MAXIM MAX3543 Technical data

19-4985; Rev 2; 7/10

EVALUATION KIT

AVAILABLE

General Description

The MAX3543 hybrid broadband single-conversion tele­vision tuner is designed for use in analog (PAL, SECAM)
+ digital (DVB-T, GB20600) television sets and terrestrial
receivers. It receives all television bands from 47MHz
to 862MHz and converts the selected channel to an
industry-standard 36MHz IF.

The MAX3543 includes a variable-gain low-noise input
amplifier; an RF tracking filter; an image rejection mixer;
a peak detector; an optional internal, self-contained
RF gain-control loop (RFAGC); a VCO with fractional-N
PLL; an IF bandpass filter; an IF variable-gain amplifier;
separate analog and digital IF outputs; and a crystal
oscillator.

The MAX3543 is available in a small, 6mm x 6mm, thin QFN
package, and the application circuit fits in 20mm x 25mm on
a two-layer board with single-sided component mounting.

Applications

DVB-T/DVB-T2 +
PAL/SECAM

DVB-C + PAL/SECAM

DTMB/GB20600 + PAL

ATSC + NTSC

Multiband Analog and

Digital Television Tuner

Features

S Standard IF Architecture Ensures < -70dBc Spurs

S Integrated RF Tracking Filter

S Integrated IF Bandpass Filter

S

Full-Band Coverage (47MHz to 862MHz)

S

70dB Image Rejection

S

4dB Noise Figure

S

Fast-Locking, Low Phase-Noise PLL Supports

256QAM

S Crystal Oscillator and Buffer/Divider to Drive

Baseband IC

S 745mW Power Dissipation

Ordering Information

PART TEMP RANGE PIN-PACKAGE

MAX3543CTL+

0NC to +70NC

+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed paddle.

40 TQFN-EP*

MAX3543

Block Diagram/Typical Application Circuit/Pin Configuration

CC

TUNE

GND

FRAC-N

RFGND2

25

PLL

IFOUT1A

SDA

IFOUT1B

REFDIV

XTALE

/N

8 9 10

ADDR

IFVGC

LC BANDPASS

I2C

FILTER

XTALB

21

IFIN-

20

19

18

17

16

15

14

13

12

11

SCL

V

CCDIG

REFOUT

GND

DTVOUT+

DTVOUT-

IFOUT2

V

CC

GND

IFIN+

REF_OUT

2

C

I

DIGITAL

DEMODULATOR

OR

A + D

DEMODULATOR

IFVGC

DIG_IF

ANA_IF

ANALOG

DEMODULATOR

TFVL2

TFVH1

TFVH2

TFU1

TFU2A

TFU2B

TFU3

LEXT

RFINL

LDOBYP

VCCTFVL1

V

27282930 26 24 23 22

31

32

33

MAX3543

34

35

TRACKING

36

FILTER

37

38

V

CC

39

40

+

1 2

RFINH

RFGND1

PDET

4 5 6 7

3

CCIF

V

RFVGC

_______________________________________________________________ Maxim Integrated Products 1

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.

Multiband Analog and
Digital Television Tuner

ABSOLUTE MAXIMUM RATINGS

VCC to GND ..........................................................-0.3V to +3.6V

RFINL, RFINH, IFIN+, IFIN-, DTVOUT+, DTVOUT-,

IFOUT1A, IFOUT1B, IFOUT2 ............... -0.3V to (V

SDA, SCLK, IFAGC, RFVGA ................................ -0.3V to +3.6V

Short-Circuit Protection: DTVOUT+, DTVOUT-,

IFOUT1A, IFOUT1B, IFOUT2 .................................... Indefinite

RF Input Power .............................................................. +10dBm

MAX3543

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.

CC

+ 0.3V)

DC ELECTRICAL CHARACTERISTICS

(MAX3543 Evaluation Kit, VCC = 3.1V to 3.5V, TA = 0NC to +70NC, registers set according to Table 1. Typical values are at VCC =

3.3V, T

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

A

PARAMETER CONDITIONS MIN TYP MAX UNITS

SUPPLY VOLTAGE AND CURRENT

Supply Voltage 3.1 3.5 V

Supply Current

RF and IF VGC Input
Bias Current

RF and IF VGC Control Voltage Maximum gain 3.0 V
RF and IF VGC Control Voltage Minimum gain 0.5 V

SERIAL INTERFACE

Input Logic-Level Low

Input Logic-Level High

Output Logic-Level Low 3mA sink current 0.4 V

Output Logic-Level High

Maximum Clock Rate 400 kHz

IF VGA enabled 225 270
Standby (REF oscillator on) R08[7] = 1 5

At 0.5V to 3.0V DC

Continuous Power Dissipation (T

(derate 35.7mW/NC above +70NC) ............................2857mW

Operating Temperature Range ............................. 0NC to +70NC

Junction Temperature .....................................................+150NC

Storage Temperature Range ............................ -65NC to +165NC

Lead Temperature (soldering, 10s) ................................+300NC

Soldering Temperature (reflow) ......................................+260NC

0.7 x
V

CC

V

CC

0.5V

= +70NC)

