MAXIM MAX2117 Technical data

General Description

The MAX2117 low-cost, direct-conversion tuner is intended for receiving MMDS transmissions in the 470MHz to 1000MHz band. The MAX2117 is designed to be used in consumer set-top boxes and is compatible with most DVB-S demodulators.

The MAX2117 directly converts the QPSK broadcast signals from the antenna to baseband using a broadband I/Q downconverter. The tuner provides differential I and Q outputs to the demodulator IC.

The device includes an LNA and an RF variable-gain amplifier, I and Q downconverting mixers, and baseband lowpass filters with programmable cutoff frequency control and digitally controlled baseband variable-gain amplifiers. Together, the RF and baseband variable-gain amplifiers provide more than 80dB of gain-control range. The IC is compatible with virtually all QPSK demodulators.

The MAX2117 includes fully monolithic VCOs, as well as a complete frequency synthesizer. Additionally, an onchip crystal oscillator is provided along with a buffered output for driving additional tuners and demodulators. Synthesizer programming and device configuration are accomplished with a 2-wire serial interface. The IC features a VCO autoselect (VAS) function that automatically selects the proper VCO. For multituner applications, the device can be configured to have one of two 2-wire interface addresses. A low-power standby mode is available whereupon the signal path is shut down while leaving the reference oscillator, digital interface, and buffer circuits active, providing a method to reduce power in single and multituner applications.

The MAX2117 is the most advanced MMDS tuner available today. The low noise figure eliminates the need for an external LNA. A small number of passive components are needed to form a complete MMDS front-end solution. The tuner is available in a very small 28-pin thin QFN package.

Applications

MMDS

Features

o 470MHz to 1000MHz Frequency Range

o Monolithic VCO: No Calibration Required

o High Dynamic Range: -75dBm to 0dBm

o 4MHz to 40MHz Integrated Variable BW LP Filters

o Single +3.3V ±5% Supply

o Low-Power Standby Mode

o Address Pin for Multituner Applications

o Differential I/Q Interface

o I2C 2-Wire Serial Interface

o Very Small 28-Pin Thin QFN Package

MAX2117

Complete, Direct-Conversion Tuner for

MMDS Applications

________________________________________________________________

Maxim Integrated Products

19-0986; Rev 2; 5/10

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.

VTUNE

GNDSYN

CPOUT

VCC_SYN

XTAL

VCOBYP

SCL

VCC_BB

QDC-

ADDR

QDC+

IDC-

RFIN

GC1

VCC_LO

IOUT+

QOUT-

VCC_DIG

GNDTUNE

SDA

VCC_VCO

REFOUT

GND

IOUT-

VCC_RF1

IDC+

26 24 23

10 12

11 132214

VCC_RF2

MAX2117

INTERFACE LOGIC

AND CONTROL

DC OFFSET

CORRECTION

LPF BW

CONTROL

DIV4/DIV8

FREQUENCY

SYNTHESIZER

QOUT+

Pin Configuration/

Functional Diagram

Ordering Information

EP = Exposed paddle.

Denotes a lead(Pb)-free/RoHS-compliant package.

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX2117CTI+ 0°C to +70°C 28 Thin QFN-EP*

Complete, Direct-Conversion Tuner for MMDS Applications

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.

VCCto GND...........................................................-0.3V to +3.9V

All Other Pins to GND.................................-0.3V to (V

+ 0.3V)

RF Input Power: RFIN .....................................................+10dBm

VCOBYP, CPOUT, REFOUT, XTAL, IOUT_, QOUT_, IDC_, and

QDC_ Short-Circuit Protection.............................................10s

Continuous Power Dissipation (T

= +70°C)

28-Pin Thin QFN (derated 34.5mW/°C above +70°C)........2.75W

Operating Temperature Range...............................0°C to +70°C

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

Storage Temperature Range .............................-65°C to +160°C

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

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

DC ELECTRICAL CHARACTERISTICS

(MAX2117 Evaluation Kit: VCC= +3.13V to +3.47V, V

GC1

= +0.5V (max gain), TA= 0°C to +70°C. No input signals at RF, baseband I/Os are open circuited, and LO frequency = 1000MHz. Default register settings except BBG[3:0] = 1011. Typical values measured at V

= +3.3V, TA = +25°C, unless otherwise noted.) (Note 1)

