MAX3543CTL+T Maxim Integrated Products, MAX3543CTL+T Datasheet - Page 7

• Manufacturer Part Number: MAX3543CTL+T
• Description: RF Receiver Multi-band Ananlog a and Digital TV Tuner
• Manufacturer: Maxim Integrated Products

Specifications of MAX3543CTL+T

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12, 17, 26
13, 27,
10, 11
29, 39
15, 16
PIN
14
18
19
20
21
22
23
24
25
28
1
2
3
4
5
6
7
8
9
IFIN-, IFIN+ Differential IF VGA Input. Connect to the IF filter output.
DTVOUT-,
DTVOUT+
RFGND1
RFGND2
IFOUT1A
IFOUT1B
REFOUT
LDOBYP
IFOUT2
V
REFDIV
RFVGC
XTALB
NAME
RFINH
IFVGC
XTALE
ADDR
V
TUNE
GND
CCDIG
SCL
SDA
V
CCIF
CC
_______________________________________________________________________________________
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.
RF VGA Gain Control Voltage. Accepts a DC voltage from 0.5V to 3V.
IF Power Supply. Requires a 600I series ferrite bead to a bypass capacitor to ground.
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.
Dual-Mode DTV IF Output. In single-ended mode, this pin is the IF signal output. In differential mode, this
pin is the positive terminal of the differential IF output.
Dual-Mode DTV IF Output. In single-ended mode, this pin is the SAW filter bandwidth switch. In
differential mode, this pin is the negative terminal of the differential IF output.
IF VGA Gain Control Voltage. Accepts a DC voltage from 0.5V to 3V.
2-Wire Serial-Interface Address Line. This pin sets the device address for the I
interface. There are three selectable addresses based on the state of this pin: logic-low, logic-high, or
unconnected.
Ground. Connect pin to paddle ground to minimize trace inductance.
Power-Supply Connections. Bypass each supply pin with a separate 1000pF capacitor to ground.
Single-Ended IF Output. Connect to the analog demodulator input. Requires a 1000pF DC-blocking
capacitor.
Differential IF VGA Output. Connect to the demodulator input. Requires a 1000pF DC-blocking capacitor.
Crystal Output to Drive Baseband IC. Output frequency is f
Digital Supply. Requires a 15I series resistor to a 1FF bypass capacitor.
2-Wire Serial Clock Interface. Connect to the serial bus and ensure the bus includes an approximately
5kI pullup resistor.
Crystal Oscillator Base. Connect to the crystal through a DC-blocking capacitor and connect a capacitor
to XTALE.
Crystal Oscillator Emitter. Connect a capacitor to ground and a capacitor to XTALB.
Reference Frequency Divider Control. Three modes are available depending on the state of this pin:
high = f
register is not guaranteed; therefore, unconnected mode should only be used if the controller can
reprogram I
2-Wire Serial Data Interface. Connect to serial bus and ensure the bus includes an approximately 5kI
pullup resistor.
PLL Charge-Pump Output and TUNE Input. Connect to the PLL loop filter.
Bypass for On-Chip VCO LDO. Bypass to ground with a 0.47FF capacitor.
XTAL
/1, low = f
2
C in any of the divider settings.
XTAL
/4, unconnected = state determined by register. Note: Power-up state of
Digital Television Tuner
Multiband Analog and
FUNCTION
XTAL
or f
XTAL
/4.
Pin Description
2
C-compatible serial
7