MAX2160/MAX2160EBG
ISDB-T Single-Segment Low-IF Tuners
_______________________________________________________________________________________ 9
Pin Description
PIN BUMP NO.
TQFN WLP
NAME DESCRIPTION
1, 11, 15, 21,
24, 28, 30, 31
29, 33, 34, 35,
36, 45, 46
N.C. No Connection. Connect to the PC board ground plane.
2 2 TCXO
High-Impedance Buffer for External TCXO. When ENTCXO is pulled high, this input
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.
5 12 VCCXTAL
DC Power Supply for Crystal-Oscillator Circuits. Connect to a +2.85V low-noise
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.
7 5 VCCDIG
DC Power Supply for Digital Logic Circuits. Connect to a +2.85V low-noise 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.
8 14 SDA 2-Wire Serial Data Interface. Requires a pullup resistor to V
CC
.
9 7 SCL 2-Wire Serial Clock Interface. Requires a pullup resistor to V
CC
.
10 19 LTC
PLL Lock Time Constant. LTC sources current to an external charging capacitor to
set the time constant for the VCO autoselect (VAS) function. See the Loop Time
Constant Pin section in the Applications Information.
12 9 VCCBIAS
DC Power Supply for Bias Circuits. Connect to a +2.85V low-noise 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.
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.
16 24 VCCLNA
DC Power Supply for LNA. Connect to a +2.85V low-noise 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.
17 25 GC1
RF Gain-Control Input. High-impedance analog input, with a 0.3V to 2.7V operating
range. V
GC1
= 0.3V corresponds to the maximum gain setting.
18 28 VCCMX
DC Power Supply for RF Mixer Circuits. Connect to a +2.85V low-noise 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.
19 38 PWRDET
Power-Detector Output. See the IF Power Detector section in the Applications
Information.