MAX2117

CAUTION! ESD SENSITIVE DEVICE

PARAMETER CONDITIONS MIN TYP MAX UNITS

SUPPLY

Supply Voltage 3.13 3.3 3.47 V

Supply Current

ADDRESS SELECT INPUT (ADDR)

Digital Input-Voltage High, VIH 2.4 V

Digital Input-Voltage Low, VIL 0.5 V

Digital Input-Current High, IIH 50 µA

Digital Input-Current Low, IIL -50 µA

ANALOG GAIN-CONTROL INPUT (GC1)

Input Voltage Range Max imum gain = 0.5V 0.5 2.7 V

Input Bias Current -50 +50 µA

VCO TUNING VOLTAGE INPUT (VTUNE)

Input Voltage Range 0.4 2.3 V

2-WIRE SERIAL INPUTS (SCL, SDA)

Cloc k Frequency 400 kHz

Input Logic-Leve l High

Input Logic-Level Low

Input Leakage Current Digital inputs = GND or VCC ±0.1 ±1 µA

2-WIRE SERIAL OUTPUT (SDA)

Output Logic-Level Low I

Receive mode, bit STBY = 0 100 160

Standby mode, bit STBY = 1 3

= 1mA 0.4 V

SINK

0.7 x V

0.3 x V

MAX2117

Complete, Direct-Conversion Tuner for

MMDS Applications

_______________________________________________________________________________________ 3

AC ELECTRICAL CHARACTERISTICS

(MAX2117 Evaluation Kit: VCC= +3.13V to +3.47V, V

GC1

= +0.5V (max gain), TA= 0°C to +70°C. Default register settings except

BBG[3:0] = 1011. Typical values measured at V

= +3.3V, TA = +25°C, unless otherwise noted.) (Note 1)

PARAMETER CONDITIONS MIN TYP MAX UNITS

MAIN SIGNAL PATH PERFORMANCE

Input Frequency Range (Note 2) 470 1000 MHz

RF Gain-Control Range (GC1) 0.5V < V

Baseband Gain-Control Range Bits GC2 = 1111 to 0000 13 15 dB

In-Band Input IP3 (Note 3) +2 dBm

Out-of-Band Input IP3 (Note 4) +15 dBm

Input IP2 (Note 5) +40 dBm

Adjacent Channel Protection (Note 6) 25 dB

is set to 0.5V (maximum RF gain) and BBG[3:0] is

GC1

adjusted to give a 1V

Noise Figure

Minimum RF Input Return Loss 470MHz < f

BASEBAND OUTPUT CHARACTERISTICS

Nominal Output Voltage Swing R

I/Q Amplitude Imbalance Measured at 500kHz; filter set to 22.27MHz ±1 dB

I/Q Quadrature Phase Imbalance Measured at 500kHz; filter set to 22.27MHz 3.5 Degrees

Single-Ended I/Q Output Impedance

Output 1dB Compression Voltage Differential 3 V

Baseband Highpass -3dB Frequency Corner

BASEBAND LOWPASS FILTERS

Filter Bandwidth Range 4 40 MHz

Rejection Ratio At 2 x f

Group Delay Up to 1dB bandwidth 37 ns

Ratio of In-Filter-Band to Out-ofFilter-Band Noise

FREQUENCY SYNTHESIZER

RF-Divider Frequency Range 470 1000 MHz

RF-Divider Range (N) 235 1000

Reference-Divider Frequency Range

Reference-Divider Range (R) 1 31

Phase-Detector Comparison Frequency

-75dBm CW input tone at 1000MHz

Starting with the same BBG[3:0] setting as above, V is adjusted to back off RF gain by 10dB (Note 7)

LOAD

Real Z

47nF capacitors at IDC_, QDC_ 400 Hz

INBAND

112.5MHz

< 2.7V 65 73 dB

GC1

< 1000MHz, in 75Ω system 12 dB

= 2kΩ//10pF 0.5 1 V

, from 1MHz to 40MHz 30 Ω

-3dB

= 100Hz to 22.5MHz, f

baseband output level for a

P-P

OUTBAND

= 87.5MHz to

GC1

4 30 MHz

1 2 MHz

912

39 dB

25 dB

P-P

MAX2117

Complete, Direct-Conversion Tuner for MMDS Applications

4 _______________________________________________________________________________________

AC ELECTRICAL CHARACTERISTICS (continued)

MAX2117 Evaluation Kit: VCC= +3.13V to +3.47V, V

GC1

= +0.5V (max gain), TA= 0°C to +70°C. Default register settings except

BBG[3:0] = 1011. Typical values measured at V

= +3.3V, TA = +25°C, unless otherwise noted.) (Note 1)

Note 1: Min/max values are production tested at TA= +70°C. Min/max limits at TA= 0°C and TA= +25°C are guaranteed by design

and characterization.

