MAX3580ETJ+T Maxim Integrated Products, MAX3580ETJ+T Datasheet - Page 10

• Manufacturer Part Number: MAX3580ETJ+T
• Description: IC TV TUNER DIRECT-CONV 32TQFN
• Manufacturer: Maxim Integrated Products
• Type: Direct Conversion TV Tunerr

Specifications of MAX3580ETJ+T

• Applications: Set-Top Boxes
• Mounting Type: Surface Mount
• Package / Case: 32-TQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Direct-Conversion TV Tuner
10
______________________________________________________________________________________
PIN
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
—
1
2
3
4
5
6
7
8
9
GND_TUNE
OVLD_DET
REF_BUFF
VCC_XTAL
GND_LNA
VCC_VCO
VCC_SYN
GND_PLL
BB_AGC
GND_CP
RF_AGC
VCC_BB
VCC_RF
ADDR2
VTUNE
NAME
RFIN2
BBQ+
BBQ-
LEXT
IND1
IND2
BBI+
RFIN
MUX
SDA
N.C.
LDO
SCL
BBI-
CP
XB
XE
EP
Serial-Data Input Line. Requires a pullup resistor to V
Serial-Clock Input. Requires a pullup resistor to V
Second RF Input
First RF Input
Address Line. Sets the 3rd LSB of the device address. Connect to ground to set for “0” or V
for “1.”
Not Internally Connected. Connect to ground.
DC Supply for RF LNA. Connect as close as possible a 100pF capacitor from this pin to GND.
External Bias Inductor. Connect to V
Gain Control Input for RF VGA.
VHF Inductor Pin 1. Keep traces to inductor as short as possible.
VHF Inductor Pin 2. Keep traces to inductor as short as possible.
No Connection
Overload Detector. Do not connect any circuitry to this pin.
D C S up p l y for Baseb and Fi l ter . C onnect as cl ose as p ossi b l e a 10nF cap aci tor fr om thi s p i n to g r ound .
Quadrature Inverted Baseband Output
Quadrature Noninverted Baseband Output
In-Phase, Inverted Baseband Output
In-Phase, Noninverted Baseband Output
Gain Control Input for Baseband VGAs
DC Supply for the VCO. Connect as close as possible a 100pF capacitor from this pin to ground.
VCO Tuning Voltage Input. Connect the PLL loop filter output directly to this pin.
Ground Reference for the Tuning Voltage. Connect to ground of the loop filter.
VCO LDO Output. Connect a 0.1µF capacitor to ground.
Charge-Pump Output. Connect the charge-pump output to the PLL loop filter input.
Ground for the Charge Pump
DC Supply for Synthesizer and Serial-Interface Control. Connect as close as possible a 10nF
capacitor from this pin to ground.
Ground for the PLL
Multiplex Output Line. Can be used as a PLL lock-detector output.
Buffered Output of Reference Oscillator
D C S up p l y for Refer ence Osci l l ator . C onnect as cl ose as p ossi b l e a 10nF cap aci tor fr om thi s p i n to g r ound .
Reference Input. Connect to a parallel resonant mode XTAL through a load-matching capacitor, or
can also be used as a reference clock input pin.
Reference Oscillator Feedback. Connect to a capacitive divider when used in self-oscillating mode.
Exposed Paddle. Internally connected to ground. Solder EP to the board’s ground plane to achieve
the lowest possible impedance path and optimum RF performance.
CC
with a 270nH inductor.
FUNCTION
CC
.
CC
.
Pin Description
CC
to set