Datasheet

ManualsBrandsMAXIM INTEGRATED ManualsLinear ICsMAX3543CTL+

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Multiband Analog and

Digital Television Tuner

MAX3543

19-4985; Rev 2; 7/10

Ordering Information

Block Diagram/Typical Application Circuit/Pin Configuration

General Description

The MAX3543 hybrid broadband single-conversion tele-

vision 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

Features

S Standard IF Architecture Ensures < -70dBc Spurs

S Integrated RF Tracking Filter

S Integrated IF Bandpass Filter

Full-Band Coverage (47MHz to 862MHz)

70dB Image Rejection

4dB Noise Figure

Fast-Locking, Low Phase-Noise PLL Supports

256QAM

S Crystal Oscillator and Buffer/Divider to Drive

Baseband IC

S 745mW Power Dissipation

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

*EP = Exposed paddle.

DVB-T/DVB-T2 +

PAL/SECAM

DVB-C + PAL/SECAM

DTMB/GB20600 + PAL

ATSC + NTSC

EVALUATION KIT

AVAILABLE

PART TEMP RANGE PIN-PACKAGE

MAX3543CTL+

0NC to +70NC

40 TQFN-EP*

RFGND1

CCIF

RFGND2

IFOUT1A

IFOUT1B

RFINH

TUNE

SDA

LDOBYP

TFVL1

REFDIV

XTALE

1 2

TFU1

4 5 6 7

27282930 26 24 23 22

TFU2A

TFU2B

REFOUT

GND

DTVOUT+

DTVOUT-

RFVGC

GND

TFU3

IFOUT2

LEXT

RFINL

GND

IFIN+

TFVH2

CCDIG

TFVH1

SCL

IFVGC

ADDR

IFIN-

XTALB

8 9 10

TFVL2

MAX3543

IFVGC

REF_OUT

DIGITAL

DEMODULATOR

A + D

DEMODULATOR

ANALOG

DEMODULATOR

LC BANDPASS

FILTER

DIG_IF

ANA_IF

FRAC-N

PLL

TRACKING

FILTER

PDET

NOTE: LAYOUT FITS 25mm x 20mm ON 2-LAYER BOARD WITH DEVICE PLACEMENT ON TOP SIDE ONLY.

Summary of content (20 pages)