Note 2: Gain-control range specifications met over this band. Note 3: In-band IIP3 test conditions: GC1 set to provide the nominal baseband output drive when mixing down a -23dBm tone at

1000MHz to 5MHz baseband (f

= 995MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at

-26dBm each are applied at 999MHz and 1000MHz. The IM3 tone at 3MHz is measured at baseband, but is referred to the RF input.

Note 4: Out-of-band IIP3 test conditions: GC1 set to provide nominal baseband output drive when mixing down a -23dBm tone at

1000MHz to 5MHz baseband (f

= 995MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at

-20dBm each are applied at 895MHz and 800MHz. The IM3 tone at 5MHz is measured at baseband, but is referred to the RF input.

Note 5: Input IP2 test conditions: GC1 set to provide nominal baseband output drive when mixing down a -23dBm tone at 1000MHz

to 5MHz baseband (f

= 995MHz). Baseband gain is set to its default value (BBG[3:0] = 1011). Two tones at -20dBm each

are applied at 470MHz and 795MHz. The IM2 tone at 5MHz is measured at baseband, but is referred to the RF input.

Note 6: Adjacent channel protection test conditions: GC1 is set to provide the nominal baseband output drive with a 1000MHz

27.5Mbaud signal at -55dBm. GC2 set for mid-scale. The test signal will be set for PR = 7/8 and SNR of -8.5dB. An adjacent channel at ±40MHz is added at -25dBm. DVB-S BER performance of 2E-4 will be maintained for the desired signal. GC2 may be adjusted for best performance.

Note 7: Guaranteed by design and characterization at T

= +25°C.

Note 8: See Table 14 for crystal ESR requirements.

PARAMETER CONDITIONS MIN TYP MAX UNITS

VOLTAGE-CONTROLLED OSCILLATOR AND LO GENERATION

Guaranteed LO Frequency Range

LO Phase Noise

XTAL/REFERENCE OSCILLATOR INPUT AND OUTPUT BUFFER

XTAL Oscillator Frequency Range

Input Overdrive Level AC-coupled sine wave input 0.5 1 2.0 V

XTAL Output-Buffer Divider Range

XTAL Output Voltage Swing 4MHz to 30MHz, C

XTAL Output Duty Cycle 50 %

= 0°C to +70°C 470 1000 MHz

OFFSET

Parallel-resonance-mode crystal (Note 8) 4.0 13.5 MHz

= 10kHz -84

= 100kHz -108

= 1MHz -122

= 10pF 1 1.5 2 V

LOAD

dBc/Hz

P-P

MAX2117

Complete, Direct-Conversion Tuner for

MMDS Applications

_______________________________________________________________________________________

Typical Operating Characteristics

(MAX2117 Evaluation Kit: VCC= +3.3V, baseband output frequency = 5MHz; V

GC1

= 1.2V; TA= +25°C. Default register settings

except BBG[3:0] = 1011.)

SUPPLY CURRENT vs. SUPPLY VOLTAGE

SUPPLY CURRENT (mA)

3.0 3.6

TA = +70°C

TA = +25°C

TA = 0°C

SUPPLY VOLTAGE (V)

HD3 vs. OUTPUT VOLTAGE

-10

-15

-20

-25

-30

-35

-40

-45

-50

BASEBAND 3RD-ORDER HARMONIC (dBc)

-55

-60

1.0 3.5 V

)

OUT

P-P

QUADRATURE PHASE

vs. BASEBAND FREQUENCY

93.5

fLO = 925MHz

92.5

91.5

90.5

89.5

QUADRATURE PHASE (°)

88.5

87.5

86.5

020

BASEBAND FREQUENCY (MHz)

3.53.43.33.23.1

3.02.52.01.5

TA = +70°C

TA = +25°C

MAX2117 toc01

MAX2117 toc04

TA = 0°C

161284

STANDBY MODE SUPPLY CURRENT

vs. SUPPLY VOLTAGE

2.900

2.800

2.700

2.600

2.500

SUPPLY CURRENT (mA)

