400

250

fLO = 1850MHz

IF PORT RETURN LOSS (dB)

50 500

IF FREQUENCY (MHz)

SUPPLY CURRENT vs. TEMPERATURE (TC)

(RF > LO, STANDARD RF BAND)

VCC = 3.6V

VCC = 3.3V

VCC = 3.0V

-35 85 TEMPERATURE (°C)

6545255-15

fLO = 2250MHz

230 320 410140

MAX19997A toc152

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________ 29

Detailed Description

The MAX19997A dual, downconversion mixer provides high linearity and low noise figure for a multitude of 1800MHz to 2900MHz base-station applications. The device fully supports both low-side and high-side LO injection architectures for the 2300MHz to 2900MHz WiMAX, LTE, WCS, and MMDS bands. WCDMA, cdma2000, and PCS1900 applications utilizing highside LO injection architectures are also supported by adding one additional tuning element (a shunt inductor) on each RF port.

The MAX19997A operates over an LO range of 1950MHz to 3400MHz and an IF range of 50MHz to 500MHz. Integrated baluns and matching circuitry allow 50Ω single-ended interfaces to the RF and LO ports. The integrated LO buffer provides a high drive

level to the mixer core, reducing the LO drive required at the MAX19997A’s input to a range of -3dBm to +3dBm. The IF port incorporates a differential output, which is ideal for providing enhanced 2RF-2LO (lowside injection) and 2LO-2RF (high-side injection) performance.

RF Input and Balun

The MAX19997A’s two RF inputs (RFMAIN and RFDIV) provide a 50Ω match when combined with a series DCblocking capacitor. This DC-blocking capacitor is required as the input is internally DC shorted to ground through each channel’s on-chip balun. When using a 22pF DC-blocking capacitor, the RF port input return loss is typically 15dB over the RF frequency range of 2600MHz to 2900MHz.

Pin Description

PIN NAME FUNCTION

1 RFMAIN

2, 5, 6, 8, 12, 15,

18, 23, 28, 31, 34

3, 7, 20, 22, 24–27 GND

4, 10, 16, 21, 30,

9 RFDIV Diversity Channel RF Input. Internal matched to 50Ω. Requires a DC-blocking capacitor.

11 IFD_SET

13, 14 IFD+, IFD-

17 LO_ADJ_D

19 LO

29 LO_ADJ_M

32, 33 IFM-, IFM+

35 IFM_SET

GND Ground. Not internally connected. Ground these pins or leave unconnected.

Main Channel RF Input. Internally matched to 50Ω. Requires an input DC-blocking capacitor.

Ground. Internally connected to the exposed pad. Connect all ground pins and the exposed pad (EP) together.

Power Supply. Connect bypass capacitors as close as possible to the pin (see the Typical Application Circuit).

IF Diversity Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias current for the diversity IF amplifier.

Diversity Mixer Differential IF Output. Connect pullup inductors from each of these pins to V

(see the Typical Application Circuit).

LO Diversity Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias current for the diversity LO amplifier.

Local Oscillator Input. This input is internally matched to 50Ω. Requires an input DCblocking capacitor.

LO Main Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias current for the main LO amplifier.

Main Mixer Differential IF Output. Connect pullup inductors from each of these pins to

(see the Typical Application Circuit).

IF Main Amplifier Bias Control. Connect a resistor from this pin to ground to set the bias current for the main IF amplifier.

E xp osed P ad . Inter nal l y connected to GN D . S ol d er thi s exp osed p ad to a P C B p ad that

—EP

uses m ul ti p l e g r ound vi as to p r ovi d e heat tr ansfer out of the d evi ce i nto the P C B g r ound p l anes. These m ul ti p l e g r ound vi as ar e al so r eq ui r ed to achi eve the noted RF p er for m ance.

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

30 ______________________________________________________________________________________

The MAX19997A’s RF range can be further extended down to 1800MHz by adding one additional tuning element on each RF port. For 1950MHz RF applications, connect a 12nH shunt inductor from pins 1 and 9 to ground. Also, change the value of the DC-blocking capacitors (C1 and C8) from 22pF to 1pF. See the

Typical Application Circuit

for details.

LO Input, Buffer, and Balun

A two-stage internal LO buffer allows a wide input power range for the LO drive. All guaranteed specifications are for an LO signal power from -3dBm to +3dBm. The on-chip low-loss balun, along with an LO buffer, drives the double-balanced mixer. All interfacing and matching components from the LO input to the IF outputs are integrated on-chip.