PAGE 1
9-4985; Rev 2; 7/10 TION KIT EVALUA BLE IL AVA A Multiband Analog and Digital Television Tuner Features 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.
PAGE 2
MAX3543 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 (VCC + 0.3V) SDA, SCLK, IFAGC, RFVGA.................................-0.3V to +3.6V Short-Circuit Protection: DTVOUT+, DTVOUT-, IFOUT1A, IFOUT1B, IFOUT2..................................... Indefinite RF Input Power.....................................
PAGE 3
Multiband Analog and Digital Television Tuner (MAX3543 Evaluation Kit, RF center frequency = 666MHz, IF center frequency = 36.15MHz, registers set according to Table 1, fREF = 16MHz, VRFVGC = VIFVGC = 3.0V, VCC = 3.3V, TA = +25NC, unless otherwise noted.) PARAMETER RF Gain Control Range CONDITIONS MIN (gain at VRFVGC = 3.0V) - (gain at VRFVGC = 0.5V) Noise Figure Image applied at 77.
PAGE 4
MAX3543 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.
PAGE 5
Multiband Analog and Digital Television Tuner CASCADED DTV VOLTAGE GAIN vs. FREQUENCY VOLTAGE GAIN (dB) +25°C 80 +70°C 75 0°C 70 +25°C 60 50 +70°C 40 65 30 DVB-T MODE DVB-T MODE 20 60 0 0.5 100 200 300 400 500 600 700 800 900 1.0 1.5 2.0 2.5 FREQUENCY (MHz) RFVGC VOLTAGE (V) CASCADED DTV VOLTAGE GAIN vs. IFVGC VOLTAGE ATV VOLTAGE GAIN vs. FREQUENCY fRF = 666MHz 90 60 MAX3543 toc03 100 0°C 55 0°C +25°C 3.
PAGE 6
Typical Operating Characteristics (continued) (MAX3543 Evaluation Kit, VCC = 3.3V, TA = +25NC, registers set according to Table 1, unless otherwise noted.
PAGE 7
Multiband Analog and Digital Television Tuner PIN NAME 1 RFINH 2 RFGND1 FUNCTION High-Frequency RF Input. Matched to 75I over the operating band. Requires a DC-blocking capacitor. RF Ground. Bypass to the PCB’s ground plane with a 1000pF capacitor. Keep traces as short as possible to minimize inductance to ground plane. Do not connect RFGND1 and RFGND2 together. 3 RFVGC 4 VCCIF 5 RFGND2 RF Ground. Bypass to the PCB’s ground plane with a 1000pF capacitor.
PAGE 8
MAX3543 Multiband Analog and Digital Television Tuner Pin Description (continued) PIN NAME 30 TFVL1* VHF Low Tracking Filter 1 31 TFVL2* VHF Low Tracking Filter 2 32 TFVH1* VHF High Tracking Filter 1 33 TFVH2* VHF High Tracking Filter 2 34 TFU1* 35 TFU2A* UHF Tracking Filter 2A 36 TFU2B* UHF Tracking Filter 2B 37 TFU3* 38 LEXT* RF VGA Supply Voltage. Connect through a 270nH pullup inductor to VCC. 40 RFINL Low-Frequency RF Input. Matched to 75I over the operating band.
PAGE 9
Multiband Analog and Digital Television Tuner S 1 1 0 0 0 ADDR2 ADDR1 R/W ACK 1 2 3 4 5 6 7 8 9 P SDA SCL NOTE: TIMING PARAMETERS CONFORM WITH I2C BUS SPECIFICATIONS. Figure 1. MAX3543 Slave Address Byte. Example shows read address 0x0C1 (ADDR pin grounded). The MAX3543 continuously awaits a START condition followed by its slave address.
PAGE 10
MAX3543 Multiband Analog and Digital Television Tuner Control Register Description The MAX3543 includes 18 programmable registers, two status registers (read only), one register for ROM readback (read only), and one for Maxim use only. The programmable registers configure the VCO settings, PLL settings, detector and AGC settings, state control, bias adjustments, individual block shutdown, and the tracking filter frequency. These programmable registers are also readable.
PAGE 11
Multiband Analog and Digital Television Tuner Table 4. R00: VCO Register—VCO and LO Divider Control (Address: 00h) BIT NAME VCO[1:0] VSUB[3:0] VDIV[1:0] BIT LOCATION (0 = LSB) 7:6 5:2 1:0 TYPICAL SETTING FUNCTION 01 VCO select. Selects one of three VCOs when VAS = 0, or selects the VCO starting band when VASS = 0.
PAGE 12
MAX3543 Multiband Analog and Digital Television Tuner Table 7. R03: NDIV FRAC1 Register—N-Divider Fractional Part [15:8] (Address: 03h) BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING F[15:8] 7:0 0010 0110 FUNCTION N-divider fractional part bits 15:8 (out of 19:0) Table 8. R04: NDIV FRAC0 Register—N-Divider Fractional Part [7:0] (Address: 04h) BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING FUNCTION F[7:0] 7:0 0110 0110 N-divider fractional part bits 7:0 (out of 19:0).
PAGE 13
Multiband Analog and Digital Television Tuner BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING EMPTY 7:6 00 Empty TFP[5:0] 5:0 N/A Programs parallel capacitor values in the tracking filter. The value is determined from the values in the ROM table applied to an equation executed in the Maximprovided device driver code. FUNCTION Table 12. R08: SHUTDOWN Register—Shutdown Control (Address: 08h) BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING STBY 7 0 Standby.
PAGE 14
MAX3543 Multiband Analog and Digital Television Tuner Table 14. R0A: VAS CONFIG Register—VCO Autoselect Configuration (Address: 0Ah) BIT NAME LFDIV[1:0] BIT LOCATION (0 = LSB) 7:6 TYPICAL SETTING FUNCTION 00 Sets the low-frequency clock divider. 00 = Use for 16MHz P fREF < 20MHz 01 = Use for 20MHz P fREF < 28MHz 10 = Use for 28MHz P fREF P 32MHz 11 = Unused VASS 5 0 Controls the VCO autoselect (VAS) start conditions function.
PAGE 15
Multiband Analog and Digital Television Tuner BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING EMPTY 7:3 0000 0 PULLUP 2 0 Must set to 0 for proper operation 01 RF IF AGC diode voltage. 00 = Approximately 0.6V 01 = Approximately 0.95V 10 = Approximately 1.3V 11 = Off RFIFD[1:0] 1:0 FUNCTION Empty Table 17.
PAGE 16
MAX3543 Multiband Analog and Digital Television Tuner Table 21. R11: VAS STATUS Register—VCO Autoselect Status (Address: 11h) BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING FUNCTION Indicates which VCO has been selected by either the autoselect state machine or by manual selection when the VSA state machine is disabled. See the R00 description for the VCO[1:0] definition.
PAGE 17
Multiband Analog and Digital Television Tuner BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING RESERVED 7:0 0100 0000 MAX3543 Table 24. R14: TEST1 Register (Address: 14h) FUNCTION Must set to 0100 0000 for proper operation Note: This register is not available to the end user. Table 25. R15: ROM WRITE DATA Register (Address: 15h) BIT NAME BIT LOCATION (0 = LSB) TYPICAL SETTING ROMW[7:0] 7:0 N/A FUNCTION Maxim use only Note: This register is not available to the end user.
PAGE 18
MAX3543 Multiband Analog and Digital Television Tuner Table 26. ROM Table DESCRIPTION ADDR MSB BIAS 0x0 VHF-Low Tracking Filter. VLS0, VLS1, VLP0, VLP1 VHF-High Tracking Filter. VHS0, VHS1, VHP0, VHP1 UHF Tracking Filter.
PAGE 19
Multiband Analog and Digital Television Tuner PACKAGE TYPE PACKAGE CODE OUTLINE No. LAND PATTERN NO. 40 TQFN-EP T4066+2 21-0141 90-0053 ______________________________________________________________________________________ 19 MAX3543 Package Information For the latest package outline information and land patterns, go to www.maxim-ic.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only.
PAGE 20
Multiband Analog and Digital Television Tuner MAX3543 Revision History REVISION NUMBER REVISION DATE 0 10/09 Initial release 1 4/10 Updated Applications, extended Frequency specification in AC Electrical Characteristics, and updated Tables 14, 15, and 23 to enable some features 2 7/10 Corrected Figure 3 DESCRIPTION PAGES CHANGED — 1, 3, 14, 16 9 Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product.