2.400

2.300

TA = +70°C

TA = 0°C, +25°C

3.0 3.6 SUPPLY VOLTAGE (V)

QUADRATURE PHASE vs. LO FREQUENCY

93.5 f

= 10MHz

BASEBAND

92.5

91.5

90.5

89.5

88.5

QUADRATURE PHASE (°)

87.5

86.5

450 550 650 750 850 950 1050

MAX2117 toc06a

TA = 0°C

TA = +70°C

LO FREQUENCY (MHz)

TA = +25°C

3.53.43.33.23.1

QUADRATURE MAGNITUDE MATCHING (dB)

vs. BASEBAND FILTER CUTOFF FREQUENCY

104

102

MAX2117 toc02

100

SUPPLY CURRENT (mA)

4 8 12 16 20 24 28 32 36 40

BASEBAND FILTER CUTOFF FREQUENCY (MHz)

QUADRATURE MAGNITUDE MATCHING

1.0 f

BASEBAND

0.8

MAX2117 toc5a

0.6

0.4

0.2

-0.2

-0.4

-0.6

-0.8

QUADRATURE MAGNITUDE MATCHING (dB)

-1.0 450 550 650 750 850 950 1050

QUADRATURE MAGNITUDE MATCHING

vs. BASEBAND FREQUENCY

1.0

fLO = 925MHz

0.8

0.6

0.4

0.2

-0.2

-0.4

-0.6

-0.8

-1.0

TA = +25°C

020

BASEBAND FREQUENCY (MHz)

SUPPLY CURRENT

vs. LO FREQUENCY

= 10MHz

TA = 0°C

TA = +70°C

LO FREQUENCY (MHz)

TA = +70°C

TA = 0°C

MAX2117 toc03

MAX2117 toc5b

TA = +25°C

MAX2117 toc06b

161284

MAX2117

Complete, Direct-Conversion Tuner for MMDS Applications

6 _______________________________________________________________________________________

Typical Operating Characteristics (continued)

(MAX2117 Evaluation Kit: VCC= +3.3V, baseband output frequency = 5MHz; V

GC1

= 1.2V; TA= +25°C. Default register settings

except BBG[3:0] = 1011.)

BASEBAND FILTER

FREQUENCY RESPONSE

MAX2117 toc07

BASEBAND FREQUENCY (MHz)

BASEBAND OUTPUT LEVEL (dB)

604020

-60

-50

-30

-40

-20

-10

-80

-70

080

BASEBAND FILTER HIGHPASS

FREQUENCY RESPONSE

MAX2117 toc08

BASEBAND FREQUENCY (MHz)

BASEBAND OUTPUT LEVEL (dB)

1000

-10

-8

-4

-6

-2

-14

-12

100 10,000

PROGRAMMED f

-3dB

FREQUENCY

vs. MEASURED f

-3dB

FREQUENCY

MAX2117 toc09

PROGRAMMED f

-3dB

FREQUENCY (MHz)

MEASURED f

-3dB

FREQUENCY (MHz)

402015 25 30 35510

045

LPF[7:0] = 12 + (f

-3dB

- 4MHz) / 290kHz

BASEBAND FILTER 3dB FREQUENCY

vs. TEMPERATURE

MAX2117 toc10

TEMPERATURE (°C)

BASEBAND GAIN ERROR AT f

-3dB

(dB)

4020 30 605010

-0.8

-0.6

-0.4

-0.2

0.2

0.6

0.4

0.8

1.0

-1.0 070

NORMALIZED TO TA = +25°C

INPUT POWER vs. V

GC1

MAX2117 toc11

GC1

(V)

INPUT POWER (dBm)

2.52.01.51.0

-60

-50

-40

-30

-20

-10

-80

-70

0.5 3.0

TA = +70°C

TA = +25°C

ADJUST BBG[3:0] FOR 1V

P-P

BASEBAND OUTPUT WITH P

= -75dBm AND V

GC1

= 0.5V

NOISE FIGURE vs. FREQUENCY

FREQUENCY (MHz)

NOISE FIGURE (dB)

MAX2117 toc12

450 550 650 750 850 950

7.5

8.0

8.5

9.0

9.5

10.0

TA = +25°C

TA = +70°C

ADJUST BBG[3:0] FOR 1V

P-P

BASEBAND OUTPUT WITH P

= -75dBm AND V

GC1

= 0.5V

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