High-Linearity Mixer

The core of the MAX19997A is a pair of doublebalanced, high-performance passive mixers. Exceptional linearity is provided by the large LO swing from the on-chip LO buffer. When combined with the integrated IF amplifiers, the cascaded IIP3, 2RF-2LO rejection, and NF performance are typically +24dBm IIP3, -67dBc, and 10.3dB, respectively for low-side LO injection architectures covering the 2300MHz to 2900MHz band. Cascaded performance levels are comparable for high-side LO injection architectures; IIP3, 2LO-2RF rejection, and NF levels are typically rated at +24dBm IIP3, -73dBc, and 10.4dB, respectively over the same 2300MHz to 2900MHz band.

Differential IF Output Amplifier

The MAX19997A mixers have an IF frequency range of 50MHz to 500MHz. The differential, open-collector IF output ports require external pullup inductors to V

. These pullup inductors are also used to resonate out the parasitic shunt capacitance of the IC, PCB components, and PCB to provide an optimized IF match at the frequency of interest. Note that differential IF outputs are ideal for providing enhanced 2RF-2LO and 2LO-2RF rejection performance. Single-ended IF applications require a 4:1 balun to transform the 200Ω differential output impedance to a 50Ω single-ended output. After the balun, voltage standing-wave ratio (VSWR) is typically 1.2:1.

Applications Information

Input and Output Matching

The RF and LO inputs are internally matched to 50Ω. No matching components are required for RF frequencies ranging from 2400MHz to 2900MHz. RF and LO inputs require only DC-blocking capacitors for interfacing.

If desired, the RF band can be extended down to 1800MHz by adding two external matching components on each RF port. See the

Typical Application

Circuit

and Table 2 for details.

The IF output impedance is 200Ω (differential). For evaluation, an external low-loss 4:1 (impedance ratio) balun transforms this impedance down to a 50Ω singleended output (see the

Typical Application Circuit

Reduced-Power Mode

Each channel of the MAX19997A has two pins (LO_ADJ_, IF_SET) that allow external resistors to set the internal bias currents. Nominal values for these resistors are shown in Tables 1 and 2. Larger-value resistors can be used to reduce power dissipation at the expense of some performance loss. If ±1% resistors are not readily available, ±5% resistors may be substituted.

Significant reductions in power consumption can be realized by operating the mixer with an optional supply voltage of +3.3V. Doing so reduces the overall power consumption by up to 53%. See the

+3.3V Supply AC

Electrical Characteristics

table and the relevant +3.3V

curves in the

Typical Operating Characteristics

section

to evaluate the power vs. performance tradeoffs.

Layout Considerations

A properly designed PCB is an essential part of any RF/microwave circuit. Keep RF signal lines as short as possible to reduce losses, radiation, and inductance. For the best performance, route the ground pin traces directly to the exposed pad under the package.

The PCB exposed pad MUST be connected to the ground plane of the PCB. It is suggested that multiple vias be used to connect this pad to the lower-level ground planes. This method provides a good RF/thermal-conduction path for the device. Solder the exposed pad on the bottom of the device package to the PCB. The MAX19997A evaluation kit can be used as a reference for board layout. Gerber files are available upon request at www.maxim-ic.com.

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________ 31

Table 1. Standard RF Band Application Circuit Component Values (Optimized for Frequencies Ranging from 2400MHz to 2900MHz)

Use 390nH (0805) inductors for an IF frequency of 200MHz. Contact the factory for details.

Power-Supply Bypassing

Proper voltage supply bypassing is essential for highfrequency circuit stability. Bypass each VCCpin with the capacitors shown in the

Typical Application Circuit

Exposed Pad RF/Thermal Considerations

The exposed pad (EP) of the MAX19997A’s 36-pin thin QFN-EP package provides a low thermal-resistance

path to the die. It is important that the PCB on which the MAX19997A is mounted be designed to conduct heat from the EP. In addition, provide the EP with a lowinductance path to electrical ground. The EP MUST be soldered to a ground plane on the PCB, either directly or through an array of plated via holes.

DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER

C1, C8 2 22pF microwave capacitors (0402)

C14 1 1.5pF microwave capacitor (0402)

C4, C9, C13, C15,

C17, C18

C10, C11, C12,

C19, C20, C21

L1, L2, L3, L4 4 120nH wire-wound high-Q inductors* (0805) Coilcraft, Inc.

L7, L8 0 Not used —

R1, R4 2

6 0.01µF microwave capacitors (0402)

6 82pF microwave capacitors (0603)

750Ω ±1% resistors (0402). Use for VCC = +5.0V applications. Larger values can be used to reduce power at the expense of some performance loss. See the Typical Operating Characteristics section.

1.1kΩ ±1% resistors (0402). Use for V values can be used to reduce power at the expense of some performance loss. See the Typical Operating Characteristics section.