A

-100 to

-

+100

0.3 x
V

CC

mA

FA

V

V

V

AC ELECTRICAL CHARACTERISTICS

(MAX3543 Evaluation Kit, RF center frequency = 666MHz, IF center frequency = 36.15MHz, registers set according to Table 1,
f

= 16MHz, V

REF

PARAMETER CONDITIONS MIN TYP MAX UNITS

OVERALL REQUIREMENTS (RF INPUT TO IF OUTPUT)

RFINL Operating
Frequency Range

RFINH Operating
Frequency Range

Maximum Voltage
Gain to IFOUT1

2 ______________________________________________________________________________________

RFVGC

= V

= 3.0V, VCC = 3.3V, TA = +25NC, unless otherwise noted.)

IFVGC

Tunable frequency range 47 345 MHz

Tunable frequency range 345 862 MHz

DVB-T mode (see Table 1) 50 dB

Multiband Analog and

Digital Television Tuner

AC ELECTRICAL CHARACTERISTICS (continued)

(MAX3543 Evaluation Kit, RF center frequency = 666MHz, IF center frequency = 36.15MHz, registers set according to Table 1,
f

= 16MHz, V

REF

PARAMETER CONDITIONS MIN TYP MAX UNITS

RF Gain Control Range (gain at V
Noise Figure 4 dB

Image Rejection

IF VARIABLE-GAIN AMPLIFIER

Maximum Voltage Gain

Minimum Voltage Gain

In-Channel Output V1dB 36.15MHz CW output signal > 2.5 V

DETECTOR

Wideband Detector
Input-Referred Attack Point

Narrowband Detector
Input-Referred Attack Point

SIGMA-DELTA FRAC-N SYNTHESIZER

N-Divider Value 19 251
Fractional-N Resolution 20 Bits
Phase-Detector Frequency f
Phase-Detector Frequency f

REFERENCE OSCILLATOR

Frequency (Note 2) 16 32 MHz
External Overdrive Level AC-coupled sine-wave input 0.5 1.5 V

REFERENCE OSCILLATOR OUTPUT BUFFER

Output Frequency /1, /4 modes 4 4 f
Output Level

Note 1: Guaranteed by production test at +25NC. 0NC and +70NC are guaranteed by design and characterization.
Note 2: Guaranteed by design and characterization.

RFVGC

= V

= 3.0V, VCC = 3.3V, TA = +25NC, unless otherwise noted.)

IFVGC

= 3.0V) - (gain at V

RFVGC

Image applied at 77.8MHz
above desired channel’s
center frequency

Output load impedance > 2kI||3pF, differential load

Output load impedance > 2kI||3pF, differential load,

= 0.5V

V

IFVGC

Programmable, R0B[6:4] = 100, CW input signal -36 dBm

Programmable, R0B[2:0] = 011, CW input signal -47 dBm

/2 8 10.5 MHz

XTAL

/1 16 21 MHz

XTAL

Load Impedance > 20kI||3pF

= 0.5V) 53 dB

RFVGC

47MHz to 470MHz > 70

470MHz to 862MHz > 65

60 dB

19 dB

1.1 V

XTAL

dB

P-P

P-P

MHz

P-P

MAX3543

_______________________________________________________________________________________ 3

Multiband Analog and
Digital Television Tuner

Typical Register Summary

Table 1 shows register settings to configure the MAX3543
for operation with a 16MHz crystal frequency and
666MHz RF frequency with a differential LC bandpass
filter.

Table 1. Typical Register Settings

MAX3543

REGISTER

NAME

R00 0x00 VCO 4C 4C
R01 0x01 NDIV INT 2B 57
R02 0x02 NDIV FRAC2 8E 9C
R03 0x03 NDIV FRAC1 26 4C
R04 0x04 NDIV FRAC0 (VAS Trigger) 66 CD
R05 0x05 MODE CTRL D8 DA
R06 0x06 TFS Calculated from ROM values Calculated from ROM values
R07 0x07 TFP Calculated from ROM values Calculated from ROM values
R08 0x08 SHUTDOWN 00 08
R09 0x09 REF CONFIG 0A 0A
R0A 0x0A VAS CONFIG 16 16

R0B 0x0B PWRDET CFG1 43 43
R0C 0x0C PWRDET CFG2 01 03
R0D 0x0D FILT CF ADJ Read from ROM Read from ROM
R0E 0x0E ROM ADDR 00 00

R0F 0x0F IRHR Read from ROM Read from ROM

R10 0x10 ROM READBACK Read only Read only
R11 0x11 VAS STATUS Read only Read only
R12 0x12 GEN STATUS Read only Read only
R13 0x13 BIAS ADJ 56 16
R14 0x14 TEST1 40 40
R15 0x15 ROM WRITE DATA Maxim use only Maxim use only

REGISTER

ADDRESS

REGISTER FUNCTION

DVB-T MODE, 8MHz

DIFFERENTIAL IF

(hex)

PAL MODE,

ATV OUTPUT

(hex)

4 ______________________________________________________________________________________

Multiband Analog and

Digital Television Tuner

Typical Operating Characteristics

(MAX3543 Evaluation Kit, VCC = 3.3V, TA = +25NC, registers set according to Table 1, unless otherwise noted.)

MAX3543

CASCADED DTV VOLTAGE GAIN

vs. FREQUENCY

100

95

90

85

80

75

VOLTAGE GAIN (dB)

70

65

60

0 900

+70°C

FREQUENCY (MHz)

CASCADED DTV VOLTAGE GAIN

vs. IFVGC VOLTAGE

100

fRF = 666MHz

90

80

70

60

VOLTAGE GAIN (dB)

50

40

30

0.5 3.0
IFVGC VOLTAGE (V)

0°C

+70°C

ATV VOLTAGE GAIN

vs. RFVGC VOLTAGE

60

fRF = 666MHz

50

40

30

20

10

VOLTAGE GAIN (dB)

0

-10

-20

0.5 3.0

0°C

+70°C

RFVGC VOLTAGE (V)

0°C

+25°C

DVB-T MODE

800700100 200 300 500400 600

+25°C

DVB-T MODE

2.52.01.51.0

+25°C

ATV MODE

2.52.01.0 1.5

MAX3543 toc01

MAX3543 toc03

MAX3543 toc05

CASCADED DTV VOLTAGE GAIN

vs. RFVGC VOLTAGE

100

fRF = 666MHz

90

80

70

60

50

VOLTAGE GAIN (dB)

40

30

20

0.5 3.0

0°C

+70°C

RFVGC VOLTAGE (V)

ATV VOLTAGE GAIN

vs. FREQUENCY

60

55

50

45

40

35

VOLTAGE GAIN (dB)

30

25

20

0 900

+25°C

+70°C

FREQUENCY (MHz)

NOISE FIGURE

vs. FREQUENCY

10

9

8

7

6

5

4

NOISE FIGURE (dB)

3

2

1

0

INPUT DIPLEXER CROSSOVER

FREQUENCY IS 345MHz

+25°C

0 900

FREQUENCY (MHz)

+25°C

DVB-T MODE

2.52.01.0 1.5

0°C

ATV MODE

800700100 200 300 500400 600

ATV MODE

800700500 600200 300 400100

MAX3543 toc02

MAX3543 toc04

MAX3543 toc06

_______________________________________________________________________________________ 5

Multiband Analog and
Digital Television Tuner

Typical Operating Characteristics (continued)

(MAX3543 Evaluation Kit, VCC = 3.3V, TA = +25NC, registers set according to Table 1, unless otherwise noted.)

-70

MAX3543

-72

-74

-76

-78

-80

-82

SENSITIVITY (dBm)

-84

-86

-88

-90

100

90

80

70

60

IMAGE REJECTION (dB)

50

40

30

DVB-T SENSITIVITY vs. FREQUENCY

64QAM (3/4CR, 1/4GI, 8K, 8MHz), BER < 2e-4

NORDIG SPECIFICATION

MEASURED MAX3543

0 900

FREQUENCY (MHz)

800700500 600200 300 400100

IMAGE REJECTION

vs. FREQUENCY

0°C

+70°C

+25°C

DVB-T MODE

0 900800

FREQUENCY (MHz)

700600500400300200100

MAX3543 toc07

MAX3543 toc09

DVB-T DIGITAL BLOCKER HANDLING

vs. BLOCKER CHANNEL

-20
64QAM (3/4CR, 1/4GI, 8K, 8MHz), BER < 2e-4

-25

-30

-35

-40

DESIRED/BLOCKER (dB)

-45

-50

MEASURED MAX3543

-55

-4 9
RELATIVE BLOCKER CHANNEL

NORDIG SPECIFICATION

DETECTOR ATTACK POINT

vs. DETECTOR THRESHOLD SETTING

-25
fRF = 666MHz, CW TONE, DVB-T MODE

-30

-35

-40

-45

-50

-55

INPUT-REFERRED ATTACK POINT (dBm)

-60

WIDEBAND DETECTOR

NARROWBAND DETECTOR

0 7

DETECTOR THRESHOLD SETTING

MAX3543 toc08

876543210-1-2-3

MAX3543 toc10

654321

0.9
f

= 16MHz

XTAL

0.6

0.3

0

-0.3

REFOUT VOLTAGE (V)

-0.6

-0.9
0 0.5

/1 MODE (16MHz)

MAX3543 toc11

/4 MODE (4MHz)

0.40.30.20.1

TIME (µs)

6 ______________________________________________________________________________________

REFOUT VOLTAGE vs. TIME