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MAX2160EBG
(Rev.:2005)

ISDB-T Single-Segment Low-IF Tuners

Maxim Integrated 

ISDB-T Single-Segment Low-IF Tuners

Pin Description

PIN

TQFN

1, 11, 15, 21,

24, 28, 30, 31

BUMP NO.

WLP

29, 33, 34, 35,

36, 45, 46

NAME

N.C.

DESCRIPTION

No Connection. Connect to the PC board ground plane.

High-Impedance Buffer for External TCXO. When ENTCXO is pulled high, this input

2

2

TCXO is enabled for use with an external TCXO and the internal crystal oscillator is

disabled. Requires a DC-blocking capacitor.

3

11

XTAL

Crystal-Oscillator Interface. When ENTCXO is pulled low, this input is enabled for use

with an external parallel resonance mode crystal. See the Typical Operating Circuit.

4

—

GNDXTAL Crystal-Oscillator Circuit Ground. Connect to the PC board ground plane.

DC Power Supply for Crystal-Oscillator Circuits. Connect to a +2.85V low-noise

5

12

VCCXTAL supply. Bypass to GND with a 100pF capacitor connected as close to the pin as

possible. Do not share capacitor ground vias with other ground connections.

6

4

XTALOUT Crystal Oscillator Buffer Output. A DC-blocking capacitor must be used when driving

external circuitry.

DC Power Supply for Digital Logic Circuits. Connect to a +2.85V low-noise supply.

7

5

VCCDIG Bypass to GND with a 100pF capacitor connected as close to the pin as possible.

Do not share capacitor ground vias with other ground connections.

8

14

SDA 2-Wire Serial Data Interface. Requires a pullup resistor to VCC.

9

7

SCL

2-Wire Serial Clock Interface. Requires a pullup resistor to VCC.

PLL Lock Time Constant. LTC sources current to an external charging capacitor to

10

19

LTC

set the time constant for the VCO autoselect (VAS) function. See the Loop Time

Constant Pin section in the Applications Information.

DC Power Supply for Bias Circuits. Connect to a +2.85V low-noise supply. Bypass to

12

9

VCCBIAS GND with a 100pF capacitor connected as close to the pin as possible. Do not share

capacitor ground vias with other ground connections.

13

17

RFIN Wideband 50Ω RF Input. Connect to an RF source through a DC-blocking capacitor.

14

22

SHDN

Device Shutdown. Logic-low turns off the entire device including the 2-wire

compatible bus. SHDN overrides all software shutdown modes.

DC Power Supply for LNA. Connect to a +2.85V low-noise supply. Bypass to GND

16

24

VCCLNA with a 100pF capacitor connected as close to the pin as possible. Do not share

capacitor ground vias with other ground connections.

17

25

GC1

RF Gain-Control Input. High-impedance analog input, with a 0.3V to 2.7V operating

range. VGC1 = 0.3V corresponds to the maximum gain setting.

DC Power Supply for RF Mixer Circuits. Connect to a +2.85V low-noise supply.

18

28

VCCMX Bypass to GND with a 100pF capacitor connected as close to the pin as possible.

Do not share capacitor ground vias with other ground connections.

19

38

PWRDET Power-Detector Output. See the IF Power Detector section in the Applications

Information.

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