= +3.3V applications. Larger

Murata Electronics North America, Inc.

Digi-Key Corp.

698Ω ±1% resistors (0402). Use for VCC = +5.0V applications. Larger values can be used to reduce power at the expense of some

R2, R5 2

R3, R6 2

T1, T2 2 4:1 IF baluns (TC4-1W-17+) Mini-Circuits

U1 1 MAX19997A IC (36 TQFN-EP)

performance loss. See the Typical Operating Characteristics section.

845Ω ±1% resistors (0402). Use for V values can be used to reduce power at the expense of some performance loss. See the Typical Operating Characteristics section.

0Ω resistors (1206). These resistors can be increased in value to reduce power dissipation in the device, but reduces the compression point. Full

performance achieved using 0Ω.

1dB

= +3.3V applications. Larger

Digi-Key Corp.

Maxim Integrated Products, Inc.

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

32 ______________________________________________________________________________________

Table 2. Extended RF Band Application Circuit Component Values (Optimized for 1950MHz Operation)

Use 390nH (0805) inductors for an IF frequency of 200MHz. Contact the factory for details.

DESIGNATION QTY DESCRIPTION COMPONENT SUPPLIER

C1, C8 2 1pF microwave capacitors (0402)

C14 1 1.5pF microwave capacitor (0402)

C4, C9, C13, C15,

C17, C18

C10, C11, C12,

C19, C20, C21

L1, L2, L3, L4 4 120nH wire-wound high-Q inductors* (0805) Coilcraft, Inc.

L7, L8 2

6 0.01µF microwave capacitors (0402)

6 82pF microwave capacitors (0603)

12nH i nd uctor ( 0402) . U se to i m p r ove RF m atch fr om 1800M H z to 2400M H z. C onnect L7 and L8 fr om p i ns 1 and 9, r esp ecti vel y, to g r ound .

Murata Electronics North America, Inc.

Coilcraft, Inc.

750Ω ±1% resistors (0402). Use for V

R1, R4 2

R2, R5 2

R3, R6 2

T1, T2 2 4:1 IF balun (TC4-1W-17+) Mini-Circuits

U1 1 MAX19997A IC (36 TQFN-EP)

values can be used to reduce power at the expense of some performance loss. See the Typical Operating Characteristics section.

698Ω ±1% resistors (0402). Use for V values can be used to reduce power at the expense of some performance loss. See the Typical Operating Characteristics section.

0Ω resistors (1206). These resistors can be increased in value to reduce power dissipation in the device, but reduces the compression point. Full

performance achieved using 0Ω.

1dB

= +5.0V applications. Larger

Digi-Key Corp.

Maxim Integrated Products, Inc.

MAX19997A

Dual, SiGe High-Linearity, 1800MHz to 2900MHz

Downconversion Mixer with LO Buffer

______________________________________________________________________________________ 33

Typical Application Circuit

RF MAIN INPUT

RF DIV INPUT

C13

C17

C18

L2*

L1*

C20

C19

IF MAIN OUTPUT

C14

4:1

GND

RFMAIN

RFDIV

EXPOSED

PAD

IFD_SET

GND

LO_ADJ_D

GND

LO_ADJ_M

GND

IFM_SET

IFD+

IFD-

IFM+

IFM-

*USE 390nH (0805) INDUCTORS FOR AN IF FREQUENCY OF 200MHz. CONTACT FACTORY FOR DETAILS.

**CONNECT INDUCTORS TO IMPROVE RF MATCH FROM 1800MHz TO 2400MHz. SEE TABLE 2 FOR DETAILS.

GND

MAX19997A

C21

C15

L3*

L4*

C10

C11

IF DIV OUTPUT

C12

L7**

L8**

GND

PACKAGE TYPE PACKAGE CODE DOCUMENT NO.

36 Thin QFN-EP T3666+2

21-0141

GND

RFMAIN

RFDIV

EXPOSED

PAD

IFD_SET

GND

LO_ADJ_D

GND

LO_ADJ_M

GND

IFM_SET

IFD+

IFD-

IFM+

IFM-

GND

MAX19997A

EXPOSED PAD ON THE BOTTOM OF THE PACKAGE.

6mm x 6mm THIN QFN (EXPOSED PAD)

TOP VIEW

Chip Information

PROCESS: SiGe BiCMOS

Package Information

For the latest package outline information and land patterns, go to www.maxim-ic.com/packages

Pin Configuration/

Functional Block Diagram

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.

____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

Dual, SiGe High-Linearity, 1800MHz to 2900MHz Downconversion Mixer with LO Buffer

MAX19997A

Rainbow Electronics MAX19997A User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual