MAX2140_05,MAX2140_05 pdf中文资料,MAX2140_05引脚图,MAX2140

EVALUATION KIT AVAILABLE

MAX2140

Complete SDARS Receiver

General Description

The MAX2140 complete receiver is designed for satellite

digital audio radio services (SDARS). The device includes

a fully monolithic VCO and only needs a SAW at the IF

and a crystal to generate the reference frequency.

To form a complete SDARS radio, the MAX2140 requires

only a low-noise amplifier (LNA), which can be controlled

by a baseband controller. The small number of external

components needed makes the MAX2140-based platform

the lowest cost and the smallest solution for SDARS.

The receiver includes a self-contained RF AGC loop and

baseband-controlled IF AGC loop, effectively providing a

total dynamic range of over 92dB.

Channel selectivity is ensured by the SAW filter and by

on-chip monolithic lowpass filters.

The fractional-N PLL allows a very small frequency step,

making possible the implementation of an AFC loop.

Additionally, the reference is provided by an external

XTAL and on-chip oscillator. A reference buffer output is

also provided.

A 2-wire interface (I

2

C-bus compatible) programs the

circuit for a wide variety of conditions, providing features

such as:

●

Programmable gains

●

Lowpass filters tuning

●

Individual functional block shutdown

The MAX2140 minimizes the requirement on the base-

band controller. No compensation or calibration proce-

dures are required. The device is available in a 7mm x

7mm 44-pin thin QFN package.

Features

●

Integrated Receiver, Requires Only One SAW Filter

●

Self-Contained RF AGC Loop

●

Differential I/Q Interface

●

Complete Integrated Frequency Generation

●

Bias Supply for External LNAs

●

Overcurrent Protection

●

Low-Power Standby Mode

●

Very Small 44-Pin Thin QFN Package

Ordering Information

PART

MAX2140ETH

MAX2140ETH+

TEMP RANGE

-40°C to +85°C

PIN-PACKAGE

44 Thin QFN-EP*

*EP

= Exposed pad.

+Denotes

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

Block Diagram/Pin Configuration

VCC_BE4

IF2QO+

I

2

CA2

SDA

QOUT+

34

33 VTUNE

32 VCCREG

31 VCC_VCO

1/N

∑ ∆

- MOD

PFD

1/R

CHP

30 VCC_FE3

29 CPOUT

28 LOCK

27 VCC_A

LPF

/4/8

QUAD

LPF

12

VCC_BE1

13

VCC_BE2

14

VCC_BE3

15

VINANT

16

VOUTANT

17

IF2IO-

HPF

18

IF2II-

19

IF2IO+

20

IF2II+

21

IOUT-

22

IOUT+

HPF

26 VCC_D

25 REFOUT

24 XTAL

23 VCC_XTAL

IF2QO-

QOUT-

35

IF2QI+

36

IF2QI-

38

I

2

CA1

42

SCL

43

44

VCC_FE0 1

RFIN+ 2

RFIN- 3

VCC_FE1 4

IFOUT+ 5

IFOUT- 6

RFAGC_C 7

VCC_FE2 8

AGCPWM 9

IFIN+ 10

IFIN- 11

41

40

39

37

XM TUNER

MAX2140

RF

AGC

Applications

●

Satellite Digital Audio Radio Services (SDARS)

●

2.4GHz ISM Radios

ACTUAL SIZE

7mm x 7mm

19-3123; Rev 4; 4/15

MAX2140

Complete SDARS Receiver

Absolute Maximum Ratings

V

CC_XX

to GND ...................................................-0.3V to +4.3V

VINANT to GND ...................................................-0.3V to +5.6V

AGCPWM to GND ................................................-0.3V to +3.0V

Digital Input Current .........................................................±10mA

Maximum VSWR Without Damage ........................................ 4:1

Maximum VSWR Without Oscillations ................................... 4:1

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

CC

+ 0.3V)

Continuous Power Dissipation (T

A

= +70°C)

44-Pin TQFN (derate 26.31mW/°C above +70°C) ....2105mW

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

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

θ

JC

.....................................................................................1°C/W

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

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

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.

CAUTION!

ESD SENSITIVE DEVICE

DC Electrical Characteristics

(V

CC

= 3.1V to 3.6V; VINANT ≥ V

CC

, VOUTANT in open circuit, T

A

= -40°C to +85°C. Typical values are at V

CC

= 3.3V, V

VINANT

=

3.3V, and T

A

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

PARAMETER

Supply Voltage Range (Note 2)

Operating Supply Current

Lock Indicator High (Locked)

Lock Indicator Low (Unlocked)

Digital Input-Logic High

Digital Input-Logic Low

Input Current for Digital Control

Pins

Input Current for AGCPWM

Voltage Drop VINANT to

VOUTANT in Normal Operating

Mode

Current Sink at VOUTANT to Flag

Bit ACP = 1

Current Sink at VOUTANT to Flag

Bit AND = 1

SYMBOL

V

INANT

I

SHDN

I

CC

V

CC

CONDITIONS

MIN

3.1

All blocks on

All blocks off

V

CC

- 0.5

V

CC

- 0.5

-1

-10

Maximum current sink at VOUTANT is

150mA

VOUTANT shorted to ground (Note 4)

195

12

20

TYP

3.3

150

30

0.5

+1

+290

0.35

500

30

MAX

3.6

5.3

180

UNITS

V

mA

µA

V

µA

V

mA

V

IH_LK

V

IL_LK

V

IH

V

IL

I

DIG

I

AGCPWM

V

ANTDC-

DROP

I

ANTDC_H

I

ANTDC_L

www.maximintegrated.com

Maxim Integrated

│

2

MAX2140

Complete SDARS Receiver

AC Electrical Characteristics

(MAX2140 EV kit, current drawn at VOUTANT, I

VOUTANT

= 150mA max, V

CC

= 3.1V to 3.6V, V

VINANT

= 3.1V to 5.3V, f

RF

= 2320MHz

to 2345MHz, f

LO

= 2076MHz, T

A

= -40°C to +85°C. Typical values are at V

CC

= V

VINANT

= 3.3V, f

RF

= 2338MHz, T

A

= +25°C, unless

otherwise noted.) (Note 2)

Interstage (IF) 259MHz SAW filter specification: insertion loss = 19dB max, 9.3MHz to 12MHz from center attenuation = 24dB min,

beyond 12MHz from center attenuation = 40dB min.

PARAMETER

GENERAL RECEIVER

Minimum Input RF Power to

Produce 20mV

P-P

(Differential) at

I and Q Baseband Outputs

Maximum Input RF Power to

Produce 400mV

P-P

(Differential)

at I and Q Baseband Outputs

LO to RF Input Leakage

P

MIN

IF AGC is set at maximum gain,

bit HPF = 0 (Note 4)

RF AGC threshold: RF_AGC_TRIP =

-17dBm; IF AGC is set at minimum gain, bit

HPF = 0

LO-related spurious > 2GHz

LO-related spurious < 2GHz

RF AGC is at maximum gain,

IF AGC is at reference gain

RF AGC is at maximum gain,

IF AGC is at reference gain -10dB

RF AGC is at maximum gain -5dB,

IF AGC is at reference gain

RF AGC is at maximum gain -10dB,

IF AGC is at reference gain

RF AGC is at maximum gain,

IF AGC is at reference gain

RF AGC is at maximum gain,

IF AGC is at reference gain -5dB

RF AGC is at maximum gain -30dB,

IF AGC is at reference gain -43dB

RF AGC is at maximum gain -20dB,

IF AGC is at reference gain -53dB

RF AGC is at maximum gain,

IF AGC is at reference gain

Out-of-Band Input IP3

(Notes 5, 7)

O_IIP3

RF AGC is at maximum gain -7dB,

IF AGC is at reference gain

RF AGC is at maximum gain -25dB,

IF AGC is at reference gain

-91

-84

dBm

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

P

MAX

P

LK_H

P

LK_L

+3

-66

-38

8.5

9.3

13.3

17.8

-32

-27

10.4

11.7

dBm

Noise Figure (Notes 3, 5)

NF

dB

15.5

21.5

In-Band Input IP3 (Notes 5, 6)

I_IIP3

dBm

+9

+6

-9

-3

+12

dBm

www.maximintegrated.com

Maxim Integrated

│

3

MAX2140

Complete SDARS Receiver

AC Electrical Characteristics (continued)

(MAX2140 EV kit, current drawn at VOUTANT, I

VOUTANT

= 150mA max, V

CC

= 3.1V to 3.6V, V

VINANT

= 3.1V to 5.3V, f

RF

= 2320MHz

to 2345MHz, f

LO

= 2076MHz, T

A

= -40°C to +85°C. Typical values are at V

CC

= V

VINANT

= 3.3V, f

RF

= 2338MHz, T

A

= +25°C, unless

otherwise noted.) (Note 2)

Interstage (IF) 259MHz SAW filter specification: insertion loss = 19dB max, 9.3MHz to 12MHz from center attenuation = 24dB min,

beyond 12MHz from center attenuation = 40dB min.

PARAMETER

SYMBOL

CONDITIONS

RF AGC is at maximum gain,

IF AGC is at reference gain

In-Band Input IP2 (Notes 5, 6)

I_IIP2

RF AGC is at maximum gain,

IF AGC is at reference gain -5dB

RF AGC is at maximum gain,

IF AGC is at reference gain -25dB

RF AGC is at maximum gain,

IF AGC is at reference gain

Out-of-Band Input IP2

(Notes 5, 7)

O_IIP2

RF AGC is at maximum gain -7dB,

IF AGC is at reference gain

RF AGC is at maximum gain -25dB,

IF AGC is at reference gain

Opposite Sideband Rejection

Image Rejection

Half IF Rejection

RF AGC LOOP

LNA Gain Reduction

Minimum RF AGC Trip Point

RF AGC Trip Point

Maximum RF AGC Trip Point

FE Programmable Gain Range

FE Programmable Gain Step

IF FILTER INTERFACE

IF Output Differential Admittance

Input Differential Impedance

Presented by the IC to the IF

Filter Output

IF AGC LOOP

IF AGC Control Voltage for Max

Gain

IF AGC Control Voltage for Min

Gain

IFAGC_VM

IFAGC_Vm

Applied at pin AGCPWM

0.2

2.5

V

Yout, IF

Zin, IF

Between pins IFOUT+, IFOUT-,

f

IF

= 259MHz and 467MHz

Between pins IFOUT+, IFOUT-,

f

IF

= 259MHz and 467MHz

1/900

+ j0

150

+ j0

S

Ω

RFAGC_

Range

RFAGC_int

OSR

IRej

HRej

Baseband frequencies = 100kHz (Note 4)

At f

LO

- f

IF

At f

LO

+ 0.5 x f

IF

(Note 4)

Bits RF4/3/2/1/0 = 00010 (BIN) (Note 4)

30

-37

32

MIN

TYP

+1

+6

+27

+38

+45

+60

39

54

53

42

-35

-33

-15

19

22

2

26

-29

dB

dBm

dB

dBm

MAX

UNITS

RFAGC_min Bits RF4/3/2/1/0 = 00000 (BIN)

RFAGC_max Bits RF4/3/2/1/0 = 10100 (BIN)

FE_Rge

FE_Step

(Note 4)

FRONT-END (FE) PROGRAMMABLE GAIN

www.maximintegrated.com

Maxim Integrated

│

4

MAX2140

Complete SDARS Receiver

AC Electrical Characteristics (continued)

(MAX2140 EV kit, current drawn at VOUTANT, I

VOUTANT

= 150mA max, V

CC

= 3.1V to 3.6V, V

VINANT

= 3.1V to 5.3V, f

RF

= 2320MHz

to 2345MHz, f

LO

= 2076MHz, T

A

= -40°C to +85°C. Typical values are at V

CC

= V

VINANT

= 3.3V, f

RF

= 2338MHz, T

A

= +25°C, unless

otherwise noted.) (Note 2)

Interstage (IF) 259MHz SAW filter specification: insertion loss = 19dB max, 9.3MHz to 12MHz from center attenuation = 24dB min,

beyond 12MHz from center attenuation = 40dB min.

PARAMETER

IF AGC Gain-Control Range

SYMBOL

IFAGC_

Rge

(Note 4)

CONDITIONS

MIN

47

TYP

MAX

64

UNITS

dB

INTERNAL BASEBAND LOWPASS FILTERS

LPF In-Band Ripple

LPFA_rip

LPFrej

BB_DG

IQ_load

From 0 to 6.3MHz with respect to the

amplitude at 100kHz

At 10.25MHz with respect to the amplitude

at 2MHz

At 16MHz with respect to the amplitude at

2MHz

From bit HPF = 0 to HPF = 1

Per each of the four pins

1861

-79

-80

-101

1.2

0.40

Bit CHP = 0

Bit CHP = 1

Across V

CHP

range

Programmable through I

2

C

1

23

0.6

1.2

5

2

Hz

2.75

Deg

RMS

V

mA

nA

dBc/Hz

14

47

0.7

21

dB

51

4

10//10

2079

240

dB

kΩ//pF

MHz

MHz/V

dB

LPF Out-of-Band Rejection

(Note 4)

INTERNAL OUTPUT STAGE

Gain Increase

Maximum I/QOUT± Pin Loading

VCO Frequency Range

VCO Tuning Gain

Synthesized VCO Phase Noise

Synthesized VCO Phase-Noise

Jitter

Charge-Pump Voltage Range

Charge-Pump Current

Pin CHP Leakage Current

PLL Reference Division Ratio

Synthesized VCO Smallest

Fractional Step

FREQUENCY GENERATION: VCO AND PLL

VCO_Range Over V

CHP

range (Note 4)

VCO_Gain

VCO_PN

VCO_jit

V

CHP

I

CHP

CHP_leak

PLLref

PLLstep

(Note 4)

At 1kHz within PLL band

At 10kHz outside PLL band

At 100kHz outside PLL band

Integrated from 100Hz to 100kHz, LO

frequency = 2079MHz

www.maximintegrated.com

Maxim Integrated

│

5

MAX2140_05

MAX2140_05概述

文档预览

MAX2140_05相似产品对比

推荐资源